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956 B
956 B
References
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Jon Blow articles in Game Developer Magazine:
Conclusions
Here are some of my findings:
- Windowed sinc filters with radius greater than 3 produce too many ringing artifacts.
- For good results with non power of two textures or arbitrary scales, you must use polyphase filters.
- Sampling the polyphase filter with a box filter greatly improves the quality.
- Using a triangle filter looks even better, but the difference is small.
- For most cases box does a great job.
- The Lanczos and Kaiser windows produce indistinguishable results.
- Gamma correction produces more correct results, but sometimes enhances the ringing artifacts.