private void SetColorAttribute(GraphicsContext ctx)
{
if (ArrayBuffer != null)
{
ArrayBufferObjectBase.IArraySection arraySection = ArrayBuffer.GetArraySection(ArraySectionIndex);
int arrayLength = (int)ArrayBufferItem.GetArrayLength(arraySection.ItemType);
int arrayStride = arraySection.Stride.ToInt32();
// Bind the array buffer
ArrayBuffer.Bind(ctx);
// Set vertex pointer
Gl.ColorPointer(
arrayLength, ArrayBufferItem.GetColorPointerType(arraySection.ItemType), arrayStride,
arraySection.Pointer
);
// Enable vertex attribute
Gl.EnableClientState(EnableCap.ColorArray);
}
else
{
Gl.DisableClientState(EnableCap.ColorArray);
}
}