Initial commit

resources/shaders/vertex/solid-phong.vert

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+#version 330
+layout(location = 0) in vec3 aPosition;
+layout(location = 1) in vec3 aNormal;
+
+// Solid color input from application
+uniform vec3 uColor;
+
+// Color to output to fragment shader
+out vec4 vColor;
+out vec3 vPosition;
+out vec3 vNormal;
+
+// Additional uniform to allow CPU to provide mat3(transpose(inverse(uModel)))
+// + Makes a big difference in quality of diffuse shading
+// + QMatrix4x4.normalMatrix() returns a mat3 that can be used as a uniform
+uniform mat3 uModelInverseTransposed;
+// Model View Projection matrix found by P * V * M
+uniform mat4 uModel;
+uniform mat4 uView;
+uniform mat4 uProjection;
+
+void main()
+{
+  mat4 mvp = uProjection * uView * uModel;
+
+  gl_Position = mvp * vec4(aPosition, 1.0);
+
+  vPosition = vec3(uModel * vec4(aPosition, 1.0f));
+  vColor = vec4(uColor, 1.0f);
+
+  vNormal = uModelInverseTransposed * aNormal;
+  //  vNormal = aNormal; // This is possible without the additional uniform
+  // Or you could find this on the GPU using the uModel matrix
+  //  vNormal = mat3(transpose(inverse(uModel))) * aNormal;
+}