Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: SHORT CUTS on 2018-09-27, 15:48:13

Title: LightMtl & Texture Mapping
Post by: SHORT CUTS on 2018-09-27, 15:48:13

I am not sure if its a bug but it doesnt seem right.
If i use a normal CoronaMtl and plug in a gradient ramp and map it onto a spline using real world scale everthing looks as expected.
If i use a CoronaLightMtl and plug in the same gradient ramp in the texture slot the mapping gets messed up and its not rendering correct. I attached two images to illustrate the problem, one with the normal CoronaMtl and the other on with a LightMtl. Nothing has changed except the material. Some parts are ok others are stretched...

Title: Re: LightMtl & Texture Mapping
Post by: maru on 2018-09-28, 12:57:15

Can you show the 2 materials on exactly the same part of geometry? (right now your screenshots are showing different parts)
I don't see a reason why this should not work...

Title: Re: LightMtl & Texture Mapping
Post by: SHORT CUTS on 2018-10-09, 11:30:45

Sorry to reply so late, we had to to finish the animation and i havent had the time. It seems its only a problem in this specific scene, i tried it in a new scene and it was working as expected. Not sure what went wrong in our animation but we got away with using a self illuminated corona material instead of a light material.

Title: Re: LightMtl & Texture Mapping
Post by: maru on 2018-10-12, 19:29:14

Maybe wrong material channel id? Moving to resolved until re-reported.