Does it sound possible and/or useful to anybody here (excepted me)?
Alpha render?
Alpha render?
..not an essential one, but should be useful for some of us to have an alpha map optional output, showing in black the plane sky areas and in white anything else!
Does it sound possible and/or useful to anybody here (excepted me)?
Does it sound possible and/or useful to anybody here (excepted me)?
He means, since you model your scene in some 3d app (I'm assuming you don't model in indigo's xml... 
) you can render the scene in that program, with alpha output, and just use that. I dunno which program you use to model, but it shouldn't be too hard to figure out.
) you can render the scene in that program, with alpha output, and just use that. I dunno which program you use to model, but it shouldn't be too hard to figure out.From uncyclopedia.org, on "Elephant's Dream":
"The choice of the title is highly significant, because while the movie does not feature any elephants nor dreams, no one understands what happens anyway."
"The choice of the title is highly significant, because while the movie does not feature any elephants nor dreams, no one understands what happens anyway."
You can do an alpha render with SU (kind of..)Pibuz wrote:..sorry..
i didn't understand perhaps because i use SketchUp as a modeler, so i can't do any rendering of the scene with alpha map!
Sorry i didn't get it at first glance..
1) Change your background color to 100% white
2) Change your front face and backface color to 100% black
3) Switch to monochrome face style
4) Export the image and edit it (invert) if required
There is a way to render alpha using SkIndigo monochrome mode too:
1) Change your background color to 100% white
2) Create a 100% black diffuse material
3) Change your render settings environment to 'SketchUp Background Color'
4) Switch to monochrome face style
5) Render the scene - hint: use camera tonemapping to get a pure-white background
6) When asked what material to use for monochrome render, select the 100% black material
7) You might have to do some post image editing of your render (contrast, invert) to get the final alpha image you want.
-
v_mulligan
- Posts: 126
- Joined: Wed Nov 28, 2007 9:16 am
It's an annoying workaround -- especially with scenes with a lot of geometry, that take a while to render. Also, it can be hard to match the depth of field settings in Indigo and in the renderer used to make the alpha channel -- particularly if the other renderer doesn't support non-circular apertures. The transparency of atmospheric effects (smoke, fog, etc.) would also be impossible to reproduce properly with another renderer. I really have to go with Pibuz on this one; any professional renderer should have an alpha output option, and Indigo is no exception.
Who is online
Users browsing this forum: No registered users and 6 guests