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#version 330
// This color comes in from the output of the vertex shader stage. The current
// fragment will lie somewhere within a triangle. So, the vec4 that is passed
// in here is actually an interpolated version of the colors output by the 3
// vertex shader programs run for the 3 vertices of the triangle.
in vec4 color;
// All fragment shaders are required to output a vec4 color.
out vec4 final_color;
void main() {
// For a Gouraud shader, there is nothing more to compute at this stage. We
// just output the input color.
final_color = color;
}
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