runtime(zones,#804): in-proc D3D12 — MODE_ZONES composite, binary wish, opt-in feather - #810
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runtime(zones,#804): in-proc D3D12 — MODE_ZONES composite, binary wish, opt-in feather#810dfattal wants to merge 1 commit into
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…h, per-zone opt-in feather In-proc D3D12 leg of the #801/#803 backend-parity port (mirrors the VK reference and the D3D11 leg). This is an ENGINE-FACING zones path: the Unity Display Provider's desktop-avatar sample (3D zone + Local2D) runs zones frames on comp_d3d12 today. #801: - masked_composite PS: alpha_over bool -> composite_mode (0 hard M-lerp / 1 #491 premul over / 2 MODE_ZONES: final = twod + (1-a)*(M*weave)). - Auto wish raster goes BINARY (one rect-array clear at 1.0, no ring steps); still reuses the implicit-mask resources and re-records every zones frame. - d3d12_update_zone_wish_state now ALWAYS maintains the binary auto raster and returns it as the composite mask; an explicit frame wish stages and routes to zone_publish_res only (publish-only, never a blend gate). #803 (XrDisplayZoneFeatherDXR): - New d3d12_update_zone_feather_mask into its OWN R8 resources (per-zone hard or inward 0->1 ramp, 2px steps, 64px ramp cap, small-zone clamp; re-rastered per feathered zones frame, VK-style). Published wish stays binary; raster failure falls back to the binary mask. One-shot composite log now carries mode=N. Legacy frames byte-identical (zones_frame-gated; LERP/ALPHA_OVER semantics unchanged). NEEDS avatar-style hardware eyeball before merge (Unity desktop-avatar on this backend): expected deltas = hard zone edges unless feather requested, Local2D bubble now composites by alpha over weave inside zones. Refs #800, #801, #803. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This was referenced Jul 27, 2026
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In-proc D3D12 leg of #804 (leg 3; legs 1-2 = #808/#809). Mirrors the VK reference (#801/#803) and the D3D11 leg (#809) onto
comp_d3d12_renderer+comp_d3d12_compositor.Engine-facing: per the corrected #804 analysis, Unity's Display Provider runs multi-zone display-zones on this backend — the shipping
desktop-avatarsample (3D zone + Local2D bubble) changes pixels with this PR.#801
masked_compositePS:alpha_over→composite_mode(2 = MODE_ZONES:twod + (1−a)·(M·weave)).d3d12_update_zone_wish_statealways maintains the binary raster and returns it as the composite mask; an explicit frame wish stages tozone_publish_resonly (publish-only).#803
d3d12_update_zone_feather_maskinto its own R8 resources (per-zone hard/inward ramp, 2px steps, 64px cap, small-zone clamp). Published wish stays binary; failure falls back binary.One-shot
D3D12 Local2D composite … (mode=N)log.Expected deltas / regression control
zones_frame-gated).Refs #800 #801 #803 #804.
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