Assign Materials on Faces of an object #78390

New Issue

Antifreeze · 2020-06-28T20:37:20+02:00

Antifreeze commented

2020-06-28 20:37:20 +02:00

System Information
Operating system: Linux-5.7.6-arch1-1-x86_64-with-glibc2.29 64 Bits
Graphics card: AMD KAVERI (DRM 2.50.0, 5.7.6-arch1-1, LLVM 10.0.0) X.Org 4.5 (Core Profile) Mesa 20.1.2

Blender Version
Broken: version: 2.83.1, branch: makepkg (modified), commit date: 2020-06-25 09:47, hash: 8289fc688b (I've got it from pacman)
Worked: I haven't checked this exact function on other versions so, unknown

Short description of error
Assigning materials on faces of an object breaks the model and doesn't work properly.

Exact steps for others to reproduce the error
My materials:

I've created a sphere with a material 001. Than I've selected certain faces of this sphere and applied material 002 on them:

That's a result of applying the material: faces I've selected disappeared and there is something broken inside. That's what I saw when selected certain faces:

As you can see, this broken black thing changed its shape and colored itself in material 002.

Now then I've selected other rings that were in material 001 previously and assigned and assigned material 003 on them.

Surprisingly, they were colored to material 002

That's what happened when I've assigned material 004 on other selected rings (those rings I've applied the material on are selected in the picture)

test2.blend

**System Information** Operating system: Linux-5.7.6-arch1-1-x86_64-with-glibc2.29 64 Bits Graphics card: AMD KAVERI (DRM 2.50.0, 5.7.6-arch1-1, LLVM 10.0.0) X.Org 4.5 (Core Profile) Mesa 20.1.2 **Blender Version** Broken: version: 2.83.1, branch: makepkg (modified), commit date: 2020-06-25 09:47, hash: `8289fc688b` (I've got it from pacman) Worked: I haven't checked this exact function on other versions so, ***unknown*** **Short description of error** ***Assigning materials** on faces* of an object breaks the model and doesn't work properly. **Exact steps for others to reproduce the error** *My materials:* ![2020-06-28-211724_321x227_scrot.png](https://archive.blender.org/developer/F8651906/2020-06-28-211724_321x227_scrot.png) I've created a sphere with a *material **001***. Than I've selected certain faces of this sphere and applied *material **002*** on them: ![2020-06-28-210153_1184x865_scrot.png](https://archive.blender.org/developer/F8651886/2020-06-28-210153_1184x865_scrot.png) That's a result of applying the material: faces I've selected disappeared and there is something broken inside. That's what I saw when selected certain faces: ![2020-06-28-211318_811x677_scrot.png](https://archive.blender.org/developer/F8651890/2020-06-28-211318_811x677_scrot.png) As you can see, this broken black thing changed its shape and colored itself in *material **002***. Now then I've selected other rings that were in *material **001*** previously and assigned and assigned *material **003*** on them. ![2020-06-28-211547_623x612_scrot.png](https://archive.blender.org/developer/F8651896/2020-06-28-211547_623x612_scrot.png) Surprisingly, they were colored to *material **002*** That's what happened when I've assigned *material **004*** on other selected rings (those rings I've applied the material on are selected in the picture) ![2020-06-28-211716_658x683_scrot.png](https://archive.blender.org/developer/F8651903/2020-06-28-211716_658x683_scrot.png) ![2020-06-28-211702_674x703_scrot.png](https://archive.blender.org/developer/F8651902/2020-06-28-211702_674x703_scrot.png) [test2.blend](https://archive.blender.org/developer/F8651921/test2.blend)

Antifreeze commented

2020-06-28 20:37:20 +02:00

Added subscriber: @antifreeze9

Antifreeze commented

2020-06-28 20:54:33 +02:00

Note: I've tried using version from official site and got the same result

*Note:* I've tried using version from official site and got the same result

Evan Wilson commented

2020-06-29 03:46:42 +02:00

Added subscribers: @fclem, @EAW

Evan Wilson commented

2020-06-29 03:46:42 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Evan Wilson commented

2020-06-29 03:46:42 +02:00

I cannot reproduce the issue using 2.83.1 or 2.90 on Win10.
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 470/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 388.13

This looks similar to #74024 (see https://developer.blender.org/T74024#922564), which was fixed with 6d8b6aec18. That fix only applies to AMD VERDE. @fclem, you might have to add another AMD card/driver to the GG.unused_fb_slot_workaround club.

Try starting Blender with --debug --debug-gpu --debug-gpu-force-workarounds to check if the workarounds fix this issue for you. Try both 2.83.1 and 2.90. Please use the versions from
https:*builder.blender.org/download/ & https:*www.blender.org/download/ so we can continue to eliminate the possibility of it being an unofficial build issue.

I cannot reproduce the issue using 2.83.1 or 2.90 on Win10. Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 470/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 388.13 --- This looks similar to #74024 (see https://developer.blender.org/T74024#922564), which was fixed with 6d8b6aec18. That fix only applies to AMD VERDE. @fclem, you might have to add another AMD card/driver to the `GG.unused_fb_slot_workaround` club. Try starting Blender with `--debug --debug-gpu --debug-gpu-force-workarounds` to check if the workarounds fix this issue for you. Try both 2.83.1 and 2.90. Please use the versions from https:*builder.blender.org/download/ & https:*www.blender.org/download/ so we can continue to eliminate the possibility of it being an unofficial build issue.

Antifreeze commented

2020-06-29 16:27:02 +02:00

Yes, I've tried to do the same thing on the pacman build + official build on Intel GPU machine and wasn't able to reproduce this bug too so that seems like mesa bug.
On AMD machine tho I'm getting the same issue with both 2.83.1 and 2.90 (official build).

I was trying to run Blender 2.83.1 (official build) with

--debug --debug-gpu --debug-gpu-force-workarounds

but it crashed on creating materials this time.
(from blender.crash.txt)

# Blender 2.83.1, Commit date: 2020-06-25 09:47, Hash 8289fc688b3e
bpy.ops.object.select_all(action='SELECT')  # Operator
bpy.ops.object.delete(use_global=False, confirm=False)  # Operator
Deleted 3 object(s)  # Info
bpy.ops.mesh.primitive_uv_sphere_add(radius=1, enter_editmode=False, align='WORLD', location=(0, 0, 0))  # Operator
bpy.ops.transform.resize(value=(2.7876, 2.7876, 2.7876), orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=True, use_proportional_edit=False, proportional_edit_falloff='SMOOTH', proportional_size=1, use_proportional_connected=False, use_proportional_projected=False)  # Operator
bpy.ops.object.editmode_toggle()  # Operator
bpy.context.space_data.context = 'MATERIAL'  # Property
bpy.ops.material.new()  # Operator
bpy.data.materials["Material.001"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0.0275943, 0, 0.8, 1)  # Property
bpy.data.materials["Material.001"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0.0275943, 0, 0.8, 1)  # Property
bpy.ops.object.material_slot_assign()  # Operator
bpy.ops.object.material_slot_assign()  # Operator
bpy.ops.object.material_slot_assign()  # Operator
bpy.ops.object.material_slot_assign()  # Operator
bpy.ops.object.material_slot_assign()  # Operator
bpy.ops.object.material_slot_assign()  # Operator
bpy.context.space_data.shading.type = 'MATERIAL'  # Property
bpy.ops.object.material_slot_add()  # Operator
bpy.ops.material.new()  # Operator
bpy.data.materials["Material.002"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0, 0.00198925, 0.8, 1)  # Property
bpy.data.materials["Material.002"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0, 0.00198925, 0.8, 1)  # Property

# backtrace
./blender(BLI_system_backtrace+0x1d) [0x698819d]
./blender() [0xc15822]
/usr/lib/libc.so.6(+0x3c3e0) [0x7f2dd77dc3e0]
./blender(GPU_pass_compile+0xb) [0x568d67b]
./blender(GPU_material_compile+0x14) [0x5698644]
./blender() [0x105b819]
./blender(wm_jobs_timer+0xc5) [0xed5725]
./blender(wm_window_process_events+0x1cb) [0xee853b]
./blender(WM_main+0x18) [0xec27f8]
./blender(main+0x311) [0xb4c361]
/usr/lib/libc.so.6(__libc_start_main+0xf2) [0x7f2dd77c7002]
./blender() [0xc11f9c]

Pretty weird, but I've got this crash with creating materials while running --debug-gpu-force-workarounds with with both all official versions (2.83.1 and 2.90) and pacman one. Tho there was one time I was able to run normally with --debug-gpu-workarounds but I haven't recorded logs and all the other times I've tired running it it got crashed like this on all versions.

But it works just with

--debug --debug-gpu

I've attached the logs it gave to this post, there were a lot of warnings from shaders so this may give a clue of what is wrong about this whole situation.
debug-gpu-2.83.1.log

The #74024 bug seems painfully similar to the one I have, so I'll try patching Blender 2.83.1 source code with the following lines:

     *   Radeon HD 7570M;
       *   Radeon HD 7600M;
       * And many others... */

      GG.unused_fb_slot_workaround = true;
      GG.broken_amd_driver = true;
    }
  }

/* AMD KAVERI fix attempt */
  if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) &&
      strstr(renderer, "AMD KAVERI")) {
    GG.unused_fb_slot_workaround = true;
    GG.broken_amd_driver = true;
  }

  if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_MAC, GPU_DRIVER_OFFICIAL)) {
    if (strstr(renderer, "AMD Radeon Pro") || strstr(renderer, "AMD Radeon R9") ||
        strstr(renderer, "AMD Radeon RX")) {
      GG.depth_blitting_workaround = true;
    }
  }

  if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_WIN, GPU_DRIVER_OFFICIAL)) {
    /* Limit this fix to older hardware with GL < 4.5. This means Broadwell GPUs are
     * covered since they only support GL 4.4 on windows.
     * This fixes some issues with workbench antialiasing on Win + Intel GPU. (see T76273) */
    if (!GLEW_VERSION_4_5) {
      GG.texture_copy_workaround = true;
    }
  }

But now I'm not sure if that will help at this point.

May be unrelated, but blender 2.90 also just crashes while assigning base color to material (from blender.crash.txt):

# Blender 2.90.0, Commit date: 2020-06-28 15:13, Hash b21ba5e57974
bpy.ops.object.select_all(action='SELECT')  # Operator
bpy.ops.object.delete(use_global=False, confirm=False)  # Operator
Deleted 3 object(s)  # Info
bpy.ops.mesh.primitive_uv_sphere_add(radius=1, enter_editmode=False, align='WORLD', location=(0, 0, 0), scale=(1, 1, 1))  # Operator
bpy.ops.transform.resize(value=(2.49806, 2.49806, 2.49806), orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=True, use_proportional_edit=False, proportional_edit_falloff='SMOOTH', proportional_size=1, use_proportional_connected=False, use_proportional_projected=False)  # Operator
bpy.context.space_data.context = 'TEXTURE'  # Property
bpy.ops.texture.new()  # Operator
bpy.context.space_data.context = 'MATERIAL'  # Property
bpy.ops.material.new()  # Operator

# backtrace
./blender(BLI_system_backtrace+0x20) [0x7d011a0]
./blender() [0xccf86a]
/usr/lib/libc.so.6(+0x3c3e0) [0x7f3993cac3e0]
./blender() [0x10c4d77]
./blender(DRW_shgroup_uniform_float_copy+0x25) [0x10c5eb5]
./blender(EEVEE_lightprobes_cache_init+0x14c) [0x10d344c]
./blender(EEVEE_render_cache_init+0x33) [0x10dc8b3]
./blender() [0x10ced2c]
./blender(DRW_render_to_image+0x1ea) [0x10c494a]
./blender(RE_engine_render+0x35c) [0x6465cfc]
./blender() [0x20d3f20]
./blender() [0x20d4309]
./blender() [0x20d46cd]
./blender() [0x20d4904]
./blender() [0xf98122]
/usr/lib/libpthread.so.0(+0x9422) [0x7f39941a1422]
/usr/lib/libc.so.6(clone+0x43) [0x7f3993d6fbf3]

Yes, I've tried to do the same thing on the pacman build + official build on Intel GPU machine and wasn't able to reproduce this bug too so that seems like mesa bug. On AMD machine tho I'm getting the same issue with both 2.83.1 and 2.90 (official build). I was trying to run Blender **2.83.1** (official build) with > --debug --debug-gpu --debug-gpu-force-workarounds but it crashed on creating materials this time. *(from blender.crash.txt)* ``` # Blender 2.83.1, Commit date: 2020-06-25 09:47, Hash 8289fc688b3e bpy.ops.object.select_all(action='SELECT') # Operator bpy.ops.object.delete(use_global=False, confirm=False) # Operator Deleted 3 object(s) # Info bpy.ops.mesh.primitive_uv_sphere_add(radius=1, enter_editmode=False, align='WORLD', location=(0, 0, 0)) # Operator bpy.ops.transform.resize(value=(2.7876, 2.7876, 2.7876), orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=True, use_proportional_edit=False, proportional_edit_falloff='SMOOTH', proportional_size=1, use_proportional_connected=False, use_proportional_projected=False) # Operator bpy.ops.object.editmode_toggle() # Operator bpy.context.space_data.context = 'MATERIAL' # Property bpy.ops.material.new() # Operator bpy.data.materials["Material.001"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0.0275943, 0, 0.8, 1) # Property bpy.data.materials["Material.001"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0.0275943, 0, 0.8, 1) # Property bpy.ops.object.material_slot_assign() # Operator bpy.ops.object.material_slot_assign() # Operator bpy.ops.object.material_slot_assign() # Operator bpy.ops.object.material_slot_assign() # Operator bpy.ops.object.material_slot_assign() # Operator bpy.ops.object.material_slot_assign() # Operator bpy.context.space_data.shading.type = 'MATERIAL' # Property bpy.ops.object.material_slot_add() # Operator bpy.ops.material.new() # Operator bpy.data.materials["Material.002"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0, 0.00198925, 0.8, 1) # Property bpy.data.materials["Material.002"].node_tree.nodes["Principled BSDF"].inputs[0].default_value = (0, 0.00198925, 0.8, 1) # Property # backtrace ./blender(BLI_system_backtrace+0x1d) [0x698819d] ./blender() [0xc15822] /usr/lib/libc.so.6(+0x3c3e0) [0x7f2dd77dc3e0] ./blender(GPU_pass_compile+0xb) [0x568d67b] ./blender(GPU_material_compile+0x14) [0x5698644] ./blender() [0x105b819] ./blender(wm_jobs_timer+0xc5) [0xed5725] ./blender(wm_window_process_events+0x1cb) [0xee853b] ./blender(WM_main+0x18) [0xec27f8] ./blender(main+0x311) [0xb4c361] /usr/lib/libc.so.6(__libc_start_main+0xf2) [0x7f2dd77c7002] ./blender() [0xc11f9c] ``` Pretty weird, but I've got this crash with creating materials while running *--debug-gpu-force-workarounds* with with both all official versions (2.83.1 and 2.90) and pacman one. Tho there was one time I was able to run normally with --debug-gpu-workarounds but I haven't recorded logs and all the other times I've tired running it it got crashed like this on all versions. But it works just with > --debug --debug-gpu I've attached the logs it gave to this post, there were a lot of warnings from shaders so this may give a clue of what is wrong about this whole situation. [debug-gpu-2.83.1.log](https://archive.blender.org/developer/F8653741/debug-gpu-2.83.1.log) The [#74024 ](https://developer.blender.org/T74024#922564) bug seems painfully similar to the one I have, so I'll try patching Blender 2.83.1 source code with the following lines: ``` * Radeon HD 7570M; * Radeon HD 7600M; * And many others... */ GG.unused_fb_slot_workaround = true; GG.broken_amd_driver = true; } } /* AMD KAVERI fix attempt */ if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) && strstr(renderer, "AMD KAVERI")) { GG.unused_fb_slot_workaround = true; GG.broken_amd_driver = true; } if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_MAC, GPU_DRIVER_OFFICIAL)) { if (strstr(renderer, "AMD Radeon Pro") || strstr(renderer, "AMD Radeon R9") || strstr(renderer, "AMD Radeon RX")) { GG.depth_blitting_workaround = true; } } if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_WIN, GPU_DRIVER_OFFICIAL)) { /* Limit this fix to older hardware with GL < 4.5. This means Broadwell GPUs are * covered since they only support GL 4.4 on windows. * This fixes some issues with workbench antialiasing on Win + Intel GPU. (see T76273) */ if (!GLEW_VERSION_4_5) { GG.texture_copy_workaround = true; } } ``` But now I'm not sure if that will help at this point. May be unrelated, but blender 2.90 also just crashes while assigning base color to material (from *blender.crash.txt*): ``` # Blender 2.90.0, Commit date: 2020-06-28 15:13, Hash b21ba5e57974 bpy.ops.object.select_all(action='SELECT') # Operator bpy.ops.object.delete(use_global=False, confirm=False) # Operator Deleted 3 object(s) # Info bpy.ops.mesh.primitive_uv_sphere_add(radius=1, enter_editmode=False, align='WORLD', location=(0, 0, 0), scale=(1, 1, 1)) # Operator bpy.ops.transform.resize(value=(2.49806, 2.49806, 2.49806), orient_type='GLOBAL', orient_matrix=((1, 0, 0), (0, 1, 0), (0, 0, 1)), orient_matrix_type='GLOBAL', mirror=True, use_proportional_edit=False, proportional_edit_falloff='SMOOTH', proportional_size=1, use_proportional_connected=False, use_proportional_projected=False) # Operator bpy.context.space_data.context = 'TEXTURE' # Property bpy.ops.texture.new() # Operator bpy.context.space_data.context = 'MATERIAL' # Property bpy.ops.material.new() # Operator # backtrace ./blender(BLI_system_backtrace+0x20) [0x7d011a0] ./blender() [0xccf86a] /usr/lib/libc.so.6(+0x3c3e0) [0x7f3993cac3e0] ./blender() [0x10c4d77] ./blender(DRW_shgroup_uniform_float_copy+0x25) [0x10c5eb5] ./blender(EEVEE_lightprobes_cache_init+0x14c) [0x10d344c] ./blender(EEVEE_render_cache_init+0x33) [0x10dc8b3] ./blender() [0x10ced2c] ./blender(DRW_render_to_image+0x1ea) [0x10c494a] ./blender(RE_engine_render+0x35c) [0x6465cfc] ./blender() [0x20d3f20] ./blender() [0x20d4309] ./blender() [0x20d46cd] ./blender() [0x20d4904] ./blender() [0xf98122] /usr/lib/libpthread.so.0(+0x9422) [0x7f39941a1422] /usr/lib/libc.so.6(clone+0x43) [0x7f3993d6fbf3] ```

Antifreeze commented

2020-06-30 06:40:33 +02:00

Okay, I've compiled everything and now it works!

What fixed it for me:

source/blender/gpu/intern/gpu_extensions.c

       *   Radeon HD 7570M;
       *   Radeon HD 7600M;
       * And many others... */

      GG.unused_fb_slot_workaround = true;
      GG.broken_amd_driver = true;
    }
  }

  if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) &&
      strstr(renderer, "AMD VERDE")) {
    /* We have issues with this specific renderer. (see T74024) */
    GG.unused_fb_slot_workaround = true;
    GG.broken_amd_driver = true;
  }

  if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) &&
      strstr(renderer, "AMD KAVERI")) {
  /* AMD KAVERI fix (see T78390) */
    GG.unused_fb_slot_workaround = true;
    GG.broken_amd_driver = true;
  }

  if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_MAC, GPU_DRIVER_OFFICIAL)) {
    if (strstr(renderer, "AMD Radeon Pro") || strstr(renderer, "AMD Radeon R9") ||
        strstr(renderer, "AMD Radeon RX")) {
      GG.depth_blitting_workaround = true;
    }
  }

Tho everything still crashes when I run Blender with --debug-gpu-force-workarounds but that may be related to another issue(?), I'll leave crash report anyways:
blender.crash.txt

Here's my log from --debug --debug-gpu:
KAVERI-fix.log

Okay, I've compiled everything and now it works! What fixed it for me: > source/blender/gpu/intern/gpu_extensions.c ``` * Radeon HD 7570M; * Radeon HD 7600M; * And many others... */ GG.unused_fb_slot_workaround = true; GG.broken_amd_driver = true; } } if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) && strstr(renderer, "AMD VERDE")) { /* We have issues with this specific renderer. (see T74024) */ GG.unused_fb_slot_workaround = true; GG.broken_amd_driver = true; } if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) && strstr(renderer, "AMD KAVERI")) { /* AMD KAVERI fix (see T78390) */ GG.unused_fb_slot_workaround = true; GG.broken_amd_driver = true; } if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_MAC, GPU_DRIVER_OFFICIAL)) { if (strstr(renderer, "AMD Radeon Pro") || strstr(renderer, "AMD Radeon R9") || strstr(renderer, "AMD Radeon RX")) { GG.depth_blitting_workaround = true; } } ``` Tho everything still crashes when I run Blender with *--debug-gpu-force-workarounds* but that may be related to another issue(?), I'll leave crash report anyways: [blender.crash.txt](https://archive.blender.org/developer/F8654655/blender.crash.txt) Here's my log from *--debug --debug-gpu*: [KAVERI-fix.log](https://archive.blender.org/developer/F8654661/KAVERI-fix.log)

Antifreeze commented

2020-06-30 06:40:45 +02:00

Changed status from 'Needs User Info' to: 'Resolved'

Antifreeze closed this issue

2020-06-30 06:40:45 +02:00

Antifreeze self-assigned this 2020-06-30 06:40:45 +02:00

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Assign Materials on Faces of an object #78390