//---------------------------------------
void MaterialExporter::exportCgfxShaderNode (
COLLADASW::InstanceEffect& effectInstance,
cgfxShaderNode* shaderNodeCgfx )
{
// Get the filename of the current cgfx file
MString shaderFxFile = cgfxFindFile(shaderNodeCgfx->shaderFxFile());
String shaderFxFileName = shaderFxFile.asChar(); // check3d.cgfx
setShaderFxFileUri ( COLLADASW::URI ( COLLADASW::URI::nativePathToUri ( shaderFxFileName ) ) );
// Get the current technique name
String techniqueName = shaderNodeCgfx->getTechnique().asChar(); // techniqueName.asChar()
// Add the technique hint to the collada document.
effectInstance.addTechniqueHint ( techniqueName, COLLADASW::CSWC::CSW_PLATFORM_PC_OGL );
// Clear the samplers setParam list.
mSamplers.clear ();
// Get the setParams attributes
CGeffect cgEffect = shaderNodeCgfx->effect();
CGtechnique cgTechnique = cgGetNamedTechnique( cgEffect, techniqueName.c_str() );
cgfxAttrDefList* effectAttributes = cgfxAttrDef::attrsFromEffect ( cgEffect, cgTechnique );
MString sResult, sTemp;
cgfxAttrDefList::iterator effectIt;
for ( effectIt=effectAttributes->begin(); effectIt; ++effectIt )
{
cgfxAttrDef* effectAttribute = *effectIt;
setSetParam ( shaderNodeCgfx, effectAttribute );
}
}
/*-------------------------------------------------------------------------
-------------------------------------------------------------------------*/
bool FilterBox::Initialize(int w, int h)
{
bufw = w;
bufh = h;
//
// FBO
//
glGenFramebuffersEXT(2, fb);
glGenTextures(2, textureID);
glGenRenderbuffersEXT(1, &depth_rb);
initRT(0, w, h);
initRT(1, w, h);
//
// initialize depth renderbuffer
//
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, depth_rb);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, w, h);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, depth_rb);
CheckFramebufferStatus();
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
//
// CGFX things
//
cgContext = cgCreateContext();
cgGLRegisterStates(cgContext);
std::string resolved_path;
cgEffect = cgCreateEffectFromFile(cgContext, "data/shaders/FilterBox.cgfx", NULL);
if(!cgEffect)
{
exit(0);
const char * pszErrors = NULL;
fprintf(stderr, "CgFx Parse error : %s", pszErrors);
const char *listing = cgGetLastListing(cgContext);
bValid = false;
return false;
}
cgTechnique = cgGetNamedTechnique(cgEffect, "Filter");
cgPassFilterH = cgGetNamedPass(cgTechnique, "verticalPass");
cgPassFilterV = cgGetNamedPass(cgTechnique, "horizontalPass");
cgPassBlend = cgGetNamedPass(cgTechnique, "drawFinal");
cgBlendFactor = cgGetNamedEffectParameter(cgEffect, "blendFactor");
cgGlowFactor = cgGetNamedEffectParameter(cgEffect, "glowFactor");
srcSampler = cgGetNamedEffectParameter(cgEffect, "srcSampler");
tempSampler = cgGetNamedEffectParameter(cgEffect, "tempSampler");
finalSampler = cgGetNamedEffectParameter(cgEffect, "finalSampler");
verticalDir = cgGetNamedEffectParameter(cgEffect, "verticalDir");
horizontalDir = cgGetNamedEffectParameter(cgEffect, "horizontalDir");
cgGLSetParameter2f(verticalDir, 0,1.0f/(float)h);
cgGLSetParameter2f(horizontalDir, 1.0f/(float)w, 0);
bValid = true;
return true;
}
bool cEffect::SetTechnique(const std::string &lacTechnique)
{
if ( macLastTechnique != lacTechnique )
{
// Set technique
mTechnique = cgGetNamedTechnique( mEffect, lacTechnique.c_str() );
if ( mTechnique )
{
macLastTechnique = lacTechnique;
return true;
}
}
return false;
}
void Effect::load(const char* code)
{
effect.reset(cgCreateEffect(context, code, 0), EffectDeleter());
if (!effect)
{
throw std::runtime_error("Could not create effect");
}
technique = cgGetNamedTechnique(effect.get(), "High");
if (technique == 0)
{
throw std::runtime_error("Technique not found");
}
if (cgValidateTechnique(technique) == false)
{
throw std::runtime_error("Technique not valid");
}
}
