Re: [PyOpenGL-Users] Drawing a texture into a pyglet window

[Brice T. <bps...@gm...>]

Dear Ian,

Thank you for your reply. What I do not understand is that most of this
code work fine when I am using Pyopengl with GLUT but it fails when I use
is with a pyglet window?


On 14 January 2012 04:12, Ian Mallett <geo...@gm...> wrote:

> Hi,
>
> Crashes line 36/38 with index out of bounds.  Changing the index to 0 in
> both cases.
>
> As to your problem:
> -Line 59, you set GL's color to black.  Set it to white.
> -Scale Z by 255.0 on line 82.
>

I am intending to apply a gaussian filter with a shader once I got this bit
working. It is why I am using glFloat. I thought the maximum value in that
case would be 1.0.


>
> Actually, if this is your first OpenGL program, I'm rather
> impressed--you've gotten pretty far.
>

Well, I found bits and pieces by searching the web.


> Tips:
> -Change line 38 to not fullscreen.  You'll find this is easier to debug.
> -Functional programming for right now.  OO design just to wrap up some
> functions is overkill.
> -Be sure to only load your textures once.  Take it out of your draw method.
> -Don't use GL_LUMINANCE.  Use GL_RGB, and GL_RGBA.  If you're all for
> speed and are feeling up to it, always use GL_BGRA, because that's often
> how the GPU represents it internally.
>
- Could you tell me why I should not use GL_LUMINANCE



> -Clean up after yourself with glDeleteTextures.  Eventually, you should
> make a texture class for all your textures, and you'll put this in its
> destructor.
> -Check out some tutorials.
>

> Ian
>

Many thanks

Brice