marco@hprnd.HP.COM (Marco Gonzalez) (09/06/89)
Hola Amigos! I'm working with Turbo Silver 3.0 trying to replace Sculpt 4D for my animation needs (you know, Sculpt4D is sooooooooo sloooow!). But I've had no luck in cloning the materials of Scuplt 4D on Turbo Silver (you know, Turbo Silver has soooo many settings and attributes!). My questions is: Can somebody working with Turbo Silver tell me how to get materials Glossy, Mirror, Metal and Glass??. I specially have problems with Glass, it simply doesn't come a bit close to what Sculpt 4D does with this material ((It looks soooo realistic ); Turbo Silver seems to distort the objects behind or onside glass balls beyond recognition!. I will aprecciate any clues. AdvanceAdvance d a v v a Thanks d n A c e eAdvanceAdvanc # Insert Standar disclaimers here. Marco Gonzalez.
prem@geomag.fsu.edu (Prem Subrahmanyam) (09/07/89)
In article <2550011@hprnd.HP.COM> marco@hprnd.HP.COM (Marco Gonzalez) writes: > My questions is: Can somebody working with Turbo Silver tell me how >to get materials Glossy, Mirror, Metal and Glass??. I specially have problems >with Glass, it simply doesn't come a bit close to what Sculpt 4D does with >this material ((It looks soooo realistic ); Turbo Silver seems to distort >the objects behind or onside glass balls beyond recognition!. > I will aprecciate any clues. > Well, I don't know much about Turbo Silver, but from what I've heard, it's supposed to mimic refractive distortion. The amount of distortion is based on the object's index of refraction, which is probably allowed to be set by you....to get glass that does no distortion, set the index (if it's allowed) to one. This will cause a ray passing from air (index one) through an object of index one to not be distorted. Again, I don't know if this is user adjustable or not in Silver. I know the public domain ray-tracers (QRT and DBW_Render) will allow user adjustable indices of refraction. As a side note, if Sculpt was not showing the distortion, then it is actually the one that is soooooooooooo unrealistic. Try placing a glass ball in front of an object and see if there's not distortion taking place....hint, there is. Again, I'm not sure if Silver will allow you to do this or not (it does put a lot of power into the user's hand, as an index of zero will crash the program (cause a div by zero error due to the equation used to bend the rays passing through the object)). Good luck in finding the index..... ---Prem Subrahmanyam p.s. look for an enhanced version of DBW 1.0 in the next month or two, it should crunch a picture faster than anything around. used to "bend