Harvest the power of the GPU for awesome special effects
summary
Shows how to offload rendering and computation to the GPU using Arcade library and shadertoy.com style GLSL shaders, with concrete numbers: >40,000 bodies in an N‑body demo (~1.6 billion pairwise calcs per frame, ~100 billion/sec) and sprite counts jumping from ~2,000 (CPU/Pygame) to tens of thousands or even millions on GPU. Builds a glowy movable ball and a starfield; shader+Python is under ~50 lines; the N‑body demo runs ~30 fps on a 7‑year‑old GPU.
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chapters (23)
- 0:00Intro
- 1:20Outline
- 3:24The oldschool way
- 5:48End body simulation
- 6:16Gravity calculations
- 6:58Shaders
- 7:59Shadertoy
- 8:56Getting a window
- 10:51Adding a shader
- 11:57Writing the shader
- 12:30Normalizing the coordinates
- 13:19Shader
- 16:30Shift
- 16:52Aspect Ratio
- 17:44Circles
- 19:28Python
- 19:49Glory Ball
- 20:07Position and Color
- 21:03Color
- 21:13Uniform
- 22:28Subtraction
- 22:59Python code
- 23:34Shader tutorials
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