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Distributed Ray-Tracing

(www.4rknova.com)
36 points ibobev | 1 comments | | HN request time: 0.199s | source
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knorker ◴[] No.45668921[source]
> Conventional ray-tracing is estimating illumination using a single sample across the entire domain, which constitutes a particularly crude approximation.

Straw man.

> Shadows have a hard edge, as only infinitesimally small point light sources of zero volume can be simulated

Uh, no. Raytracing can definitely have emitting surfaces and volumes.

> Reflection / Refraction can only simulate a limited set of light paths, for perfect mirror surfaces, or perfectly homogeneous transparent media.

You sure about that?

> More complex effects like depth of field are not supported.

https://www.povray.org/documentation/view/3.60/248/

Also, the title should get a "2019" tag.

replies(2): >>45669196 #>>45671990 #
1. ginko ◴[] No.45669196[source]
I believe the article refers specifically to Whitted ray tracing when referring to 'ray-tracing' as opposed to distribution ray tracing or path tracing.

POV-ray supports all kind of ray tracing and path tracing techniques, not just Whitted RT.