kashmere Posted November 20, 2017 Share Posted November 20, 2017 This is a WIP, I can't figure out why the smoke starts flickering towards the end when it thinner. any suggestions? A_exposion_03.mov Quote Link to comment Share on other sites More sharing options...
rbowden Posted November 20, 2017 Share Posted November 20, 2017 Are you seeing this in the render also? This looks like just openGL artifacts to me. Quote Link to comment Share on other sites More sharing options...
kashmere Posted November 21, 2017 Author Share Posted November 21, 2017 18 hours ago, rbowden said: Are you seeing this in the render also? This looks like just openGL artifacts to me. Yes in render as well. It is a different iteration but the artifact is still there. Quote Link to comment Share on other sites More sharing options...
rbowden Posted November 21, 2017 Share Posted November 21, 2017 I see the artifact in the high dense areas but, I don't know what you are trying to circle for me in the dark area. To show you have no density in there and that you are supposed to? The block artifact can be because of a number of things. Do you have a shader applied? What is the scale of this scene? Did you crank disturbance up to high? You mentioned this is low res, maybe the resolution is still too low? So many different things it could be. In this case, uploading your file or a test file showing the issue would be more beneficial. Quote Link to comment Share on other sites More sharing options...
kashmere Posted November 21, 2017 Author Share Posted November 21, 2017 Hi Ryan, I will attach the hip file to this. - the artifact is appearing when the smoke thins out, sorry for the poor scene setup and camera angle which is giving the illusion that artifact is appearing in dense region. That is why I circled then, the region is the left circle is as thin as the region in the right circle. - the scale of the scene is real world, in meters. disturbance is not very high and It is animated to become 0.05 by 48-60 frames. I will try killing it completely for my next iteration. - I am using shader from my previous project where the explosion was baout a 100 times larger than this one. I have not yet refined it for this project. Shot_02_odforce.hipnc Quote Link to comment Share on other sites More sharing options...
rbowden Posted November 22, 2017 Share Posted November 22, 2017 Missing alot of components in that file to be able to investigate property unfortunately. It is possible it has something to do with the shader also (even though it is just the fireball shader). Take a look at these topics I found on some other things you can try. http://forums.odforce.net/topic/20121-streak-artifact-in-billowy-smoke/ http://forums.odforce.net/topic/23667-pyro-smoke-artifacts/ You can also try locking the frame in question in your file and then reuploading it on here. Quote Link to comment Share on other sites More sharing options...
kashmere Posted November 27, 2017 Author Share Posted November 27, 2017 I got it, it was the quantization value in volume compress node, it was too high. thanks for your time. Quote Link to comment Share on other sites More sharing options...
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