https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Get-Primitive-Locations-After-a-Move/m-p/1171003#M818 <P>Dear all. I have a program in which I am updating the scene in a similar way to the instanced geometry tutorial. At certain points however, I would like to record information about where all my primitives now are in a .txt or something (all triangles in this case). Is there a way to recover a list of vertex locations and vertex numbers that make up my triangular primitives from one of the data structures in embree?</P> <P>&nbsp;</P> <P>&nbsp;</P> Wed, 18 Apr 2018 09:00:50 GMT Lawrence_S_ 2018-04-18T09:00:50Z https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Get-Primitive-Locations-After-a-Move/m-p/1171003#M818 <P>Dear all. I have a program in which I am updating the scene in a similar way to the instanced geometry tutorial. At certain points however, I would like to record information about where all my primitives now are in a .txt or something (all triangles in this case). Is there a way to recover a list of vertex locations and vertex numbers that make up my triangular primitives from one of the data structures in embree?</P> <P>&nbsp;</P> <P>&nbsp;</P> Wed, 18 Apr 2018 09:00:50 GMT https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Get-Primitive-Locations-After-a-Move/m-p/1171003#M818 Lawrence_S_ 2018-04-18T09:00:50Z https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Get-Primitive-Locations-After-a-Move/m-p/1171004#M819 <P>As your program has the affine transformation for each instance and the vertex data of each instanced object anyway, the probably easiest way is to just transform the vertices yourself and then dump the data into a file. Embree internally does not transform the geometry but only the ray.</P> Wed, 18 Apr 2018 13:04:05 GMT https://community.intel.com/t5/Intel-Embree-Ray-Tracing-Kernels/Get-Primitive-Locations-After-a-Move/m-p/1171004#M819 BenthinC_Intel 2018-04-18T13:04:05Z