164dda4760
ShaderCanvas rewrite: - IntersectionObserver-driven rendering: WebGL context only created when canvas enters viewport, released when it leaves. Prevents context starvation when 20+ shaders are in the feed simultaneously. - Graceful fallback UI when WebGL context unavailable (hexagon + 'scroll to load') - Context loss/restore event handlers - powerPreference: 'low-power' for feed thumbnails - Pause animation loop when off-screen (saves GPU even with context alive) - Separate resize observer (no devicePixelRatio scaling for feed — saves memory) Fixed shaders: - Pixel Art Dither: replaced mat4 dynamic indexing with unrolled Bayer lookup (some WebGL drivers reject mat4[int_var][int_var]) - Wave Interference 2D: replaced C-style array element assignment with individual vec2 variables (GLSL ES 300 compatibility) |
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