Dynamic Paint Works Only in Viewport Render #51214
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Reference: blender/blender#51214
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I created a material effect that requires the use of Blender's Dynamic Paint to work the best way possible. It works correctly with a baked image sequence, but vertex colors don't work. There is another effect that does work in the rendered scene with vertex colors, on both the wetmap and paint map, but this file doesn't seem to work.
System Information
Windows 10 Home
Nvidia GeForce GTX 970
Blender Version
Broken:
e8299c8
Short description of error
Full rendered materials do not respond to dynamic paint vertex color influence.
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
To repeat:
Download the .blend file,
go to any frame between frames 150 and 191,
check in viewport render
perform full render.
Interestingly, it works on both the paintmap and wetmap on an entirely new scene, but not this one with this specific material.
notWorking.blend
Changed status to: 'Open'
Added subscriber: @Leumeister
The problem comes from the subsurf modifier (it is disabled in preview mode (0), while enabled for final rendering).
Note that if you put dynamic paint modifier before subsurf in the stack, everything works OK.
Added subscriber: @Sergey
Mehh, this even more complicated… There is a dependency cycle here, detected by legacy depsgraph. So tried with new depsgraph and… got a nice crash on startup (first evaluation of the scene) - new one also reports a dependency cycle btw.
Summoning @Sergey here, maybe he can figure out what’s happening here more easily than me :/
Added subscriber: @mont29
Bah, am now getting a straight crash when trying to switch to Cycles viewport render…
@Sergey assigning to you since I suspect some nasty DEG issue is at play here (and maybe a new Cycles one too? did not crash back in April.
Ok, so now crash seems to have disappeared again. Issue with rendering remains though. :)
Added subscriber: @91jnar91
This comment was removed by @91jnar91
Added subscriber: @knusk
Any updates on this? There seems to be issues with rendering vertex colors that are manipulated using python api, or addons when modifiers are present. Viewport is fine but rendered images do not reflect the changes.
Blender 2.80 (sub 39), Commit date: 2018-12-29 18:10, Hash
266b1e2cdb
x86_64 Linux 4.14.90-1-MANJARO
More info: https://github.com/JacquesLucke/animation_nodes/issues/989
Added subscriber: @DanielPaul
Added subscriber: @fclem
It works in LookDev mode.
@fclem, not sure if that's by design or some issue is involved?
Changed status from 'Open' to: 'Archived'
The issue here is that dynamic paint does not work if after an enabled subsurf modifier. Putting it before and everything is working.
This kind of make sense since the dynamic paint modifier modify the original mesh data.
So closing as working as expected. But feel free to reopen with more detail if I got it wrong.