i am a programmer working on ray tracing, i just have one simple scene file that my ray tracer is rendering quite well ... as i mentioned that i am a programmer and a student and NOT a 3d modeller , hence i dont know how to write a scene or scene file, is there any link where i can get some good scenes ...?

i currently use following simple scene for my ray tracer:

Sphere 2.5 -1.5 -17.0 Material 255 255 0 0.5 0.75
Sphere 90 0 4 3 Material 0 128 128 .75 0.45
Sphere 30 2 28 4 Material 111 45 255 .75 0.65
AABB -25 -25 -60 -20 -20 -30 Material 5 250 0 0.5 0.45
AABB -40 -40 -80 -20 -20 -100 Material 89 21 134 0.5 0.9
AABB -30 -30 -70 -10 -10 -50 Material 89 21 134 0.5 0.6
Triangle -2 -2 -7 2 -2 -7 0 2 -7 Material 149 18 141 0.5 0.8
Triangle 9 9 14 9 2 14 3 10 -9 Material 194 108 201 0.5 1.0
Light 48 68 100 25 0 25
Light 14 0 -10 55 45 95
Origin 0 0 14
Target 2 1 -7

can i get some advanced scenes of similar format from some where ??