EEVEE-Next: Area Lights Clip Light Spread Relative to Light Position #119334

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Timothy Cook · 2024-03-11T18:02:01+01:00

Timothy Cook commented

2024-03-11 18:02:01 +01:00

System Information
Operating system: Windows-10-10.0.22631-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 551.61

Blender Version
Broken: version: 4.2.0 Alpha, branch: main, commit date: 2024-03-10 18:36, hash: 703353b5dafc
Worked: N/A

Short description of error
If I have an above Area light, not touching or intersecting with the ceiling, I get a line artifact along the wall. It’s very noticeable with a light line with the light’s shadows set to soft, and has a solid cut off line when set to hard shadows.
Funny thing is, if I lower the light by half a meter the line then raises to meet the edge of the light. It’s almost as if invisible barn doors are pinned in space half a meter below the light at 45 deg. and lowering the light opens the barn doors to full.
Thanks!

Exact steps for others to reproduce the error
Open provided Blend file
Enable Eevee Next
Move light position on the Z axis relative to the ceiling to see the shadows line move in the opposite direction of light movement. Also noticeable but less pronounce with the light's shadows set to soft.

**System Information** Operating system: Windows-10-10.0.22631-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 551.61 **Blender Version** Broken: version: 4.2.0 Alpha, branch: main, commit date: 2024-03-10 18:36, hash: `703353b5dafc` Worked: N/A **Short description of error** If I have an above Area light, not touching or intersecting with the ceiling, I get a line artifact along the wall. It’s very noticeable with a light line with the light’s shadows set to soft, and has a solid cut off line when set to hard shadows. Funny thing is, if I lower the light by half a meter the line then raises to meet the edge of the light. It’s almost as if invisible barn doors are pinned in space half a meter below the light at 45 deg. and lowering the light opens the barn doors to full. Thanks! **Exact steps for others to reproduce the error** Open provided Blend file Enable Eevee Next Move light position on the Z axis relative to the ceiling to see the shadows line move in the opposite direction of light movement. Also noticeable but less pronounce with the light's shadows set to soft.

Area Light Shadow Bug.blend

900 KiB

EEVEE Next Lowered Light.jpg

602 KiB

EEVEE Next Hard Shadows.jpg

724 KiB

EEVEE Next Soft Shadows.jpg

886 KiB