27 lines
837 B
GLSL
27 lines
837 B
GLSL
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#version 330
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layout(location = 0) in vec3 aPosition;
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layout(location = 1) in vec3 aNormal;
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// Solid color input from application
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// Color to output to fragment shader
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out vec3 vNormal;
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// Model View Projection matrix found by P * V * M
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//uniform mat3 uModelInverseTransposed;
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uniform mat4 uModel;
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uniform mat4 uView;
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uniform mat4 uProjection;
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void main()
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{
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gl_Position = uProjection * uView * uModel * vec4(aPosition, 1.0);
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// This isn't a shader we plan to use heavily, it's useful for testing normals
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// + We can see what the value of normals are on the object based on color
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vNormal = mat3(transpose(inverse(uModel))) * aNormal;
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// vNormal = uModelInverseTransposed * aNormal;
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// vNormal = aNormal; // This is possible without the additional uniform
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// Or you could find this on the GPU using the uModel matrix
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}
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