Hi, I'm looking for a basic lighting configuration for a solid modeller I'm building. I don't need anything elaborate; I just want to set a color and get reasonable shading. I followed the guidelines from http://www.opengl.org/wiki/How_lighting_works, but my scenes are left only black and white (http://funhdl.org/ball.jpg). Are there any specifics to the Haskell API to properly configure lighting? Here are the lighting commands I call during program init: position (Light 0) $= Vertex4 1 1 0 1 ambient (Light 0) $= Color4 0 0 0 1 diffuse (Light 0) $= Color4 1 1 1 1 specular (Light 0) $= Color4 1 1 1 1 lightModelAmbient $= Color4 0.2 0.2 0.2 1 lighting $= Enabled light (Light 0) $= Enabled colorMaterial $= Enabled colorMaterial $= Just (FrontAndBack, AmbientAndDiffuse) materialSpecular FrontAndBack $= Color4 1 1 1 1 materialEmission FrontAndBack $= Color4 0 0 0 1 During a frame redraw, the only lighting functions called are disabling and enabling lighting to draw the coordinate system. Any ideas or recommendations? BTW, I also raised this question to the opengl forum: http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=263558 -Tom