Assigning more than one material messes object up
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Authored By

	Petra Mogyorósi (MiceAreVeryNice)
	Sep 26 2020, 12:06 AM

Description

System Information
Operating system: Pisi Linux 2.1.2 (x64)
Graphics card: AMD Radeon HD 8330 with the Xorg Radeon driver

Blender Version
Broken: 2.83 to 2.90.1
Worked: 2.82a, 2.91.0 Alpha (e5aa9decb23f)

Short description of error

Rendered with Eevee

Rendered with Cycles

Assigning a second material to a mesh makes the portion with said material set glitch. This problem is present in all view modes except for wireframe and Cycles render. Using blender-softwaregl makes no difference in regards to the situation.

Exact steps for others to reproduce the error
Create an object and set a material to it. Add a second material and assign it to a portion of the mesh.
Test case available here:

whenyoucanuseonlycycles.blend846 KBDownload

System information available here:

system-info.txt13 KBDownload

UPDATE:
I removed the references to the nVidia configuration as viewport drawing problems with legacy nVidia cards is a confirmed issue. Also, the glitch didn't surface in 2.91.0 Alpha, which means that a software issue could be at the root of the problem.
A dmesg capture -

blenderglitch.txt187 KBDownload

- reports GPU faults with Blender 2.83. However, drawing multimaterial mesh in Blender 2.91 produces neither the drawing glitch nor the dmesg message.

Related Objects

Mentioned Here: rBba8233174cd7: Fix build error with clean builds
T71576: Viewport/crash artefacts with multiple materials and legacy NVIDIA drivers
rBe5aa9decb23f: Cleanup: Make function private

Event Timeline

Petra Mogyorósi (MiceAreVeryNice) created this task.Sep 26 2020, 12:06 AM

Petra Mogyorósi (MiceAreVeryNice) edited projects, added BF Blender (2.90), EEVEE & Viewport; removed BF Blender.

Petra Mogyorósi (MiceAreVeryNice) updated the task description.Sep 26 2020, 12:22 PM

Petra Mogyorósi (MiceAreVeryNice) edited projects, added BF Blender (2.83), Platform: Linux, OpenGL Error; removed BF Blender (2.90).

Petra Mogyorósi (MiceAreVeryNice) updated the task description.Sep 26 2020, 7:35 PM

Evan Wilson (EAW) changed the task status from Needs Triage to Needs Information from User.Sep 26 2020, 8:56 PM

Evan Wilson (EAW) added a subscriber: Evan Wilson (EAW).

Thanks for the report. The NVIDIA GPUs are below the minimum requirements for Blender, so there is no longer support for it. https://www.blender.org/download/requirements/

Installing the latest graphics driver sometimes helps to make such GPUs work, see here for more information. https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html

If that doesn't help, you can use previous Blender versions like 2.79: https://www.blender.org/download/previous-versions/

As far as I can tell, the Xorg Radeon driver is a 2D video only driver. To check, Open Blender and click on Help->Save Sytem Info in the topbar menu. Upload that file here please.

Petra Mogyorósi (MiceAreVeryNice) added a comment.Sep 26 2020, 9:51 PM

System info fetched:

=====================================
= Blender 2.90.0 System Information =
=====================================


Blender:
=====================================

version: 2.90.0, branch: master, commit date: 2020-08-31 11:26, hash: 0330d1af29c0, type: Release
build date: 2020-08-31, 11:54:54
platform: Linux
binary path: '/app/blender/blender'
build cflags:  -Wall -Wcast-align -Werror=implicit-function-declaration -Werror=return-type -Werror=vla -Wstrict-prototypes -Wmissing-prototypes -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wlogical-op -Wundef -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Wformat-signedness -Wrestrict -Wnonnull -Wabsolute-value -Wuninitialized -Wredundant-decls -Wshadow -Wno-error=unused-but-set-variable -Wimplicit-fallthrough=5  -fuse-ld=gold -std=gnu11   -msse -pipe -fPIC -funsigned-char -fno-strict-aliasing -msse2 -D_GLIBCXX_USE_CXX11_ABI=0
build cxxflags:  -Wredundant-decls -Wall -Wno-invalid-offsetof -Wno-sign-compare -Wlogical-op -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Werror=return-type -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wundef -Wformat-signedness -Wrestrict -Wuninitialized -Wundef -Wmissing-declarations -Wimplicit-fallthrough=5  -fuse-ld=gold -std=c++17   -msse -pipe -fPIC -funsigned-char -fno-strict-aliasing -msse2 -D_GLIBCXX_USE_CXX11_ABI=0
build linkflags:  -Wl,--version-script='/home/sources/buildbot-worker-linux_centos7/linux_290/blender.git/source/creator/blender.map'
build system: CMake

Python:
=====================================

version: 3.7.7 (default, Jul  9 2020, 12:52:49)  [GCC 9.3.1 20200408 (Red Hat 9.3.1-2)]
file system encoding: utf-8:surrogateescape
paths:
	'/app/blender/2.90/scripts/startup'
	'/app/blender/2.90/scripts/modules'
	'/app/blender/2.90/python/lib/python37.zip'
	'/app/blender/2.90/python/lib/python3.7'
	'/app/blender/2.90/python/lib/python3.7/lib-dynload'
	'/app/blender/2.90/python/lib/python3.7/site-packages'
	'/app/blender/2.90/scripts/freestyle/modules'
	'/app/blender/2.90/scripts/addons/modules'
	'/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons/modules'
	'/app/blender/2.90/scripts/addons'
	'/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons'

Python (External Binary):
=====================================

binary path: '/app/blender/2.90/python/bin/python3.7m'
version: Python 3.7.7

Directories:
=====================================

scripts:
	'/app/blender/2.90/scripts/modules'
	'/app/blender/2.90/scripts'
	'/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts'
user scripts: '/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts'
pref scripts: None
datafiles: '/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/datafiles/'
config: '/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/config/'
scripts : '/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/'
autosave: '/home/cincin/.var/app/org.blender.Blender/config/blender/2.90/autosave/'
tempdir: '/tmp/blender_4Q0fHs/'

FFmpeg:
=====================================

avcodec:   '58, 54, 100'
avdevice:  '58,  8, 100'
avformat:  '58, 29, 100'
avutil:    '56, 31, 100'
swscale:   ' 5,  5, 100'

SDL:
=====================================

Version: 2.0.12
Loading method: dynamically loaded by Blender (WITH_SDL_DYNLOAD=ON)

Other Libraries:
=====================================

OpenColorIO:  1,  1,  1
OpenImageIO:  2,  1, 15
OpenShadingLanguage:  1, 10, 10
OpenSubdiv:  0,  0,  0
OpenVDB:  7,  0,  0
Alembic:  1,  7, 12
USD:  0, 20,  5

OpenGL:
=====================================

renderer:	'AMD KABINI (DRM 2.50.0, 4.19.56, LLVM 10.0.1)'
vendor:		'X.Org'
version:	'4.5 (Core Profile) Mesa 20.1.5'
extensions:
	GL_AMD_conservative_depth
	GL_AMD_depth_clamp_separate
	GL_AMD_draw_buffers_blend
	GL_AMD_gpu_shader_int64
	GL_AMD_multi_draw_indirect
	GL_AMD_performance_monitor
	GL_AMD_pinned_memory
	GL_AMD_query_buffer_object
	GL_AMD_seamless_cubemap_per_texture
	GL_AMD_shader_stencil_export
	GL_AMD_shader_trinary_minmax
	GL_AMD_texture_texture4
	GL_AMD_vertex_shader_layer
	GL_AMD_vertex_shader_viewport_index
	GL_ANGLE_texture_compression_dxt3
	GL_ANGLE_texture_compression_dxt5
	GL_ARB_ES2_compatibility
	GL_ARB_ES3_1_compatibility
	GL_ARB_ES3_2_compatibility
	GL_ARB_ES3_compatibility
	GL_ARB_arrays_of_arrays
	GL_ARB_base_instance
	GL_ARB_bindless_texture
	GL_ARB_blend_func_extended
	GL_ARB_buffer_storage
	GL_ARB_clear_buffer_object
	GL_ARB_clear_texture
	GL_ARB_clip_control
	GL_ARB_color_buffer_float
	GL_ARB_compressed_texture_pixel_storage
	GL_ARB_compute_shader
	GL_ARB_compute_variable_group_size
	GL_ARB_conditional_render_inverted
	GL_ARB_conservative_depth
	GL_ARB_copy_buffer
	GL_ARB_copy_image
	GL_ARB_cull_distance
	GL_ARB_debug_output
	GL_ARB_depth_buffer_float
	GL_ARB_depth_clamp
	GL_ARB_derivative_control
	GL_ARB_direct_state_access
	GL_ARB_draw_buffers
	GL_ARB_draw_buffers_blend
	GL_ARB_draw_elements_base_vertex
	GL_ARB_draw_indirect
	GL_ARB_draw_instanced
	GL_ARB_enhanced_layouts
	GL_ARB_explicit_attrib_location
	GL_ARB_explicit_uniform_location
	GL_ARB_fragment_coord_conventions
	GL_ARB_fragment_layer_viewport
	GL_ARB_fragment_shader
	GL_ARB_framebuffer_no_attachments
	GL_ARB_framebuffer_object
	GL_ARB_framebuffer_sRGB
	GL_ARB_get_program_binary
	GL_ARB_get_texture_sub_image
	GL_ARB_gl_spirv
	GL_ARB_gpu_shader5
	GL_ARB_gpu_shader_fp64
	GL_ARB_gpu_shader_int64
	GL_ARB_half_float_pixel
	GL_ARB_half_float_vertex
	GL_ARB_instanced_arrays
	GL_ARB_internalformat_query
	GL_ARB_internalformat_query2
	GL_ARB_invalidate_subdata
	GL_ARB_map_buffer_alignment
	GL_ARB_map_buffer_range
	GL_ARB_multi_bind
	GL_ARB_multi_draw_indirect
	GL_ARB_occlusion_query2
	GL_ARB_parallel_shader_compile
	GL_ARB_pipeline_statistics_query
	GL_ARB_pixel_buffer_object
	GL_ARB_point_sprite
	GL_ARB_polygon_offset_clamp
	GL_ARB_program_interface_query
	GL_ARB_provoking_vertex
	GL_ARB_query_buffer_object
	GL_ARB_robust_buffer_access_behavior
	GL_ARB_robustness
	GL_ARB_sample_shading
	GL_ARB_sampler_objects
	GL_ARB_seamless_cube_map
	GL_ARB_seamless_cubemap_per_texture
	GL_ARB_separate_shader_objects
	GL_ARB_shader_atomic_counter_ops
	GL_ARB_shader_atomic_counters
	GL_ARB_shader_ballot
	GL_ARB_shader_bit_encoding
	GL_ARB_shader_clock
	GL_ARB_shader_group_vote
	GL_ARB_shader_image_load_store
	GL_ARB_shader_image_size
	GL_ARB_shader_objects
	GL_ARB_shader_precision
	GL_ARB_shader_stencil_export
	GL_ARB_shader_storage_buffer_object
	GL_ARB_shader_subroutine
	GL_ARB_shader_texture_image_samples
	GL_ARB_shader_texture_lod
	GL_ARB_shader_viewport_layer_array
	GL_ARB_shading_language_420pack
	GL_ARB_shading_language_include
	GL_ARB_shading_language_packing
	GL_ARB_spirv_extensions
	GL_ARB_stencil_texturing
	GL_ARB_sync
	GL_ARB_tessellation_shader
	GL_ARB_texture_barrier
	GL_ARB_texture_buffer_object
	GL_ARB_texture_buffer_object_rgb32
	GL_ARB_texture_buffer_range
	GL_ARB_texture_compression_bptc
	GL_ARB_texture_compression_rgtc
	GL_ARB_texture_cube_map_array
	GL_ARB_texture_filter_anisotropic
	GL_ARB_texture_float
	GL_ARB_texture_gather
	GL_ARB_texture_mirror_clamp_to_edge
	GL_ARB_texture_multisample
	GL_ARB_texture_non_power_of_two
	GL_ARB_texture_query_levels
	GL_ARB_texture_query_lod
	GL_ARB_texture_rectangle
	GL_ARB_texture_rg
	GL_ARB_texture_rgb10_a2ui
	GL_ARB_texture_stencil8
	GL_ARB_texture_storage
	GL_ARB_texture_storage_multisample
	GL_ARB_texture_swizzle
	GL_ARB_texture_view
	GL_ARB_timer_query
	GL_ARB_transform_feedback2
	GL_ARB_transform_feedback3
	GL_ARB_transform_feedback_instanced
	GL_ARB_transform_feedback_overflow_query
	GL_ARB_uniform_buffer_object
	GL_ARB_vertex_array_bgra
	GL_ARB_vertex_array_object
	GL_ARB_vertex_attrib_64bit
	GL_ARB_vertex_attrib_binding
	GL_ARB_vertex_buffer_object
	GL_ARB_vertex_shader
	GL_ARB_vertex_type_10f_11f_11f_rev
	GL_ARB_vertex_type_2_10_10_10_rev
	GL_ARB_viewport_array
	GL_ATI_blend_equation_separate
	GL_ATI_meminfo
	GL_ATI_texture_float
	GL_ATI_texture_mirror_once
	GL_EXT_EGL_image_storage
	GL_EXT_EGL_sync
	GL_EXT_abgr
	GL_EXT_blend_equation_separate
	GL_EXT_depth_bounds_test
	GL_EXT_draw_buffers2
	GL_EXT_draw_instanced
	GL_EXT_framebuffer_blit
	GL_EXT_framebuffer_multisample
	GL_EXT_framebuffer_multisample_blit_scaled
	GL_EXT_framebuffer_object
	GL_EXT_framebuffer_sRGB
	GL_EXT_memory_object
	GL_EXT_memory_object_fd
	GL_EXT_packed_depth_stencil
	GL_EXT_packed_float
	GL_EXT_pixel_buffer_object
	GL_EXT_polygon_offset_clamp
	GL_EXT_provoking_vertex
	GL_EXT_shader_image_load_formatted
	GL_EXT_shader_image_load_store
	GL_EXT_shader_integer_mix
	GL_EXT_shader_samples_identical
	GL_EXT_texture_array
	GL_EXT_texture_compression_dxt1
	GL_EXT_texture_compression_rgtc
	GL_EXT_texture_compression_s3tc
	GL_EXT_texture_filter_anisotropic
	GL_EXT_texture_integer
	GL_EXT_texture_mirror_clamp
	GL_EXT_texture_sRGB
	GL_EXT_texture_sRGB_R8
	GL_EXT_texture_sRGB_decode
	GL_EXT_texture_shadow_lod
	GL_EXT_texture_shared_exponent
	GL_EXT_texture_snorm
	GL_EXT_texture_swizzle
	GL_EXT_timer_query
	GL_EXT_transform_feedback
	GL_EXT_vertex_array_bgra
	GL_EXT_vertex_attrib_64bit
	GL_EXT_window_rectangles
	GL_IBM_multimode_draw_arrays
	GL_KHR_blend_equation_advanced
	GL_KHR_context_flush_control
	GL_KHR_debug
	GL_KHR_no_error
	GL_KHR_parallel_shader_compile
	GL_KHR_robust_buffer_access_behavior
	GL_KHR_robustness
	GL_KHR_texture_compression_astc_ldr
	GL_KHR_texture_compression_astc_sliced_3d
	GL_MESA_framebuffer_flip_y
	GL_MESA_pack_invert
	GL_MESA_shader_integer_functions
	GL_MESA_texture_signed_rgba
	GL_NVX_gpu_memory_info
	GL_NV_alpha_to_coverage_dither_control
	GL_NV_conditional_render
	GL_NV_copy_image
	GL_NV_depth_clamp
	GL_NV_packed_depth_stencil
	GL_NV_texture_barrier
	GL_NV_vdpau_interop
	GL_OES_EGL_image
	GL_S3_s3tc

Implementation Dependent OpenGL Limits:
=====================================

Maximum DrawElements Vertices:	3000
Maximum DrawElements Indices:	3000

GLSL:
Maximum Varying Floats:	128
Maximum Vertex Attributes:	16
Maximum Vertex Uniform Components:	16384
Maximum Fragment Uniform Components:	16384
Maximum Vertex Image Units:	32
Maximum Fragment Image Units:	32
Maximum Pipeline Image Units:	192

Cycles:
=====================================


CPU device capabilities: SSE2 SSE3 SSE41 AVX

OpenCL device capabilities:
Number of platforms: 1
Platform #0
	Platform Name: Clover
	Platform Vendor: Mesa
	Platform Version: OpenCL 1.1 Mesa 20.1.5
	Platform Profile: FULL_PROFILE
	Platform Extensions: cl_khr_icd
	Number of devices: 1
		Device: #0
			Device Name: AMD KABINI (DRM 2.50.0, 4.19.56, LLVM 10.0.1)
			Device Vendor: AMD
			Device OpenCL C Version: OpenCL C 1.1 
			Device Profile: FULL_PROFILE
			Device Version: OpenCL 1.1 Mesa 20.1.5
			Device Extensions: cl_khr_byte_addressable_store cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp64
			Device Max clock frequency (MHz): 496
			Device Max compute units: 2
			Device Max work group size: 256

Enabled add-ons:
=====================================

io_anim_bvh (version: (1, 0, 0), path: /app/blender/2.90/scripts/addons/io_anim_bvh/__init__.py)
io_curve_svg (version: UNKNOWN, path: /app/blender/2.90/scripts/addons/io_curve_svg/__init__.py)
io_mesh_ply (version: UNKNOWN, path: /app/blender/2.90/scripts/addons/io_mesh_ply/__init__.py)
io_mesh_stl (version: (1, 1, 3), path: /app/blender/2.90/scripts/addons/io_mesh_stl/__init__.py)
io_mesh_uv_layout (version: (1, 1, 1), path: /app/blender/2.90/scripts/addons/io_mesh_uv_layout/__init__.py)
io_scene_fbx (version: (4, 21, 3), path: /app/blender/2.90/scripts/addons/io_scene_fbx/__init__.py)
io_scene_gltf2 (version: (1, 3, 48), path: /app/blender/2.90/scripts/addons/io_scene_gltf2/__init__.py)
io_scene_obj (version: (3, 8, 0), path: /app/blender/2.90/scripts/addons/io_scene_obj/__init__.py)
io_scene_x3d (version: (2, 2, 5), path: /app/blender/2.90/scripts/addons/io_scene_x3d/__init__.py)
cycles (version: UNKNOWN, path: /app/blender/2.90/scripts/addons/cycles/__init__.py)
screencastkeys (version: (3, 0, 0), path: /home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons/screencastkeys/__init__.py)
AddRenderButton (version: (0, 0, 3), path: /home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons/AddRenderButton.py)
mmd_tools (version: (0, 7, 0), path: /home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons/mmd_tools/__init__.py)
ant_landscape (version: (0, 1, 8), path: /app/blender/2.90/scripts/addons/ant_landscape/__init__.py)
render_povray (version: (0, 1, 0), path: /app/blender/2.90/scripts/addons/render_povray/__init__.py)
MB-Lab-1_7_7 (version: (1, 7, 7), path: /home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons/MB-Lab-1_7_7/__init__.py)
BlendLuxCore (version: (2, 2), path: /home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons/BlendLuxCore/__init__.py)
add_mesh_rocks (version: (1, 4), path: /home/cincin/.var/app/org.blender.Blender/config/blender/2.90/scripts/addons/add_mesh_rocks/__init__.py)
add_mesh_extra_objects (version: (0, 3, 6), path: /app/blender/2.90/scripts/addons/add_mesh_extra_objects/__init__.py)
blenderkit (version: (1, 0, 31), path: /app/blender/2.90/scripts/addons/blenderkit/__init__.py)
archipack (version: (1, 2, 83), path: /app/blender/2.90/scripts/addons/archipack/__init__.py)
archimesh (version: (1, 2, 2), path: /app/blender/2.90/scripts/addons/archimesh/__init__.py)
add_mesh_BoltFactory (version: (0, 4, 0), path: /app/blender/2.90/scripts/addons/add_mesh_BoltFactory/__init__.py)
add_mesh_discombobulator (version: (0, 1, 0), path: /app/blender/2.90/scripts/addons/add_mesh_discombobulator/__init__.py)
add_mesh_geodesic_domes (version: (0, 3, 6), path: /app/blender/2.90/scripts/addons/add_mesh_geodesic_domes/__init__.py)

Petra Mogyorósi (MiceAreVeryNice) changed the task status from Needs Information from User to Needs Triage.Oct 5 2020, 10:20 AM

Petra Mogyorósi (MiceAreVeryNice) updated the task description.

Petra Mogyorósi (MiceAreVeryNice) edited projects, added BF Blender (2.90); removed BF Blender (2.83).

Richard Antalik (ISS) added a subscriber: Richard Antalik (ISS).Oct 7 2020, 10:06 AM

From what I heard in T71576 this is apparently fixed in 2.91

Please download latest development build from https://builder.blender.org/download/ and re-check.

I will merge this report in meanwhile.

Richard Antalik (ISS) closed this task as a duplicate of T71576: Viewport/crash artefacts with multiple materials and legacy NVIDIA drivers.Oct 7 2020, 10:06 AM

I see in report that you mention, that this works in 2.91 so nevermind my comment.

Amy Moo (amy_aimei) added a subscriber: Amy Moo (amy_aimei).Oct 16 2020, 5:48 PM

I just tested 2.91.0 Alpha (ba8233174cd7) with the legacy nVidia cards, it works. Both 2.83.7 and 2.90.1 are not working.

Assigning more than one material messes object upClosed, DuplicateActions

Description

Related Objects

Event Timeline

Assigning more than one material messes object up
Closed, Duplicate
Actions