Under Linux Mint 21.2 in CPU mode, Luxcore does not render geometrie

[LemyD]

Hello everybody,

I have an issue with Blender 3.6.2, Luxcore 2.7beta2 and Linux Mint 21.2. I hope someone can help me.
My Linux:

Linux Mint 21.2 in a AMD Ryzen 9 5900X
I am using 2 GPUs:
GPU: NVIDIA GeForce RTX 3060 Lite Hash Rate
GPU: NVIDIA 2d:00.0 NVIDIA Corporation Device 2786 (GeForce 4070 RTX)

When I render in viewport in GPU mode, the render is correct. Please see picture GPU Render.png.

When I render in CPU mode, the geometry is not rendered. Please see picture CPU Render.png

Does anyone know what causes this issue?
Thank you for your help.

[Odilkhan Yakubov]

Hi.
1. Can you make screen from User pref > LuxCore > Film device
2. Can you paste log from Blender console?

P.s.: also open an issue on bug tracker: https://github.com/LuxCoreRender/BlendLuxCore/issues

[LemyD]

Hi,
Here is the screenshot:

And here is the output in the console:

Updating device list
Read blend: "/home/christian/Blender/Test_LuxCore.blend"
==================================================
[Engine/Viewport] New session
[Exporter] Creating session
[SDL][13.017] Define ImageMap: NamedObject
[SDL][13.017] Camera type: perspective
[SDL][13.017] Camera position: Point[2.04943, -10.9102, 1.90695]
[SDL][13.017] Camera target: Point[1.86957, -9.94205, 1.73276]
[SDL][13.017] Camera clipping plane disabled
140533143953160
140533143954312
[SDL][13.019] Material definition: 140533143953160
[SDL][13.019] Material definition: 140533143954312
[SDL][13.019] Scene objects count: 2
[SDL][13.019] Light definition: 140533143970824
[SDL][13.019] Light definition: 140533143969288
[SDL][13.019] Reading texture map: /home/christian/Blender/../../../mnt/Grafik/HDRI Haven/empty_warehouse_01_8k.hdr
[SDL][13.019] Mip map available: [8192x4096]
[SDL][13.019] Reading mip map level: 0
[LuxCore][13.605] Configuration:
[LuxCore][13.605] path.pathdepth.total = 7
[LuxCore][13.605] path.pathdepth.diffuse = 5
[LuxCore][13.605] path.pathdepth.glossy = 5
[LuxCore][13.605] path.pathdepth.specular = 6
[LuxCore][13.605] path.hybridbackforward.enable = 0
[LuxCore][13.605] path.hybridbackforward.partition = 0.5
[LuxCore][13.605] path.hybridbackforward.glossinessthreshold = 0.049
[LuxCore][13.605] rtpathcpu.zoomphase.size = 4
[LuxCore][13.605] rtpathcpu.zoomphase.weight = 0
[LuxCore][13.605] renderengine.type = "RTPATHCPU"
[LuxCore][13.605] sampler.type = "RTPATHCPUSAMPLER"
[LuxCore][13.605] film.width = 1065
[LuxCore][13.605] film.height = 430
[LuxCore][13.605] film.filter.type = "NONE"
[LuxCore][13.605] film.filter.width = 1.5
[LuxCore][13.605] lightstrategy.type = "LOG_POWER"
[LuxCore][13.605] scene.epsilon.min = 1e-05
[LuxCore][13.605] scene.epsilon.max = 0.1
[LuxCore][13.605] path.albedospecular.type = "REFLECT_TRANSMIT"
[LuxCore][13.605] path.albedospecular.glossinessthreshold = 0.05
[LuxCore][13.605] film.opencl.enable = 0
[LuxCore][13.605] path.forceblackbackground.enable = 0
[LuxCore][13.605] renderengine.seed = 1
[LuxCore][13.605] film.outputs.0.type = "RGB_IMAGEPIPELINE"
[LuxCore][13.605] film.outputs.0.index = 0
[LuxCore][13.605] film.outputs.0.filename = "RGB_IMAGEPIPELINE_0.png"
[LuxCore][13.605] film.imagepipelines.000.0.type = "NOP"
[LuxCore][13.605] film.imagepipelines.000.1.type = "TONEMAP_LINEAR"
[LuxCore][13.605] film.imagepipelines.000.1.scale = 1
[LuxCore][13.605] film.imagepipelines.000.radiancescales.0.enabled = 1
[LuxCore][13.605] film.imagepipelines.000.radiancescales.0.globalscale = 1
[LuxCore][13.605] film.imagepipelines.000.radiancescales.0.rgbscale = 1 1 1
[LuxCore][13.605] batch.haltspp = 0 0
[LuxCore][13.605] batch.halttime = 0
[LuxCore][13.605] File Name Resolver Configuration:
Export took 0.6 s
[LuxCore][13.605] Film resolution: 1065x430
[SDL][13.606] Film output definition: RGB_IMAGEPIPELINE [image.png]
[SDL][13.606] Image pipeline: film.imagepipelines.000
[SDL][13.606] Image pipeline step 0: NOP
[SDL][13.606] Image pipeline step 1: TONEMAP_LINEAR
[SDL][13.606] Film output definition: RGB_IMAGEPIPELINE [RGB_IMAGEPIPELINE_0.png]
[LuxRays][13.606] OpenCL support: enabled
[LuxRays][13.606] OpenCL Platform 0: NVIDIA CUDA
[LuxRays][13.606] CUDA support: enabled
[LuxRays][13.606] CUDA support: available
[LuxRays][13.606] CUDA driver version: 12.20
[LuxRays][13.606] CUDA device count: 2
[LuxRays][13.606] Optix support: available
[LuxRays][13.606] Device 0 name: Native
[LuxRays][13.606] Device 0 type: NATIVE_THREAD
[LuxRays][13.606] Device 0 compute units: 1
[LuxRays][13.606] Device 0 preferred float vector width: 4
[LuxRays][13.606] Device 0 max allocable memory: 17592186044415MBytes
[LuxRays][13.606] Device 0 max allocable memory block size: 17592186044415MBytes
[LuxRays][13.606] Device 0 has out of core memory support: 0
[LuxRays][13.606] Device 1 name: NVIDIA GeForce RTX 4070
[LuxRays][13.606] Device 1 type: OPENCL_GPU
[LuxRays][13.606] Device 1 compute units: 46
[LuxRays][13.606] Device 1 preferred float vector width: 1
[LuxRays][13.606] Device 1 max allocable memory: 12006MBytes
[LuxRays][13.606] Device 1 max allocable memory block size: 3001MBytes
[LuxRays][13.606] Device 1 has out of core memory support: 0
[LuxRays][13.606] Device 2 name: NVIDIA GeForce RTX 3060
[LuxRays][13.606] Device 2 type: OPENCL_GPU
[LuxRays][13.606] Device 2 compute units: 28
[LuxRays][13.606] Device 2 preferred float vector width: 1
[LuxRays][13.606] Device 2 max allocable memory: 12044MBytes
[LuxRays][13.606] Device 2 max allocable memory block size: 3011MBytes
[LuxRays][13.606] Device 2 has out of core memory support: 0
[LuxRays][13.606] Device 3 name: NVIDIA GeForce RTX 4070
[LuxRays][13.606] Device 3 type: CUDA_GPU
[LuxRays][13.606] Device 3 compute units: 1
[LuxRays][13.606] Device 3 preferred float vector width: 1
[LuxRays][13.606] Device 3 max allocable memory: 12006MBytes
[LuxRays][13.606] Device 3 max allocable memory block size: 17592186044415MBytes
[LuxRays][13.606] Device 3 has out of core memory support: 1
[LuxRays][13.606] Device 3 CUDA compute capability: 8.9
[LuxRays][13.606] Device 4 name: NVIDIA GeForce RTX 3060
[LuxRays][13.606] Device 4 type: CUDA_GPU
[LuxRays][13.606] Device 4 compute units: 1
[LuxRays][13.606] Device 4 preferred float vector width: 1
[LuxRays][13.606] Device 4 max allocable memory: 12044MBytes
[LuxRays][13.606] Device 4 max allocable memory block size: 17592186044415MBytes
[LuxRays][13.606] Device 4 has out of core memory support: 1
[LuxRays][13.606] Device 4 CUDA compute capability: 8.6
[LuxRays][13.606] Creating 24 intersection device(s)
[LuxRays][13.606] Allocating intersection device 0: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 1: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 2: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 3: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 4: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 5: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 6: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 7: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 8: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 9: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 10: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 11: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 12: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 13: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 14: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 15: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 16: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 17: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 18: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 19: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 20: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 21: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 22: Native (Type = NATIVE_THREAD)
[LuxRays][13.606] Allocating intersection device 23: Native (Type = NATIVE_THREAD)
[LuxCore][13.606] Configuring 24 CPU render threads
[LuxRays][13.606] Preprocessing DataSet
[LuxRays][13.607] Total vertex count: 28
[LuxRays][13.607] Total triangle count: 14
[LuxRays][13.607] Preprocessing DataSet done
[LuxRays][13.607] Adding DataSet accelerator: EMBREE
[LuxRays][13.607] Total vertex count: 28
[LuxRays][13.607] Total triangle count: 14
[LuxRays][13.607] EmbreeAccel build time: 0ms
[Engine/Viewport] Pausing session

Thank you.
Christian

[Odilkhan Yakubov]

Are there have any errors on the console?

[LemyD]

Hi,
Sorry for my late Answer. No, there is no error.

Thx