https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Refraction-Transparency/m-p/1163330#M788 <P>Hi,</P><P>I want&nbsp;to implement refraction using embree. I put a standard cube ( 12 triangles , 8 vertices) like in triangle tutorial embree 3.2. The problem is that primary ray hits first face of cube but not the second (it passes through the cube ). I have no idea why. Is there some flag to turn on to trace transparent objects? I tried&nbsp;rtcSetSceneFlags(scene, RTC_SCENE_FLAG_ROBUST); but it doesn't change a thing.Help pls!</P> Thu, 22 Nov 2018 15:47:03 GMT Mos__Keicam 2018-11-22T15:47:03Z https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Refraction-Transparency/m-p/1163330#M788 <P>Hi,</P><P>I want&nbsp;to implement refraction using embree. I put a standard cube ( 12 triangles , 8 vertices) like in triangle tutorial embree 3.2. The problem is that primary ray hits first face of cube but not the second (it passes through the cube ). I have no idea why. Is there some flag to turn on to trace transparent objects? I tried&nbsp;rtcSetSceneFlags(scene, RTC_SCENE_FLAG_ROBUST); but it doesn't change a thing.Help pls!</P> Thu, 22 Nov 2018 15:47:03 GMT https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Refraction-Transparency/m-p/1163330#M788 Mos__Keicam 2018-11-22T15:47:03Z