POV-Ray : Newsgroups : povray.beta-test.binaries : material map bug Server Time
29 Apr 2024 07:16:25 EDT (-0400)
  material map bug (Message 1 to 1 of 1)  
From: Henry Bush
Subject: material map bug
Date: 6 Apr 2002 07:20:46
Message: <3CAEE82D.8080505@hotmail.com>
Ripped straight from the scene file...

// This scene contains a box with a material map on it (80x80x16 colours)

// Two bugs actually: when this scene is rendered several times, I get 
(seemingly random) different colours for the
// space outside the circle (which is palette index 15 and not specified 
in the map), and therefore the other two
// visible sides of the box. I've had black and yellow mostly (indices 0 
and 2-15), but also red occasionally (index 1).
// But I've not got red for quite some time (traced it probs about 100 
times as well, so it's not a 1/16 chance!).


// NOTE: This next bit is not a bug. Just checked the docs. The insert 
material_map states interpolate type 1
// can be used for linear interpolation. Can this be changed?

// (IGNORE) The other bug is that When I use linear interpolation on the 
material_map, I get a black (index 0) box: no image at
// all. This isn't affected by map type. I discover now that it occurs 
with image_maps too. Someone must have found
// this bug before, right? (/IGNORE)



// I've tested this bug with both a BMP and a PNG and the bug still 
occurs in each case.
// Bug has been tested on my system in 3.1g, same thing happens.

// I think I've removed all that I can, including lights. All done with 
ambient.


// POV 3.5 Build 15, Athlon 650 o/c to 682, 512Mb RAM, Windows XP Pro.


Post a reply to this message


Attachments:
Download 'us-ascii' (3 KB) Download 'circular window 1 stupidly small.bmp.dat' (4 KB) Download 'circular window 1 stupidly small.png' (1 KB)

Preview of image 'circular window 1 stupidly small.png'
circular window 1 stupidly small.png


 

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.