Hello everyone
I'm almost finished with the modeling part of my latest personal project, and it' time to finally use Corona for the first time :) (in a meaningful way)
I've set up this scene to test materials for vegetation and lightning.
Question 1For materials i basically (and shamelessly) copied Adanmqs technique from this thread
https://forum.corona-renderer.com/index.php/topic,4867.0.htmlBut i need more eyes and constructive criticism on how to make my materials better (they are still cartoony). Part of the issue is that i need a walnut tree, and these trees look yellowish and diseased even in the middle of summer. So i created an oak tree to have as a reference (whit which i'm also not completely satisfied). In images bellow oaks are on the left, walnuts on the right.
Another thing i wanted to test are different sky models. Here they are:
http://i.imgur.com/OrWfXrg.jpghttp://i.imgur.com/Q8l7E7W.jpgHere is the material for walnut leaves:
https://i.imgur.com/CQCxE1F.jpgAnd here is the oak one, same thing slightly different settings:
https://i.imgur.com/UaJmRDt.jpgIdeas? Suggestions?
Question 2 - GrassGrass material:
https://i.imgur.com/B6FuxTv.jpgClover material:
https://i.imgur.com/stJAmq1.jpgAs you can see these are pretty much the same thing as the leaves, but for some reason, they behave quite differently with IBL lightning:
https://i.imgur.com/rpLhesB.jpgI've set them up with Coronas Sun&Sky, and was surprised when i tested IBL. Lightning is done with pure IBL, using this HDRI
http://www.cg-source.com/details_hdrisky.php?id=0086-03&pricat=skyUsed sample version, much lower resolution but with all of the EV range.
Ideas? Suggestions? What is going on with that grass and clovers?
Question 3 - Background overrideBackground override image is just a gray mess, easily fixed by boosting it output. I always add background in post so this isn't really and issue for me :D I was just wondering if i'm doing something wrong, or missing some check box somewhere?
https://i.imgur.com/mqBXsNt.jpgQuestion 4 - Environment fogI've done my share of exploring this forum, and as far as i can tell what i want can't be done. Again, just to make sure i'm not missing something.
When Corona Volumetric material is added to geometry, it works, but it also affects background. Bad for post (completely easily solved with alpha channel).
This is what i'm getting:
https://i.imgur.com/VHO5b0E.jpgI know that what i want (separate pass with just the fog for adding in post) is just an inverted z-depth, and that works fine. Like i said, just to make sure i'm not missing something.
Well, this is already to long of a thread. Tomorrow i'm away on a trip (if someone answers, i'm not being ungrateful :) ), but looking forward to any help and advice you fine coronauts can give me.
Thanks in advance!