[Bf-committers] MSVC official builds, optimisation and render errors

[Matt Ebb]

Hi,

I've seen a few posts around the forums and in the bug tracker about  
render errors when using raytracing, in the form of black or white  
dots. I'd never experienced that myself (using mainly OS X and cygwin  
builds), and when I downloaded one of the test files on the tracker,  
I couldn't reproduce the bug either.

This led me to guess that the problem may be due to the official MSVC  
build, and perhaps some sort of optimisation difference there. In a  
recent thread about this issue [1] I suggested that the person  
experiencing the problem try a cygwin build that I made, and his  
problem went away.

Could the person who's doing the official BF Windows builds with MSVC  
please check on this? One of the bug reports is in the tracker [2]  
with a link to a test file. I think it would be a good idea to try  
that file, see if you can reproduce the bug, and check with various  
compiler settings to see if that has any effect. It would be very  
unfortunate to have this quite serious problem in 2.45 as well.

cheers,

Matt



[1] http://blenderartists.org/forum/showthread.php?p=917833#post917833
[2] https://projects.blender.org/tracker/index.php? 
func=detail&aid=6861&group_id=9&atid=125

------------------------------------------
Matt Ebb . matt at mke3.net . http://mke3.net



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