Forum: Bryce


Subject: Transluscence in Bryce?

alvinylaya opened this issue on Sep 04, 2004 ยท 11 posts


alvinylaya posted Sat, 04 September 2004 at 10:37 PM

Is transluscence in Bryce possible? Can you cast shadows on the transluscent object without making it transparent? I've tried it using a combination of blurry transmissions and increasing ambience but for some reason I just can't get it right. For example, a curtain.

Kemal posted Sun, 05 September 2004 at 1:00 AM

Im sure Ornlu can help with this, he did some experimenting with it, check his gallery, he did a lamp some time ago, I think ! :)


danamo posted Sun, 05 September 2004 at 2:34 AM

AgentSmith has experimented with this, if I recall correctly. He made an oriental lantern and I think it's still in Freebies. I guess it all depends on the effect you are looking for. I don't know this, but I'm assuming the next full-ver. of Bryce will make stuff like this a lot easier. I can hardly wait!


Erlik posted Sun, 05 September 2004 at 6:50 AM

Isn't translucence a transparency? Like five percent or so. Otherwise it would be completely opaque and you couldn't see a thing through it.

-- erlik


PJF posted Sun, 05 September 2004 at 6:53 AM

Attached Link: http://www.renderosity.com/messages.ez?Form.ShowMessage=1553818

In this thread, Ornlu describes how to fake it using texture maps in the ambient channel; I describe how to do it using the Bryce render engine.

AgentSmith posted Sun, 05 September 2004 at 7:37 AM

Yeah, the KIND of transluscency your talking about is best seen in the light colored wax of a burning candle. (Sub Surface Scattering) You wouldn't truly need to that effect to properly show off curtains, although it would be nice. ;o) I think the pics in that post is the closest I've seen to anyone faking it in Bryce. (at that link PJF gives). AgentSmith

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TheBryster posted Sun, 05 September 2004 at 8:06 AM

Translucent: transmitting light but causing sufficient diffusion to eliminate perception of distinct images. Compare - transparent, opaque.

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Erlik posted Sun, 05 September 2004 at 11:54 AM

Well, this is the best on curtains I could come up with on a short notice. If you put a differently coloured tex in Trnasparency, you'll get a darker material. If you put the bead into zero postion on Transparent, the material will be too light if the colour is white and too dark if it's black. You can experiment. Increased refraction darkens the material. Yes, you can see there's a figure behind the curtain, but further experimentation with values of gray in Transparency might yield better results. Of course, the darker the more transparent.

-- erlik


alvinylaya posted Sun, 05 September 2004 at 2:38 PM

Thanks for the replies guys! I'm gonna experiment on this a bit more, at least I know it's possible to simulate it. -alvin


shadowdragonlord posted Sun, 05 September 2004 at 9:13 PM

Anything's possible! Remember, even the best 3D applications are ALL based off of workarounds. 3D graphics in general is a workaround, so that one doesn't have to spend time and money on "real" props and actors. There's no "fake" techniques, since ALL of it is proto-real, to begin with!


jedswindells posted Mon, 06 September 2004 at 8:52 AM

http://hometown.aol.co.uk/jedswindells/page11.html Is this closer to what you want?IM if you would like me to post the texture.