Re: [PyOpenGL-Users] Texture Blitting?

[<il...@ya...>]

Hello,

I'm interested in what you've been doing with blitting
in pygame.  If you posted your code, I'd like to play
around with it.

A while ago I wrote a pygame.sprite implementation
which used opengl.  The idea was to be able to switch
renderers.  It has a number of problems, but kind of
works ok for some games.

Be good to get something which works well and fast on
different computers/games.

Again, if I could have a look at your code I'd like to
play around with it :)



 --- Jasper Phillips <ja...@pe...> wrote: > I've
just recently started to use pygame, and am
> rendering in OpenGL as that
> allows smooth full screen scrolling without
> blitting, zooming, etc.  However,
> I still want to change "texture" surfaces, and thus
> need to blit to them.
> This seems simple enough in concept, once you know
> about OpenGL's
> glTexSubImage2d(), but I'm getting strange
> behavior...
> 
> My texture updates work, except on mipmapped
> textures -- then they seem to
> "blend" with the original surface.  Even weirder, if
> multiple blits target
> the same "texels", only the latest blit is "blended"
> with the original
> image!?  Obviously I'm missing something...
> 
> Does anyone know how to make this work correctly
> with mipmapping?  I tried
> changing the "level" argument to glTexSubImage2d(),
> as it's docs allude
> to a connection with mipmapping, but that just
> crashes.
> 
> -Jasper

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