shaders/shadertexmat/orshadertexmat_shader.cxx

/***************************************************************************************
Autodesk(R) Open Reality(R) Samples

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***************************************************************************************/

#ifndef ORSDK_DLL

    #define ORSDK_DLL K_DLLEXPORT
#endif

// Class declaration
#include "orshadertexmat_shader.h"
#include <fbsdk/fbsdk-opengl.h>

//--- Registration defines
#define ORSHADERTEXMAT__CLASS       ORSHADERTEXMAT__CLASSNAME
#define ORSHADERTEXMAT__DESC        "OR - Shader TexMat Description"

//--- FiLMBOX Registration & Implementation.
FBShaderImplementation( ORSHADERTEXMAT__CLASS   );
FBRegisterShader    (   ORSHADERTEXMAT__DESCSTR,
                     ORSHADERTEXMAT__CLASS,
                     ORSHADERTEXMAT__DESCSTR,
                     ORSHADERTEXMAT__DESC,
                     FB_DEFAULT_SDK_ICON        );
/************************************************
*   FiLMBOX Constructor.
************************************************/
bool ORShaderTexMat::FBCreate()
{
    return true;
}


/************************************************
*   FiLMBOX Destructor.
************************************************/
void ORShaderTexMat::FBDestroy()
{
}

/************************************************
*   Shader functions.
************************************************/
void ORShaderTexMat::ShadeModel( FBRenderOptions* pRenderOptions, FBShaderModelInfo* pShaderModelInfo, FBRenderingPass pPass )
{
    /***************************************************************************************
    * Make sure everything in OpenGL is the same on exit as when it entered this function! *
    ***************************************************************************************/
    FBModel* lModel = pShaderModelInfo->GetFBModel();
    FBModelVertexData* lModelVertexData = lModel->ModelVertexData;
    
    const int lSubRegionCount = lModelVertexData->GetSubRegionCount();

    glEnable( GL_LIGHTING);
    
    lModelVertexData->EnableOGLVertexData();  //Bind Vertex Array or Vertex Buffer Object.

    for(int lSubRegionIdx = 0; lSubRegionIdx < lSubRegionCount; ++lSubRegionIdx)
    {
        if (lModel->Materials.GetCount() > lSubRegionIdx)
        {
            FBMaterial* lMaterial = lModel->Materials[lSubRegionIdx];
            lMaterial->OGLInit(); // Setup OpenGL fixed pipeline's ambient/diffuse/emissive/specular/shininess materials parameters.
            FBTexture* lDiffuseTex = lMaterial->GetTexture( kFBMaterialTextureDiffuse );
            if (lDiffuseTex)
            {
                lDiffuseTex->OGLInit(); //Bind color texture and it's associated matrix.
                lModelVertexData->EnableOGLUVSet(lDiffuseTex->Mapping); //Bind the UVSet. 
                glEnable( GL_TEXTURE_2D );
            }

            lModelVertexData->DrawSubRegion(lSubRegionIdx); // draw all the sub patches inside this sub regions.

            if (lDiffuseTex)
            {
                lModelVertexData->DisableOGLUVSet(); //Unbind the UVSet.
                glDisable(GL_TEXTURE_2D);
            }
        }
        else
        {
            lModelVertexData->DrawSubRegion(lSubRegionIdx); // draw all the sub patches inside this sub regions.
        }
    }
    
    lModelVertexData->DisableOGLVertexData(); //Unbind Vertex Array or Vertex Buffer Object.
    glDisable(GL_LIGHTING);

}