Intel® Embree Ray Tracing Kernels
Discussion forum on the open source ray tracing kernels for fast photo-realistic rendering on Intel® CPUs.
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RTC_GEOMETRY_TYPE_SPHERE_POINT geometry in 3.4

AndrewC
New Contributor II
336 Views

Hi,

I am wanting to use the new  RTC_GEOMETRY_TYPE_SPHERE_POINT in embree 3.4. However it's unclear to me what is returned in the RayHit structure for a sphere hit? What does u,v mean for a sphere?

 

Andrew

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SvenW_Intel
Moderator
336 Views

The hit distance and geometry normal field are set for the point geometry, u and v are set to zero. In particular the returned normal can get used to calculate coordinates for your sphere parametrization of choice.

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SvenW_Intel
Moderator
337 Views

The hit distance and geometry normal field are set for the point geometry, u and v are set to zero. In particular the returned normal can get used to calculate coordinates for your sphere parametrization of choice.

AndrewC
New Contributor II
336 Views

OK, makes sense thanks!

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