This commit is contained in:
Erwin Coumans 2016-04-23 11:06:49 -07:00
commit 16cbc191bd
6 changed files with 97 additions and 26 deletions

View File

@ -43,7 +43,11 @@ struct CommonRenderInterface
virtual void drawPoint(const double* position, const double color[4], double pointDrawSize)=0;
virtual int registerShape(const float* vertices, int numvertices, const int* indices, int numIndices,int primitiveType=B3_GL_TRIANGLES, int textureIndex=-1)=0;
virtual void updateShape(int shapeIndex, const float* vertices)=0;
virtual int registerTexture(const unsigned char* texels, int width, int height)=0;
virtual int registerTexture(const unsigned char* texels, int width, int height)=0;
virtual void updateTexture(int textureIndex, const unsigned char* texels)=0;
virtual void activateTexture(int textureIndex)=0;
virtual void writeSingleInstanceTransformToCPU(const float* position, const float* orientation, int srcIndex)=0;
virtual void writeSingleInstanceTransformToCPU(const double* position, const double* orientation, int srcIndex)=0;
virtual void writeSingleInstanceColorToCPU(float* color, int srcIndex)=0;

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@ -134,7 +134,12 @@ extern int gShapeIndex;
struct InternalTextureHandle
{
GLuint m_glTexture;
int m_width;
int m_height;
};
@ -148,7 +153,7 @@ struct InternalDataRenderer : public GLInstanceRendererInternalData
GLuint m_defaultTexturehandle;
b3AlignedObjectArray<GLuint> m_textureHandles;
b3AlignedObjectArray<InternalTextureHandle> m_textureHandles;
GLRenderToTexture* m_shadowMap;
GLuint m_shadowTexture;
@ -518,9 +523,9 @@ int GLInstancingRenderer::registerGraphicsInstance(int shapeIndex, const float*
int GLInstancingRenderer::registerTexture(const unsigned char* texels, int width, int height)
{
b3Assert(glGetError() ==GL_NO_ERROR);
glActiveTexture(GL_TEXTURE0);
int textureIndex = m_data->m_textureHandles.size();
const GLubyte* image= (const GLubyte*)texels;
const GLubyte* image= (const GLubyte*)texels;
GLuint textureHandle;
glGenTextures(1,(GLuint*)&textureHandle);
glBindTexture(GL_TEXTURE_2D,textureHandle);
@ -528,18 +533,51 @@ int GLInstancingRenderer::registerTexture(const unsigned char* texels, int width
b3Assert(glGetError() ==GL_NO_ERROR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width,height,0,GL_RGB,GL_UNSIGNED_BYTE,image);
b3Assert(glGetError() ==GL_NO_ERROR);
glGenerateMipmap(GL_TEXTURE_2D);
b3Assert(glGetError() ==GL_NO_ERROR);
InternalTextureHandle h;
h.m_glTexture = textureHandle;
h.m_width = width;
h.m_height = height;
m_data->m_textureHandles.push_back(textureHandle);
m_data->m_textureHandles.push_back(h);
return textureIndex;
}
void GLInstancingRenderer::updateTexture(int textureIndex, const unsigned char* texels)
{
if (textureIndex>=0)
{
glActiveTexture(GL_TEXTURE0);
b3Assert(glGetError() ==GL_NO_ERROR);
InternalTextureHandle& h = m_data->m_textureHandles[textureIndex];
glBindTexture(GL_TEXTURE_2D,h.m_glTexture);
b3Assert(glGetError() ==GL_NO_ERROR);
const GLubyte* image= (const GLubyte*)texels;
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, h.m_width,h.m_height,0,GL_RGB,GL_UNSIGNED_BYTE,image);
b3Assert(glGetError() ==GL_NO_ERROR);
glGenerateMipmap(GL_TEXTURE_2D);
b3Assert(glGetError() ==GL_NO_ERROR);
}
}
void GLInstancingRenderer::activateTexture(int textureIndex)
{
glActiveTexture(GL_TEXTURE0);
if (textureIndex>=0)
{
glBindTexture(GL_TEXTURE_2D,m_data->m_textureHandles[textureIndex].m_glTexture);
} else
{
glBindTexture(GL_TEXTURE_2D,0);
}
}
void GLInstancingRenderer::updateShape(int shapeIndex, const float* vertices)
{
b3GraphicsInstance* gfxObj = m_graphicsInstances[shapeIndex];
@ -559,7 +597,7 @@ int GLInstancingRenderer::registerShape(const float* vertices, int numvertices,
if (textureId>=0)
{
gfxObj->m_texturehandle = m_data->m_textureHandles[textureId];
gfxObj->m_texturehandle = m_data->m_textureHandles[textureId].m_glTexture;
}
gfxObj->m_primitiveType = primitiveType;

View File

@ -63,6 +63,9 @@ public:
virtual int registerShape(const float* vertices, int numvertices, const int* indices, int numIndices, int primitiveType=B3_GL_TRIANGLES, int textureIndex=-1);
virtual int registerTexture(const unsigned char* texels, int width, int height);
virtual void updateTexture(int textureIndex, const unsigned char* texels);
virtual void activateTexture(int textureIndex);
///position x,y,z, quaternion x,y,z,w, color r,g,b,a, scaling x,y,z
virtual int registerGraphicsInstance(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling);

View File

@ -50,6 +50,10 @@ struct SimpleOpenGL2Renderer : public CommonRenderInterface
{
return -1;
}
virtual void updateTexture(int textureIndex, const unsigned char* texels) {}
virtual void activateTexture(int textureIndex) {}
virtual int registerGraphicsInstance(int shapeIndex, const double* position, const double* quaternion, const double* color, const double* scaling);
virtual int registerGraphicsInstance(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling);

View File

@ -44,17 +44,7 @@ void InternalOpenGL2RenderCallbacks::display2()
PrimInternalData* data = getData();
glUseProgram(data->m_shaderProg);
float identity[16]={1,0,0,0,
0,1,0,0,
0,0,1,0,
0,0,0,1};
glUniformMatrix4fv(data->m_viewmatUniform, 1, false, identity);
glUniformMatrix4fv(data->m_projMatUniform, 1, false, identity);
glBindBuffer(GL_ARRAY_BUFFER, s_vertexBuffer);
glBindVertexArray(s_vertexArrayObject);
assert(glGetError()==GL_NO_ERROR);

View File

@ -1,10 +1,8 @@
#include "OpenGLWindow/SimpleOpenGL3App.h"
#include "Bullet3Common/b3Vector3.h"
#include "Bullet3Common/b3CommandLineArgs.h"
#include "assert.h"
#include <stdio.h>
#include "OpenGLWindow/OpenGLInclude.h"
char* gVideoFileName = 0;
char* gPngFileName = 0;
@ -16,6 +14,8 @@ static b3MouseButtonCallback sOldMouseButtonCB = 0;
static b3KeyboardCallback sOldKeyboardCB = 0;
//static b3RenderCallback sOldRenderCB = 0;
float gWidth = 0 ;
float gHeight = 0;
void MyWheelCallback(float deltax, float deltay)
{
@ -24,6 +24,9 @@ void MyWheelCallback(float deltax, float deltay)
}
void MyResizeCallback( float width, float height)
{
gWidth = width;
gHeight = height;
if (sOldResizeCB)
sOldResizeCB(width,height);
}
@ -59,6 +62,7 @@ int main(int argc, char* argv[])
SimpleOpenGL3App* app = new SimpleOpenGL3App("SimpleOpenGL3App",1024,768,true);
app->m_instancingRenderer->getActiveCamera()->setCameraDistance(13);
app->m_instancingRenderer->getActiveCamera()->setCameraPitch(0);
app->m_instancingRenderer->getActiveCamera()->setCameraTargetPosition(0,0,0);
@ -74,16 +78,22 @@ int main(int argc, char* argv[])
app->m_window->setResizeCallback(MyResizeCallback);
assert(glGetError()==GL_NO_ERROR);
myArgs.GetCmdLineArgument("mp4_file",gVideoFileName);
if (gVideoFileName)
app->dumpFramesToVideo(gVideoFileName);
myArgs.GetCmdLineArgument("png_file",gPngFileName);
char fileName[1024];
int textureIndex = -1;
int textureWidth = 128;
int textureHeight = 128;
unsigned char* image=new unsigned char[textureWidth*textureHeight*4];
int textureHandle = app->m_renderer->registerTexture(image,textureWidth,textureHeight);
do
{
static int frameCount = 0;
@ -96,7 +106,29 @@ int main(int argc, char* argv[])
app->dumpNextFrameToPng(fileName);
}
assert(glGetError()==GL_NO_ERROR);
//update the texels of the texture using a simple pattern, animated using frame index
for(int y=0;y<textureHeight;++y)
{
const int t=(y+frameCount)>>4;
unsigned char* pi=image+y*textureWidth*3;
for(int x=0;x<textureWidth;++x)
{
const int s=x>>4;
const unsigned char b=180;
unsigned char c=b+((s+(t&1))&1)*(255-b);
pi[0]=pi[1]=pi[2]=pi[3]=c;pi+=3;
}
}
app->m_renderer->activateTexture(textureHandle);
app->m_renderer->updateTexture(textureHandle,image);
float color[4] = {255,1,1,1};
app->m_primRenderer->drawTexturedRect(100,200,gWidth/2-50,gHeight/2-50,color,0,0,1,1,true);
app->m_instancingRenderer->init();
app->m_instancingRenderer->updateCamera();