Mipmapping for canvas. Ideas and comments.
lukast.dev at gmail.com
Thu Jul 23 22:35:34 CEST 2009
On Thursday 23 July 2009 16:49:22 Dmitry Kazakov wrote:
> >> Lukas is looking into that.
> > OpenGL uses some small textures (tiles) that are mapped on planes
> > (quads) and when
> > the image is scaled, you can decide what algorithm is used. See 
> > There are also mip-map versions. I used bi-linear interpolation for
> > zoom til 2.0 (200 %), and nearest neighbohour at higher zoom.
> Btw, Lukas, does openGL canvas do resampling in his own classes? Does
> it use hardware acceleration for that?
I must say that this is not my expertise and I don't see much into it.
I suppose that the image is tiled to textures and then OpenGL handle
And OpenGL can do it with hardware if hardware supports it.
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