Originally posted by sv
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Render to elements transparency? (Vray 1.5)
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Lars Bjorstrup
http://www.xlars.dk
Vray 1.5 Advanced R3, 3ds max 8 SP3, Win XP2, 2 x Dual Intel Xeon 2.66GHz, 2Gb RAM, 3DLabs Wildcat VP990 Pro 512Mb
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Thank you very much joconnell for your thoughts and explanations (I will read them over some more times for reference later).
In my case it is required that:
- Objects are transparent (but not glass as it would indicate from my test above). Objects have a very thin shell (shell modifier) so the background is not turned upside down or destorted that much.
- Objects needs to be placed onto already finished photographic background images. So I actually have no real 3d environment. Images are fixed ie. can not be changed in apperance or size. so I use them for background (screen mapped), lighting and reflection (spherical or cylendrical mapped) but also screen map them for the refraction override channel to appear correctly when seen through the transparent objects.
- I also need one or more of the objects as "generic objects" to be used for 2d compositing with Photoshop. This is where the Alpha channel would come in handy I thought. Have to work out some solution for that ... main problem now is that the (by the client accepted) material, similar to the one shown in my examples.. does not work for some reason. Will have to change the material to make it give me a Alpha or create a usable Alpha another way.
Thanks for your input - I will press onLars Bjorstrup
http://www.xlars.dk
Vray 1.5 Advanced R3, 3ds max 8 SP3, Win XP2, 2 x Dual Intel Xeon 2.66GHz, 2Gb RAM, 3DLabs Wildcat VP990 Pro 512Mb
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Originally posted by RErenderVlado - Looks like something odd with the fog/alpha in the alpha element, semi transparent alpha is rendering in the inverse color of the fog.
Best regards,
VladoI only act like I know everything, Rogers.
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Originally posted by vladoWhat is typically referred to as "alpha" is just the white complement of transparency. The alpha is actually a color, not a single floating-point value, as you can see for objects with colored transparency.
Best regards,
VladoLars Bjorstrup
http://www.xlars.dk
Vray 1.5 Advanced R3, 3ds max 8 SP3, Win XP2, 2 x Dual Intel Xeon 2.66GHz, 2Gb RAM, 3DLabs Wildcat VP990 Pro 512Mb
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Originally posted by trixianThought I'd mention that the affect alpha feature doesn't work for glossy refractions, and you seem to have used those on your first example.Lars Bjorstrup
http://www.xlars.dk
Vray 1.5 Advanced R3, 3ds max 8 SP3, Win XP2, 2 x Dual Intel Xeon 2.66GHz, 2Gb RAM, 3DLabs Wildcat VP990 Pro 512Mb
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Originally posted by XlarsOriginally posted by trixianThought I'd mention that the affect alpha feature doesn't work for glossy refractions, and you seem to have used those on your first example.Signing out,
Christian
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