source: GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Material.cpp @ 3038

#include "common.h"
#include "Material.h"
#include "Texture.h"
#include "glInterface.h"
#include "RenderState.h"
#include "ShaderProgram.h"

using namespace std;


namespace CHCDemoEngine
{

RgbaColor RandomColor(float a, float b)
{
        return RgbaColor(a + Random(b), a + Random(b), a + Random(b), 1);
}


void Material::InitMaterial()
{
        mTexture = NULL;
        mAlphaTestEnabled = false;
        mCullFaceEnabled = true;
        
        mGPUVertexParameters = NULL;
        mVertexProgram = NULL;
        
        mGPUFragmentParameters = NULL;
        mFragmentProgram = NULL;
}


Material::Material():
mAmbientColor(RgbaColor(0.2f, 0.2f, 0.2f, 1.0f)),
mDiffuseColor(RgbaColor(1.0f, 1.0f, 1.0f, 1.0f)),
mSpecularColor(RgbaColor(.0f, .0f, .0f, 1.0f)),
mEmmisiveColor(RgbaColor(.0f, .0f, .0f, 1.0f))
{
        InitMaterial();
}


Material::~Material()
{
        //DEL_PTR(mGPUFragmentParameters);
        //DEL_PTR(mGPUVertexParameters);
}


Material::Material(const RgbaColor &color):
mDiffuseColor(color),
mAmbientColor(color),
mSpecularColor(0, 0, 0, 1),
mTexture(NULL)
{
        InitMaterial();
}


Material RandomMaterial()
{
        float a = 0.1f;
        float b = 0.9f;

        Material m;
        m.mDiffuseColor = RandomColor(a, b);

        return m;
}


void Material::Render(RenderState *state)
{
        state->SetState(this);

        glMaterialfv(GL_FRONT, GL_AMBIENT, (float *)&mAmbientColor.r);
        glMaterialfv(GL_FRONT, GL_DIFFUSE, (float *)&mDiffuseColor.r);
        glMaterialfv(GL_FRONT, GL_EMISSION, (float *)&mEmmisiveColor.r);
        glMaterialfv(GL_FRONT, GL_SPECULAR, (float *)&mSpecularColor.r);
}


void Material::SetFragmentProgram(ShaderProgram *p) 
{ 
        mFragmentProgram = p; 

        mGPUFragmentParameters->Reset();
        mGPUFragmentParameters->SetProgram(p);
}
        

void Material::SetVertexProgram(ShaderProgram *p) 
{ 
        mVertexProgram = p; 

        mGPUVertexParameters->Reset();
        mGPUVertexParameters->SetProgram(p);
}

}