Eevee doesn't render shadow #76360

Closed
opened 2020-05-03 02:45:31 +02:00 by adil aljasem · 6 comments

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 980 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.59

Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: 77d23b0bd7
Worked: (optional)

Short description of error
the shadow work good in viewport but when i rendered the scene the shadow Disappear

Exact steps for others to reproduce the error
[Please describe the exact steps Secne 7.blend needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 980 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.59 **Blender Version** Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-02-12 16:20, hash: `77d23b0bd7` Worked: (optional) **Short description of error** the shadow work good in viewport but when i rendered the scene the shadow Disappear **Exact steps for others to reproduce the error** [Please describe the exact steps [Secne 7.blend](https://archive.blender.org/developer/F8508381/Secne_7.blend) needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)]
Author

Added subscriber: @aaadel

Added subscriber: @aaadel
Member

Added subscribers: @fclem, @EAW

Added subscribers: @fclem, @EAW
Member

Changed status from 'Needs Triage' to: 'Archived'

Changed status from 'Needs Triage' to: 'Archived'
Evan Wilson self-assigned this 2020-05-03 05:26:39 +02:00
Member

When starting Blender using blender_factory_startup.cmd

The debug output states:

Fragment info
-------------
Internal error: assembly compile error for fragment shader at offset 1626689:
  - error message --
line 65984, column 1:  error: too many instructions
  - internal assembly text --
!!NVfp5.0
OPTION ARB_blend_func_extended;
OPTION ARB_fragment_program_shadow;```


This is a known GPU and driver limitation with EEVEE.

> [There is a limit of instruction a shader can contain in Eevee, and this is dependant on which driver and GPU you use.
> You use Noise Texture which are maybe the most expensive node after the BSDFs. So you run out of instructions.](https://developer.blender.org/T68735#754704)


I would try to remove textures in the scene, or render with Cycles.

See reports #68735 and #74644 for additional details.

Following @fclem's lead in #74644, I'll close this as it is a known issue.
When starting Blender using `blender_factory_startup.cmd` The debug output states: ```GPUShader: linking error: Fragment info ------------- Internal error: assembly compile error for fragment shader at offset 1626689: - error message -- line 65984, column 1: error: too many instructions - internal assembly text -- !!NVfp5.0 OPTION ARB_blend_func_extended; OPTION ARB_fragment_program_shadow;``` This is a known GPU and driver limitation with EEVEE. > [There is a limit of instruction a shader can contain in Eevee, and this is dependant on which driver and GPU you use. > You use Noise Texture which are maybe the most expensive node after the BSDFs. So you run out of instructions.](https://developer.blender.org/T68735#754704) I would try to remove textures in the scene, or render with Cycles. See reports #68735 and #74644 for additional details. Following @fclem's lead in #74644, I'll close this as it is a known issue.
Author

The Textures in the scene are very light

i think its only 3 or 4 textures with resolution 1024x1024

the scene in general is very light and doesn't have many details

The Textures in the scene are very light i think its only 3 or 4 textures with resolution 1024x1024 the scene in general is very light and doesn't have many details
Author

if you try to render at fram 773 you will see the shadow

if you try to render at fram 773 you will see the shadow
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Reference: blender/blender#76360
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