Aaron Kimbrell edba81ff7c refactor(ugc): Embree is required; the hand-written ray hierarchies are gone ...

Embree 4 (always built) replaces the UGC server's own bounding volume
hierarchies (the nearest-hit one and the occlusion rays' any-hit one), with no
fallback to them. ray_backend is embree (default) or hiprt (optional build;
Embree when it can't be used).

Settings, stored options and stats that say builtin still read: it is embree
(UgcRays::Parse, UgcProcessOptions::Parse). The dashboard's picker,
/reprocessproperty and --make-model offer embree and hiprt.

Tests: the backends are compared with Embree (hiprt when built), Embree against
rays whose hits are known, and the clutter's occlusion against what the old
hierarchy worked out (296 vertices summing to 114.5, 26 open, 183 dark); the
pinned model hashes are unchanged with Embree.

Check: ray_backend=builtin in an ini still starts and uses embree; the
settings page offers Embree and HIPRT.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-09-29 12:29:08 -05:00

..

Bricks

fix(ugc): transparent bricks drawn see-through in mixed models; dUgcServer in folders by role

2026-09-28 22:31:26 -05:00

Formats

fix(ugc): glitter flecks look like LEGO glitter

2026-09-29 00:40:10 -05:00

Model

fix(ugc): glitter flecks look like LEGO glitter

2026-09-29 00:40:10 -05:00

Processing

refactor(ugc): remove the path traced hidden-face method; the renders are the only one

2026-09-29 12:29:08 -05:00

Render

refactor(ugc): Embree is required; the hand-written ray hierarchies are gone

2026-09-29 12:29:08 -05:00

CMakeLists.txt

feat(ugc): ray_backend=hiprt traces on the GPU with HIPRT and Orochi (optional build)

2026-09-29 12:29:08 -05:00

UgcServer.cpp

refactor(ugc): Embree is required; the hand-written ray hierarchies are gone

2026-09-29 12:29:08 -05:00