Sun orb / glow renders through opaque meshes (visible on a cabin's interior roof) #842

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opened 2026-10-18 06:12:05 +00:00 by sky_line · 1 comment

sky_line commented

2026-10-18 06:12:05 +00:00

Owner

The sun's orb / glow shows through opaque meshes: a soft round disc is visible on the inside of a cabin's wooden roof, at the sun's screen position, as if the roof weren't there. Screenshot below.

Candidates (narrow with live toggles)

God rays (RenderVKGodRays; the owner runs 3): the shafts / source glow composited without the sun's occlusion, e.g. the beam visibility or RT mask not stopping the source term indoors. Toggle RenderVKGodRays 0.
Glow / bloom of the sun disc: the sky's sun disc written into the glow source without a depth test, so its bloom lands on whatever covers it. Toggle RenderGlow 0.
Atmosphere / haze: a sun mie halo added to near geometry. #816 (beta 13) reworked atmosphere constants and haze reuse along the same ray, so check that the halo term scales with haze amount / distance (≈0 for a roof a few metres away).
Sky pass ordering / depth: the sun disc drawn after the opaque pass with depth test off, or against a depth target that doesn't hold the roof (e.g. a half-res / pre-pass depth mismatch).

Expected

An opaque mesh between the camera and the sun fully hides the sun disc and its glow.

The **sun's orb / glow shows through opaque meshes**: a soft round disc is visible on the inside of a cabin's wooden roof, at the sun's screen position, as if the roof weren't there. Screenshot below. ### Candidates (narrow with live toggles) - **God rays** (`RenderVKGodRays`; the owner runs 3): the shafts / source glow composited without the sun's occlusion, e.g. the beam visibility or RT mask not stopping the source term indoors. Toggle `RenderVKGodRays` 0. - **Glow / bloom of the sun disc:** the sky's sun disc written into the glow source without a depth test, so its bloom lands on whatever covers it. Toggle `RenderGlow` 0. - **Atmosphere / haze:** a sun mie halo added to near geometry. #816 (beta 13) reworked atmosphere constants and haze reuse along the same ray, so check that the halo term scales with haze amount / distance (≈0 for a roof a few metres away). - **Sky pass ordering / depth:** the sun disc drawn after the opaque pass with depth test off, or against a depth target that doesn't hold the roof (e.g. a half-res / pre-pass depth mismatch). ### Expected An opaque mesh between the camera and the sun fully hides the sun disc and its glow. ![sun through roof](https://git.slipstreamviewer.org/attachments/14bd1f82-2c05-44af-820d-31ab90f0b51a)

Screenshot_20261018_021125.png

422 KiB

sky_line added the

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2026-10-18 06:12:05 +00:00

sky_line added this to the Slipstream project

2026-10-18 06:12:05 +00:00