Re: New feature : Shadow Catcher
Posted: Sat Dec 15, 2012 10:16 am
Ahh thx for that info...i was going mad here! 
..
+1 for reflections..that would be soooo useful!
Nildo
..+1 for reflections..that would be soooo useful!
Nildo
OTOY Forums
Community Forums for OTOY Customers
https://render.otoy.com/forum/
New feature : Shadow Catcher
Page 5 of 6
Re: New feature : Shadow Catcher
Posted: Sat Dec 15, 2012 12:53 pm
I'm holding out for illumination catching, too.
Re: New feature : Shadow Catcher
Posted: Sat Dec 15, 2012 1:23 pm
I posted this in the 1.01 thread, but it seems no one from Otoy reacted, so I post this question here aswell..
Shadow catcher matte is behaving a little weird. The diffuse color gets blended with the shadow. So if the diffuse material is red for example, you get black shadows with red fringe around. To avoid this you turn the diffuse black, but then the shadow gets mixed with black, and is twice as strong as it should be, so the solution is to then make the diffuse material also with 50% opacity.. But shouldn't the matte just be showing the shadow and nothing else, disregarding the diffuse color? I see that it might be handy some time to mix the diffuse color in there, but a shadow only switch would be nice next to the matte
Shadow catcher matte is behaving a little weird. The diffuse color gets blended with the shadow. So if the diffuse material is red for example, you get black shadows with red fringe around. To avoid this you turn the diffuse black, but then the shadow gets mixed with black, and is twice as strong as it should be, so the solution is to then make the diffuse material also with 50% opacity.. But shouldn't the matte just be showing the shadow and nothing else, disregarding the diffuse color? I see that it might be handy some time to mix the diffuse color in there, but a shadow only switch would be nice next to the matte
Re: New feature : Shadow Catcher
Posted: Sun Dec 16, 2012 6:04 pm
Peter, I know when this happens.
Remove all mesh emitting diffuse materials from the obj and the problem will be gone.
This seems to be a little bug.
The new matte material option doesn't like mesh lights.
Remove all mesh emitting diffuse materials from the obj and the problem will be gone.
This seems to be a little bug.
The new matte material option doesn't like mesh lights.
Re: New feature : Shadow Catcher
Posted: Tue Dec 18, 2012 9:27 am
Hi all,
Really great stuff !!! One question, how split the shadows alone without see the model that drop shadows ?
For bypass the problem of colored shadows with mesh light, use the result as mask for compositing and not at just an overlay layer. give more control for ajusting the bg plate. Or use a camera mapping to project the data from plate on the plane card that recived shadows, to have the GI bleeding and shadows cast on the plate (need little colorimetric adjustement in comp to finsh the mix, so need ID material too).
Matt
Really great stuff !!! One question, how split the shadows alone without see the model that drop shadows ?
For bypass the problem of colored shadows with mesh light, use the result as mask for compositing and not at just an overlay layer. give more control for ajusting the bg plate. Or use a camera mapping to project the data from plate on the plane card that recived shadows, to have the GI bleeding and shadows cast on the plate (need little colorimetric adjustement in comp to finsh the mix, so need ID material too).
Matt
Re: New feature : Shadow Catcher
Posted: Tue Dec 18, 2012 1:22 pm
Hi MattRM, you need to switch of alphashadows and then opacity on your model goes to 0. You still will have the shadows remain.
Re: New feature : Shadow Catcher
Posted: Tue Dec 18, 2012 2:29 pm
Thank you for your answer 
Re: New feature : Shadow Catcher
Posted: Wed Dec 19, 2012 1:01 am
Great new feature, one which I've been waiting for eagerly
Question, does the shadow catcher material also have options for matte objects? This is as important for compositing.
Thanks
Question, does the shadow catcher material also have options for matte objects? This is as important for compositing.
Thanks
Re: New feature : Shadow Catcher
Posted: Wed Dec 19, 2012 2:29 pm
I just installed the latest 1.0 version, but the " matte" option kavorka mentioned is nowhere to be found!
Can anyone enlighten me?
Greets
Can anyone enlighten me?
Greets
Re: New feature : Shadow Catcher
Posted: Wed Dec 19, 2012 3:25 pm
Look at the very bottom of a diffuse materialwhersmy wrote:I just installed the latest 1.0 version, but the " matte" option karba mentioned is nowhere to be found!
Can anyone enlighten me?
Greets