tag:blogger.com,1999:blog-7277449027963623452.post7916114730106588251..comments2023-12-07T05:43:10.401-08:00Comments on Ray Tracey's blog: OpenCL path tracing tutorial 3: OpenGL viewport, interactive camera and defocus blurSam Laperehttp://www.blogger.com/profile/05688552048697970050noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-7277449027963623452.post-27535599921716445842017-04-05T13:48:37.513-07:002017-04-05T13:48:37.513-07:00@ Jan Vlietinck: long time no see! How are things?...@ Jan Vlietinck: long time no see! How are things? Path tracing for medical volume rendering is something I want to look into quite soon-ish, Siemens "cinematic rendering" (https://www.youtube.com/watch?v=703Zzl8YYJk) produces stunning images<br /> <br />Dave: The pattern is caused by a poor random number generator. Some people have contributed code improvements to make the RNG more "random" and less prone to artefacts, but it's still not as good as CUDA's quasi-random Sobol RNG. Sam Laperehttps://www.blogger.com/profile/05688552048697970050noreply@blogger.comtag:blogger.com,1999:blog-7277449027963623452.post-27154502144142007372017-04-05T06:52:29.728-07:002017-04-05T06:52:29.728-07:00When I run this on nVidia GTX 660 I get some notic...When I run this on nVidia GTX 660 I get some noticeably lighter pixels, they form a grid pattern within the resultant image. Any idea how to get past that?Davehttps://www.blogger.com/profile/11457175753575100522noreply@blogger.comtag:blogger.com,1999:blog-7277449027963623452.post-21547792832363979362017-02-05T22:45:12.492-08:002017-02-05T22:45:12.492-08:00Interesting but I'm more interested in volume ...Interesting but I'm more interested in volume rendering path tracing.Jan Vlietinckhttps://www.blogger.com/profile/03971600554576794545noreply@blogger.comtag:blogger.com,1999:blog-7277449027963623452.post-38454252131875530762017-01-11T22:16:27.558-08:002017-01-11T22:16:27.558-08:00Thanks Sam! Can't wait to try this out on my ...Thanks Sam! Can't wait to try this out on my machine! Thanks for the mention in your post. I am glad to contribute in some small way. Looking forward to the accompanying write-up for this post. Thanks again for all your hard work!<br />-ErichAnonymoushttps://www.blogger.com/profile/17251644737295726918noreply@blogger.com