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Blurry 2D rendering

Graphics and GPU Programming Programming OpenGL

Started by Jazonxyz August 11, 2009 10:56 PM

1 comment, last by zedz 14 years, 8 months ago

Jazonxyz

138

Author

August 11, 2009 10:56 PM

Ive created a 2d engine in opengl but I have a problem. The textures I render come out blurry. Im running on an old GeForce MX2 and further upgrade of hardware is not possible. I use gluBuildMipMaps for uploading textures. How can I make textures come out with pixel perfection?

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idinev

236

August 11, 2009 11:22 PM

Possible reasons:
1) your texture is NPOT. Make it POT.
2) add 0.375 offset to x:y

zedz

291

August 12, 2009 01:37 AM

as idinev implys gluBuildMipMaps first resizes texture to POT (power of two)
this can create distortions,
also try GL_NEAREST mapping

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