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

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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>
This commit is contained in:
Aaron Kimbrell
2026-09-29 12:15:50 -05:00
parent 07154c58d2
commit edba81ff7c
14 changed files with 107 additions and 430 deletions
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2
docs/Commands.md
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@@ -137,7 +137,7 @@ These commands are primarily for development and testing. The usage of many of t
|resurrect|`/resurrect`|Resurrects the player.|8|
|setminifig|`/setminifig <body part> <minifig item id>`|Alters your player's minifig. Body part can be one of "Eyebrows", "Eyes", "HairColor", "HairStyle", "Pants", "LeftHand", "Mouth", "RightHand", "Shirt", or "Hands". Changing minifig parts could break the character so this command is limited to GMs.|1|
|testmap|`/testmap <zone> (clone-id) (instance-id) (spawn-point)`|Transfers you to the given zone by id and clone id and then spawns you at the specified spawn point if one was specified. Ignores instance-id for now. Aliases: `/tm`.|1|
|reprocessproperty|`/reprocessproperty [builtin\|embree\|hiprt] [off\|oidn]`|Has the UGC server make every brick built model on the property you are on again, with the current UGC settings or the processing options given, in any order (ray backend, denoising; see docs/UgcServer.md, "Processing options"). When they are all made (at most 15 minutes), everyone on the property is sent back into it, so their game downloads the new meshes. Aliases: `/reloadpropertymodels`.|8|
|reprocessproperty|`/reprocessproperty [embree\|hiprt] [off\|oidn]`|Has the UGC server make every brick built model on the property you are on again, with the current UGC settings or the processing options given, in any order (ray backend, denoising; see docs/UgcServer.md, "Processing options"). When they are all made (at most 15 minutes), everyone on the property is sent back into it, so their game downloads the new meshes. Aliases: `/reloadpropertymodels`.|8|
|reportproxphys|`/reportproxphys`|Prints to console the position and radius of proximity sensors.|9|
|spawnphysicsverts|`/spawnphysicsverts`|Spawns a 1x1 brick at all vertices of phantom physics objects|8|
|teleport|`/teleport <x/source player> (y) <z/target player>`|Teleports you. If no Y is given, you are teleported to the height of the terrain or physics object at (x, z). Any of the coordinates can use the syntax of an exact position (10.0), or a relative position (~+10.0). A ~ means use the current value of that axis as the base value. Addition or subtraction is supported (~+10) (~-10). If source player and target player are players that exist in the world, then the source player will be teleported to target player. Aliases: `/tele`, `/tp`.|6|