mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-05 09:11:04 +00:00
1887 lines
63 KiB
C++
1887 lines
63 KiB
C++
//
|
|
// Copyright (C) Pixar. All rights reserved.
|
|
//
|
|
// This license governs use of the accompanying software. If you
|
|
// use the software, you accept this license. If you do not accept
|
|
// the license, do not use the software.
|
|
//
|
|
// 1. Definitions
|
|
// The terms "reproduce," "reproduction," "derivative works," and
|
|
// "distribution" have the same meaning here as under U.S.
|
|
// copyright law. A "contribution" is the original software, or
|
|
// any additions or changes to the software.
|
|
// A "contributor" is any person or entity that distributes its
|
|
// contribution under this license.
|
|
// "Licensed patents" are a contributor's patent claims that read
|
|
// directly on its contribution.
|
|
//
|
|
// 2. Grant of Rights
|
|
// (A) Copyright Grant- Subject to the terms of this license,
|
|
// including the license conditions and limitations in section 3,
|
|
// each contributor grants you a non-exclusive, worldwide,
|
|
// royalty-free copyright license to reproduce its contribution,
|
|
// prepare derivative works of its contribution, and distribute
|
|
// its contribution or any derivative works that you create.
|
|
// (B) Patent Grant- Subject to the terms of this license,
|
|
// including the license conditions and limitations in section 3,
|
|
// each contributor grants you a non-exclusive, worldwide,
|
|
// royalty-free license under its licensed patents to make, have
|
|
// made, use, sell, offer for sale, import, and/or otherwise
|
|
// dispose of its contribution in the software or derivative works
|
|
// of the contribution in the software.
|
|
//
|
|
// 3. Conditions and Limitations
|
|
// (A) No Trademark License- This license does not grant you
|
|
// rights to use any contributor's name, logo, or trademarks.
|
|
// (B) If you bring a patent claim against any contributor over
|
|
// patents that you claim are infringed by the software, your
|
|
// patent license from such contributor to the software ends
|
|
// automatically.
|
|
// (C) If you distribute any portion of the software, you must
|
|
// retain all copyright, patent, trademark, and attribution
|
|
// notices that are present in the software.
|
|
// (D) If you distribute any portion of the software in source
|
|
// code form, you may do so only under this license by including a
|
|
// complete copy of this license with your distribution. If you
|
|
// distribute any portion of the software in compiled or object
|
|
// code form, you may only do so under a license that complies
|
|
// with this license.
|
|
// (E) The software is licensed "as-is." You bear the risk of
|
|
// using it. The contributors give no express warranties,
|
|
// guarantees or conditions. You may have additional consumer
|
|
// rights under your local laws which this license cannot change.
|
|
// To the extent permitted under your local laws, the contributors
|
|
// exclude the implied warranties of merchantability, fitness for
|
|
// a particular purpose and non-infringement.
|
|
//
|
|
|
|
#if defined(__APPLE__)
|
|
#if defined(OSD_USES_GLEW)
|
|
#include <GL/glew.h>
|
|
#else
|
|
#include <OpenGL/gl3.h>
|
|
#endif
|
|
#define GLFW_INCLUDE_GL3
|
|
#define GLFW_NO_GLU
|
|
#else
|
|
#include <stdlib.h>
|
|
#include <GL/glew.h>
|
|
#if defined(WIN32)
|
|
#include <GL/wglew.h>
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(GLFW_VERSION_3)
|
|
#include <GLFW/glfw3.h>
|
|
GLFWwindow* g_window=0;
|
|
GLFWmonitor* g_primary=0;
|
|
#else
|
|
#include <GL/glfw.h>
|
|
#endif
|
|
|
|
#include <osd/error.h>
|
|
#include <osd/vertex.h>
|
|
#include <osd/glDrawContext.h>
|
|
#include <osd/glDrawRegistry.h>
|
|
|
|
#include <osd/cpuGLVertexBuffer.h>
|
|
#include <osd/cpuComputeContext.h>
|
|
#include <osd/cpuComputeController.h>
|
|
OpenSubdiv::OsdCpuComputeController *g_cpuComputeController = NULL;
|
|
|
|
#ifdef OPENSUBDIV_HAS_OPENMP
|
|
#include <osd/ompComputeController.h>
|
|
OpenSubdiv::OsdOmpComputeController *g_ompComputeController = NULL;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_GCD
|
|
#include <osd/gcdComputeController.h>
|
|
OpenSubdiv::OsdGcdComputeController *g_gcdComputeController = NULL;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_OPENCL
|
|
#include <osd/clGLVertexBuffer.h>
|
|
#include <osd/clComputeContext.h>
|
|
#include <osd/clComputeController.h>
|
|
|
|
#include "../common/clInit.h"
|
|
|
|
cl_context g_clContext;
|
|
cl_command_queue g_clQueue;
|
|
OpenSubdiv::OsdCLComputeController *g_clComputeController = NULL;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_CUDA
|
|
#include <osd/cudaGLVertexBuffer.h>
|
|
#include <osd/cudaComputeContext.h>
|
|
#include <osd/cudaComputeController.h>
|
|
|
|
#include <cuda_runtime_api.h>
|
|
#include <cuda_gl_interop.h>
|
|
|
|
#include "../common/cudaInit.h"
|
|
|
|
bool g_cudaInitialized = false;
|
|
OpenSubdiv::OsdCudaComputeController *g_cudaComputeController = NULL;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK
|
|
#include <osd/glslTransformFeedbackComputeContext.h>
|
|
#include <osd/glslTransformFeedbackComputeController.h>
|
|
#include <osd/glVertexBuffer.h>
|
|
OpenSubdiv::OsdGLSLTransformFeedbackComputeController *g_glslTransformFeedbackComputeController = NULL;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_GLSL_COMPUTE
|
|
#include <osd/glslComputeContext.h>
|
|
#include <osd/glslComputeController.h>
|
|
#include <osd/glVertexBuffer.h>
|
|
OpenSubdiv::OsdGLSLComputeController *g_glslComputeController = NULL;
|
|
#endif
|
|
|
|
#include <osd/glMesh.h>
|
|
OpenSubdiv::OsdGLMeshInterface *g_mesh;
|
|
|
|
#include <common/shape_utils.h>
|
|
#include "../common/stopwatch.h"
|
|
#include "../common/simple_math.h"
|
|
#include "../common/gl_hud.h"
|
|
#include "../common/patchColors.h"
|
|
|
|
static const char *shaderSource =
|
|
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
|
|
#include "shader.inc"
|
|
#else
|
|
#include "shader_gl3.inc"
|
|
#endif
|
|
;
|
|
|
|
#include <cfloat>
|
|
#include <vector>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
|
|
typedef OpenSubdiv::HbrMesh<OpenSubdiv::OsdVertex> OsdHbrMesh;
|
|
typedef OpenSubdiv::HbrVertex<OpenSubdiv::OsdVertex> OsdHbrVertex;
|
|
typedef OpenSubdiv::HbrFace<OpenSubdiv::OsdVertex> OsdHbrFace;
|
|
typedef OpenSubdiv::HbrHalfedge<OpenSubdiv::OsdVertex> OsdHbrHalfedge;
|
|
|
|
enum KernelType { kCPU = 0,
|
|
kOPENMP = 1,
|
|
kGCD = 2,
|
|
kCUDA = 3,
|
|
kCL = 4,
|
|
kGLSL = 5,
|
|
kGLSLCompute = 6 };
|
|
|
|
enum DisplayStyle { kWire = 0,
|
|
kShaded,
|
|
kWireShaded,
|
|
kVaryingColor };
|
|
|
|
enum HudCheckBox { kHUD_CB_DISPLAY_CAGE_EDGES,
|
|
kHUD_CB_DISPLAY_CAGE_VERTS,
|
|
kHUD_CB_ANIMATE_VERTICES,
|
|
kHUD_CB_DISPLAY_PATCH_COLOR,
|
|
kHUD_CB_VIEW_LOD,
|
|
kHUD_CB_FRACTIONAL_SPACING,
|
|
kHUD_CB_PATCH_CULL,
|
|
kHUD_CB_FREEZE };
|
|
|
|
struct SimpleShape {
|
|
std::string name;
|
|
Scheme scheme;
|
|
std::string data;
|
|
|
|
SimpleShape() { }
|
|
SimpleShape( std::string const & idata, char const * iname, Scheme ischeme )
|
|
: name(iname), scheme(ischeme), data(idata) { }
|
|
};
|
|
|
|
std::vector<SimpleShape> g_defaultShapes;
|
|
|
|
int g_currentShape = 0;
|
|
|
|
int g_frame = 0,
|
|
g_repeatCount = 0;
|
|
|
|
// GUI variables
|
|
int g_fullscreen = 0,
|
|
g_freeze = 0,
|
|
g_displayStyle = kWireShaded,
|
|
g_adaptive = 0,
|
|
g_drawCageEdges = 1,
|
|
g_drawCageVertices = 0,
|
|
g_mbutton[3] = {0, 0, 0},
|
|
g_running = 1;
|
|
|
|
int g_displayPatchColor = 1,
|
|
g_screenSpaceTess = 0,
|
|
g_fractionalSpacing = 0,
|
|
g_patchCull = 0;
|
|
|
|
float g_rotate[2] = {0, 0},
|
|
g_dolly = 5,
|
|
g_pan[2] = {0, 0},
|
|
g_center[3] = {0, 0, 0},
|
|
g_size = 0;
|
|
|
|
int g_prev_x = 0,
|
|
g_prev_y = 0;
|
|
|
|
int g_width = 1024,
|
|
g_height = 1024;
|
|
|
|
GLhud g_hud;
|
|
|
|
// performance
|
|
float g_cpuTime = 0;
|
|
float g_gpuTime = 0;
|
|
Stopwatch g_fpsTimer;
|
|
|
|
// geometry
|
|
std::vector<float> g_orgPositions,
|
|
g_positions,
|
|
g_normals;
|
|
|
|
Scheme g_scheme;
|
|
|
|
int g_level = 2;
|
|
int g_tessLevel = 1;
|
|
int g_tessLevelMin = 1;
|
|
int g_kernel = kCPU;
|
|
float g_moveScale = 0.0f;
|
|
|
|
GLuint g_transformUB = 0,
|
|
g_transformBinding = 0,
|
|
g_tessellationUB = 0,
|
|
g_tessellationBinding = 0,
|
|
g_lightingUB = 0,
|
|
g_lightingBinding = 0;
|
|
|
|
struct Transform {
|
|
float ModelViewMatrix[16];
|
|
float ProjectionMatrix[16];
|
|
float ModelViewProjectionMatrix[16];
|
|
} g_transformData;
|
|
|
|
GLuint g_primQuery = 0;
|
|
|
|
GLuint g_vao = 0;
|
|
GLuint g_cageEdgeVAO = 0,
|
|
g_cageEdgeVBO = 0,
|
|
g_cageVertexVAO = 0,
|
|
g_cageVertexVBO = 0;
|
|
|
|
std::vector<int> g_coarseEdges;
|
|
std::vector<float> g_coarseEdgeSharpness;
|
|
std::vector<float> g_coarseVertexSharpness;
|
|
|
|
struct Program
|
|
{
|
|
GLuint program;
|
|
GLuint uniformModelViewProjectionMatrix;
|
|
GLuint attrPosition;
|
|
GLuint attrColor;
|
|
} g_defaultProgram;
|
|
|
|
static void
|
|
checkGLErrors(std::string const & where = "")
|
|
{
|
|
GLuint err;
|
|
while ((err = glGetError()) != GL_NO_ERROR) {
|
|
/*
|
|
std::cerr << "GL error: "
|
|
<< (where.empty() ? "" : where + " ")
|
|
<< err << "\n";
|
|
*/
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static GLuint
|
|
compileShader(GLenum shaderType, const char *source)
|
|
{
|
|
GLuint shader = glCreateShader(shaderType);
|
|
glShaderSource(shader, 1, &source, NULL);
|
|
glCompileShader(shader);
|
|
checkGLErrors("compileShader");
|
|
return shader;
|
|
}
|
|
|
|
static bool
|
|
linkDefaultProgram()
|
|
{
|
|
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
|
|
#define GLSL_VERSION_DEFINE "#version 400\n"
|
|
#else
|
|
#define GLSL_VERSION_DEFINE "#version 150\n"
|
|
#endif
|
|
|
|
static const char *vsSrc =
|
|
GLSL_VERSION_DEFINE
|
|
"in vec3 position;\n"
|
|
"in vec3 color;\n"
|
|
"out vec4 fragColor;\n"
|
|
"uniform mat4 ModelViewProjectionMatrix;\n"
|
|
"void main() {\n"
|
|
" fragColor = vec4(color, 1);\n"
|
|
" gl_Position = ModelViewProjectionMatrix * "
|
|
" vec4(position, 1);\n"
|
|
"}\n";
|
|
|
|
static const char *fsSrc =
|
|
GLSL_VERSION_DEFINE
|
|
"in vec4 fragColor;\n"
|
|
"out vec4 color;\n"
|
|
"void main() {\n"
|
|
" color = fragColor;\n"
|
|
"}\n";
|
|
|
|
GLuint program = glCreateProgram();
|
|
GLuint vertexShader = compileShader(GL_VERTEX_SHADER, vsSrc);
|
|
GLuint fragmentShader = compileShader(GL_FRAGMENT_SHADER, fsSrc);
|
|
|
|
glAttachShader(program, vertexShader);
|
|
glAttachShader(program, fragmentShader);
|
|
|
|
glLinkProgram(program);
|
|
|
|
GLint status;
|
|
glGetProgramiv(program, GL_LINK_STATUS, &status);
|
|
if (status == GL_FALSE) {
|
|
GLint infoLogLength;
|
|
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &infoLogLength);
|
|
char *infoLog = new char[infoLogLength];
|
|
glGetProgramInfoLog(program, infoLogLength, NULL, infoLog);
|
|
printf("%s\n", infoLog);
|
|
delete[] infoLog;
|
|
exit(1);
|
|
}
|
|
|
|
g_defaultProgram.program = program;
|
|
g_defaultProgram.uniformModelViewProjectionMatrix =
|
|
glGetUniformLocation(program, "ModelViewProjectionMatrix");
|
|
g_defaultProgram.attrPosition = glGetAttribLocation(program, "position");
|
|
g_defaultProgram.attrColor = glGetAttribLocation(program, "color");
|
|
|
|
return true;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
initializeShapes( ) {
|
|
|
|
#include <shapes/catmark_cube_corner0.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube_corner0, "catmark_cube_corner0", kCatmark));
|
|
|
|
#include <shapes/catmark_cube_corner1.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube_corner1, "catmark_cube_corner1", kCatmark));
|
|
|
|
#include <shapes/catmark_cube_corner2.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube_corner2, "catmark_cube_corner2", kCatmark));
|
|
|
|
#include <shapes/catmark_cube_corner3.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube_corner3, "catmark_cube_corner3", kCatmark));
|
|
|
|
#include <shapes/catmark_cube_corner4.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube_corner4, "catmark_cube_corner4", kCatmark));
|
|
|
|
#include <shapes/catmark_cube_creases0.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube_creases0, "catmark_cube_creases0", kCatmark));
|
|
|
|
#include <shapes/catmark_cube_creases1.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube_creases1, "catmark_cube_creases1", kCatmark));
|
|
|
|
#include <shapes/catmark_cube.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_cube, "catmark_cube", kCatmark));
|
|
|
|
#include <shapes/catmark_dart_edgecorner.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_dart_edgecorner, "catmark_dart_edgecorner", kCatmark));
|
|
|
|
#include <shapes/catmark_dart_edgeonly.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_dart_edgeonly, "catmark_dart_edgeonly", kCatmark));
|
|
|
|
#include <shapes/catmark_edgecorner.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_edgecorner ,"catmark_edgecorner", kCatmark));
|
|
|
|
#include <shapes/catmark_edgeonly.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_edgeonly, "catmark_edgeonly", kCatmark));
|
|
|
|
#include <shapes/catmark_gregory_test1.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_gregory_test1, "catmark_gregory_test1", kCatmark));
|
|
|
|
#include <shapes/catmark_gregory_test2.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_gregory_test2, "catmark_gregory_test2", kCatmark));
|
|
|
|
#include <shapes/catmark_gregory_test3.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_gregory_test3, "catmark_gregory_test3", kCatmark));
|
|
|
|
#include <shapes/catmark_gregory_test4.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_gregory_test4, "catmark_gregory_test4", kCatmark));
|
|
|
|
#include <shapes/catmark_hole_test1.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_hole_test1, "catmark_hole_test1", kCatmark));
|
|
|
|
#include <shapes/catmark_hole_test2.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_hole_test2, "catmark_hole_test2", kCatmark));
|
|
|
|
#include <shapes/catmark_pyramid_creases0.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_pyramid_creases0, "catmark_pyramid_creases0", kCatmark));
|
|
|
|
#include <shapes/catmark_pyramid_creases1.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_pyramid_creases1, "catmark_pyramid_creases1", kCatmark));
|
|
|
|
#include <shapes/catmark_pyramid.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_pyramid, "catmark_pyramid", kCatmark));
|
|
|
|
#include <shapes/catmark_tent_creases0.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_tent_creases0, "catmark_tent_creases0", kCatmark));
|
|
|
|
#include <shapes/catmark_tent_creases1.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_tent_creases1, "catmark_tent_creases1", kCatmark));
|
|
|
|
#include <shapes/catmark_tent.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_tent, "catmark_tent", kCatmark));
|
|
|
|
#include <shapes/catmark_torus.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_torus, "catmark_torus", kCatmark));
|
|
|
|
#include <shapes/catmark_torus_creases0.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_torus_creases0, "catmark_torus_creases0", kCatmark));
|
|
|
|
#include <shapes/catmark_square_hedit0.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_square_hedit0, "catmark_square_hedit0", kCatmark));
|
|
|
|
#include <shapes/catmark_square_hedit1.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_square_hedit1, "catmark_square_hedit1", kCatmark));
|
|
|
|
#include <shapes/catmark_square_hedit2.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_square_hedit2, "catmark_square_hedit2", kCatmark));
|
|
|
|
#include <shapes/catmark_square_hedit3.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_square_hedit3, "catmark_square_hedit3", kCatmark));
|
|
|
|
#include <shapes/catmark_square_hedit4.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_square_hedit4, "catmark_square_hedit4", kCatmark));
|
|
|
|
#include <shapes/catmark_bishop.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_bishop, "catmark_bishop", kCatmark));
|
|
|
|
#include <shapes/catmark_car.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_car, "catmark_car", kCatmark));
|
|
|
|
#include <shapes/catmark_helmet.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_helmet, "catmark_helmet", kCatmark));
|
|
|
|
#include <shapes/catmark_pawn.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_pawn, "catmark_pawn", kCatmark));
|
|
|
|
#include <shapes/catmark_rook.h>
|
|
g_defaultShapes.push_back(SimpleShape(catmark_rook, "catmark_rook", kCatmark));
|
|
|
|
#include <shapes/bilinear_cube.h>
|
|
g_defaultShapes.push_back(SimpleShape(bilinear_cube, "bilinear_cube", kBilinear));
|
|
|
|
|
|
#include <shapes/loop_cube_creases0.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_cube_creases0, "loop_cube_creases0", kLoop));
|
|
|
|
#include <shapes/loop_cube_creases1.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_cube_creases1, "loop_cube_creases1", kLoop));
|
|
|
|
#include <shapes/loop_cube.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_cube, "loop_cube", kLoop));
|
|
|
|
#include <shapes/loop_icosahedron.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_icosahedron, "loop_icosahedron", kLoop));
|
|
|
|
#include <shapes/loop_saddle_edgecorner.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_saddle_edgecorner, "loop_saddle_edgecorner", kLoop));
|
|
|
|
#include <shapes/loop_saddle_edgeonly.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_saddle_edgeonly, "loop_saddle_edgeonly", kLoop));
|
|
|
|
#include <shapes/loop_triangle_edgecorner.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_triangle_edgecorner, "loop_triangle_edgecorner", kLoop));
|
|
|
|
#include <shapes/loop_triangle_edgeonly.h>
|
|
g_defaultShapes.push_back(SimpleShape(loop_triangle_edgeonly, "loop_triangle_edgeonly", kLoop));
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
calcNormals(OsdHbrMesh * mesh, std::vector<float> const & pos, std::vector<float> & result ) {
|
|
|
|
// calc normal vectors
|
|
int nverts = (int)pos.size()/3;
|
|
|
|
int nfaces = mesh->GetNumCoarseFaces();
|
|
for (int i = 0; i < nfaces; ++i) {
|
|
|
|
OsdHbrFace * f = mesh->GetFace(i);
|
|
|
|
float const * p0 = &pos[f->GetVertex(0)->GetID()*3],
|
|
* p1 = &pos[f->GetVertex(1)->GetID()*3],
|
|
* p2 = &pos[f->GetVertex(2)->GetID()*3];
|
|
|
|
float n[3];
|
|
cross( n, p0, p1, p2 );
|
|
|
|
for (int j = 0; j < f->GetNumVertices(); j++) {
|
|
int idx = f->GetVertex(j)->GetID() * 3;
|
|
result[idx ] += n[0];
|
|
result[idx+1] += n[1];
|
|
result[idx+2] += n[2];
|
|
}
|
|
}
|
|
for (int i = 0; i < nverts; ++i)
|
|
normalize( &result[i*3] );
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
updateGeom() {
|
|
|
|
int nverts = (int)g_orgPositions.size() / 3;
|
|
|
|
std::vector<float> vertex, varying;
|
|
vertex.reserve(nverts*3);
|
|
if (g_displayStyle == kVaryingColor)
|
|
varying.reserve(nverts*3);
|
|
|
|
const float *p = &g_orgPositions[0];
|
|
|
|
float r = sin(g_frame*0.001f) * g_moveScale;
|
|
for (int i = 0; i < nverts; ++i) {
|
|
//float move = 0.05f*cosf(p[0]*20+g_frame*0.01f);
|
|
float ct = cos(p[2] * r);
|
|
float st = sin(p[2] * r);
|
|
g_positions[i*3+0] = p[0]*ct + p[1]*st;
|
|
g_positions[i*3+1] = -p[0]*st + p[1]*ct;
|
|
g_positions[i*3+2] = p[2];
|
|
|
|
p += 3;
|
|
}
|
|
|
|
p = &g_orgPositions[0];
|
|
const float *pp = &g_positions[0];
|
|
for (int i = 0; i < nverts; ++i) {
|
|
vertex.push_back(pp[0]);
|
|
vertex.push_back(pp[1]);
|
|
vertex.push_back(pp[2]);
|
|
if (g_displayStyle == kVaryingColor) {
|
|
varying.push_back(p[2]);
|
|
varying.push_back(p[1]);
|
|
varying.push_back(p[0]);
|
|
p += 3;
|
|
}
|
|
pp += 3;
|
|
}
|
|
|
|
g_mesh->UpdateVertexBuffer(&vertex[0], 0, nverts);
|
|
|
|
if (g_displayStyle == kVaryingColor)
|
|
g_mesh->UpdateVaryingBuffer(&varying[0], 0, nverts);
|
|
|
|
Stopwatch s;
|
|
s.Start();
|
|
|
|
g_mesh->Refine();
|
|
|
|
s.Stop();
|
|
g_cpuTime = float(s.GetElapsed() * 1000.0f);
|
|
s.Start();
|
|
|
|
g_mesh->Synchronize();
|
|
|
|
s.Stop();
|
|
g_gpuTime = float(s.GetElapsed() * 1000.0f);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static const char *
|
|
getKernelName(int kernel) {
|
|
|
|
if (kernel == kCPU)
|
|
return "CPU";
|
|
else if (kernel == kOPENMP)
|
|
return "OpenMP";
|
|
else if (kernel == kGCD)
|
|
return "GCD";
|
|
else if (kernel == kCUDA)
|
|
return "Cuda";
|
|
else if (kernel == kGLSL)
|
|
return "GLSL TransformFeedback";
|
|
else if (kernel == kGLSLCompute)
|
|
return "GLSL Compute";
|
|
else if (kernel == kCL)
|
|
return "OpenCL";
|
|
return "Unknown";
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
createOsdMesh( const std::string &shape, int level, int kernel, Scheme scheme=kCatmark ) {
|
|
|
|
checkGLErrors("create osd enter");
|
|
// generate Hbr representation from "obj" description
|
|
OsdHbrMesh * hmesh = simpleHbr<OpenSubdiv::OsdVertex>(shape.c_str(), scheme, g_orgPositions);
|
|
|
|
g_normals.resize(g_orgPositions.size(),0.0f);
|
|
g_positions.resize(g_orgPositions.size(),0.0f);
|
|
calcNormals( hmesh, g_orgPositions, g_normals );
|
|
|
|
// save coarse topology (used for coarse mesh drawing)
|
|
g_coarseEdges.clear();
|
|
g_coarseEdgeSharpness.clear();
|
|
g_coarseVertexSharpness.clear();
|
|
int nf = hmesh->GetNumFaces();
|
|
for(int i=0; i<nf; ++i) {
|
|
OsdHbrFace *face = hmesh->GetFace(i);
|
|
int nv = face->GetNumVertices();
|
|
for(int j=0; j<nv; ++j) {
|
|
g_coarseEdges.push_back(face->GetVertex(j)->GetID());
|
|
g_coarseEdges.push_back(face->GetVertex((j+1)%nv)->GetID());
|
|
g_coarseEdgeSharpness.push_back(face->GetEdge(j)->GetSharpness());
|
|
}
|
|
}
|
|
int nv = hmesh->GetNumVertices();
|
|
for(int i=0; i<nv; ++i) {
|
|
g_coarseVertexSharpness.push_back(hmesh->GetVertex(i)->GetSharpness());
|
|
}
|
|
|
|
delete g_mesh;
|
|
g_mesh = NULL;
|
|
|
|
g_scheme = scheme;
|
|
|
|
// Adaptive refinement currently supported only for catmull-clark scheme
|
|
bool doAdaptive = (g_adaptive!=0 and g_scheme==kCatmark);
|
|
|
|
OpenSubdiv::OsdMeshBitset bits;
|
|
bits.set(OpenSubdiv::MeshAdaptive, doAdaptive);
|
|
|
|
int numVertexElements = 3;
|
|
int numVaryingElements = (g_displayStyle == kVaryingColor) ? 3 : 0;
|
|
|
|
if (kernel == kCPU) {
|
|
if (not g_cpuComputeController) {
|
|
g_cpuComputeController = new OpenSubdiv::OsdCpuComputeController();
|
|
}
|
|
g_mesh = new OpenSubdiv::OsdMesh<OpenSubdiv::OsdCpuGLVertexBuffer,
|
|
OpenSubdiv::OsdCpuComputeController,
|
|
OpenSubdiv::OsdGLDrawContext>(
|
|
g_cpuComputeController,
|
|
hmesh,
|
|
numVertexElements,
|
|
numVaryingElements,
|
|
level, bits);
|
|
#ifdef OPENSUBDIV_HAS_OPENMP
|
|
} else if (kernel == kOPENMP) {
|
|
if (not g_ompComputeController) {
|
|
g_ompComputeController = new OpenSubdiv::OsdOmpComputeController();
|
|
}
|
|
g_mesh = new OpenSubdiv::OsdMesh<OpenSubdiv::OsdCpuGLVertexBuffer,
|
|
OpenSubdiv::OsdOmpComputeController,
|
|
OpenSubdiv::OsdGLDrawContext>(
|
|
g_ompComputeController,
|
|
hmesh,
|
|
numVertexElements,
|
|
numVaryingElements,
|
|
level, bits);
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_GCD
|
|
} else if (kernel == kGCD) {
|
|
if (not g_gcdComputeController) {
|
|
g_gcdComputeController = new OpenSubdiv::OsdGcdComputeController();
|
|
}
|
|
g_mesh = new OpenSubdiv::OsdMesh<OpenSubdiv::OsdCpuGLVertexBuffer,
|
|
OpenSubdiv::OsdGcdComputeController,
|
|
OpenSubdiv::OsdGLDrawContext>(
|
|
g_gcdComputeController,
|
|
hmesh,
|
|
numVertexElements,
|
|
numVaryingElements,
|
|
level, bits);
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_OPENCL
|
|
} else if(kernel == kCL) {
|
|
if (not g_clComputeController) {
|
|
g_clComputeController = new OpenSubdiv::OsdCLComputeController(g_clContext, g_clQueue);
|
|
}
|
|
g_mesh = new OpenSubdiv::OsdMesh<OpenSubdiv::OsdCLGLVertexBuffer,
|
|
OpenSubdiv::OsdCLComputeController,
|
|
OpenSubdiv::OsdGLDrawContext>(
|
|
g_clComputeController,
|
|
hmesh,
|
|
numVertexElements,
|
|
numVaryingElements,
|
|
level, bits, g_clContext, g_clQueue);
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_CUDA
|
|
} else if(kernel == kCUDA) {
|
|
if (not g_cudaComputeController) {
|
|
g_cudaComputeController = new OpenSubdiv::OsdCudaComputeController();
|
|
}
|
|
g_mesh = new OpenSubdiv::OsdMesh<OpenSubdiv::OsdCudaGLVertexBuffer,
|
|
OpenSubdiv::OsdCudaComputeController,
|
|
OpenSubdiv::OsdGLDrawContext>(
|
|
g_cudaComputeController,
|
|
hmesh,
|
|
numVertexElements,
|
|
numVaryingElements,
|
|
level, bits);
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK
|
|
} else if(kernel == kGLSL) {
|
|
if (not g_glslTransformFeedbackComputeController) {
|
|
g_glslTransformFeedbackComputeController = new OpenSubdiv::OsdGLSLTransformFeedbackComputeController();
|
|
}
|
|
g_mesh = new OpenSubdiv::OsdMesh<OpenSubdiv::OsdGLVertexBuffer,
|
|
OpenSubdiv::OsdGLSLTransformFeedbackComputeController,
|
|
OpenSubdiv::OsdGLDrawContext>(
|
|
g_glslTransformFeedbackComputeController,
|
|
hmesh,
|
|
numVertexElements,
|
|
numVaryingElements,
|
|
level, bits);
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_GLSL_COMPUTE
|
|
} else if(kernel == kGLSLCompute) {
|
|
if (not g_glslComputeController) {
|
|
g_glslComputeController = new OpenSubdiv::OsdGLSLComputeController();
|
|
}
|
|
g_mesh = new OpenSubdiv::OsdMesh<OpenSubdiv::OsdGLVertexBuffer,
|
|
OpenSubdiv::OsdGLSLComputeController,
|
|
OpenSubdiv::OsdGLDrawContext>(
|
|
g_glslComputeController,
|
|
hmesh,
|
|
numVertexElements,
|
|
numVaryingElements,
|
|
level, bits);
|
|
#endif
|
|
} else {
|
|
printf("Unsupported kernel %s\n", getKernelName(kernel));
|
|
}
|
|
|
|
// Hbr mesh can be deleted
|
|
delete hmesh;
|
|
|
|
// compute model bounding
|
|
float min[3] = { FLT_MAX, FLT_MAX, FLT_MAX};
|
|
float max[3] = {-FLT_MAX, -FLT_MAX, -FLT_MAX};
|
|
for (size_t i=0; i <g_orgPositions.size()/3; ++i) {
|
|
for(int j=0; j<3; ++j) {
|
|
float v = g_orgPositions[i*3+j];
|
|
min[j] = std::min(min[j], v);
|
|
max[j] = std::max(max[j], v);
|
|
}
|
|
}
|
|
for (int j=0; j<3; ++j) {
|
|
g_center[j] = (min[j] + max[j]) * 0.5f;
|
|
g_size += (max[j]-min[j])*(max[j]-min[j]);
|
|
}
|
|
g_size = sqrtf(g_size);
|
|
|
|
g_tessLevelMin = 1;
|
|
|
|
g_tessLevel = std::max(g_tessLevel,g_tessLevelMin);
|
|
|
|
updateGeom();
|
|
|
|
// -------- VAO
|
|
glBindVertexArray(g_vao);
|
|
|
|
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_mesh->GetDrawContext()->GetPatchIndexBuffer());
|
|
glBindBuffer(GL_ARRAY_BUFFER, g_mesh->BindVertexBuffer());
|
|
|
|
glEnableVertexAttribArray(0);
|
|
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 3, 0);
|
|
|
|
if (g_displayStyle == kVaryingColor) {
|
|
glBindBuffer(GL_ARRAY_BUFFER, g_mesh->BindVaryingBuffer());
|
|
glEnableVertexAttribArray(1);
|
|
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 3, 0);
|
|
} else {
|
|
glDisableVertexAttribArray(1);
|
|
}
|
|
|
|
glBindBuffer(GL_ARRAY_BUFFER, 0);
|
|
glBindVertexArray(0);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
fitFrame() {
|
|
|
|
g_pan[0] = g_pan[1] = 0;
|
|
g_dolly = g_size;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static inline void
|
|
setSharpnessColor(float s, float *r, float *g, float *b)
|
|
{
|
|
// 0.0 2.0 4.0
|
|
// green --- yellow --- red
|
|
*r = std::min(1.0f, s * 0.5f);
|
|
*g = std::min(1.0f, 2.0f - s*0.5f);
|
|
*b = 0;
|
|
}
|
|
|
|
static void
|
|
drawCageEdges() {
|
|
|
|
glUseProgram(g_defaultProgram.program);
|
|
glUniformMatrix4fv(g_defaultProgram.uniformModelViewProjectionMatrix,
|
|
1, GL_FALSE, g_transformData.ModelViewProjectionMatrix);
|
|
|
|
std::vector<float> vbo;
|
|
vbo.reserve(g_coarseEdges.size() * 6);
|
|
float r, g, b;
|
|
for (int i = 0; i < (int)g_coarseEdges.size(); i+=2) {
|
|
setSharpnessColor(g_coarseEdgeSharpness[i/2], &r, &g, &b);
|
|
for (int j = 0; j < 2; ++j) {
|
|
vbo.push_back(g_positions[g_coarseEdges[i+j]*3]);
|
|
vbo.push_back(g_positions[g_coarseEdges[i+j]*3+1]);
|
|
vbo.push_back(g_positions[g_coarseEdges[i+j]*3+2]);
|
|
vbo.push_back(r);
|
|
vbo.push_back(g);
|
|
vbo.push_back(b);
|
|
}
|
|
}
|
|
|
|
glBindVertexArray(g_cageEdgeVAO);
|
|
|
|
glBindBuffer(GL_ARRAY_BUFFER, g_cageEdgeVBO);
|
|
glBufferData(GL_ARRAY_BUFFER, (int)vbo.size() * sizeof(float), &vbo[0],
|
|
GL_STATIC_DRAW);
|
|
|
|
glEnableVertexAttribArray(g_defaultProgram.attrPosition);
|
|
glEnableVertexAttribArray(g_defaultProgram.attrColor);
|
|
glVertexAttribPointer(g_defaultProgram.attrPosition,
|
|
3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 6, 0);
|
|
glVertexAttribPointer(g_defaultProgram.attrColor,
|
|
3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 6, (void*)12);
|
|
|
|
glDrawArrays(GL_LINES, 0, (int)g_coarseEdges.size());
|
|
|
|
glBindVertexArray(0);
|
|
glUseProgram(0);
|
|
}
|
|
|
|
static void
|
|
drawCageVertices() {
|
|
|
|
glUseProgram(g_defaultProgram.program);
|
|
glUniformMatrix4fv(g_defaultProgram.uniformModelViewProjectionMatrix,
|
|
1, GL_FALSE, g_transformData.ModelViewProjectionMatrix);
|
|
|
|
int numPoints = (int)g_positions.size()/3;
|
|
std::vector<float> vbo;
|
|
vbo.reserve(numPoints*6);
|
|
float r, g, b;
|
|
for (int i = 0; i < numPoints; ++i) {
|
|
setSharpnessColor(g_coarseVertexSharpness[i], &r, &g, &b);
|
|
vbo.push_back(g_positions[i*3+0]);
|
|
vbo.push_back(g_positions[i*3+1]);
|
|
vbo.push_back(g_positions[i*3+2]);
|
|
vbo.push_back(r);
|
|
vbo.push_back(g);
|
|
vbo.push_back(b);
|
|
}
|
|
|
|
glBindVertexArray(g_cageVertexVAO);
|
|
|
|
glBindBuffer(GL_ARRAY_BUFFER, g_cageVertexVBO);
|
|
glBufferData(GL_ARRAY_BUFFER, (int)vbo.size() * sizeof(float), &vbo[0],
|
|
GL_STATIC_DRAW);
|
|
|
|
glEnableVertexAttribArray(g_defaultProgram.attrPosition);
|
|
glEnableVertexAttribArray(g_defaultProgram.attrColor);
|
|
glVertexAttribPointer(g_defaultProgram.attrPosition,
|
|
3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 6, 0);
|
|
glVertexAttribPointer(g_defaultProgram.attrColor,
|
|
3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 6, (void*)12);
|
|
|
|
glPointSize(10.0f);
|
|
glDrawArrays(GL_POINTS, 0, numPoints);
|
|
glPointSize(1.0f);
|
|
|
|
glBindVertexArray(0);
|
|
glUseProgram(0);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
union Effect {
|
|
Effect(int displayStyle_, int screenSpaceTess_, int fractionalSpacing_, int patchCull_) : value(0) {
|
|
displayStyle = displayStyle_;
|
|
screenSpaceTess = screenSpaceTess_;
|
|
fractionalSpacing = fractionalSpacing_;
|
|
patchCull = patchCull_;
|
|
}
|
|
|
|
struct {
|
|
int displayStyle:3;
|
|
int screenSpaceTess:1;
|
|
int fractionalSpacing:1;
|
|
int patchCull:1;
|
|
};
|
|
int value;
|
|
|
|
bool operator < (const Effect &e) const {
|
|
return value < e.value;
|
|
}
|
|
};
|
|
|
|
typedef std::pair<OpenSubdiv::OsdDrawContext::PatchDescriptor, Effect> EffectDesc;
|
|
|
|
class EffectDrawRegistry : public OpenSubdiv::OsdGLDrawRegistry<EffectDesc> {
|
|
|
|
protected:
|
|
virtual ConfigType *
|
|
_CreateDrawConfig(DescType const & desc, SourceConfigType const * sconfig);
|
|
|
|
virtual SourceConfigType *
|
|
_CreateDrawSourceConfig(DescType const & desc);
|
|
};
|
|
|
|
EffectDrawRegistry::SourceConfigType *
|
|
EffectDrawRegistry::_CreateDrawSourceConfig(DescType const & desc)
|
|
{
|
|
Effect effect = desc.second;
|
|
|
|
SourceConfigType * sconfig =
|
|
BaseRegistry::_CreateDrawSourceConfig(desc.first);
|
|
|
|
assert(sconfig);
|
|
|
|
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
|
|
const char *glslVersion = "#version 400\n";
|
|
#else
|
|
const char *glslVersion = "#version 330\n";
|
|
#endif
|
|
|
|
if (desc.first.GetType() == OpenSubdiv::FarPatchTables::QUADS or
|
|
desc.first.GetType() == OpenSubdiv::FarPatchTables::TRIANGLES) {
|
|
sconfig->vertexShader.source = shaderSource;
|
|
sconfig->vertexShader.version = glslVersion;
|
|
sconfig->vertexShader.AddDefine("VERTEX_SHADER");
|
|
} else {
|
|
sconfig->geometryShader.AddDefine("SMOOTH_NORMALS");
|
|
}
|
|
|
|
sconfig->geometryShader.source = shaderSource;
|
|
sconfig->geometryShader.version = glslVersion;
|
|
sconfig->geometryShader.AddDefine("GEOMETRY_SHADER");
|
|
|
|
sconfig->fragmentShader.source = shaderSource;
|
|
sconfig->fragmentShader.version = glslVersion;
|
|
sconfig->fragmentShader.AddDefine("FRAGMENT_SHADER");
|
|
|
|
if (desc.first.GetType() == OpenSubdiv::FarPatchTables::QUADS) {
|
|
// uniform catmark, bilinear
|
|
sconfig->geometryShader.AddDefine("PRIM_QUAD");
|
|
sconfig->fragmentShader.AddDefine("PRIM_QUAD");
|
|
} else if (desc.first.GetType() == OpenSubdiv::FarPatchTables::TRIANGLES) {
|
|
// uniform loop
|
|
sconfig->geometryShader.AddDefine("PRIM_TRI");
|
|
sconfig->fragmentShader.AddDefine("PRIM_TRI");
|
|
} else {
|
|
// adaptive
|
|
sconfig->vertexShader.source = shaderSource + sconfig->vertexShader.source;
|
|
sconfig->tessControlShader.source = shaderSource + sconfig->tessControlShader.source;
|
|
sconfig->tessEvalShader.source = shaderSource + sconfig->tessEvalShader.source;
|
|
|
|
sconfig->geometryShader.AddDefine("PRIM_TRI");
|
|
sconfig->fragmentShader.AddDefine("PRIM_TRI");
|
|
}
|
|
|
|
if (effect.screenSpaceTess) {
|
|
sconfig->commonShader.AddDefine("OSD_ENABLE_SCREENSPACE_TESSELLATION");
|
|
}
|
|
if (effect.fractionalSpacing) {
|
|
sconfig->commonShader.AddDefine("OSD_FRACTIONAL_ODD_SPACING");
|
|
}
|
|
if (effect.patchCull) {
|
|
sconfig->commonShader.AddDefine("OSD_ENABLE_PATCH_CULL");
|
|
}
|
|
|
|
|
|
switch (effect.displayStyle) {
|
|
case kWire:
|
|
sconfig->commonShader.AddDefine("GEOMETRY_OUT_WIRE");
|
|
break;
|
|
case kWireShaded:
|
|
sconfig->commonShader.AddDefine("GEOMETRY_OUT_LINE");
|
|
break;
|
|
case kShaded:
|
|
sconfig->commonShader.AddDefine("GEOMETRY_OUT_FILL");
|
|
break;
|
|
case kVaryingColor:
|
|
sconfig->commonShader.AddDefine("VARYING_COLOR");
|
|
sconfig->commonShader.AddDefine("GEOMETRY_OUT_FILL");
|
|
break;
|
|
}
|
|
|
|
return sconfig;
|
|
}
|
|
|
|
EffectDrawRegistry::ConfigType *
|
|
EffectDrawRegistry::_CreateDrawConfig(
|
|
DescType const & desc,
|
|
SourceConfigType const * sconfig)
|
|
{
|
|
ConfigType * config = BaseRegistry::_CreateDrawConfig(desc.first, sconfig);
|
|
assert(config);
|
|
|
|
GLuint uboIndex;
|
|
|
|
// XXXdyu can use layout(binding=) with GLSL 4.20 and beyond
|
|
g_transformBinding = 0;
|
|
uboIndex = glGetUniformBlockIndex(config->program, "Transform");
|
|
if (uboIndex != GL_INVALID_INDEX)
|
|
glUniformBlockBinding(config->program, uboIndex, g_transformBinding);
|
|
|
|
g_tessellationBinding = 1;
|
|
uboIndex = glGetUniformBlockIndex(config->program, "Tessellation");
|
|
if (uboIndex != GL_INVALID_INDEX)
|
|
glUniformBlockBinding(config->program, uboIndex, g_tessellationBinding);
|
|
|
|
g_lightingBinding = 2;
|
|
uboIndex = glGetUniformBlockIndex(config->program, "Lighting");
|
|
if (uboIndex != GL_INVALID_INDEX)
|
|
glUniformBlockBinding(config->program, uboIndex, g_lightingBinding);
|
|
|
|
GLint loc;
|
|
#if not defined(GL_ARB_separate_shader_objects) || defined(GL_VERSION_4_1)
|
|
glUseProgram(config->program);
|
|
if ((loc = glGetUniformLocation(config->program, "g_VertexBuffer")) != -1) {
|
|
glUniform1i(loc, 0); // GL_TEXTURE0
|
|
}
|
|
if ((loc = glGetUniformLocation(config->program, "g_ValenceBuffer")) != -1) {
|
|
glUniform1i(loc, 1); // GL_TEXTURE1
|
|
}
|
|
if ((loc = glGetUniformLocation(config->program, "g_QuadOffsetBuffer")) != -1) {
|
|
glUniform1i(loc, 2); // GL_TEXTURE2
|
|
}
|
|
if ((loc = glGetUniformLocation(config->program, "g_ptexIndicesBuffer")) != -1) {
|
|
glUniform1i(loc, 3); // GL_TEXTURE3
|
|
}
|
|
#else
|
|
if ((loc = glGetUniformLocation(config->program, "g_VertexBuffer")) != -1) {
|
|
glProgramUniform1i(config->program, loc, 0); // GL_TEXTURE0
|
|
}
|
|
if ((loc = glGetUniformLocation(config->program, "g_ValenceBuffer")) != -1) {
|
|
glProgramUniform1i(config->program, loc, 1); // GL_TEXTURE1
|
|
}
|
|
if ((loc = glGetUniformLocation(config->program, "g_QuadOffsetBuffer")) != -1) {
|
|
glProgramUniform1i(config->program, loc, 2); // GL_TEXTURE2
|
|
}
|
|
if ((loc = glGetUniformLocation(config->program, "g_ptexIndicesBuffer")) != -1) {
|
|
glProgramUniform1i(config->program, loc, 3); // GL_TEXTURE3
|
|
}
|
|
#endif
|
|
|
|
return config;
|
|
}
|
|
|
|
EffectDrawRegistry effectRegistry;
|
|
|
|
static Effect
|
|
GetEffect()
|
|
{
|
|
return Effect(g_displayStyle, g_screenSpaceTess, g_fractionalSpacing, g_patchCull);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static GLuint
|
|
bindProgram(Effect effect, OpenSubdiv::OsdDrawContext::PatchArray const & patch)
|
|
{
|
|
EffectDesc effectDesc(patch.GetDescriptor(), effect);
|
|
EffectDrawRegistry::ConfigType *
|
|
config = effectRegistry.GetDrawConfig(effectDesc);
|
|
|
|
GLuint program = config->program;
|
|
|
|
glUseProgram(program);
|
|
|
|
if (! g_transformUB) {
|
|
glGenBuffers(1, &g_transformUB);
|
|
glBindBuffer(GL_UNIFORM_BUFFER, g_transformUB);
|
|
glBufferData(GL_UNIFORM_BUFFER,
|
|
sizeof(g_transformData), NULL, GL_STATIC_DRAW);
|
|
};
|
|
glBindBuffer(GL_UNIFORM_BUFFER, g_transformUB);
|
|
glBufferSubData(GL_UNIFORM_BUFFER,
|
|
0, sizeof(g_transformData), &g_transformData);
|
|
glBindBuffer(GL_UNIFORM_BUFFER, 0);
|
|
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, g_transformBinding, g_transformUB);
|
|
|
|
// Update and bind tessellation state
|
|
struct Tessellation {
|
|
float TessLevel;
|
|
} tessellationData;
|
|
|
|
tessellationData.TessLevel = static_cast<float>(1 << g_tessLevel);
|
|
|
|
if (! g_tessellationUB) {
|
|
glGenBuffers(1, &g_tessellationUB);
|
|
glBindBuffer(GL_UNIFORM_BUFFER, g_tessellationUB);
|
|
glBufferData(GL_UNIFORM_BUFFER,
|
|
sizeof(tessellationData), NULL, GL_STATIC_DRAW);
|
|
};
|
|
glBindBuffer(GL_UNIFORM_BUFFER, g_tessellationUB);
|
|
glBufferSubData(GL_UNIFORM_BUFFER,
|
|
0, sizeof(tessellationData), &tessellationData);
|
|
glBindBuffer(GL_UNIFORM_BUFFER, 0);
|
|
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, g_tessellationBinding, g_tessellationUB);
|
|
|
|
// Update and bind lighting state
|
|
struct Lighting {
|
|
struct Light {
|
|
float position[4];
|
|
float ambient[4];
|
|
float diffuse[4];
|
|
float specular[4];
|
|
} lightSource[2];
|
|
} lightingData = {
|
|
{{ { 0.5, 0.2f, 1.0f, 0.0f },
|
|
{ 0.1f, 0.1f, 0.1f, 1.0f },
|
|
{ 0.7f, 0.7f, 0.7f, 1.0f },
|
|
{ 0.8f, 0.8f, 0.8f, 1.0f } },
|
|
|
|
{ { -0.8f, 0.4f, -1.0f, 0.0f },
|
|
{ 0.0f, 0.0f, 0.0f, 1.0f },
|
|
{ 0.5f, 0.5f, 0.5f, 1.0f },
|
|
{ 0.8f, 0.8f, 0.8f, 1.0f } }}
|
|
};
|
|
if (! g_lightingUB) {
|
|
glGenBuffers(1, &g_lightingUB);
|
|
glBindBuffer(GL_UNIFORM_BUFFER, g_lightingUB);
|
|
glBufferData(GL_UNIFORM_BUFFER,
|
|
sizeof(lightingData), NULL, GL_STATIC_DRAW);
|
|
};
|
|
glBindBuffer(GL_UNIFORM_BUFFER, g_lightingUB);
|
|
glBufferSubData(GL_UNIFORM_BUFFER,
|
|
0, sizeof(lightingData), &lightingData);
|
|
glBindBuffer(GL_UNIFORM_BUFFER, 0);
|
|
|
|
glBindBufferBase(GL_UNIFORM_BUFFER, g_lightingBinding, g_lightingUB);
|
|
|
|
if (g_mesh->GetDrawContext()->GetVertexTextureBuffer()) {
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_BUFFER,
|
|
g_mesh->GetDrawContext()->GetVertexTextureBuffer());
|
|
}
|
|
if (g_mesh->GetDrawContext()->GetVertexValenceTextureBuffer()) {
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glBindTexture(GL_TEXTURE_BUFFER,
|
|
g_mesh->GetDrawContext()->GetVertexValenceTextureBuffer());
|
|
}
|
|
if (g_mesh->GetDrawContext()->GetQuadOffsetsTextureBuffer()) {
|
|
glActiveTexture(GL_TEXTURE2);
|
|
glBindTexture(GL_TEXTURE_BUFFER,
|
|
g_mesh->GetDrawContext()->GetQuadOffsetsTextureBuffer());
|
|
}
|
|
if (g_mesh->GetDrawContext()->GetPatchParamTextureBuffer()) {
|
|
glActiveTexture(GL_TEXTURE3);
|
|
glBindTexture(GL_TEXTURE_BUFFER,
|
|
g_mesh->GetDrawContext()->GetPatchParamTextureBuffer());
|
|
}
|
|
glActiveTexture(GL_TEXTURE0);
|
|
|
|
return program;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
display() {
|
|
|
|
Stopwatch s;
|
|
s.Start();
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
glViewport(0, 0, g_width, g_height);
|
|
|
|
// prepare view matrix
|
|
double aspect = g_width/(double)g_height;
|
|
identity(g_transformData.ModelViewMatrix);
|
|
translate(g_transformData.ModelViewMatrix, -g_pan[0], -g_pan[1], -g_dolly);
|
|
rotate(g_transformData.ModelViewMatrix, g_rotate[1], 1, 0, 0);
|
|
rotate(g_transformData.ModelViewMatrix, g_rotate[0], 0, 1, 0);
|
|
rotate(g_transformData.ModelViewMatrix, -90, 1, 0, 0);
|
|
translate(g_transformData.ModelViewMatrix,
|
|
-g_center[0], -g_center[1], -g_center[2]);
|
|
perspective(g_transformData.ProjectionMatrix,
|
|
45.0f, (float)aspect, 0.01f, 500.0f);
|
|
multMatrix(g_transformData.ModelViewProjectionMatrix,
|
|
g_transformData.ModelViewMatrix,
|
|
g_transformData.ProjectionMatrix);
|
|
|
|
// make sure that the vertex buffer is interoped back as a GL resources.
|
|
g_mesh->BindVertexBuffer();
|
|
|
|
if (g_displayStyle == kVaryingColor)
|
|
g_mesh->BindVaryingBuffer();
|
|
|
|
glBindVertexArray(g_vao);
|
|
|
|
OpenSubdiv::OsdDrawContext::PatchArrayVector const & patches = g_mesh->GetDrawContext()->patchArrays;
|
|
|
|
// patch drawing
|
|
int patchCount[11][6][4]; // [Type][Pattern][Rotation] (see far/patchTables.h)
|
|
memset(patchCount, 0, sizeof(patchCount));
|
|
|
|
// primitive counting
|
|
glBeginQuery(GL_PRIMITIVES_GENERATED, g_primQuery);
|
|
|
|
for (int i=0; i<(int)patches.size(); ++i) {
|
|
OpenSubdiv::OsdDrawContext::PatchArray const & patch = patches[i];
|
|
|
|
OpenSubdiv::OsdDrawContext::PatchDescriptor desc = patch.GetDescriptor();
|
|
OpenSubdiv::FarPatchTables::Type patchType = desc.GetType();
|
|
int patchPattern = desc.GetPattern();
|
|
int patchRotation = desc.GetRotation();
|
|
int subPatch = desc.GetSubPatch();
|
|
|
|
if (subPatch == 0) {
|
|
patchCount[patchType][patchPattern][patchRotation] += patch.GetNumPatches();
|
|
}
|
|
|
|
GLenum primType;
|
|
|
|
switch(patchType) {
|
|
case OpenSubdiv::FarPatchTables::QUADS:
|
|
primType = GL_LINES_ADJACENCY;
|
|
break;
|
|
case OpenSubdiv::FarPatchTables::TRIANGLES:
|
|
primType = GL_TRIANGLES;
|
|
break;
|
|
default:
|
|
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
|
|
primType = GL_PATCHES;
|
|
glPatchParameteri(GL_PATCH_VERTICES, desc.GetNumControlVertices());
|
|
#else
|
|
primType = GL_POINTS;
|
|
#endif
|
|
}
|
|
|
|
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
|
|
GLuint program = bindProgram(GetEffect(), patch);
|
|
|
|
GLuint diffuseColor = glGetUniformLocation(program, "diffuseColor");
|
|
|
|
if (g_displayPatchColor and primType == GL_PATCHES) {
|
|
float const * color = getAdaptivePatchColor( desc );
|
|
glProgramUniform4f(program, diffuseColor, color[0], color[1], color[2], color[3]);
|
|
} else {
|
|
glProgramUniform4f(program, diffuseColor, 0.4f, 0.4f, 0.8f, 1);
|
|
}
|
|
|
|
GLuint uniformGregoryQuadOffset = glGetUniformLocation(program, "GregoryQuadOffsetBase");
|
|
GLuint uniformLevelBase = glGetUniformLocation(program, "LevelBase");
|
|
glProgramUniform1i(program, uniformGregoryQuadOffset, patch.GetQuadOffsetIndex());
|
|
glProgramUniform1i(program, uniformLevelBase, patch.GetPatchIndex());
|
|
#else
|
|
bindProgram(GetEffect(), patch);
|
|
#endif
|
|
|
|
if (g_displayStyle == kWire) {
|
|
glDisable(GL_CULL_FACE);
|
|
}
|
|
|
|
glDrawElements(primType, patch.GetNumIndices(), GL_UNSIGNED_INT,
|
|
(void *)(patch.GetVertIndex() * sizeof(unsigned int)));
|
|
if (g_displayStyle == kWire) {
|
|
glEnable(GL_CULL_FACE);
|
|
}
|
|
}
|
|
|
|
glEndQuery(GL_PRIMITIVES_GENERATED);
|
|
|
|
GLuint numPrimsGenerated = 0;
|
|
glGetQueryObjectuiv(g_primQuery, GL_QUERY_RESULT, &numPrimsGenerated);
|
|
|
|
glBindVertexArray(0);
|
|
|
|
glUseProgram(0);
|
|
|
|
if (g_drawCageEdges)
|
|
drawCageEdges();
|
|
|
|
if (g_drawCageVertices)
|
|
drawCageVertices();
|
|
|
|
s.Stop();
|
|
float drawCpuTime = float(s.GetElapsed() * 1000.0f);
|
|
s.Start();
|
|
glFinish();
|
|
s.Stop();
|
|
float drawGpuTime = float(s.GetElapsed() * 1000.0f);
|
|
|
|
if (g_hud.IsVisible()) {
|
|
g_fpsTimer.Stop();
|
|
double fps = 1.0/g_fpsTimer.GetElapsed();
|
|
g_fpsTimer.Start();
|
|
|
|
int x = -280;
|
|
g_hud.DrawString(x, -360, "NonPatch : %d",
|
|
patchCount[OpenSubdiv::FarPatchTables::QUADS][0][0]);
|
|
g_hud.DrawString(x, -340, "Regular : %d",
|
|
patchCount[OpenSubdiv::FarPatchTables::REGULAR][0][0]);
|
|
g_hud.DrawString(x, -320, "Boundary : %d",
|
|
patchCount[OpenSubdiv::FarPatchTables::BOUNDARY][0][0]);
|
|
g_hud.DrawString(x, -300, "Corner : %d",
|
|
patchCount[OpenSubdiv::FarPatchTables::CORNER][0][0]);
|
|
g_hud.DrawString(x, -280, "Gregory : %d",
|
|
patchCount[OpenSubdiv::FarPatchTables::GREGORY][0][0]);
|
|
g_hud.DrawString(x, -260, "Boundary Gregory : %d",
|
|
patchCount[OpenSubdiv::FarPatchTables::GREGORY_BOUNDARY][0][0]);
|
|
g_hud.DrawString(x, -240, "Trans. Regular : %d %d %d %d %d",
|
|
patchCount[OpenSubdiv::FarPatchTables::REGULAR][OpenSubdiv::FarPatchTables::PATTERN0][0],
|
|
patchCount[OpenSubdiv::FarPatchTables::REGULAR][OpenSubdiv::FarPatchTables::PATTERN1][0],
|
|
patchCount[OpenSubdiv::FarPatchTables::REGULAR][OpenSubdiv::FarPatchTables::PATTERN2][0],
|
|
patchCount[OpenSubdiv::FarPatchTables::REGULAR][OpenSubdiv::FarPatchTables::PATTERN3][0],
|
|
patchCount[OpenSubdiv::FarPatchTables::REGULAR][OpenSubdiv::FarPatchTables::PATTERN4][0]);
|
|
for (int i=0; i < 5; i++)
|
|
g_hud.DrawString(x, -220+i*20, "Trans. Boundary%d : %d %d %d %d", i,
|
|
patchCount[OpenSubdiv::FarPatchTables::BOUNDARY][i+1][0],
|
|
patchCount[OpenSubdiv::FarPatchTables::BOUNDARY][i+1][1],
|
|
patchCount[OpenSubdiv::FarPatchTables::BOUNDARY][i+1][2],
|
|
patchCount[OpenSubdiv::FarPatchTables::BOUNDARY][i+1][3]);
|
|
for (int i=0; i < 5; i++)
|
|
g_hud.DrawString(x, -100+i*20, "Trans. Corner%d : %d %d %d %d", i,
|
|
patchCount[OpenSubdiv::FarPatchTables::CORNER][i+1][0],
|
|
patchCount[OpenSubdiv::FarPatchTables::CORNER][i+1][1],
|
|
patchCount[OpenSubdiv::FarPatchTables::CORNER][i+1][2],
|
|
patchCount[OpenSubdiv::FarPatchTables::CORNER][i+1][3]);
|
|
|
|
g_hud.DrawString(10, -180, "Tess level : %d", g_tessLevel);
|
|
g_hud.DrawString(10, -160, "Primitives : %d", numPrimsGenerated);
|
|
g_hud.DrawString(10, -140, "Vertices : %d", g_mesh->GetNumVertices());
|
|
g_hud.DrawString(10, -120, "Scheme : %s", g_scheme==kBilinear ? "BILINEAR" : (g_scheme == kLoop ? "LOOP" : "CATMARK"));
|
|
g_hud.DrawString(10, -100, "GPU Kernel : %.3f ms", g_gpuTime);
|
|
g_hud.DrawString(10, -80, "CPU Kernel : %.3f ms", g_cpuTime);
|
|
g_hud.DrawString(10, -60, "GPU Draw : %.3f ms", drawGpuTime);
|
|
g_hud.DrawString(10, -40, "CPU Draw : %.3f ms", drawCpuTime);
|
|
g_hud.DrawString(10, -20, "FPS : %3.1f", fps);
|
|
|
|
g_hud.Flush();
|
|
}
|
|
|
|
glFinish();
|
|
|
|
checkGLErrors("display leave");
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
motion(GLFWwindow *, double dx, double dy) {
|
|
int x=(int)dx, y=(int)dy;
|
|
#else
|
|
motion(int x, int y) {
|
|
#endif
|
|
|
|
if (g_mbutton[0] && !g_mbutton[1] && !g_mbutton[2]) {
|
|
// orbit
|
|
g_rotate[0] += x - g_prev_x;
|
|
g_rotate[1] += y - g_prev_y;
|
|
} else if (!g_mbutton[0] && !g_mbutton[1] && g_mbutton[2]) {
|
|
// pan
|
|
g_pan[0] -= g_dolly*(x - g_prev_x)/g_width;
|
|
g_pan[1] += g_dolly*(y - g_prev_y)/g_height;
|
|
} else if ((g_mbutton[0] && !g_mbutton[1] && g_mbutton[2]) or
|
|
(!g_mbutton[0] && g_mbutton[1] && !g_mbutton[2])) {
|
|
// dolly
|
|
g_dolly -= g_dolly*0.01f*(x - g_prev_x);
|
|
if(g_dolly <= 0.01) g_dolly = 0.01f;
|
|
}
|
|
|
|
g_prev_x = x;
|
|
g_prev_y = y;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
mouse(GLFWwindow *, int button, int state, int mods) {
|
|
#else
|
|
mouse(int button, int state) {
|
|
#endif
|
|
|
|
if (button == 0 && state == GLFW_PRESS && g_hud.MouseClick(g_prev_x, g_prev_y))
|
|
return;
|
|
|
|
if (button < 3) {
|
|
g_mbutton[button] = (state == GLFW_PRESS);
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
uninitGL() {
|
|
|
|
glDeleteQueries(1, &g_primQuery);
|
|
|
|
glDeleteBuffers(1, &g_cageVertexVBO);
|
|
glDeleteBuffers(1, &g_cageEdgeVBO);
|
|
glDeleteVertexArrays(1, &g_vao);
|
|
glDeleteVertexArrays(1, &g_cageVertexVAO);
|
|
glDeleteVertexArrays(1, &g_cageEdgeVAO);
|
|
|
|
if (g_mesh)
|
|
delete g_mesh;
|
|
|
|
delete g_cpuComputeController;
|
|
|
|
#ifdef OPENSUBDIV_HAS_OPENMP
|
|
delete g_ompComputeController;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_GCD
|
|
delete g_gcdComputeController;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_OPENCL
|
|
delete g_clComputeController;
|
|
uninitCL(g_clContext, g_clQueue);
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_CUDA
|
|
delete g_cudaComputeController;
|
|
cudaDeviceReset();
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK
|
|
delete g_glslTransformFeedbackComputeController;
|
|
#endif
|
|
|
|
#ifdef OPENSUBDIV_HAS_GLSL_COMPUTE
|
|
delete g_glslComputeController;
|
|
#endif
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
reshape(GLFWwindow *, int width, int height) {
|
|
#else
|
|
reshape(int width, int height) {
|
|
#endif
|
|
|
|
g_width = width;
|
|
g_height = height;
|
|
|
|
g_hud.Rebuild(width, height);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
void windowClose(GLFWwindow*) {
|
|
g_running = false;
|
|
}
|
|
#else
|
|
int windowClose() {
|
|
g_running = false;
|
|
return GL_TRUE;
|
|
}
|
|
#endif
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
toggleFullScreen() {
|
|
// XXXX manuelk : to re-implement from glut
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
keyboard(GLFWwindow *, int key, int scancode, int event, int mods) {
|
|
#else
|
|
#define GLFW_KEY_ESCAPE GLFW_KEY_ESC
|
|
keyboard(int key, int event) {
|
|
#endif
|
|
|
|
if (event == GLFW_RELEASE) return;
|
|
if (g_hud.KeyDown(tolower(key))) return;
|
|
|
|
switch (key) {
|
|
case 'Q': g_running = 0; break;
|
|
case 'F': fitFrame(); break;
|
|
case GLFW_KEY_TAB: toggleFullScreen(); break;
|
|
case '+':
|
|
case '=': g_tessLevel++; break;
|
|
case '-': g_tessLevel = std::max(g_tessLevelMin, g_tessLevel-1); break;
|
|
case GLFW_KEY_ESCAPE: g_hud.SetVisible(!g_hud.IsVisible()); break;
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
rebuildOsdMesh()
|
|
{
|
|
createOsdMesh( g_defaultShapes[ g_currentShape ].data, g_level, g_kernel, g_defaultShapes[ g_currentShape ].scheme );
|
|
}
|
|
|
|
static void
|
|
callbackDisplayStyle(int b)
|
|
{
|
|
if (g_displayStyle == kVaryingColor or b == kVaryingColor) {
|
|
// need to rebuild for varying reconstruct
|
|
g_displayStyle = b;
|
|
rebuildOsdMesh();
|
|
return;
|
|
}
|
|
g_displayStyle = b;
|
|
}
|
|
|
|
static void
|
|
callbackKernel(int k)
|
|
{
|
|
g_kernel = k;
|
|
|
|
#ifdef OPENSUBDIV_HAS_OPENCL
|
|
if (g_kernel == kCL and g_clContext == NULL) {
|
|
if (initCL(&g_clContext, &g_clQueue) == false) {
|
|
printf("Error in initializing OpenCL\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_CUDA
|
|
if (g_kernel == kCUDA and g_cudaInitialized == false) {
|
|
g_cudaInitialized = true;
|
|
cudaGLSetGLDevice( cutGetMaxGflopsDeviceId() );
|
|
}
|
|
#endif
|
|
|
|
rebuildOsdMesh();
|
|
}
|
|
|
|
static void
|
|
callbackLevel(int l)
|
|
{
|
|
g_level = l;
|
|
rebuildOsdMesh();
|
|
}
|
|
|
|
static void
|
|
callbackModel(int m)
|
|
{
|
|
if (m < 0)
|
|
m = 0;
|
|
|
|
if (m >= (int)g_defaultShapes.size())
|
|
m = (int)g_defaultShapes.size() - 1;
|
|
|
|
g_currentShape = m;
|
|
rebuildOsdMesh();
|
|
}
|
|
|
|
static void
|
|
callbackAdaptive(bool checked, int a)
|
|
{
|
|
if (OpenSubdiv::OsdGLDrawContext::SupportsAdaptiveTessellation()) {
|
|
g_adaptive = checked;
|
|
rebuildOsdMesh();
|
|
}
|
|
}
|
|
|
|
static void
|
|
callbackCheckBox(bool checked, int button)
|
|
{
|
|
switch (button) {
|
|
case kHUD_CB_DISPLAY_CAGE_EDGES:
|
|
g_drawCageEdges = checked;
|
|
break;
|
|
case kHUD_CB_DISPLAY_CAGE_VERTS:
|
|
g_drawCageVertices = checked;
|
|
break;
|
|
case kHUD_CB_ANIMATE_VERTICES:
|
|
g_moveScale = checked;
|
|
break;
|
|
case kHUD_CB_DISPLAY_PATCH_COLOR:
|
|
g_displayPatchColor = checked;
|
|
break;
|
|
case kHUD_CB_VIEW_LOD:
|
|
g_screenSpaceTess = checked;
|
|
break;
|
|
case kHUD_CB_FRACTIONAL_SPACING:
|
|
g_fractionalSpacing = checked;
|
|
break;
|
|
case kHUD_CB_PATCH_CULL:
|
|
g_patchCull = checked;
|
|
break;
|
|
case kHUD_CB_FREEZE:
|
|
g_freeze = checked;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
initHUD()
|
|
{
|
|
g_hud.Init(g_width, g_height);
|
|
|
|
g_hud.AddRadioButton(0, "CPU (K)", true, 10, 10, callbackKernel, kCPU, 'k');
|
|
#ifdef OPENSUBDIV_HAS_OPENMP
|
|
g_hud.AddRadioButton(0, "OPENMP", false, 10, 30, callbackKernel, kOPENMP, 'k');
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_GCD
|
|
g_hud.AddRadioButton(0, "GCD", false, 10, 30, callbackKernel, kGCD, 'k');
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_CUDA
|
|
g_hud.AddRadioButton(0, "CUDA", false, 10, 50, callbackKernel, kCUDA, 'k');
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_OPENCL
|
|
g_hud.AddRadioButton(0, "OPENCL", false, 10, 70, callbackKernel, kCL, 'k');
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK
|
|
g_hud.AddRadioButton(0, "GLSL TransformFeedback", false, 10, 90, callbackKernel, kGLSL, 'k');
|
|
#endif
|
|
#ifdef OPENSUBDIV_HAS_GLSL_COMPUTE
|
|
// Must also check at run time for OpenGL 4.3
|
|
if (GLEW_VERSION_4_3) {
|
|
g_hud.AddRadioButton(0, "GLSL Compute", false, 10, 110, callbackKernel, kGLSLCompute, 'k');
|
|
}
|
|
#endif
|
|
|
|
g_hud.AddRadioButton(1, "Wire (W)", g_displayStyle == kWire, 200, 10, callbackDisplayStyle, 0, 'w');
|
|
g_hud.AddRadioButton(1, "Shaded", g_displayStyle == kShaded, 200, 30, callbackDisplayStyle, 1, 'w');
|
|
g_hud.AddRadioButton(1, "Wire+Shaded", g_displayStyle == kWireShaded, 200, 50, callbackDisplayStyle, 2, 'w');
|
|
g_hud.AddRadioButton(1, "Varying color", g_displayStyle == kVaryingColor, 200, 70, callbackDisplayStyle, 3, 'w');
|
|
|
|
g_hud.AddCheckBox("Cage Edges (H)", g_drawCageEdges != 0,
|
|
350, 10, callbackCheckBox, kHUD_CB_DISPLAY_CAGE_EDGES, 'h');
|
|
g_hud.AddCheckBox("Cage Verts (J)", g_drawCageVertices != 0,
|
|
350, 30, callbackCheckBox, kHUD_CB_DISPLAY_CAGE_VERTS, 'j');
|
|
g_hud.AddCheckBox("Animate vertices (M)", g_moveScale != 0,
|
|
350, 50, callbackCheckBox, kHUD_CB_ANIMATE_VERTICES, 'm');
|
|
g_hud.AddCheckBox("Patch Color (P)", g_displayPatchColor != 0,
|
|
350, 70, callbackCheckBox, kHUD_CB_DISPLAY_PATCH_COLOR, 'p');
|
|
g_hud.AddCheckBox("Screen space LOD (V)", g_screenSpaceTess != 0,
|
|
350, 90, callbackCheckBox, kHUD_CB_VIEW_LOD, 'v');
|
|
g_hud.AddCheckBox("Fractional spacing (T)", g_fractionalSpacing != 0,
|
|
350, 110, callbackCheckBox, kHUD_CB_FRACTIONAL_SPACING, 't');
|
|
g_hud.AddCheckBox("Frustum Patch Culling (B)", g_patchCull != 0,
|
|
350, 130, callbackCheckBox, kHUD_CB_PATCH_CULL, 'b');
|
|
g_hud.AddCheckBox("Freeze (spc)", g_freeze != 0,
|
|
350, 150, callbackCheckBox, kHUD_CB_FREEZE, ' ');
|
|
|
|
if (OpenSubdiv::OsdGLDrawContext::SupportsAdaptiveTessellation())
|
|
g_hud.AddCheckBox("Adaptive (`)", g_adaptive!=0, 10, 150, callbackAdaptive, 0, '`');
|
|
|
|
for (int i = 1; i < 11; ++i) {
|
|
char level[16];
|
|
sprintf(level, "Lv. %d", i);
|
|
g_hud.AddRadioButton(3, level, i==2, 10, 170+i*20, callbackLevel, i, '0'+(i%10));
|
|
}
|
|
|
|
for (int i = 0; i < (int)g_defaultShapes.size(); ++i) {
|
|
g_hud.AddRadioButton(4, g_defaultShapes[i].name.c_str(), i==g_currentShape, -220, 10+i*16, callbackModel, i, 'n');
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
initGL()
|
|
{
|
|
glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
|
|
glEnable(GL_DEPTH_TEST);
|
|
glDepthFunc(GL_LEQUAL);
|
|
glCullFace(GL_BACK);
|
|
glEnable(GL_CULL_FACE);
|
|
|
|
glGenQueries(1, &g_primQuery);
|
|
|
|
glGenVertexArrays(1, &g_vao);
|
|
glGenVertexArrays(1, &g_cageVertexVAO);
|
|
glGenVertexArrays(1, &g_cageEdgeVAO);
|
|
glGenBuffers(1, &g_cageVertexVBO);
|
|
glGenBuffers(1, &g_cageEdgeVBO);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
idle() {
|
|
|
|
if (not g_freeze)
|
|
g_frame++;
|
|
|
|
updateGeom();
|
|
|
|
if (g_repeatCount != 0 and g_frame >= g_repeatCount)
|
|
g_running = 0;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
callbackError(OpenSubdiv::OsdErrorType err, const char *message)
|
|
{
|
|
printf("OsdError: %d\n", err);
|
|
printf("%s", message);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
static void
|
|
setGLCoreProfile()
|
|
{
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
#define glfwOpenWindowHint glfwWindowHint
|
|
#define GLFW_OPENGL_VERSION_MAJOR GLFW_CONTEXT_VERSION_MAJOR
|
|
#define GLFW_OPENGL_VERSION_MINOR GLFW_CONTEXT_VERSION_MINOR
|
|
#endif
|
|
|
|
glfwOpenWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
|
#if not defined(__APPLE__)
|
|
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MAJOR, 4);
|
|
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MINOR, 2);
|
|
glfwOpenWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
|
#else
|
|
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MAJOR, 3);
|
|
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MINOR, 2);
|
|
#endif
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
int main(int argc, char ** argv)
|
|
{
|
|
bool fullscreen = false;
|
|
std::string str;
|
|
for (int i = 1; i < argc; ++i) {
|
|
if (!strcmp(argv[i], "-d"))
|
|
g_level = atoi(argv[++i]);
|
|
else if (!strcmp(argv[i], "-c"))
|
|
g_repeatCount = atoi(argv[++i]);
|
|
else if (!strcmp(argv[i], "-f"))
|
|
fullscreen = true;
|
|
else {
|
|
std::ifstream ifs(argv[1]);
|
|
if (ifs) {
|
|
std::stringstream ss;
|
|
ss << ifs.rdbuf();
|
|
ifs.close();
|
|
str = ss.str();
|
|
g_defaultShapes.push_back(SimpleShape(str.c_str(), argv[1], kCatmark));
|
|
}
|
|
}
|
|
}
|
|
initializeShapes();
|
|
OsdSetErrorCallback(callbackError);
|
|
|
|
if (not glfwInit()) {
|
|
printf("Failed to initialize GLFW\n");
|
|
return 1;
|
|
}
|
|
|
|
static const char windowTitle[] = "OpenSubdiv glViewer";
|
|
|
|
#define CORE_PROFILE
|
|
#ifdef CORE_PROFILE
|
|
setGLCoreProfile();
|
|
#endif
|
|
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
if (fullscreen) {
|
|
|
|
g_primary = glfwGetPrimaryMonitor();
|
|
|
|
// apparently glfwGetPrimaryMonitor fails under linux : if no primary,
|
|
// settle for the first one in the list
|
|
if (not g_primary) {
|
|
int count=0;
|
|
GLFWmonitor ** monitors = glfwGetMonitors(&count);
|
|
|
|
if (count)
|
|
g_primary = monitors[0];
|
|
}
|
|
|
|
if (g_primary) {
|
|
GLFWvidmode const * vidmode = glfwGetVideoMode(g_primary);
|
|
g_width = vidmode->width;
|
|
g_height = vidmode->height;
|
|
}
|
|
}
|
|
|
|
if (not (g_window=glfwCreateWindow(g_width, g_height, windowTitle,
|
|
fullscreen and g_primary ? g_primary : NULL, NULL))) {
|
|
printf("Failed to open window.\n");
|
|
glfwTerminate();
|
|
return 1;
|
|
}
|
|
glfwMakeContextCurrent(g_window);
|
|
glfwSetKeyCallback(g_window, keyboard);
|
|
glfwSetCursorPosCallback(g_window, motion);
|
|
glfwSetMouseButtonCallback(g_window, mouse);
|
|
glfwSetWindowSizeCallback(g_window, reshape);
|
|
glfwSetWindowCloseCallback(g_window, windowClose);
|
|
#else
|
|
if (glfwOpenWindow(g_width, g_height, 8, 8, 8, 8, 24, 8,
|
|
fullscreen ? GLFW_FULLSCREEN : GLFW_WINDOW) == GL_FALSE) {
|
|
printf("Failed to open window.\n");
|
|
glfwTerminate();
|
|
return 1;
|
|
}
|
|
glfwSetWindowTitle(windowTitle);
|
|
glfwSetKeyCallback(keyboard);
|
|
glfwSetMousePosCallback(motion);
|
|
glfwSetMouseButtonCallback(mouse);
|
|
glfwSetWindowSizeCallback(reshape);
|
|
glfwSetWindowCloseCallback(windowClose);
|
|
#endif
|
|
|
|
|
|
#if defined(OSD_USES_GLEW)
|
|
#ifdef CORE_PROFILE
|
|
// this is the only way to initialize glew correctly under core profile context.
|
|
glewExperimental = true;
|
|
#endif
|
|
if (GLenum r = glewInit() != GLEW_OK) {
|
|
printf("Failed to initialize glew. Error = %s\n", glewGetErrorString(r));
|
|
exit(1);
|
|
}
|
|
#ifdef CORE_PROFILE
|
|
// clear GL errors which was generated during glewInit()
|
|
glGetError();
|
|
#endif
|
|
#endif
|
|
|
|
// activate feature adaptive tessellation if OSD supports it
|
|
g_adaptive = OpenSubdiv::OsdGLDrawContext::SupportsAdaptiveTessellation();
|
|
|
|
initGL();
|
|
linkDefaultProgram();
|
|
|
|
glfwSwapInterval(0);
|
|
|
|
initHUD();
|
|
rebuildOsdMesh();
|
|
|
|
while (g_running) {
|
|
idle();
|
|
display();
|
|
|
|
#if GLFW_VERSION_MAJOR>=3
|
|
glfwPollEvents();
|
|
glfwSwapBuffers(g_window);
|
|
#else
|
|
glfwSwapBuffers();
|
|
#endif
|
|
|
|
glFinish();
|
|
}
|
|
|
|
uninitGL();
|
|
glfwTerminate();
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|