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Sky texture glitched/Cycles
Confirmed, NormalPublic

Description

System Information
Operating system: Windows-10
Graphics card: GeForce GT 1030/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 446.14

Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-06-25 21:53, hash: rB62aa103d485f
2020-06-26 17:24, hash: rBb7b57e7155ee

Short description of error
Rendering with sky texture give wrong output

Exact steps for others to reproduce the error
Based on the default startup cube with sky texture
GPU CUDA compute gt 1030

CPU compute

Related Objects

Event Timeline

soulfire (vejn) renamed this task from Sky texture glitched to Sky texture glitched/Cycles.Fri, Jun 26, 7:31 PM
soulfire (vejn) created this task.
Marco (nacioss) changed the task status from Needs Triage to Needs Information from User.Mon, Jun 29, 7:20 PM
Marco (nacioss) added a subscriber: Marco (nacioss).

Can't reproduce the issue, try to update the Nvidia drivers, do you get any issues with CPU rendering?

soulfire (vejn) added a comment.EditedMon, Jun 29, 8:18 PM

I updated the drivers. It's the same. CUDA is giving glitched output.

In todays build CPU rendering is OK. Only render with CUDA is glitched.

If I render with SKY LIGHT without Sky texture, rendering is fine.

Does it happen with other scenes too? i mean, try without the sky, if the issue persists then the problem could be related to GPU rathen than the sky.

soulfire (vejn) added a comment.EditedMon, Jun 29, 8:31 PM

Does it happen with other scenes too? i mean, try without the sky, if the issue persists then the problem could be related to GPU rathen than the sky.

I updated previous. With sky light without sky texture, CUDA rendering is fine.

Only sky texture with CUDA rendering is giving issues in every scene.

Marco (nacioss) changed the task status from Needs Information from User to Confirmed.EditedMon, Jun 29, 8:46 PM

Ok, i can reproduce it now, it does only with CUDA + CPU, will dig in the code soon, thank you a lot for the report ;) .
Meanwhile, avoid using such low Sun Size values.
EDIT: Using values from 0.4 to above works well

soulfire (vejn) added a comment.EditedMon, Jun 29, 9:06 PM

Using values from 0.2 to above works well.

It's the same glitch only harder to detect. Zoom in and you'll see.

Sun size 0.2: