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- Persistence of Vision Raytracer
- Version 1.0
- Bug Reports
- -------------------------------
-
- This document describes the best method for reporting problems and then
- list some known problems with POV-Ray.
-
- -------------------------------------------------------------------
- Reporting Problems
- -------------------------------------------------------------------
-
- The best method for reporting problems is to create the smallest
- possible scene file that duplicates your problem and post it as a
- message in CompuServe's COMART forum section 16 along with a
- description of the problem. All of the POV-Team regularly checks in
- there, as well as many other intelligent, talented people who love to
- help out. Most problems are solved very quickly this way. Alternately,
- you may send mail to any of the primary authors listed in POVRAY.DOC,
- "Contacting the Authors".
-
- We receive many great letters with compliments, suggestions, and
- problem reports. The problem reports are often very vague and difficult
- to pin down. POV-Ray is a very complex program and it runs on many
- different computers. To find the cause of a problem, we need as much
- specific information as possible and hopefully, a small scene file that
- demonstrates the problem. Here's a list of info that would be helpful
- to send to us when reporting a problem:
-
- 1: What is your computer setup?
- 1a: What is the software and hardware configuration of your
- computer
- 1b: Have you tried using the simplest configuration of your
- computer to test the problem? (ie. no memory resident software,
- no tricky utilities loaded.)
- 1c: What version of the software are you using? (ie. 1.0ibc 1.0tc5)
-
- 2: Have you experienced this problem on another computer?
-
- 3: Have you heard other reports of this problem?
-
- 4: Has this always been a problem or did it ever work correctly
- before?
-
- 5: Can you pinpoint the problem to a certain line or block of
- lines in a scene file?
-
- 6: Can you reliably duplicate the problem and describe the steps to
- duplicate it?
-
- 7: Have you experienced the problem in more than one scene file?
-
- 8: Are you experiencing the problem with one of the executables
- released by the POV-Team, or is this your own compiled executable?
- 9: If you have modified your personal copy of the source, can you
- duplicate the problem with an unmodified copy of the source?
-
- --------------------------------------------------------------------------
- Known Problems
- --------------------------------------------------------------------------
-
- :: Height fields used as clipping shapes may cause the program to
- abort with an error. Height fields are not meant to be used as
- clipping shapes currently, so this problem is low priority.
-
- :: Roughness 0 will cause the program to abort with a math error.
-
- :: Very low values of roughness ( <.001 ) will cause math errors on
- some computers, notably the Amiga.
-
- :: Scaling any component by zero (scale <2 0 3>) will cause the
- program to abort with a math error.
-
- :: The IBM-PC display code autodetect is not perfect. Try using
- different display modes described if IBMPC.DOC if +d0 doesn't work
- correctly for you.
-
- :: Error messages are often cryptic. See POVERR.DOC for help with
- this.
-
- :: Blobs and quartics will not always render correctly. Noise appears
- on the screen or holes in the shape. This is caused by numberical
- inaccuracies in your computer. Try adding the sturm keyword to the
- shape's definition to use a more accurate, but slower method of
- computing the shape. This won't always work, either, and you may
- just have to use a different shape.
-
- :: Layered textures don't work correctly with tiles or material_maps
-