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FAQ
000 I have installed demo for Maya and v-ray-blender 2.56 and download examples of the site, but when I run a record, I only see the lights in the log I have no error but 13 warnings.
If You see just lights and render is completly dark/without any mesh that is for sure in the scene hit 'mesh export' before You hit 'render'
001 I can't find exporter folders on mac?
They are hidden inside vb.app just click right button and choose: show content.
Then navigate to .../MacOS/X.XX/scripts/startup/vb25
002 What's the quickest way to update the script?
Instaling git (Git for OS X)
and then follow instruction here:
https://github.com/bdancer/vb25/wiki/Installation
After all - everytime u want to update just navigate(in terminal) to exporter folder and type : git pull
003 Can I load/save render setings and copy them to another computer or vb instalation?
Yes, save/load seting are in vb render tab:
Saved settings are stored:
blender.app/Contents/MacOS/2.56/scripts/startup/vb25/presets
004 I want to render a channel with one selected object?
Go to:Render>Channels> add ObjectSelect
then below type correct ID number from Pass Index (it's in Object>Relations)
005 Vray renders broken png?
Don't change default compresion: 90%
006 Vray (on osx) doesnt renders when i select output path?!
a. check if there are some spaces in the path (must be without spaces)
b. working output paths should look similar to that:
If output folder is in MacintoshHD/Renders/ then
path in output tab must start from fe. /Renders/
007 error: Error parsing command line
Like in 006 check the output path
008 I have a few objects i want to render out separately, but each element has to have the light interactions with the other elements intact, although the other elements would have to be excluded from the final image.
Select Camera and go to it's settings tab, check Hide Objects, then choose from camera”
009 Vray doesnt render and there are errors in terminal:
File "/Applications/.../vb25/render.py", line 2276, in render
process= subprocess.Popen(params)
File "/Applications//subprocess.py", line 646, in __init__
errread, errwrite)
File "/Applications//subprocess.py", line 1157, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory
location:<unknown location>:-1
Check Path to exporter in render tab. Should looks like this: /Applications/Autodesk/maya2010/Maya.app/Contents/vray/bin/vray.exe
010 How to quick render all with one material without assigning manually it to all objects?
Render>Globals tab >Material Override button
011 Where is meshlight ?
Select object You want to be a ligh then go to object tab>light
012 When no tile is selected in texure tab,it is rendered on the center of the object, why?
Yes it is placed where the actually origin of the object is set.
013 How to make object that gives reflection but is not seen by the camera?
This can be made by material setup. Select object You want to be unvisible for camera then in material tab check on render tab and uncheck visible to camera (but check on reflection or refraction)
014 How to make point light o have smooth transition beteen light area and darkness?
Just setup the sphere segments to 0.
015 Where is "number of passes" in light cache ?
To set them manually check off 'autonum passes”
016 Are "Interpolation samples" in Light Cache (in 3ds) the same as Samples in Filter (light cache tab in VB) - is this param bluring them?
Yes.
017 (osx) light cache autosave optiion doesnt save file (it creates only folder)
This is autosave path issue. Path should look like this on mac: //.../././././DestinationPlace/xxx.vrlc
018 Can I exclude more than one objects (i dont see any button to add another one) ?
You could add object names separated by ';' (look at tooltip); you could also add group (also ';' separated list).
019 Whats the difference beetwen saving exporter and gi settings?
Global saves all (displace, caustics, gi, cm etc) settings. GI - just GI.
020 How to dissable object or material from generate/recieve caustics?
Wrapper (in material and object). Wrapper should be applied both to objects that are giving caustics and reciving caustics.
021 How can I specify material for hair? f.e. i have two praticle systems assigned and want both of them to have different materials - i can specify material number but what then?
This id is material position in particle emitter materials (same as in Internal).
022 DOF is so f... slow?
Yep, thats why U can use zdepth channel(channels are in render tab) and make dof in photoshop. Just add this channel and render without dof.
Rest of how to is here: http://www.trinity3d.com/tutorials/vray ... ndex.shtml
If zdepth is too low contrasty You can adjust this in photoshop ( white-closer,black-further).
023 how use the 'node textures'?
You can start from looking at this file:
http://dl.dropbox.com/u/19725436/VB_mat ... odes.blend
024 error passing command line (61)
Probably the vrlservice.exe isn't running, go to programs>chaos group and run it.
000 I have installed demo for Maya and v-ray-blender 2.56 and download examples of the site, but when I run a record, I only see the lights in the log I have no error but 13 warnings.
If You see just lights and render is completly dark/without any mesh that is for sure in the scene hit 'mesh export' before You hit 'render'
001 I can't find exporter folders on mac?
They are hidden inside vb.app just click right button and choose: show content.
Then navigate to .../MacOS/X.XX/scripts/startup/vb25
002 What's the quickest way to update the script?
Instaling git (Git for OS X)
and then follow instruction here:
https://github.com/bdancer/vb25/wiki/Installation
After all - everytime u want to update just navigate(in terminal) to exporter folder and type : git pull
003 Can I load/save render setings and copy them to another computer or vb instalation?
Yes, save/load seting are in vb render tab:
Saved settings are stored:
blender.app/Contents/MacOS/2.56/scripts/startup/vb25/presets
004 I want to render a channel with one selected object?
Go to:Render>Channels> add ObjectSelect
then below type correct ID number from Pass Index (it's in Object>Relations)
005 Vray renders broken png?
Don't change default compresion: 90%
006 Vray (on osx) doesnt renders when i select output path?!
a. check if there are some spaces in the path (must be without spaces)
b. working output paths should look similar to that:
If output folder is in MacintoshHD/Renders/ then
path in output tab must start from fe. /Renders/
007 error: Error parsing command line
Like in 006 check the output path
008 I have a few objects i want to render out separately, but each element has to have the light interactions with the other elements intact, although the other elements would have to be excluded from the final image.
Select Camera and go to it's settings tab, check Hide Objects, then choose from camera”
009 Vray doesnt render and there are errors in terminal:
File "/Applications/.../vb25/render.py", line 2276, in render
process= subprocess.Popen(params)
File "/Applications//subprocess.py", line 646, in __init__
errread, errwrite)
File "/Applications//subprocess.py", line 1157, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory
location:<unknown location>:-1
Check Path to exporter in render tab. Should looks like this: /Applications/Autodesk/maya2010/Maya.app/Contents/vray/bin/vray.exe
010 How to quick render all with one material without assigning manually it to all objects?
Render>Globals tab >Material Override button
011 Where is meshlight ?
Select object You want to be a ligh then go to object tab>light
012 When no tile is selected in texure tab,it is rendered on the center of the object, why?
Yes it is placed where the actually origin of the object is set.
013 How to make object that gives reflection but is not seen by the camera?
This can be made by material setup. Select object You want to be unvisible for camera then in material tab check on render tab and uncheck visible to camera (but check on reflection or refraction)
014 How to make point light o have smooth transition beteen light area and darkness?
Just setup the sphere segments to 0.
015 Where is "number of passes" in light cache ?
To set them manually check off 'autonum passes”
016 Are "Interpolation samples" in Light Cache (in 3ds) the same as Samples in Filter (light cache tab in VB) - is this param bluring them?
Yes.
017 (osx) light cache autosave optiion doesnt save file (it creates only folder)
This is autosave path issue. Path should look like this on mac: //.../././././DestinationPlace/xxx.vrlc
018 Can I exclude more than one objects (i dont see any button to add another one) ?
You could add object names separated by ';' (look at tooltip); you could also add group (also ';' separated list).
019 Whats the difference beetwen saving exporter and gi settings?
Global saves all (displace, caustics, gi, cm etc) settings. GI - just GI.
020 How to dissable object or material from generate/recieve caustics?
Wrapper (in material and object). Wrapper should be applied both to objects that are giving caustics and reciving caustics.
021 How can I specify material for hair? f.e. i have two praticle systems assigned and want both of them to have different materials - i can specify material number but what then?
This id is material position in particle emitter materials (same as in Internal).
022 DOF is so f... slow?
Yep, thats why U can use zdepth channel(channels are in render tab) and make dof in photoshop. Just add this channel and render without dof.
Rest of how to is here: http://www.trinity3d.com/tutorials/vray ... ndex.shtml
If zdepth is too low contrasty You can adjust this in photoshop ( white-closer,black-further).
023 how use the 'node textures'?
You can start from looking at this file:
http://dl.dropbox.com/u/19725436/VB_mat ... odes.blend
024 error passing command line (61)
Probably the vrlservice.exe isn't running, go to programs>chaos group and run it.
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