BRDFVrayMtl after Remap node renders black

[JuhaW]

Propably one year old materials are working, but now latest build(s), adding Remap and BRDFVrayMtl, result is black rendered material.
Edit: Gpu render, V-Ray Next 4.20.01

BRDFVrayMtl.zip


https://puu.sh/EfzTk/415f8988ca.png

[svetlozar.draganov]

It actually works fine here with the latest nightly build version of V-Ray for Blender and V-Ray Next 4.20.01.


Would you please let me know the exact version of V-Ray for Blender you are using, and also what is the exact Standalone version.
You mentioned it's 4.20.01 - but did you get it from V-Ray for 3dsMax, is it a regular V-Ray Standalone version etc.

Looking forward to hearing from you.

[JuhaW]

Its V-Ray Next Standalone, update 2.1 (Zip), Build 4b1eea09 from Aug 21 2019,and
V-Ray for Blender is the latest, bpy.app.version = (2, 79, 6), bpy.app.build_hash = b'ac206ea'

Read blend: D:\Gfx\Vray\Bugs\BrdfVrayMtl bug.blend
[2019/Oct/24|18:50:38] [11 MB] Reading configuration from "C:\Program Files\Chao
s Group\V-Ray\Standalone for x64\bin\/vrayconfig.xml"
[2019/Oct/24|18:50:38] [11 MB] ===============================================
[2019/Oct/24|18:50:38] [11 MB] V-Ray Standalone, version Next Standalone, update
 2.1 for x64
[2019/Oct/24|18:50:38] [11 MB] Copyright (C) 2000-2019 Chaos Group Ltd. All righ
ts reserved.
[2019/Oct/24|18:50:38] [11 MB] Use -credits option for additional third-party co
pyright notices.
[2019/Oct/24|18:50:38] [11 MB]
[2019/Oct/24|18:50:38] [11 MB] Build 4b1eea09 from Aug 21 2019, 13:45:58
[2019/Oct/24|18:50:38] [11 MB] Compiled with Microsoft Visual C++ compiler, vers
ion 19.12
[2019/Oct/24|18:50:38] [11 MB] Operating system is Microsoft(tm) Windows(tm), ve
rsion 6.1, Service Pack 1
[2019/Oct/24|18:50:38] [11 MB]
[2019/Oct/24|18:50:38] [11 MB] V-Ray core version is 4.20.01
[2019/Oct/24|18:50:38] [11 MB] ===============================================
[2019/Oct/24|18:50:38] [11 MB]
[2019/Oct/24|18:50:39] [18 MB] Loading plugins from "C:\Program Files\Chaos Grou
p\V-Ray\Standalone for x64\bin/plugins/vray_*.dll"
[2019/Oct/24|18:50:40] [61 MB] 90 plugin(s) loaded successfully
[2019/Oct/24|18:50:40] [61 MB] Finished loading plugins.
[2019/Oct/24|18:50:40] [61 MB] Reading scene file "C:\tmp\vrayblender_standalone
\scene_scene.vrscene"
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_nodes.vrscene
: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_environment.v
rscene: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_geometry.vrsc
ene: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_lights.vrscen
e: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_materials.vrs
cene: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_textures.vrsc
ene: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_camera.vrscen
e: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] C:\tmp\vrayblender_standalone\scene_scene.vrscene
: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:40] [61 MB] Scene file parsed successfully in 0.1 s.
[2019/Oct/24|18:50:40] [61 MB] warning: Unknown property "dmc_adaptive_method" i
n object "SettingsImageSampler"
[2019/Oct/24|18:50:40] [61 MB] warning: Unknown property "scene_name" in object
"Lamp@OBLamp"
[2019/Oct/24|18:50:40] [61 MB] Scene created successfully.
[2019/Oct/24|18:50:40] [61 MB] Objects in scene: 77
[2019/Oct/24|18:50:40] [61 MB] Starting render sequence.
[2019/Oct/24|18:50:40] [61 MB] GI engines: 'Brute force' and 'Light cache'
[2019/Oct/24|18:50:40] [61 MB] Preparing renderer...
[2019/Oct/24|18:50:41] [72 MB] Preparing scene for rendering...:  0.00% [139h 53
[2019/Oct/24|18:50:41] [72 MB] Preparing scene for rendering...: done [ 0h  0m
0.0s]
[2019/Oct/24|18:50:41] [72 MB] Scanning scene for light plugins.
[2019/Oct/24|18:50:41] [72 MB] 1 lights found.
[2019/Oct/24|18:50:41] [72 MB] Using adaptive light evaluation with 8 lights.
[2019/Oct/24|18:50:41] [72 MB] Light tree is enabled with clamp coefficient 0.1
and even split coefficient 0.5.
[2019/Oct/24|18:50:41] [72 MB] warning: KD tree light cache not supported on GPU
, switching to hash map light cache.
[2019/Oct/24|18:50:41] [72 MB] CUDA renderer requested.
[2019/Oct/24|18:50:41] [72 MB] 1 plugin(s) loaded successfully
[2019/Oct/24|18:50:41] [72 MB] CUDA renderer plugin successfully loaded from "C:
\Program Files\Chaos Group\V-Ray\Standalone for x64\bin\rt_cuda.dll"
[2019/Oct/24|18:50:41] [72 MB] CUDA renderer plugin instance successfully create
d.
[2019/Oct/24|18:50:41] [72 MB] EXT_RTOPENCL interface obtained successfully from
 CUDA renderer plugin instance.
[2019/Oct/24|18:50:41] [90 MB] Using normal thread priority.
[2019/Oct/24|18:50:41] [90 MB] Max ray intensity is enabled: rendered result may
 have incorrect brightness.
[2019/Oct/24|18:50:41] [90 MB] ========================
[2019/Oct/24|18:50:41] [90 MB] Starting frame 1.
[2019/Oct/24|18:50:41] [90 MB] Preparing scene for frame...:  0.00% [139h 53m 40
[2019/Oct/24|18:50:41] [90 MB] Preparing scene for frame...: done [ 0h  0m  0.0s
]
[2019/Oct/24|18:50:41] [90 MB] Compiling geometry...:  0.00% [139h 53m 40.8s] [
[2019/Oct/24|18:50:41] [111 MB] Compiling geometry...: done [ 0h  0m  0.1s]
[2019/Oct/24|18:50:41] [111 MB] Using Embree ray tracing.
[2019/Oct/24|18:50:41] [111 MB] Building static raycast accelerator...:  0.00% [
[2019/Oct/24|18:50:41] [111 MB] Building static raycast accelerator...: done [ 0
h  0m  0.0s]
[2019/Oct/24|18:50:41] [111 MB] SDTree statistics:
[2019/Oct/24|18:50:41] [111 MB] Total number of faces stored: 2
[2019/Oct/24|18:50:41] [111 MB] Max tree depth: 1
[2019/Oct/24|18:50:41] [111 MB] Average tree depth: 1
[2019/Oct/24|18:50:41] [111 MB] Number of tree nodes: 1
[2019/Oct/24|18:50:41] [111 MB] Number of tree faces: 2
[2019/Oct/24|18:50:41] [111 MB] Number of tree leaves: 1
[2019/Oct/24|18:50:41] [111 MB] Average faces/leaf: 2
[2019/Oct/24|18:50:41] [111 MB] Memory usage: 1.76 MB
[2019/Oct/24|18:50:41] [111 MB] Building static SD trees took 31 milliseconds
[2019/Oct/24|18:50:41] [111 MB] Using 0.69 MB for adaptive lights buffer
[2019/Oct/24|18:50:41] [111 MB] Running RTEngine
[2019/Oct/24|18:50:41] [111 MB] Initializing CUDA renderer...
[2019/Oct/24|18:50:41] [111 MB] Querying for CUDA devices...
[2019/Oct/24|18:50:41] [117 MB] Device GeForce GTX 970 has compute capability 5.
2
[2019/Oct/24|18:50:42] [167 MB] Setting CUDA stack size to 12000
[2019/Oct/24|18:50:42] [167 MB] Using 5 threads per GPU device
[2019/Oct/24|18:50:42] [167 MB] Building optimized CUDA kernel (0) for comp cap
5.2 for device 0...
[2019/Oct/24|18:50:42] [167 MB] PTX file generated with CUDA Toolkit v10.0 for C
UDA compute capability 3.0. CUDA runtime version 7050.
[2019/Oct/24|18:50:42] [210 MB] Optimized CUDA kernel assembled successfully
[2019/Oct/24|18:50:42] [210 MB] Total memory for device 0 : 4096 MB, free 2581 M
B
[2019/Oct/24|18:50:42] [210 MB] Querying NVLINK ...
[2019/Oct/24|18:50:42] [210 MB] Device 0 does not use NVLINK
[2019/Oct/24|18:50:42] [210 MB] Maximum kernel work group size: 1024
[2019/Oct/24|18:50:42] [203 MB] Initializing environment kernel
[2019/Oct/24|18:50:42] [203 MB] Number of CUDA devices: 1
[2019/Oct/24|18:50:42] [203 MB] nVidia driver version: 436.15
[2019/Oct/24|18:50:42] [203 MB] Min shading rate set to : 6
[2019/Oct/24|18:50:42] [247 MB] Building trees for 16 meshes with all threads pe
r mesh took 105ms.
[2019/Oct/24|18:50:42] [247 MB] Building dynamic meshes trees: done [ 0h  0m  0.
1s]
[2019/Oct/24|18:50:42] [247 MB] Building BVH tree: done [ 0h  0m  0.0s]
[2019/Oct/24|18:50:42] [247 MB] BVH statistics:
[2019/Oct/24|18:50:42] [247 MB] Primitives count: 16 (Mem usage:0.00 MB)
[2019/Oct/24|18:50:42] [247 MB] Meshes count: 16 (Mem usage:0.00 MB)
[2019/Oct/24|18:50:42] [247 MB] Tree depth: 4
[2019/Oct/24|18:50:42] [247 MB] Number of tree nodes: 31
[2019/Oct/24|18:50:42] [247 MB] Tree takes 0.58 MB. Build time 4.12 ms.
[2019/Oct/24|18:50:42] [257 MB] Scene contains 1 lights
[2019/Oct/24|18:50:42] [257 MB] Building light cache.
[2019/Oct/24|18:50:42] [257 MB] Tracing 1000000 image samples for light cache in
 64 passes.
[2019/Oct/24|18:50:42] [257 MB] Using 15.88 MB for light cache preview buffer
[2019/Oct/24|18:50:42] [257 MB] Will not compute auto-exposure and auto-white ba
lance because the camera has exposure.
[2019/Oct/24|18:50:43] [300 MB] Building light cache...: 16.77% [ 0h  0m  0.2s]
[2019/Oct/24|18:50:43] [303 MB] Building light cache...: 33.74% [ 0h  0m  0.4s]
[2019/Oct/24|18:50:43] [306 MB] Building light cache...: 49.00% [ 0h  0m  0.6s]
[2019/Oct/24|18:50:43] [310 MB] Building light cache...: 65.29% [ 0h  0m  0.8s]
[2019/Oct/24|18:50:44] [313 MB] Building light cache...: 82.15% [ 0h  0m  1.0s]
[2019/Oct/24|18:50:44] [317 MB] Building light cache...: 97.87% [ 0h  0m  1.3s]
[2019/Oct/24|18:50:44] [317 MB] Building light cache...: done [ 0h  0m  1.3s]
[2019/Oct/24|18:50:44] [317 MB] Merging light cache passes.
[2019/Oct/24|18:50:44] [319 MB] Merging light cache passes...: done [ 0h  0m  0.
0s]
[2019/Oct/24|18:50:44] [319 MB] Light cache contains 2733 samples.
[2019/Oct/24|18:50:44] [319 MB] Light cache base memory usage is 0.6 MB.
[2019/Oct/24|18:50:44] [319 MB] Using adaptive lights ver2
[2019/Oct/24|18:50:44] [319 MB] Adaptive light grid built in 17.03 ms.
[2019/Oct/24|18:50:44] [319 MB] LightCache contains valid adaptive lights data.
Building GPU adaptive lights...
[2019/Oct/24|18:50:44] [319 MB] Lightmap successfully loaded.
[2019/Oct/24|18:50:44] [319 MB] GPU light cache: 3904 samples stored.
[2019/Oct/24|18:50:44] [319 MB] GPU adaptive lights v1 built successfully
[2019/Oct/24|18:50:44] [319 MB] Rendering image...:  0.00% [139h 53m 43.5s] [ 0h
[2019/Oct/24|18:50:44] [319 MB] Mtls 11.49MB, Geo 25.49MB, Lights 0.00MB, LightC
ache 0.15MB, Reserved 0.26MB (data index 0)
[2019/Oct/24|18:50:44] [443 MB] Rendering image (pass 0):  0.00% [ 0h  0m  0.2s]
[2019/Oct/24|18:50:44] [457 MB] Progressive sampling base buffer memory usage: 3
3.80 MB
[2019/Oct/24|18:50:44] [457 MB] Rendering image (pass 0):  0.00% [ 0h  0m  0.4s]
[2019/Oct/24|18:50:45] [457 MB] Rendering image (pass 0):  0.00% [ 0h  0m  0.6s]
[2019/Oct/24|18:50:45] [457 MB] Rendering image (pass 0):  0.00% [ 0h  0m  0.8s]
[2019/Oct/24|18:50:45] [457 MB] Rendering image (pass 0):  0.00% [ 0h  0m  1.0s]
[2019/Oct/24|18:50:45] [458 MB] Rendering image (pass 16): 41.51% [ 0h  0m  1.2s
[2019/Oct/24|18:50:45] [458 MB] Rendering image (pass 16): 41.51% [ 0h  0m  1.4s
[2019/Oct/24|18:50:46] [458 MB] Rendering image (pass 32): 41.51% [ 0h  0m  1.6s
[2019/Oct/24|18:50:46] [459 MB] GPU adaptive lights v2 built successfully
[2019/Oct/24|18:50:46] [459 MB] Rendering image (pass 32): 41.51% [ 0h  0m  1.8s
[2019/Oct/24|18:50:46] [460 MB] Rendering image (pass 48): 41.51% [ 0h  0m  2.0s
[2019/Oct/24|18:50:46] [460 MB] Rendering image (pass 48): 41.51% [ 0h  0m  2.2s
[2019/Oct/24|18:50:46] [464 MB] Noise threshold goal lowered to 0.142857
[2019/Oct/24|18:50:46] [464 MB] Noise threshold goal lowered to 0.090909
[2019/Oct/24|18:50:46] [464 MB] Noise threshold goal lowered to 0.052632
[2019/Oct/24|18:50:46] [460 MB] Number of rays per pixel changed to 512, total n
umber of samples is 2048.
[2019/Oct/24|18:50:46] [460 MB] Rendering image (pass 48): 86.92% [ 0h  0m  2.5s
[2019/Oct/24|18:50:46] [460 MB] Noise threshold goal lowered to 0.028571
[2019/Oct/24|18:50:47] [461 MB] Number of rays per pixel changed to 23, total nu
mber of samples is 40848.
[2019/Oct/24|18:50:47] [461 MB] Rendering image (pass 1600): 23.97% [ 0h  0m  2.
[2019/Oct/24|18:50:47] [461 MB] Noise threshold goal lowered to 0.014925
[2019/Oct/24|18:50:47] [460 MB] Number of rays per pixel changed to 16, total nu
mber of samples is 82000.
[2019/Oct/24|18:50:47] [460 MB] Rendering image (pass 2755): 85.62% [ 0h  0m  2.
[2019/Oct/24|18:50:47] [460 MB] Noise threshold goal set: 0.008000
[2019/Oct/24|18:50:47] [460 MB] Rendering image (pass 2787): 89.38% [ 0h  0m  3.
[2019/Oct/24|18:50:47] [465 MB] Rendering image (pass 2851): 96.50% [ 0h  0m  3.
[2019/Oct/24|18:50:47] [465 MB] Number of rays per pixel changed to 40, total nu
mber of samples is 40840.
[2019/Oct/24|18:50:47] [465 MB] Rendering image (pass 2947): 99.63% [ 0h  0m  3.
[2019/Oct/24|18:50:47] [465 MB] Number of rays per pixel changed to 103, total n
umber of samples is 40067.
[2019/Oct/24|18:50:47] [465 MB] Number of rays per pixel changed to 236, total n
umber of samples is 40120.
[2019/Oct/24|18:50:47] [465 MB] Number of rays per pixel changed to 292, total n
umber of samples is 40004.
[2019/Oct/24|18:50:47] [465 MB] Number of rays per pixel changed to 455, total n
umber of samples is 40040.
[2019/Oct/24|18:50:47] [465 MB] Number of rays per pixel changed to 512, total n
umber of samples is 31232.
[2019/Oct/24|18:50:48] [465 MB] Rendering image (pass 7060): 99.49% [ 0h  0m  3.
[2019/Oct/24|18:50:48] [465 MB] Rendering image (pass 22363): 99.99% [ 0h  0m  3
[2019/Oct/24|18:50:48] [465 MB] Number of rays per pixel changed to 16, total nu
mber of samples is 0.
[2019/Oct/24|18:50:48] [465 MB] Progressive rendering finished: specified noise
level reached
[2019/Oct/24|18:50:48] [465 MB] Closing RTEngine
[2019/Oct/24|18:50:48] [465 MB] Max. Mpaths per second: 6.851940
[2019/Oct/24|18:50:48] [465 MB] Sampling level reached: 2576 samples per pixel
[2019/Oct/24|18:50:48] [465 MB] V-Ray GPU kernel render time: 3.86s
[2019/Oct/24|18:50:48] [465 MB] Rendering image (pass 25947): done [ 0h  0m  3.9
s]
[2019/Oct/24|18:50:48] [465 MB] Total GPU samples 22303616
[2019/Oct/24|18:50:48] [465 MB] Mtls 11.49MB, Geo 25.49MB, Lights 0.00MB, LightC
ache 0.15MB, Reserved 1346.96MB
[2019/Oct/24|18:50:48] [425 MB] Device 0 statistics:
[2019/Oct/24|18:50:48] [425 MB]   GPU time: 75.755149 %
[2019/Oct/24|18:50:48] [425 MB]   GPU ray trace time 94.805318 %
[2019/Oct/24|18:50:48] [425 MB]   Transfer to GPU time 2.580970 %
[2019/Oct/24|18:50:48] [425 MB]   Transfer from GPU time 2.613712 %
[2019/Oct/24|18:50:48] [425 MB] Number of raycasts: 2482481 (4.79 per pixel)
[2019/Oct/24|18:50:48] [425 MB]   Camera rays: 1000096 (1.93 per pixel)
[2019/Oct/24|18:50:48] [425 MB]   Shadow rays: 737943 (1.42 per pixel)
[2019/Oct/24|18:50:48] [425 MB]   GI rays: 822832 (1.59 per pixel)
[2019/Oct/24|18:50:48] [425 MB]   Reflection rays: 0 (0.00 per pixel)
[2019/Oct/24|18:50:48] [425 MB]   Refraction rays: 0 (0.00 per pixel)
[2019/Oct/24|18:50:48] [425 MB]   Unshaded rays: 0 (0.00 per pixel)
[2019/Oct/24|18:50:48] [425 MB] Peak memory for frame 1: 281.73 MiB collected fo
r 23 categories
[2019/Oct/24|18:50:48] [425 MB]   Peak memory for "Bitmap": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Bucket image sampler": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Dynamic displaced geometry":
0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Dynamic geometry": < 1 MiB
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Dynamic moving displaced geom
etry": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Dynamic moving geometry": 0 B

[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "GI": 1.29 MiB
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Lights": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Misc.": 215.42 MiB
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Misc. displaced geometry": 0
B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Misc. geometry": 16.98 MiB
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Misc. moving displaced geomet
ry": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Misc. moving geometry": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Progressive image sampler": 2
7.94 MiB
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Scene parsing": 6.43 MiB
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Static displaced geometry": 0
 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Static geometry": 1.76 MiB
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Static hair": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Static moving displaced geome
try": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Static moving geometry": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Static moving hair": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "Tiled bitmap": 0 B
[2019/Oct/24|18:50:48] [296 MB]   Peak memory for "VFB": 11.89 MiB
[2019/Oct/24|18:50:48] [296 MB] Number of light evaluations: 788726 (1.52 per pi
xel)
[2019/Oct/24|18:50:48] [296 MB] Maximum memory usage for resman: 0.00 MB
[2019/Oct/24|18:50:48] [296 MB] Number of intersectable primitives: 18
[2019/Oct/24|18:50:48] [296 MB]   SD triangles: 2
[2019/Oct/24|18:50:48] [296 MB]   MB triangles: 0
[2019/Oct/24|18:50:48] [296 MB]   Static primitives: 16
[2019/Oct/24|18:50:48] [296 MB]   Moving primitives: 0
[2019/Oct/24|18:50:48] [296 MB]   Infinite primitives: 0
[2019/Oct/24|18:50:48] [296 MB]   Static hair segments: 0
[2019/Oct/24|18:50:48] [296 MB]   Moving hair segments: 0
[2019/Oct/24|18:50:48] [296 MB] Frame took 6.91 s.
[2019/Oct/24|18:50:50] [251 MB] Maximum memory usage for texman: 0.00 MB

[svetlozar.draganov]

Very strange. Run another test with the exact same builds and still works fine here:


Have you got another GPU device to check if there is any difference?
Can you try to update the GPU drivers as well?
Can you also try the normal installation of V-Ray Standalone, instead of the .ZIP version?

[JuhaW]

I have only one gpu and updated to latest gpu driver NVIDIA GeForce 440.97 WHQL, installed V-Ray Next Standalone via installer and still same problem, objects are black.
Looking at your latest image, I hope you connected VrayMtl Current to Single node, not VrayMtl Old.

[svetlozar.draganov]

Actually I haven't changed anything in the scene, I was thinking its already set up to replicate the issue and just rendered it. Would you please provide more details what should be done in order to replicate the issue?

Looking forward to hearing from you.

[JuhaW]

It was my fault, you need to connect "VrayMtl Current" to Single node. I just showed example with older VrayMtl (node has no fex. Metalness) and it works.