Vinz Posted February 6, 2021 Share Posted February 6, 2021 Hi Odforcers, does anyone know how to wire the 'fake caustics' VOP inside mat builder? (apart from using the principled shader, tx) Quote Link to comment Share on other sites More sharing options...
schwungsau Posted February 7, 2021 Share Posted February 7, 2021 not sure how do it in mantra work. but with a regular pathtracer, you take the dot product of surface normal (N) and the in-coming rays (I) and plug into a ramp and feed the shadowcolor with it. Quote Link to comment Share on other sites More sharing options...
Vinz Posted February 7, 2021 Author Share Posted February 7, 2021 Very nice stuff man! Do you think you could give it a shot? Here is a tiny test scene with the mat builer https://www.dropbox.com/s/gmry1m5c49btb1l/Fake_Caustics_VOP.hipnc?dl=0 That would be very useful to me on the long run.. Quote Link to comment Share on other sites More sharing options...
Nicholas Ralabate Posted February 7, 2021 Share Posted February 7, 2021 I think you just pipe it into opacity... crack open the Principled Shader Core to see how SESI sets it up... ncr_fake_caustics.hiplc 1 Quote Link to comment Share on other sites More sharing options...
Librarian Posted February 7, 2021 Share Posted February 7, 2021 Not Right Calculation ..but I like Result FCODFORCE.hipnc Quote Link to comment Share on other sites More sharing options...
Vinz Posted February 10, 2021 Author Share Posted February 10, 2021 Thank you both Nicholas and Tesan.. I am combining both methods.. working on it.. will post if I get something interesting Quote Link to comment Share on other sites More sharing options...
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