Antaran opened this issue on Oct 30, 2011 · 5 posts
Antaran posted Sun, 30 October 2011 at 3:59 PM
Hi all,
I have a scene and I introduced a spot to it with a an effect added on (cone) and I want to render it using the multi-pass rendering, so that I can isolate the effect on a separate layer. I render the image and I get all the usual layes EXCEPT the Post Effect. No matter whether I render it as embedded into the PSD file or tell it to render externally into a special file. If I try to render externally, the resulting file never gets created. The internal rendeing (embedded) is also missing that layer, so the composited layes are missing the cone effect even though the "image" layer and the preview that I get do have it! This is beyond weird and I've never seen it happen before...
What could be wrong? (Carrara 8.1.1 build 12 64bit)
I'm not sure whether I had upgraded it since the last time I used the Post effect passes, but I definitely had used the Post Effect layes successfully in the 8.1 versions before. Right now the post just doesn't get rendered in any scenes... What to do?
Thank you!
jt411 posted Mon, 31 October 2011 at 10:22 AM
If you're talking about the standard cone effect on a spotlight; Carrara doesn't consider it a post-effect. It's rendered in real-time, so it won't show up in it's own pass.
Antaran posted Mon, 31 October 2011 at 11:11 AM
Is there a layer where the cone should show up? Because the effect doen't show in any other passes either...
Also, normally when I request a layer that doesn't have anything on it (like caustics, for example, when I have the feature off), it just renders as all black, but this time the post effect layer just doesn't get created no matter what...
jt411 posted Mon, 31 October 2011 at 12:23 PM
Carrara won't create the layer because the light cone isn't a post effect. It should still show up in your beauty pass at least. (All the passes together)
If it's not, we may be looking at a bug.
One option is to render the light by itself with the alpha channel enabled and the backdrop set to pure black. That would put the cone effect on it's own layer for compositing, but you may have to mask off any objects that appear in front of the cone.
JT
Antaran posted Mon, 31 October 2011 at 1:15 PM
That's a great idea! I didn't think of that. Thank you! I'll do that.