Moon Hyo Jeong Posted January 1, 2017 Share Posted January 1, 2017 Hi. I am a beginner in Houdini studying in Korea. I have not been able to find a way to do this all day. I created a snow that flies quickly with particles. After rendering the mantra to the snow I want to give a vector blur in Nuke, but it is difficult to draw a pass. I can not continue vector blur in velocity direction. How do I make it look like a picture? I have not found it in a few days. Please help me. Quote Link to comment Share on other sites More sharing options...
catchyid Posted January 1, 2017 Share Posted January 1, 2017 Hi, Below is a question I've posted before on a similar topic to yours (not the same, but it has some ideas that might help you). In summary, you need to switch your output format to exr then export velocity vectors as a layer/pass in your exr file (check your mantra rendering node image pane and you will find available passes). If your objects/particles have no velocity, then use "trail" node (but I think they must have velocity already) Quote Link to comment Share on other sites More sharing options...
Atom Posted January 1, 2017 Share Posted January 1, 2017 The trail node will add velocity if it is not present if you change the mode to "Compute Velocity". Quote Link to comment Share on other sites More sharing options...
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