Reflections of sun are blocky in Evee when rougness is on #67322

Closed
opened 2019-07-20 14:32:59 +02:00 by Vyacheslav Kobozev · 11 comments

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86

Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-18 14:52, hash: 38d4483c6a

Short description of error
Reflections of sun are blocky in Evee
8943910.jpg
8954510.jpg

When roughness running up, surface start to look extremely bad. It is not depend on shader-type (GGX or Beckman for example).
2019-07-20_15-19-24.mp4

Exact steps for others to reproduce the error
Try to tune with material rougness here wint Evee
untitled.blend
HDRI maps for test:
https://hdrihaven.com/hdri/?h=red_hill_straight
https://hdrihaven.com/hdri/?h=colosseum

2019-07-20_16-22-55.mp4

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86 **Blender Version** Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-18 14:52, hash: `38d4483c6a` **Short description of error** Reflections of sun are blocky in Evee ![8943910.jpg](https://archive.blender.org/developer/F7619956/8943910.jpg) ![8954510.jpg](https://archive.blender.org/developer/F7619955/8954510.jpg) When roughness running up, surface start to look extremely bad. It is not depend on shader-type (GGX or Beckman for example). [2019-07-20_15-19-24.mp4](https://archive.blender.org/developer/F7619970/2019-07-20_15-19-24.mp4) **Exact steps for others to reproduce the error** Try to tune with material rougness here wint Evee [untitled.blend](https://archive.blender.org/developer/F7619969/untitled.blend) HDRI maps for test: https://hdrihaven.com/hdri/?h=red_hill_straight https://hdrihaven.com/hdri/?h=colosseum [2019-07-20_16-22-55.mp4](https://archive.blender.org/developer/F7620274/2019-07-20_16-22-55.mp4)

Added subscriber: @Vyach

Added subscriber: @Vyach

Added subscriber: @zeauro

Added subscriber: @zeauro

You forgot to pack texture before sending your .blend file.

It looks like sun higlight is blocky because of settings into Indirect Lighting panel.
If you increase Filter Quality and Cubemap Size settings to maximum, you should obtain a much better result.

You forgot to pack texture before sending your .blend file. It looks like sun higlight is blocky because of settings into Indirect Lighting panel. If you increase Filter Quality and Cubemap Size settings to maximum, you should obtain a much better result.

@zeauro added two links
Sadly filter quality just blur and pieces.
And even if blocks blurred and mixed, there is too high and sharp pinch to the pole of world. Check second video.

@zeauro added two links Sadly filter quality just blur and pieces. And even if blocks blurred and mixed, there is too high and sharp pinch to the pole of world. Check second video.

pinching pole is not depend on rotation of environment, or object`s rotation. Glitch appearance is not depends on streight of world illuminance

2019-07-20_16-48-17.mp4

pinching pole is not depend on rotation of environment, or object`s rotation. Glitch appearance is not depends on streight of world illuminance [2019-07-20_16-48-17.mp4](https://archive.blender.org/developer/F7620287/2019-07-20_16-48-17.mp4)

Added subscriber: @tibor81

Added subscriber: @tibor81

You have obviously wrong settings. Try to set the "clamp glossy" value to 2, increase the "Cubemap Size" to at least 1024 and set the "Filter Quality" to 8 and it should work!glossy-bug.jpg

You have obviously wrong settings. Try to set the "clamp glossy" value to 2, increase the "Cubemap Size" to at least 1024 and set the "Filter Quality" to 8 and it should work!![glossy-bug.jpg](https://archive.blender.org/developer/F7623095/glossy-bug.jpg)

@tibor81 clamp is just cutting brightness of artifacts. But wrong highlight blur is still there. And resolution of map makes em even sharper
Here is Clamp to 1.0, roughness 0.27, cubemap 2048

9312237.jpg

@tibor81 clamp is just cutting brightness of artifacts. But wrong highlight blur is still there. And resolution of map makes em even sharper Here is Clamp to 1.0, roughness 0.27, cubemap 2048 ![9312237.jpg](https://archive.blender.org/developer/F7623113/9312237.jpg)

Here a Pic with roughness set to 0.2. Looks fine to me! Don't Forget to set the Filter Quality to 8. It makes a big difference!glossy-bug.jpg

Here a Pic with roughness set to 0.2. Looks fine to me! Don't Forget to set the Filter Quality to 8. It makes a big difference!![glossy-bug.jpg](https://archive.blender.org/developer/F7623131/glossy-bug.jpg)

@tibor81
Filter 8, clamp 2 (because lower clamp looks reaaly dull), 512px cubemap
Pinched pole still there.
NewCanvas3.jpg

AFAIK it is impossible to bake different cubemaps separately with different settings to match every material with different roughness.
And anyway it is not a good workflow.

And it is still bug or wron algorythm, that make filtering distribution weird.

@tibor81 Filter 8, clamp 2 (because lower clamp looks reaaly dull), 512px cubemap Pinched pole still there. ![NewCanvas3.jpg](https://archive.blender.org/developer/F7623147/NewCanvas3.jpg) AFAIK it is impossible to bake different cubemaps separately with different settings to match every material with different roughness. And anyway it is not a good workflow. And it is still bug or wron algorythm, that make filtering distribution weird.

Closed as duplicate of #67202

Closed as duplicate of #67202
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Reference: blender/blender#67322
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