Le 03/04/2018 à 19:04, kurtz le pirate a écrit :

Sorry about that clumsy subject et thank you for your comments.

Some points :
  - yes, the torus shape is an isosurface.
  - the floor currently uses
	finish {
		ambient 0.00
		emission 0.10
		diffuse 0.80
		reflection { 0.05 fresnel on }
		specular 0.90
		roughness 1/20
		}
	normal {
		wrinkles 0.40
		scale 2
		}
- a wooden surface and even better isowood surface, i had already 
thought about it...
- no radiosity but area lights

- sharing the source code ? yes, great idea Sven.
I'll work on my code a little to make it "presentable."

Here, a new test with photon. Same floor :(

See you soon

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