source: GTP/trunk/App/Demos/Vis/CHC_revisited/Material.cpp @ 2769

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


namespace CHCDemo
{

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;

        mAmbientColor = RgbaColor(.2f, .2f, .2f, 1.0f);
        mDiffuseColor = RgbaColor(1.0f, 1.0f, 1.0f, 1.0f);
        //mSpecularColor = RgbaColor(0.0f, 0.0f, 0.0f, 1.0f);
        mSpecularColor = RgbaColor(0.5f, 0.5f, 0.5f, 1.0f);
}


Material::Material(): mId(0)
{
        InitMaterial();
}


Material::Material(int id): 
mId(id)
{
        InitMaterial();
}


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


int Material::GetId() const
{
        return mId;
}


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

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

        return m;
}


//void Material::Render(RenderState *state)
void Material::Render(RenderState *state)
{
        state->SetState(mTexture != NULL, mAlphaTestEnabled);

        if (mTexture)
                mTexture->Bind();
        else
                glBindTexture(GL_TEXTURE_2D, 0);

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


}