In-world text (name tags, hover text) is not occluded by world geometry #487

New issue

Closed

opened 2026-10-06 13:14:21 +00:00 by sky_line · 0 comments

sky_line commented

2026-10-06 13:14:21 +00:00

Owner

Follow-up to #468.

In-world 2D text (name tags, hover/floating text, chat bubbles, beacon labels) draws on top of world geometry. LL's viewer depth-tests these against the scene, so a name tag behind a wall or a hill is hidden (or faded). In Slipstream it shows through.

Cause: our Vulkan UI/overlay text path has never depth-tested. #468 moved in-world text into a pre-HUD layer so HUDs now cover it correctly, but that layer is still colour-only with no scene depth.

Fix direction:

Give the pre-HUD text layer access to the resolved scene depth (render-scale / FSR aware, reversed-Z as the world pass uses).
Test each text quad at its anchor depth (one depth sample per label, not per glyph) and either cull it or fade it the way LL does for occluded tags.
HUD-attached text and the HUD pass must stay depth-free.

Test: stand an avatar behind a wall / terrain; its name tag and hover text should hide. Check with render scale < 1 and FSR on, in mirrors/snapshots, and that HUD text is unaffected.

Follow-up to #468. In-world 2D text (name tags, hover/floating text, chat bubbles, beacon labels) draws on top of world geometry. LL's viewer depth-tests these against the scene, so a name tag behind a wall or a hill is hidden (or faded). In Slipstream it shows through. **Cause:** our Vulkan UI/overlay text path has never depth-tested. #468 moved in-world text into a pre-HUD layer so HUDs now cover it correctly, but that layer is still colour-only with no scene depth. **Fix direction:** - Give the pre-HUD text layer access to the resolved scene depth (render-scale / FSR aware, reversed-Z as the world pass uses). - Test each text quad at its anchor depth (one depth sample per label, not per glyph) and either cull it or fade it the way LL does for occluded tags. - HUD-attached text and the HUD pass must stay depth-free. **Test:** stand an avatar behind a wall / terrain; its name tag and hover text should hide. Check with render scale < 1 and FSR on, in mirrors/snapshots, and that HUD text is unaffected.

sky_line added the

labels

2026-10-06 13:14:21 +00:00

sky_line added this to the Slipstream project

2026-10-06 15:04:13 +00:00

sky_line added the

status

testing