Fast Blue Noise Generator
added on 2021/10/13 @ 18:27:03 | 213 views| category: gamedev

Performance and precision are two main drawbacks of all blue noise generators. A 1024×1024 image requires hours or even days to generate. And that is not acceptable. Moreover, the 8-bit precision cannot represent a large noise image (more than 16×16) with perfect spatial accuracy because there will be multiple pixels with the same value. We made a GPU blue noise generator that uses fast Fourier transformation and provides a blazing-fast generation. A 1024×1024 image generation is performing in less than 6 minutes on GeForce 2080 Ti class GPU. The output noise image can be in 16-bit integer or 32-bit floating-point precision.

tags: #gamedev #blue-noise