Re: [PyOpenGL-Users] OpenGL textures

[Andrew W. <and...@al...>]

Hello,
  You may want to try,

bin = image.GetData()


Thanks
  andrew



On 3/29/07, altern <al...@gm...> wrote:
>
> hi
>
> I am trying to translate a pygame+opengl application to wx+opengl. And I
> am stuck at the function to import images to create OpenGL textures.
>
> I already asked for help on the wxpython list, but nobody seemed to be
> interested on my problem, so i thought there might be some wx-pyopengl
> users in the pyopengl list.
>
> This is the pygame code:
>
> surface = pygame.image.load(path)
> if surface.get_alpha is None:
>         surface = surface.convert()
> else:
>         surface = surface.convert_alpha()
> bin = pygame.image.tostring(surface, "RGBA", 1)
> w, h = surface.get_width(), surface.get_height()
> textid = glGenTextures(1)
> glBindTexture(GL_TEXTURE_2D, textid)
> gluBuild2DMipmaps(GL_TEXTURE_2D, 4, w, h, GL_RGBA, GL_UNSIGNED_BYTE, bin)
> ... and so on ...
>
> and this is the wx code i am using :
>
> image = wx.Image(path, wx.BITMAP_TYPE_ANY, -1)
> bin = image.ConvertToBitmap()
> w,h = image.GetWidth(), image.GetHeight()
> textid = glGenTextures(1)
> glBindTexture(GL_TEXTURE_2D, textid)
> gluBuild2DMipmaps(GL_TEXTURE_2D, 4, w, h, GL_RGBA, GL_UNSIGNED_BYTE, bin)
> ... etc ...
>
> It doesnt crash but the texture that OpenGL displays in not at all the
> image i am importing but some weird random colors. I guess this is the
> bit that i am missing, since printing "image.ConvertToBitmap()" returns
> a wxBitmap instance and not the image data
> bin = pygame.image.tostring(surface, "RGBA", 1)
>
> I have been trying to find out how to access the data an looking for
> examples on the net but did not find anything.
>
> any tips? thanks!
>
> enrike
>
>
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