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We recently made a one-line change that massively reduced GPU usage, specifically: - Intel integrated graphics: 60% reduction - AMD Radeon: 40% reduction - A
by feross 6y ago
We recently made a one-line change that massively reduced GPU usage, specifically:
- Intel integrated graphics: 60% reduction
- AMD Radeon: 40% reduction
- Apple M1: 10% reduction
What was the change? We removed "opacity: 85%" from the <canvas> element. We were using opacity to slightly darken the animation but now we just darken the texture image directly.
- johnmaguire 6y agoWould love to read more about this.
- feross 6y agoWe just massively reduced GPU utilization on Wormhole for a second time (as of May 12). Give it a try and let me know if you still have issues. GPU utilization when window is full screen, 4K resolution: Chrome: - Radeon: 70% -> 15% - M1: 65% -> 29% Firefox: - Radeon: 60% -> 8% - M1: 55% -> 23% Safari: - 15% Radeon + 75% Intel -> 8% Radeon + 8% Intel - M1: 75% -> 35% A bit more detail: We're running into the limits of WebGL. It seems just rendering a white screen at 60fps at 4K resolution is enough to make people's fans turn on. So we reduce the frame-rate when the wormhole is not warping (render every 3rd frame). We also lower the resolution and scale it up.