[goff]

1 I would like to see the light objects extended:
i) to set colours of the spec,amb,diffuse... colours; (you could attach a material to the light, though this would waste some parameters such as shininess)
ii) make directional light properties, with all OpenGL dropoff parameters
iii) add optional geometry to represent the light 'bulb/candleflame/candelabra/wall light...' - this would of course automatically move with the light source.

2 I would like to see reflection coefficient added to materials (mainly useful for Povray, but could be useful in OpenSceneGraph and modern rendering engines for example). There are probably other parameters (jitter..) relevant to ray tracing too, but I am not expert in these.

GeoffM