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rendering - How to Render, raytrace, Export Graphics3D in Mathematica 11.0


The Mathematica Package below exports to either of two popular human readable raytracer file formats (not 3ds which is proprietary/binary), and can be used Live in Mathematica interactively/Live. (it requires rayshade or povray binary which are easily available)


https://sourceforge.net/projects/rayshade-math/


Mathematica has import/export to institutional formats for geo mapping and chemical. For most, those are the work-horses and more the focus - but i have no idea there how well mm does exporting. Importing wise, Mathematica can use maps we all know that!


Below is a simple Mathematica scene with two optional raytrace directives inserted to specify appearance Mathematica/GL does not support.


<
g = Graphics3D[
Table[With[{p = {i, j, k}/3}, {RGBColor[p], RGBColor[p], 
  Sphere[p, .1]}], {i, 2}, {j, 2}, {k, 2}]];


g=Graphics3D[{RayInput["rayinput repeat # # # reflect .2"], 
Table[With[{p = {i, j, k}/3}, {Opacity[.75
  ], Specularity[RGBColor[p], 60], RGBColor[p], 
 Sphere[p, .1]}], {i, 2}, {j, 2}, {k, 2}], {Opacity[.44], , 
Specularity[RGBColor[.7, .7, .7], 60], 
RayInput["rayinput # # # reflect .7 index 1.3"], 
Sphere[{1/3 + 1/6, 1/3 + 1/6, 1/3 + 1/6}, .15]}}];

Rayshade[]


Much more complicated Graphics3D can be done, for 11.0 (too big to comment on) many will work, many not without Normal[] (due of lack of access to internal Mathematica code).


a busy cat rayshade-mathematica


I'm interested if anyone is exporting to a Cuda rendering suite or even 3DStudio ARt Renderer and how well Export[] did (why is: in the past export was poor, could only do single objects, and i have no recent copy of 3DStudio to check today's results and I do not have fingers crossed since Wolfram only shows pics being exported not their results after rendering)




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