uniform mat4 ModelMatrix;
uniform mat4 RSMMatrix;

uniform mat4 TextureMatrix =
    mat4(1., 0., 0., 0.,
         0., 1., 0., 0.,
         0., 0., 1., 0.,
         0., 0., 0., 1.);

#if __VERSION__ >= 330
layout(location = 0) in vec3 Position;
layout(location = 1) in vec3 Normal;
layout(location = 2) in vec4 Color;
layout(location = 3) in vec2 Texcoord;
layout(location = 4) in vec2 SecondTexcoord;
#else
in vec3 Position;
in vec3 Normal;
in vec4 Color;
in vec2 Texcoord;
in vec2 SecondTexcoord;
#endif

out vec3 nor;
out vec2 uv;
out vec2 uv_bis;
out vec4 color;


void main(void)
{
    mat4 ModelViewProjectionMatrix = RSMMatrix * ModelMatrix;
    mat4 TransposeInverseModel = transpose(inverse(ModelMatrix));
    gl_Position = ModelViewProjectionMatrix * vec4(Position, 1.);
    nor = (TransposeInverseModel * vec4(Normal, 0.)).xyz;
    uv = (TextureMatrix * vec4(Texcoord, 1., 1.)).xy;
    uv_bis = SecondTexcoord;
    color = Color.zyxw;
}