The Persistence of Vision Raytracer (POV-Ray).

This is the legacy Bug Tracking System for the POV-Ray project. Bugs listed here are being migrated to our github issue tracker. Please refer to that for new reports or updates to existing ones on this system.

IDCategoryTask Type  ascReported InPrioritySeveritySummaryStatusProgressDue In Version
8RadiosityUnimp. Feature/TODO3.70 beta 32DeferLowImprove Radiosity "Cross-Talk" Rejection in CornersTracked on GitHub
Future release Task Description

Near concave edges, radiosity samples may be re-used at a longer distance away from the edge than towards the edge; there is code in place to ensure this, but it only works properly where two surfaces meet roughly rectangularly, while failing near the junction of three surfaces or non-rectangular edges, potentially causing “cross-talk”.

It should be investigated how the algorithm can be improved or replaced to better cope with non-trivial geometry.

58Parser/SDLUnimp. Feature/TODO3.70 beta 32DeferLowallow SDL code to detect optional featuresTracked on GitHub
Task Description

Some features are optional in custom builds of POV-Ray (I’m thinking about OpenEXR in particular); it would be nice to have a syntax for an SDL script to check for support of such features, so it may take some fallback action if the feature is not supported.

243Geometric PrimitivesUnimp. Feature/TODOAllDeferLowSphere sweep behaves wrong when scaledTracked on GitHub
Future release Task Description

The sphere_sweep renders well when specified directly, but when it is scaled, its bounding box is calculated incorrectly, which clips the object so it almost disappears.

The effect is present for all three types of splines.

I’m attaching a test scene and the rendering result. The saving of the object with #declare has no effect, I just wanted to show both transformed and untransformed version.

I don’t think this issue is related to other artifacts occuring with sphere_sweep, as it is obviously an issue of the internal bounding box.

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