Background image support

jnom · Post by **jnom** » Fri Dec 23, 2011 8:15 am

http://www.kraytracing.com/joomla/forum ... =viewtopic

Possible in kray 2.4?

So we can hide hdr lighting with a black image and get clean alpha.

Post by **jure** » Fri Dec 23, 2011 1:25 pm

Definitely not in 2.4 since it was released already

.

We have it on to do list, but i don't think it's gonna make it in before 3.0. I think you can work around this problem with black poly or something like that.

jnom · Post by **jnom** » Fri Dec 23, 2011 5:26 pm

jure wrote:Definitely not in 2.4 since it was released already .

We have it on to do list, but i don't think it's gonna make it in before 3.0. I think you can work around this problem with black poly or something like that.

I did tried that. I used a huge black poly behind all objects that faces camera all the time. Its workable except it was affecting the lighting and reflections on objects.
Is there a command I'm missing that could possibly make the black poly work like a bgimage composite?

Janusz Biela · Post by **Janusz Biela** » Fri Dec 23, 2011 7:20 pm

jnom wrote:
jure wrote:Definitely not in 2.4 since it was released already .

We have it on to do list, but i don't think it's gonna make it in before 3.0. I think you can work around this problem with black poly or something like that.
I did tried that. I used a huge black poly behind all objects that faces camera all the time. Its workable except it was affecting the lighting and reflections on objects.
Is there a command I'm missing that could possibly make the black poly work like a bgimage composite?

I think You should play with Refine Edge in Photoshop. This is POWERFUL tool.

Post by **jure** » Sat Dec 24, 2011 12:00 am

jnom wrote:
jure wrote:Definitely not in 2.4 since it was released already .

We have it on to do list, but i don't think it's gonna make it in before 3.0. I think you can work around this problem with black poly or something like that.
I did tried that. I used a huge black poly behind all objects that faces camera all the time. Its workable except it was affecting the lighting and reflections on objects.
Is there a command I'm missing that could possibly make the black poly work like a bgimage composite?

Set it to unseen by rays and gi but make it seen by camera and turn off cast/receive shadows + alpha constant black. That should work fine.

ideart · Post by **ideart** » Mon Dec 26, 2011 5:04 pm

jure wrote: ...
Set it to unseen by rays and gi but make it seen by camera and turn off cast/receive shadows + alpha constant black. That should work fine.

I use an inverted black sphere that surrounds the whole scene with the above recomended setup and works fine.

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