Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: Marcin Pabich on 2020-02-06, 12:29:50
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Hi, i have a problem with converting Evermotion V-Ray trees. After using Corona converter (also with option Fix opacity map) leaves have a bad material which is too dark. I played with translucency map, but still the effect isn't good enough. Do You have any tips to fix that quickly for many trees in one scene? Thanks for help!
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Hi, i have a problem with converting Evermotion V-Ray trees. After using Corona converter (also with option Fix opacity map) leaves have a bad material which is too dark. I played with translucency map, but still the effect isn't good enough. Do You have any tips to fix that quickly for many trees in one scene? Thanks for help!
Hi Marcin, can you provide a screenshot with the node structure of your leaf-material and CoronaMtl Basic Options (diffuse, refl,refr, opc values etc.)? You can also get some nice leaf materials from Corona Material Library > Nature.
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Just to chime in on this: it does seem the material converter struggles when needed to convert 2 sided leaf materials w. translucency maps.
It completely removes the backside material and replaces the translucency map with a different map (a black and white map, which makes overall material way darker). So basically there is a lot of manual tweaking needed to be done. I do it like this:
Copy material of the vray object BEFORE converting.
Convert vray object to corona material via the corona tool.
Then I have to copy over the original translucency and backside bitmap from the org. vray material.
Create a corona 2 sided map
Plug it into the diffuse of leaf material and load in front+back map (since corona doesn't support 2 sided mats as vray).
Replace the b/w map in translucency slot with the org. translucency map.
A lot of extra steps to convert most vegetation assets. Would love if it could do the above automatically when hitting "convert" :)