Forums Technical Discussion pixelated edge around water splash

pixelated edge around water splash

   1927   4   0
User Avatar
Pavel Alex
Member
4 posts
Joined: June 2015
Offline
 
Hey guys,
I am getting this pixelated edge around my water splashes, in the render. It only happens when i render together the meshed flip + spray + foam. If i remove one of them from the render, that pixelated edge goes away. Any idea why? Here are some images:

I am using Houdini 14 on windows 10.

Thanks,
Alex

Attachments:
Screenshot (95).png (57.5 KB)
PixelWater.jpg (604.6 KB)

 Report
User Avatar
Enivob
Member
2537 posts
Joined: June 2008
Offline
 
Try increasing the Stochastic Samples value inside the Mantra render node under the Rendering TAB.
The default of 4 is not high enough when dealing with transparencies.
Try at least 9 or higher.
Using Houdini Indie 20.0
Windows 11 64GB Ryzen 16 core.
nVidia 3050RTX 8BG RAM.
 Report
User Avatar
Pavel Alex
Member
4 posts
Joined: June 2015
Offline
 
I've tried 32 stochastic samples and i still get that edge. I also tried increasing volume quality, but no improvement.
 Report
User Avatar
Enivob
Member
2537 posts
Joined: June 2008
Offline
 
What about increasing the bounce limits for indirect rays? Once a ray passes through a surface, such as water or glass, the limits on the Limits tab are no longer in effect and the new limits on the sampling tab take over. They default to 0. Try turning up the reflection sample value.
Using Houdini Indie 20.0
Windows 11 64GB Ryzen 16 core.
nVidia 3050RTX 8BG RAM.
 Report
User Avatar
Pavel Alex
Member
4 posts
Joined: June 2015
Offline
 
Sorry for my late reply. Thanks for the tips Enivob!
I found the problem; it was the volume samples inside the shader. I had to increase the volume samples count from 1 to 4 and that fixed the issue.

Cheers!

Attachments:
Screenshot (96).png (680.2 KB)

 Report
  • Quick Links