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Is there any way to adjust the darkness of the Vray dirt in Vray3? In older versions piping it into an output would make it darker but I can't see to get that working in Vray 3. Am I just doing something wrong? I've tried both putting the vray dirt in the output and putting an output in occluded color for the dirt. Is this part of what's happening with the reflection mattes as well? If so, I get it and it's cool. If not, where am I going wrong?
Also, I think I used to be able to get vraydirt to affect alphas on matte objects but I can't seem to do that on Vray3. I have a situation where I'm lighting a scene with just the environment color and using an HDRI for reflections. Because of the nature of the project it doesn't use actual lights. Dome light didn't solve the problem though I thought it might, so I don't think I really understand the real problem.
The real problem is that my matte shadows around the feet of the character are very light because of my weird setup, and I need to find a decent way to darken them up without having to paint in post due to the sheer volume of images. The problem I'm sure is that they aren't casted shadows but more like GI shadows, which I think is causing the pain.
What I tried (and failed) to do was put the ground material in a wrapper, set the matte up (-1, affect shadows, affect alpha, matte object) and then try to use a vray dirt in the diffuse to help boost the ground contrast near the objects/characters against the white background a bit as they are too light. I'd hoped that the AO would be added to the alpha of the ground matte, but so far I can't seem to make it happen. I may have tunnel vision after spending too many hours trying to get it to jive. I've also tried the AO in the GI settings but it seems to ignore matte objects.
I'd think there would be an easy way to do this but for the life of me I can't seem to nail it down. I attached a screen for reference. In the end I just want darker AO and more of it to affect my alpha. I love what's going on there, I just need more of it.
Thanks for any help. Any ideas would be greatly appreciated.
EDIT: I did figure out how to increase the darkness of the Vray Dirt effect by using a VrayCompTex and multiplying 2 dirts together. Worse case scenario I can get by with just this Comptex AO if I could get it to affect the alpha of the matte somehow. Sadly it's going into photoshop so I don't have a node based alpha network in post. Maybe some sort of operations on an ao and the matte?
Also, I think I used to be able to get vraydirt to affect alphas on matte objects but I can't seem to do that on Vray3. I have a situation where I'm lighting a scene with just the environment color and using an HDRI for reflections. Because of the nature of the project it doesn't use actual lights. Dome light didn't solve the problem though I thought it might, so I don't think I really understand the real problem.
The real problem is that my matte shadows around the feet of the character are very light because of my weird setup, and I need to find a decent way to darken them up without having to paint in post due to the sheer volume of images. The problem I'm sure is that they aren't casted shadows but more like GI shadows, which I think is causing the pain.
What I tried (and failed) to do was put the ground material in a wrapper, set the matte up (-1, affect shadows, affect alpha, matte object) and then try to use a vray dirt in the diffuse to help boost the ground contrast near the objects/characters against the white background a bit as they are too light. I'd hoped that the AO would be added to the alpha of the ground matte, but so far I can't seem to make it happen. I may have tunnel vision after spending too many hours trying to get it to jive. I've also tried the AO in the GI settings but it seems to ignore matte objects.
I'd think there would be an easy way to do this but for the life of me I can't seem to nail it down. I attached a screen for reference. In the end I just want darker AO and more of it to affect my alpha. I love what's going on there, I just need more of it.
Thanks for any help. Any ideas would be greatly appreciated.
EDIT: I did figure out how to increase the darkness of the Vray Dirt effect by using a VrayCompTex and multiplying 2 dirts together. Worse case scenario I can get by with just this Comptex AO if I could get it to affect the alpha of the matte somehow. Sadly it's going into photoshop so I don't have a node based alpha network in post. Maybe some sort of operations on an ao and the matte?
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