source: data/data_extern/programs/GLSL150/instancingVp.glsl @ 12202

#version 150

in vec4 position;
in vec3 normal;
in vec4 uv0;
in float uv1;

out vec4 oColor_0;
#if SHADOW_CASTER
#else
out vec2 oTexcoord2_0;
#endif

uniform mat4x3 worldMatrix3x4Array[80];
uniform mat4 viewProjectionMatrix;
uniform vec4 lightPos;
uniform vec4 ambient;
uniform vec4 lightDiffuseColour;

void main()
{
#if SHADOW_CASTER
        // transform by indexed matrix
        vec4 transformedPos = vec4((worldMatrix3x4Array[int(uv1)] * position).xyz, 1.0);

        // view / projection
        gl_Position = viewProjectionMatrix * transformedPos;
        
        oColor_0 = ambient;
#else
        // transform by indexed matrix
        vec4 transformedPos = vec4((worldMatrix3x4Array[int(uv1)] * position).xyz, 1.0);
        
        // view / projection
        gl_Position = viewProjectionMatrix * transformedPos;
        oTexcoord2_0 = uv0.xy;

        vec3 norm = mat3(worldMatrix3x4Array[int(uv1)]) * normal;
        
        vec3 lightDir =         normalize(
                lightPos.xyz -  (transformedPos.xyz * lightPos.w));

        oColor_0 = ambient + clamp(dot(lightDir, norm), 0.0, 1.0) * lightDiffuseColour;
#endif
}