Color Smudge Brush Engine — Krita Manual 5.2.0 documentation
Blending Modes: A Complete Guide for Graphic and Web Design
Blend modes - Wikipedia
A cache-friendly sampling strategy for texture-based volume rendering on GPU - ScienceDirect
Blending modes - Corel Vector Help
algorithm - Mix two non-opaque colors with "hue" blend mode - Stack Overflow
Week 4 Assignment | Travis Dull - Digital Art Studio
A mod I recently released which accelerates biome color blending. This lets you to set the blend radius all the way up to 29x29 without any noticable performance impact. It's available on
Alpha compositing - Wikipedia
What colour space or mixing algorithm should I use for "watercolor-like" colour mixing in-game? - Game Development Stack Exchange