simpleColor.vert Example File

simplecustommaterial/shaders/gl3/simpleColor.vert
 #version 150 core

 in vec3 vertexPosition;
 out vec3 worldPosition;
 uniform mat4 modelMatrix;
 uniform mat4 mvp;

 void main()
 {
     // Transform position, normal, and tangent to world coords
     worldPosition = vec3(modelMatrix * vec4(vertexPosition, 1.0));

     // Calculate vertex position in clip coordinates
     gl_Position = mvp * vec4(worldPosition, 1.0);
 }