mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-02 00:00:07 +00:00
556d1dda79
This matches the current GLSL implementation: - BoxSplineTriangle and GregoryTriangle patch shaders - tess factor and tess evalutation for triangle patches - improved adaptive tessellation code organization and function names - quartic Bezier triangle patch evaluation - OsdGetPatchIsTriangleRotated() function added - OsdInterpolatePatchCoordTriangle() function added
166 lines
5.3 KiB
C++
166 lines
5.3 KiB
C++
//
|
|
// Copyright 2015 Pixar
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "Apache License")
|
|
// with the following modification; you may not use this file except in
|
|
// compliance with the Apache License and the following modification to it:
|
|
// Section 6. Trademarks. is deleted and replaced with:
|
|
//
|
|
// 6. Trademarks. This License does not grant permission to use the trade
|
|
// names, trademarks, service marks, or product names of the Licensor
|
|
// and its affiliates, except as required to comply with Section 4(c) of
|
|
// the License and to reproduce the content of the NOTICE file.
|
|
//
|
|
// You may obtain a copy of the Apache License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the Apache License with the above modification is
|
|
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
// KIND, either express or implied. See the Apache License for the specific
|
|
// language governing permissions and limitations under the Apache License.
|
|
//
|
|
|
|
#include "../osd/hlslPatchShaderSource.h"
|
|
#include "../far/error.h"
|
|
|
|
#include <sstream>
|
|
#include <string>
|
|
|
|
namespace OpenSubdiv {
|
|
namespace OPENSUBDIV_VERSION {
|
|
|
|
namespace Osd {
|
|
|
|
static const char *commonShaderSource =
|
|
#include "hlslPatchCommon.gen.h"
|
|
;
|
|
static const char *commonTessShaderSource =
|
|
#include "hlslPatchCommonTess.gen.h"
|
|
;
|
|
static const char *patchLegacyShaderSource =
|
|
#include "hlslPatchLegacy.gen.h"
|
|
;
|
|
static const char *patchBasisTypesShaderSource =
|
|
#include "patchBasisCommonTypes.gen.h"
|
|
;
|
|
static const char *patchBasisShaderSource =
|
|
#include "patchBasisCommon.gen.h"
|
|
;
|
|
static const char *patchBasisEvalShaderSource =
|
|
#include "patchBasisCommonEval.gen.h"
|
|
;
|
|
static const char *boxSplineTriangleShaderSource =
|
|
#include "hlslPatchBoxSplineTriangle.gen.h"
|
|
;
|
|
static const char *bsplineShaderSource =
|
|
#include "hlslPatchBSpline.gen.h"
|
|
;
|
|
static const char *gregoryShaderSource =
|
|
#include "hlslPatchGregory.gen.h"
|
|
;
|
|
static const char *gregoryBasisShaderSource =
|
|
#include "hlslPatchGregoryBasis.gen.h"
|
|
;
|
|
static const char *gregoryTriangleShaderSource =
|
|
#include "hlslPatchGregoryTriangle.gen.h"
|
|
;
|
|
|
|
/*static*/
|
|
std::string
|
|
HLSLPatchShaderSource::GetCommonShaderSource() {
|
|
std::stringstream ss;
|
|
ss << std::string(commonShaderSource);
|
|
ss << std::string(commonTessShaderSource);
|
|
ss << std::string(patchLegacyShaderSource);
|
|
return ss.str();
|
|
}
|
|
|
|
/*static*/
|
|
std::string
|
|
HLSLPatchShaderSource::GetPatchBasisShaderSource() {
|
|
std::stringstream ss;
|
|
#if defined(OPENSUBDIV_GREGORY_EVAL_TRUE_DERIVATIVES)
|
|
ss << "#define OPENSUBDIV_GREGORY_EVAL_TRUE_DERIVATIVES\n";
|
|
#endif
|
|
ss << std::string(patchBasisTypesShaderSource);
|
|
ss << std::string(patchBasisShaderSource);
|
|
ss << std::string(patchBasisEvalShaderSource);
|
|
return ss.str();
|
|
}
|
|
|
|
/*static*/
|
|
std::string
|
|
HLSLPatchShaderSource::GetVertexShaderSource(Far::PatchDescriptor::Type type) {
|
|
switch (type) {
|
|
case Far::PatchDescriptor::REGULAR:
|
|
return bsplineShaderSource;
|
|
case Far::PatchDescriptor::LOOP:
|
|
return boxSplineTriangleShaderSource;
|
|
case Far::PatchDescriptor::GREGORY:
|
|
return gregoryShaderSource;
|
|
case Far::PatchDescriptor::GREGORY_BOUNDARY:
|
|
return std::string("#define OSD_PATCH_GREGORY_BOUNDRY\n")
|
|
+ std::string(gregoryShaderSource);
|
|
case Far::PatchDescriptor::GREGORY_BASIS:
|
|
return gregoryBasisShaderSource;
|
|
case Far::PatchDescriptor::GREGORY_TRIANGLE:
|
|
return gregoryTriangleShaderSource;
|
|
default:
|
|
break; // returns empty (points, lines, quads, ...)
|
|
}
|
|
return std::string();
|
|
}
|
|
|
|
/*static*/
|
|
std::string
|
|
HLSLPatchShaderSource::GetHullShaderSource(Far::PatchDescriptor::Type type) {
|
|
switch (type) {
|
|
case Far::PatchDescriptor::REGULAR:
|
|
return bsplineShaderSource;
|
|
case Far::PatchDescriptor::LOOP:
|
|
return boxSplineTriangleShaderSource;
|
|
case Far::PatchDescriptor::GREGORY:
|
|
return gregoryShaderSource;
|
|
case Far::PatchDescriptor::GREGORY_BOUNDARY:
|
|
return std::string("#define OSD_PATCH_GREGORY_BOUNDRY\n")
|
|
+ std::string(gregoryShaderSource);
|
|
case Far::PatchDescriptor::GREGORY_BASIS:
|
|
return gregoryBasisShaderSource;
|
|
case Far::PatchDescriptor::GREGORY_TRIANGLE:
|
|
return gregoryTriangleShaderSource;
|
|
default:
|
|
break; // returns empty (points, lines, quads, ...)
|
|
}
|
|
return std::string();
|
|
}
|
|
|
|
/*static*/
|
|
std::string
|
|
HLSLPatchShaderSource::GetDomainShaderSource(Far::PatchDescriptor::Type type) {
|
|
switch (type) {
|
|
case Far::PatchDescriptor::REGULAR:
|
|
return bsplineShaderSource;
|
|
case Far::PatchDescriptor::LOOP:
|
|
return boxSplineTriangleShaderSource;
|
|
case Far::PatchDescriptor::GREGORY:
|
|
return gregoryShaderSource;
|
|
case Far::PatchDescriptor::GREGORY_BOUNDARY:
|
|
return std::string("#define OSD_PATCH_GREGORY_BOUNDRY\n")
|
|
+ std::string(gregoryShaderSource);
|
|
case Far::PatchDescriptor::GREGORY_BASIS:
|
|
return gregoryBasisShaderSource;
|
|
case Far::PatchDescriptor::GREGORY_TRIANGLE:
|
|
return gregoryTriangleShaderSource;
|
|
default:
|
|
break; // returns empty (points, lines, quads, ...)
|
|
}
|
|
return std::string();
|
|
}
|
|
|
|
} // end namespace Osd
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
} // end namespace OpenSubdiv
|