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 TypeReported In  ascPrioritySeveritySummaryStatusProgressDue In Version
293User interfacePossible Bug3.70 RC7Very LowLowPOV-Ray Shown Twice in Windows TaskbarTracked on GitHub
Task Description

When rendering for some time, it occasionally happens that POV-Ray appears twice in the Windows taskbar. One button is the normal one, the other one does not open any window when clicked on and reads something like “99% complete” (see attached image), like the render window’s title, but obviously unrelated to it (probably the title the render window had shortly before?). After stopping the render, the odd taskbar button remains there until POV-Ray is closed.

  • Observed under Windows XP
  • POV-Ray 3.7.0.RC7.msvc10-sse2.win32
  • When applications are summarized into groups in the taskbar by Windows, the odd POV-Ray button is attached to the Windows Explorer group
  • Run with render priority set to “high”

Is this a Bug in Windows or in POV-Ray?

302OtherPossible Bug3.70 RC7Very LowLowconfusing error message when .ini file cannot be parsedTracked on GitHub
Task Description

When a command-line parameter in an .ini file cannot be parsed (such as “+a.3”), POV-Ray reports a “Problem with setting”, quoting the command line, rather than indicating that the problem occurred in an .ini file. This leads the user to think that the problem is with the command line itself, unnecessarily confusing him.

292Geometric PrimitivesUnimp. Feature/TODO3.70 RC7Very LowLowArbitrary containing object for isosurfacesTracked on GitHub
Task Description

A low priority thought for the future: isosurface now only allows contained_by to be a sphere or a box. It would be more intuitive to allow the same objects that are allowed in clipped_by and bounded_by (although it probably needs to be finite). It would enable allow much faster rendering in many cases:

1) There are a lot of cases when the sphere or a box are very bad in bounding - if an object has a hole, a torus may be better, and in many cases, cylindrical bounding would help a lot.
2) Sometimes, having a too large contained_by object includes far-away parts of the iso-function, and expose large gradients that you want to avoid. If a bounding object is better, you can decrease the max_gradient and speed up the render.
3) The isosurface is usually much more expensive to calculate than any normal bounding object, so it’s an improvement even if the intesection test is not as fast as bounding box.
4) A typical case: if you use texture-like functions to make the surface realistically rough, you know almost exactly what the bounding object is - it can be the original unmodified object.
5) For isosurface terrains, a preprocessing macro could create a rough mesh-like bounding object to contain the “mountains”, thus making everything faster.
6) In case you want clipping, having the contained_by set to the same object probably avoits calculating too many intersections.

The main modification is probably that the intersections of bounding objects can be split into more than one interval - but it’s probably worth it, the isosurfaces are usually a speed bottleneck.

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