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#version 330
// Input vertex attributes
in vec3 vertexPosition;
in vec2 vertexTexCoord;
in vec3 vertexNormal;
//in vec4 vertexColor; // Not required
in mat4 instanceTransform;
// Input uniform values
uniform mat4 mvp;
uniform mat4 matNormal;
// Output vertex attributes (to fragment shader)
out vec3 fragPosition;
out vec2 fragTexCoord;
out vec4 fragColor;
out vec3 fragNormal;
// NOTE: Add here your custom variables
void main()
{
// Compute MVP for current instance
mat4 mvpi = mvp*instanceTransform;
// Send vertex attributes to fragment shader
fragPosition = vec3(mvpi*vec4(vertexPosition, 1.0));
fragTexCoord = vertexTexCoord;
//fragColor = vertexColor;
fragNormal = normalize(vec3(matNormal*vec4(vertexNormal, 1.0)));
// Calculate final vertex position
gl_Position = mvpi*vec4(vertexPosition, 1.0);
}
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