dus.marjanovic Posted July 1, 2018 Share Posted July 1, 2018 Hello, I'm trying to render out cracked glass but I have this awful flickering and don't know how to fix it. I cranked up min,max rays , reflection and refraction but nothing helped. It is animated but in this render it is static for testing and renders should be solid since nothing moves. Does anyone knows how to fix this in Mantra? Thank you. Glass Flickering_1.mov Quote Link to comment Share on other sites More sharing options...
Noobini Posted July 1, 2018 Share Posted July 1, 2018 Pretend your glass is a box with voronoi fracture, just use a switch to switch between the perfect box and the 'broken' box. Is it time to 'break' the box yet ? no, render the perfect box.....otherwise, render the 'broken' box. Quote Link to comment Share on other sites More sharing options...
dus.marjanovic Posted July 1, 2018 Author Share Posted July 1, 2018 Thank you, but image behind that should be refracted is animated and glass crack is slowed down so it has to be rendered normally. Quote Link to comment Share on other sites More sharing options...
toadstorm Posted July 1, 2018 Share Posted July 1, 2018 If the surfaces of your different glass chunks are sitting right on top of each other, you may need to adjust Ray Bias on the Mantra ROP to prevent rays from getting confused by coplanar surfaces. 1 Quote Link to comment Share on other sites More sharing options...
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