public GLVertexSignature(GLAttribute[] attributes)
{
Attributes = attributes.OrderBy(e => e.Location).ToArray();
}
private static GLAttribute[] ExtractAttributes(int programHandle)
{
int attributeCount;
GL.GetProgram(programHandle, GetProgramParameterName.ActiveAttributes, out attributeCount);
GLAttribute[] attributes = new GLAttribute[attributeCount];
for (int i = 0; i < attributeCount; ++i)
{
int size;
ActiveAttribType type;
string name = GL.GetActiveAttrib(programHandle, i, out size, out type);
int location = GL.GetAttribLocation(programHandle, name);
attributes[i] = new GLAttribute(type, location, name);
}
return attributes;
}
