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Matthew James SivakandClaude Opus 5.5
c678ab06d5
A debugging toggle (`view.frameRate`, `{show?}`, a checked item in a new Help ▸ Debug
submenu; LIGHTCRAFT_FPS=1 starts with it on; never saved). In the window's top-right
corner it draws frames per second and the worst over the last second, each frame's UI
CPU time against its time spent waiting (vsync, or the GPU), the latest whole-frame
and zoom-window render times, the render queue, renders thrown away as superseded
(Renderer::discarded), the GPU adapter and its memory, and a graph of the last frames
with a tick where a render arrived. It keeps the window repainting while shown and
logs the same numbers once a second (`fps-hud:`), so scripted drags can be measured.
Perf::host_frame_ms (the frame's CPU time as eframe reports it) is added as #1009
adds it, identically.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>