|
|
Vray and Alpha channel??
About Truespace Archives
These pages are a copy of the official truespace forums prior to their removal somewhere around 2011.
They are retained here for archive purposes only.
Vray and Alpha channel?? // Archive: Tech Forum
Post by prodigy // May 11, 2007, 5:55pm
|
prodigy
Total Posts: 3029
|
Vray doesnt have alpha channel?? on png??:( |
Post by parva // May 11, 2007, 9:44pm
|
parva
Total Posts: 822
|
Mmh, no problem here.
... but an invert function for the alpha channel is needed.
I get always the wrong transparency :D |
Post by Jack Edwards // May 11, 2007, 10:56pm
|
Jack Edwards
Total Posts: 4062
|
Good idea Parva! In fact I was thinking that an invert checkbox would be cool for all the mapped shader parameters. Since it'd also be nice to be able to use the a map in reflectance and an inverse of that map in diffuse.
It's not that big a deal since you can create an inverted image in a paint program and save it out as a new file, but replacing the work and extra file with one click would get a vote from me. ;)
-Jack. |
Post by Jack Edwards // May 11, 2007, 11:00pm
|
Jack Edwards
Total Posts: 4062
|
Even better would be the ability to drop/link the bitmap output from real-time shader nodes directly to the input bitmaps for the V-Ray mapped shaders.
We could then use/chain procedural shaders and filters like ramps, checkers, blend, invert and things to create the maps just like in Blender and Maya.
-Jack. |
Post by parva // May 11, 2007, 11:11pm
|
parva
Total Posts: 822
|
agree Jack.
Unfortunatly the vray/non realtime stuff is hidden :(
invert should be simple because there is still a saturation brick which inverts value. Yes clamp and color control from textures directly in tS would be great, I use that in 3ds often because I need only one texture for different tasks and no worry to destroy the texture in any case. |
Post by xmanflash // May 12, 2007, 1:08am
|
xmanflash
Total Posts: 335
|
Good idea Parva! In fact I was thinking that an invert checkbox would be cool for all the mapped shader parameters. Since it'd also be nice to be able to use the a map in reflectance and an inverse of that map in diffuse.
It's not that big a deal since you can create an inverted image in a paint program and save it out as a new file, but replacing the work and extra file with one click would get a vote from me. ;)
-Jack.
I just had to do all that, except that a transparency map of clouds around the earth worked totally differently in Vray than it did in the other renderers. So yes to tick box, and a big "whats up" with the texture support between renderers.. |
Post by prodigy // May 12, 2007, 3:25am
|
prodigy
Total Posts: 3029
|
Sorry guys.. but i mean on "Save to file"... or "Vray Render Animation... "
You cant save the alpha channel on any file format inside the workspace.. :( |
Post by Jack Edwards // May 12, 2007, 3:32am
|
Jack Edwards
Total Posts: 4062
|
Interesting. Is this a change from VRay in 7.1?
-Jack. |
Post by prodigy // May 12, 2007, 3:43am
|
prodigy
Total Posts: 3029
|
In Model yes, you can save your scene with the 32bits alpha.. but not inside the workspace.. |
Post by Emmanuel // May 12, 2007, 4:25am
|
Emmanuel
Total Posts: 439
|
In Workspace, the VRay Render View can be saved to disk in PNG, JPG, BMP and HDR formats only. And yes, the PNG format is a 8 bits one : no transparency.
In other words, if you need transparency information on your rendering, you must render your V-Ray scene in Modeler side. |
|
