The new Ashikhmen Shirley shader; firefly explosion with very small lamps regardless of power. #40962

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opened 2014-07-05 23:46:14 +02:00 by Adam Friesen · 7 comments

Adam Friesen commented

2014-07-05 23:46:14 +02:00

System Information
Win7 64 bit, Ivy Bridge i7 CPU, ATI 7xxx GPU, 16 gigs of RAM

Blender Version
Broken: b5982f7
Worked: Probably none.

Short description of error
The new Ashikhmen Shirley shader errors out and produces a massive number of bright fireflies when a small-sized lamp (such as a Sunlamp with size 0.01), is shown onto it. This occurs when it is selected for the normal glossy shader as well, but disappears when you increase the size of the lamp. I added a diffuse cube as a brightness reference to show that it is not due to the lamp's brightness that is causing it.

Exact steps for others to reproduce the error
Open the attached .blend in a post 2.71 build and switch to the rendered view, now set the sunlamp size to something much larger and watch the problem disappear.
Cycles_fireflies.blend

System Information Win7 64 bit, Ivy Bridge i7 CPU, ATI 7xxx GPU, 16 gigs of RAM Blender Version Broken: b5982f7 Worked: Probably none. **Short description of error** The new Ashikhmen Shirley shader errors out and produces a massive number of bright fireflies when a small-sized lamp (such as a Sunlamp with size 0.01), is shown onto it. This occurs when it is selected for the normal glossy shader as well, but disappears when you increase the size of the lamp. I added a diffuse cube as a brightness reference to show that it is not due to the lamp's brightness that is causing it. **Exact steps for others to reproduce the error** Open the attached .blend in a post 2.71 build and switch to the rendered view, now set the sunlamp size to something much larger and watch the problem disappear. [Cycles_fireflies.blend](https://archive.blender.org/developer/F96805/Cycles_fireflies.blend)

Adam Friesen commented

2014-07-05 23:46:14 +02:00

Author

Changed status to: 'Open'

Changed status to: 'Open'

Adam Friesen commented

2014-07-05 23:46:14 +02:00

Author

Added subscriber: @Ace_Dragon

Added subscriber: @Ace_Dragon

Adam Friesen commented

2014-07-05 23:47:35 +02:00

Author

I forgot to add, this issue is limited to the Ashikhmen behavior only, Beckmann and GGX are unaffected when used in both shader node types.

I forgot to add, this issue is limited to the Ashikhmen behavior only, Beckmann and GGX are unaffected when used in both shader node types.

Thomas Dinges commented

2014-07-06 01:27:48 +02:00

Owner

Added subscriber: @ThomasDinges

Added subscriber: @ThomasDinges

Sergey Sharybin self-assigned this 2014-08-19 14:16:39 +02:00

blender-admin commented

2014-08-19 16:58:58 +02:00

This issue was referenced by 7bc87a372e

This issue was referenced by 7bc87a372e40b6adc852d42c60ea6aca55aaa7fb

Sergey Sharybin commented

2014-08-19 17:01:58 +02:00

Owner

Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2014-08-19 17:01:58 +02:00

Sergey Sharybin commented

2014-08-19 17:01:58 +02:00

Owner

Closed by commit 7bc87a372e.

Closed by commit 7bc87a372e.

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