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The default built in ray tracer is CPU based. 





Light model

The built-in ray tacer also provides a light model to use in a rgg project.

→ Read more...



Twilight renderer

This is the so-called “Twilight” renderer. Included are a the “</description>
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GroIMP provides a GPU-based ray tracer based on a Monte-Carlo method. It utilizes available computing resources through OpenCL. During simulation, each object keeps track of the amount of light it absorbs. Per object, it either computes a fully discretized absorption spectrum or several integrated weighted spectra, which are subsequently used in a photosynthesis model.</description>
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External renders can be used to create a 3D view of higher quality. The POV-Ray Plugin provides a scene export to the POV-Ray format which makes it possible to use the free ray-tracer POV-Ray as an external renderer, see the POV-Ray manual. The resulting image is directly shown in GroIMP&#039;s 3D view.</description>
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