Can not enable vray plugin

[Stugys]

Hello, I experiancing this bug with todays build for linux

V-Ray For Blender: Using "/usr/ChaosGroup/V-Ray/Standalone_for_linux_x64/opensl/stdosl.h" for stdosl path.
V-Ray For Blender: Parsing plugin descriptions... done [00:00.06]
V-Ray For Blender: vfb_load()
pyrna_srna_ExternalType: incorrect subclassing of SRNA 'AddonPreferences'
See bpy_types.py
<Expected! > : <class 'bpy_types.AddonPreferences'> ref:62 ptr:0x8da8548 type:RNAMeta
pyrna_srna_Subtype: error registering 'AddonPreferences'
TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases
Exception in module register(): '/usr/ChaosGroup/Blender 2.79 (With V-Ray Additions)/2.79/scripts/addons/vb30/__init__.py'
Traceback (most recent call last):
File "/usr/ChaosGroup/Blender 2.79 (With V-Ray Additions)/2.79/scripts/modules/addon_utils.py", line 350, in enable
mod.register()
File "/usr/ChaosGroup/Blender 2.79 (With V-Ray Additions)/2.79/scripts/addons/vb30/__init__.py", line 53, in register
plugins.register()
File "/usr/ChaosGroup/Blender 2.79 (With V-Ray Additions)/2.79/scripts/addons/vb30/plugins/__init__.py", line 854, in register
LoadPlugins(PLUGINS, PLUGINS_ID)
File "/usr/ChaosGroup/Blender 2.79 (With V-Ray Additions)/2.79/scripts/addons/vb30/plugins/__init__.py", line 127, in LoadPlugins
plugins.append(__import__(module_name))
File "/usr/ChaosGroup/Blender 2.79 (With V-Ray Additions)/2.79/scripts/addons/vb30/plugins/system/Exporter.py", line 64, in <module>
class VRayExporterPreferences(bpy.types.AddonPreferences ):
RuntimeError: bpy.types.AddonPreferences subtype could not be generated, this is a bug!

[Stugys]

ok it helped when i load to factory settings, and then enabling process was successful

[Stugys]

looks like vrayblender does not suport numpy module and animation nodes, i am reanabling plugins one by one and it gave me this error

The Animation Nodes addon depends on the numpy library.
Unfortunally the Blender built you are using does not have this library.
You can either install numpy manually or use another Blender version
that comes with numpy (e.g. the newest official Blender release).

[Stugys]

Its me again. looks like material preview does not work it did not show any image just black screen space where should be shown material prieview, terminal autpus of this problem, terminal autput is cyclic it repeats over and over, whan closing material preview window output stops.

V-Ray For Blender: Thread [0] stopping.V-Ray For Blender:
Thread [1] stopping.
V-Ray For Blender: Total sync time 0.053 sec.
V-Ray For Blender: vfb_free()
V-Ray For Blender: vfb_init()
V-Ray For Blender: Initting VrsceneExporter
V-Ray For Blender: vfb_render()
V-Ray For Blender: SceneExporter::sync(0)
V-Ray For Blender: SceneExporter::sync_objects(0)
V-Ray For Blender: Thread [1] starting ...
V-Ray For Blender: Thread [0] starting ...
V-Ray For Blender: SceneExporter::resize(362, 14
V-Ray For Blender: Flushing all data to files
V-Ray For Blender: V-Ray For Blender: Thread [1] stopping.Thread [0] stopping.

V-Ray For Blender: Total sync time 0.054 sec.
V-Ray For Blender: vfb_free()
V-Ray For Blender: vfb_init()
V-Ray For Blender: Initting VrsceneExporter
V-Ray For Blender: Thread [0] starting ...
V-Ray For Blender: Thread [1] starting ...
V-Ray For Blender: vfb_render()
V-Ray For Blender: SceneExporter::sync(0)
V-Ray For Blender: SceneExporter::sync_objects(0)
V-Ray For Blender: SceneExporter::resize(362, 14
V-Ray For Blender: Flushing all data to files
V-Ray For Blender: Thread [0] stopping.
V-Ray For Blender: Thread [1] stopping.
V-Ray For Blender: Total sync time 0.057 sec.
V-Ray For Blender: vfb_free()

[poseidon4o]

Stugys this happens on all scenes? Can you uplaod the scene you are using to test. Also which Blender build and which standalone build are you using?

[Stugys]

it happening with empty scene, or with project saved scene, so shortly with every scene, i am talking about material preview not showiing preview result

[poseidon4o]

What about Blender and VRay versions?

[Stugys]

What settings should be to get bigger motio blur result, because motion blure is just what it renders, i need that particles will be more motionblured

[JuhaW]

Latest Vray for Blender build, same problem than Stugys, no preview. After waiting this error sometimes happens:

V-Ray For Blender: SceneExporter::resize(291, 143)
V-Ray For Blender: Flushing all data to files
V-Ray For Blender: Thread [0] stopping.
V-Ray For Blender: Thread [1] stopping.
V-Ray For Blender: Total sync time 0.145 sec.
V-Ray For Blender: vfb_free()
V-Ray For Blender: Thread [0] stopping.
V-Ray For Blender: Thread [1] stopping.
Exception => 'OSError': [Errno 22] Invalid argument: 'C:/tmp/vrayblender_preview
_standalone\\preview.vrscene'
Traceback =>
File "C:\BlenderVray\2.79\scripts\addons\vb30\export.py ", line 135, in ExportE
x
fm.init()
File "C:\BlenderVray\2.79\scripts\addons\vb30\lib\VRayS tream.py", line 286, in
init
self.files['scene'] = open(filepath, 'w')
Error: Error initing files!

[Stugys]

What about Blender and VRay versions?

Can i as to be more specific you are asking about blender and vray render result diferences with particles, or you asking about what date and build vrayblender and vray std i was using?

[poseidon4o]

I am asking about vray std version (build date) and vrayblender version.

About particles, from next nightly the "subframes" property should be handled correctly. On your scene the particles are very short lived - you can try increasing their life and also increasing the source object "subframes". You can try to increase the scene's FPS or decrease the exposure of the camera.

[Stugys]

vrayblender35-2.79-8176b4d-x86_64-centos7.2.1511.tar.bz2

vrayblender35-2.79-8176b4d-x86_64-centos7.2.1511.tar.bz2

That was 2017 11 02 days builds of vraystandalone and vrayblender

thank you for information about particles