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- Disabled the FP16 path since needs rewriting good part of the code: need time!

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- GPU version works only with FP32 blending capable hardware: aka Shader Model 4.0!
- CPU version should work anyway
This commit is contained in:
Paolo Cignoni cignoni 2008-02-12 14:39:56 +00:00
parent 2a6905b252
commit 873aed8632
2 changed files with 33 additions and 38 deletions
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64
src/meshlabplugins/filter_ao/filter_ao.cpp
View File

@ -24,6 +24,11 @@
History
$Log$
Revision 1.31 2008/02/12 14:39:56 mischitelli
- Disabled the FP16 path since needs rewriting good part of the code: need time!
- GPU version works only with FP32 blending capable hardware: aka Shader Model 4.0!
- CPU version should work anyway
Revision 1.30 2008/02/11 18:55:21 mischitelli
- Small changes for improved ATI support
@ -96,6 +101,9 @@ AmbientOcclusionPlugin::AmbientOcclusionPlugin()
depthTexSize = AMBOCC_DEFAULT_TEXTURE_SIZE;
depthTexArea = depthTexSize*depthTexSize;
maxTexSize = 16;
colorFormat = GL_RGBA32F_ARB;
dataTypeFP = GL_FLOAT;
}
AmbientOcclusionPlugin::~AmbientOcclusionPlugin()
@ -364,9 +372,6 @@ void AmbientOcclusionPlugin::initGL(vcg::CallBackPos *cb, unsigned int numVertic
//******* CHECK THAT EVERYTHING IS SUPPORTED **********/
if (useGPU)
{
GLenum colorFormat = GL_RGBA32F_ARB;
GLenum dataTypeFP = GL_FLOAT;
if (!glewIsSupported("GL_ARB_vertex_shader GL_ARB_fragment_shader"))
{
if (!glewIsSupported("GL_EXT_vertex_shader GL_EXT_fragment_shader"))
@ -383,39 +388,28 @@ void AmbientOcclusionPlugin::initGL(vcg::CallBackPos *cb, unsigned int numVertic
return;
}
if ( !glewIsSupported("GL_ARB_texture_float") )
if ( glewIsSupported("GL_ARB_texture_float") )
{
if ( glewIsSupported("GL_ATI_texture_float") )
if ( !glewIsSupported("GL_EXT_gpu_shader4") ) //Only DX10-grade cards support FP32 blending
{
if ( glewIsSupported("EXT_gpu_shader4") )
colorFormat = 0x8814; //RGBA_FLOAT32_ATI on HD2k or HD3k cards
else
{
Log(0,"Warning: your hardware doesn't support blending on FP32 textures; using FP16 instead");
colorFormat = 0x881A; //RGBA_FLOAT16_ATI on X1k or older cards
dataTypeFP = GL_HALF_FLOAT_ARB;
}
}
else
{
if ( glewIsSupported("GL_ARB_half_float_pixel") )
{
Log(0,"Warning: your hardware doesn't support blending on FP32 textures; using FP16 instead");
colorFormat = GL_RGBA16F_ARB;
dataTypeFP = GL_HALF_FLOAT_ARB;
}
else
{
Log(0,"Your hardware doesn't support FP16/32 textures, which are required for hw occlusion");
errInit = true;
return;
}
//colorFormat = GL_RGB16F_ARB;
//dataTypeFP = GL_HALF_FLOAT_ARB;
Log(0,"Your hardware can't do FP32 blending, and currently the FP16 version is not yet implemented.");
errInit = true;
return;
}
colorFormat = GL_RGB32F_ARB;
dataTypeFP = GL_FLOAT;
}
else
{
Log(0,"Your hardware doesn't support floating point textures, which are required for hw occlusion");
errInit = true;
return;
}
//******* QUERY HARDWARE FOR: MAX NUMBER OF MRTs *********/
unsigned int maxTexPages=1;
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, reinterpret_cast<GLint*>(&maxTexPages) );
@ -454,7 +448,7 @@ void AmbientOcclusionPlugin::initGL(vcg::CallBackPos *cb, unsigned int numVertic
resultBufferMRT = new GLenum[numTexPages];
//******* INIT TEXTURES **********/
initTextures(colorFormat, dataTypeFP);
initTextures();
//*******INIT FBO*********/
cb(60, "Initializing: Framebuffer Objects");
@ -502,7 +496,7 @@ void AmbientOcclusionPlugin::initGL(vcg::CallBackPos *cb, unsigned int numVertic
cb(100, "Initializing: Done.");
}
void AmbientOcclusionPlugin::initTextures(GLenum colorFormat, GLenum dataTypeFP)
void AmbientOcclusionPlugin::initTextures()
{
unsigned int potTexSize = 0;
@ -639,11 +633,11 @@ void AmbientOcclusionPlugin::vertexCoordsToTexture(MeshModel &m)
//Write vertex coordinates
glBindTexture(GL_TEXTURE_3D_EXT, vertexCoordTex);
glTexSubImage3D(GL_TEXTURE_3D_EXT, 0, 0, 0, 0, maxTexSize, maxTexSize, numTexPages, GL_RGBA, GL_FLOAT, vertexPosition);
glTexSubImage3D(GL_TEXTURE_3D_EXT, 0, 0, 0, 0, maxTexSize, maxTexSize, numTexPages, GL_RGBA, dataTypeFP, vertexPosition);
//Write normal directions
glBindTexture(GL_TEXTURE_3D_EXT, vertexNormalsTex);
glTexSubImage3D(GL_TEXTURE_3D_EXT, 0, 0, 0, 0, maxTexSize, maxTexSize, numTexPages, GL_RGBA, GL_FLOAT, vertexNormals);
glTexSubImage3D(GL_TEXTURE_3D_EXT, 0, 0, 0, 0, maxTexSize, maxTexSize, numTexPages, GL_RGBA, dataTypeFP, vertexNormals);
delete [] vertexNormals;
delete [] vertexPosition;

7
src/meshlabplugins/filter_ao/filter_ao.h
View File

@ -47,7 +47,9 @@ protected:
vertexNormalsTex,
*resultBufferTex;
GLenum *resultBufferMRT;
GLenum *resultBufferMRT,
colorFormat,
dataTypeFP;
unsigned int numViews,
depthTexArea,
@ -80,8 +82,7 @@ public:
MeshModel &m,
FilterParameterSet & /*parent*/,
vcg::CallBackPos * cb) ;
void initTextures (GLenum colorFormat,
GLenum dataTypeFP);
void initTextures (void);
void initGL (vcg::CallBackPos *cb,
unsigned int numVertices);
bool processGL (AOGLWidget *glw,