PDA

View Full Version : How do I change the colour of a shadow pass


waigy
01-10-2010, 08:48 PM
Hi

I'm compositing a 3d motorbike model into a jpg background image in photoshop cs4.
I've made a shadow pass in Maxwell render, but it's not the colour I need to match the other shadows in the background.
Shadow pass is grey the jpeg shadows are a dull green.
How can I change the colour of the whole shadow including the pixels around the edge where it gradually fades to white, but still have it gradually fading to white.
The best I've managed is just to select the outline of the shadow (as accurately as possible), fill that area with one solid colour of green then blur the edge later.
But that defeats the purpose of having an accurate shadow in the first place.

Here's the shadow map :
http://www.craighood.com/KZX2010-24_shadow.PNG


Here's the background image :

http://www.craighood.com/aye%20040.jpg

waigy
01-11-2010, 01:36 AM
I got the solution in the photoshop forum (wasn't sure what forum to ask this in).

http://forums.cgsociety.org/showthread.php?p=6291123#post6291123

CGTalk Moderation
01-11-2010, 01:36 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.