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

AndrewC
New Contributor III
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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
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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
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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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AndrewC
New Contributor III
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OK, makes sense thanks!

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