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Quellcode

bump = normalize( texture2D(normalMap, vsOutTexCoord0).xyz * 2.0 - 1.0);

Quellcode

vec3 ReflNormal = vec3( bump.z * vsOutNormal.x + bump.x * vsOutTangent.x + bump.y * vsOutBinormal.x,
bump.z * vsOutNormal.y + bump.x * vsOutTangent.y + bump.y * vsOutBinormal.y,    
bump.z * vsOutNormal.z + bump.x * vsOutTangent.z + bump.y * vsOutBinormal.z );

Quellcode

    void CalculateLightVsDot(int CL)
    {
        #if DIRECT_LIGHT==1
            #define intensity 1.0
            vec3 L = normalize(gl_LightSource[CL].position.xyz);            
        #else
            // direction position -> light
            vec3 lightDir   = gl_LightSource[CL].position.w==0.0 ? gl_LightSource[CL].position.xyz: gl_LightSource[CL].position.xyz - vsOutPositionMV;
            // intensity decrease through distance
            float intensity = gl_LightSource[CL].position.w==0.0 ? 1.0 : 1.0/(gl_LightSource[CL].constantAttenuation+(lightDir.x*lightDir.x+lightDir.y*lightDir.y+lightDir.z*lightDir.z)*gl_LightSource[CL].quadraticAttenuation);
            // normalize light dir
            vec3 L          = normalize(lightDir);
        #endif

    #if NORMAL_MAP==1
        vec3 lightVec;
        lightVec.x = dot(L, vsOutTangent);
        lightVec.y = dot(L, vsOutBinormal);
        lightVec.z = dot(L, N);

        // float lambertTerm = dot(N,L);
        float lambertTerm = max( dot(lightVec,bump), 0.0);  

        float side = dot(L,N);
    #else   // of normal map
        float lambertTerm = dot(L,N);
        float side = lambertTerm;
    #endif  // of no normal map

        diffuse += gl_LightSource[CL].ambient.xyz*intensity;

        #if NORMAL_MAP==1
            float scale;

            if ( side<0.0 )
            {           
                scale = clamp(1.0+side*5.0,0.0,1.0);
                float da = dot(vec3(0.0,0.0,1.0),bump);
                diffuse += vec3(da,da,da)*0.01;
            }
            else
                scale = 1.0;
        #endif

        if(lambertTerm > 0.0)
        {
            #if NORMAL_MAP==1
                diffuse += gl_LightSource[CL].diffuse.xyz * gl_FrontMaterial.diffuse.xyz * lambertTerm * intensity * scale; 
            #else
...