richard_mcd_green Posted March 20, 2018 Share Posted March 20, 2018 Hi guys. I'm trying to render a candle simulation using the temperature field, but my renders are getting noticeable colour banding. Looking at a cross section of the temperature field in the Pyro object node, there is clear banding. I'm wondering if there's a way to give this field better interpolation without changing the overall shape of the simulation? I've attached a picture of the temp field and a render. Thanks Quote Link to comment Share on other sites More sharing options...
bunker Posted March 24, 2018 Share Posted March 24, 2018 quickest way: use a volume blur SOP and set your Voxel radius to: 0,1,0 to blur on the Y axis Quote Link to comment Share on other sites More sharing options...
TheDude Posted March 27, 2018 Share Posted March 27, 2018 What bunker recommended will work well. To address why this is happening, I am guessing, is that you have a significantly high heat value around your source and the temperature dissipation is significantly high along with buoyancy. This means you have fast moving voxels in the Y value, carrying high values that will consistently devalue at each step. Solutions being to increase steps, add noise to your source fields with appropriate frequency enough to mess up this obvious banding. Quote Link to comment Share on other sites More sharing options...
richard_mcd_green Posted March 27, 2018 Author Share Posted March 27, 2018 Thanks, I'll give these a go. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.