Re: [PyOpenGL-Users] Lighting and texturing

[Richard J. <ric...@op...>]

Thanks Mike, the problem was in fact a GL_DECAL use. The lesson18 source in 
the NeHe demo directory needs to be fixed to remove it. Works a treat then.

The other problem I had - the transparency not working - is still a problem. 
For that code, on Pete's suggestion, I've used GL_BLEND, but the resultant 
image turns blue! I suspect my image's alpha channel is not up to scratch. 
This is the image I attached to my last message. Any suggestions for paint 
packages that produce reliable alpha channels? The GIMP seems to (in editing) 
but I just loaded my PNG into another package and that said the image is 24 
bit. That tells me that either the GIMP is writing 6 bits per channel (which 
as far as I can tell, it's not) or it's not writing the alpha channel. And 
yet when I load the image back into the GIMP, it's got transparency...

Mike - that info you posted looked like an FAQ entry - if it is, what's the 
URL please?


       Richard