wgpu: extract overlays (axis, pivot, section, marquee) into WgpuOverlayRenderer

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WgpuViewportWindow.cpp had ~1100 lines of pipeline/shader/buffer plumbing
for the axis indicator, pivot gizmo, section visualizer, and marquee
drag rect. Mirroring the GL backend's split, that lives in its own class
now; the viewport keeps the camera/cull/draw loop and hands the renderer
a per-frame WgpuOverlayFrame snapshot for each encode call.

No behavioural change — pixel-identical screenshot on basic.ifcview.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

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This commit is contained in:

Dion Moult

2026-05-30 19:58:59 +10:00

parent 07913e2832

commit 814ae8304f

4 changed files with 1249 additions and 1197 deletions

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src/ifcviewer-wgpu/WgpuViewportWindow.cpp

+39 -1119

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