Hi everyone,

I saw this post on the Rhino news blog that says DIVA 4.0 for Grasshopper contains the forward ray tracing photon mapping module by Roland Schregle:

http://blog.rhino3d.com/2016/06/new-diva-40-beta-for-rhino.html

I'm wondering where I can find this module in the DIVA plugin interface or if there are any tutorials available?

Ideally I'd like to conduct a study for a geometry I have looking at the effect of surface imperfections (i.e. roughness) on the reflected radiation profile from this geometry to a receiving surface and this ray tracer in DIVA could be really useful if it is in-fact implemented in the current version.

Thanks!

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Hi Daniel,

The Photon Map / forward raytrace module is only implemented into the Rhino toolbar at the moment, not Grasshopper. There are no tutorials available, but you can reach it under Metrics > Visualizations > Advanced Radiance Parameters > Run Photon Map. Two points for your study:

  1. Make sure the surface normals of your rough, reflecting material are facing outwards.
  2. Set the photon port material to the surface you wish to reflect the light from.

Best,

Alstan

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