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Rendering Shadow Channel produces white output.
Posted: Tue Mar 03, 2009 5:32 pm
I'm trying to render out the tree shadow you can see here:
However, all I'm getting if I render out the shadow channel is a completely white render.
Posted: Tue Mar 03, 2009 6:03 pm
Open the (grass) material you have applied to the ground plane in the plugin's material editor, click the top node in the layers tree to show the main material parameters page, and check the Shadow checkbox under Rendering Options. Only materials with this option enabled will receive shadows when rendering the shadow channel.
Posted: Tue Mar 03, 2009 6:05 pm
Thanks JD !!!!
Posted: Tue Mar 03, 2009 7:22 pm
Thanks for the help JD.
Jsut as a follow up is it possible to output to a multilayered tif file in one render? Or has each layer got to be rendered out seperately?
Posted: Tue Mar 03, 2009 7:41 pm
No problem, and no, rendering out to separate images for each channel is just how Maxwell works. They're all rendered at the same time though, so the only real difference is that you have to comp them together however it works best for each particular scenario.
Posted: Wed Mar 04, 2009 9:52 am
hmmm...Overnight render fails on the shadow pass! Shi&!!
Here's the RGB with clear tree shadows:
And here's the shadow pass with no tree shadows:
Can anyone help with this? I haven't a clue what's wrong.
Posted: Wed Mar 04, 2009 4:21 pm
It'd be very welcome if someone could comment on this...nudge nudge...
Posted: Wed Mar 04, 2009 4:24 pm
I don't use the feature much, so I can really only tell you how to turn it on - you might want to re-post it as a more general shadow-channel related question in the Maxwell Render section of the forum.
Posted: Wed Mar 04, 2009 5:32 pm
Willdo, thanks for the help.
Posted: Wed Mar 04, 2009 5:56 pm
For what it's worth, I tried to duplicate what I see in your images (trees, grass plane, sun, etc.) , and the shadow channel is working fine, so maybe you also want to include some information about how you're building the materials - there could be some clues there.