Converting .vrmat to Modo V-Ray material?

[Monkeybrother]

Like the topic, is it possible? Or is it possible to access the vrmat's properties from a script, so that I can make a converter myself?

[Monkeybrother]

I just noticed that the vrmat files are some sort of xml like structured text files, should be pretty easy to create a converter script. I'll give it a try.

[vlado]

It may be possible, however the .vrmat files can use shading nodes that do not have equivalents in Modo.

Best regards,
Vlado

[Monkeybrother]

Thanks, I'll see how far I get.

[Monkeybrother]

I've had a quick look and started on a converter script. I noticed that RGB values go from 0.0 to 1.2. Why is that?

[vlado]

Which RGB values?

Best regards,
Vlado

[Monkeybrother]

In the .vrmat file. Here's an example:


<Asset url="/SuperTex/BRDFVRayMtl/translucency_color" type="texture" layout="" renderer="vray">
<plugin>
<vrayplugin name="TexCombineColor" type="texture">
<parameters>
<parameter handler="default" name="color" type="color">
<value><r>1.2</r><g>1.2</g><b>1.2</b></value>
</parameter>
<parameter handler="default" name="texture" type="acolor texture">
<value></value>
</parameter>
<parameter handler="default" name="texture_multiplier" type="float">
<value>1.0</value>
</parameter>
</parameters>
</vrayplugin>
</plugin>
</Asset>

Which RGB values?

Best regards,
Vlado

[vlado]

In this particular case, someone probably wanted to boost the translucency result. But it's pointless anyways as V-Ray will clamp the colors internally.

Best regards,
Vlado

[Monkeybrother]

That example is from a testing material I made myself in 3ds max. I just tried again in both max 2014 and 2015, if I set a color to 255,255,255, it comes out as 1.2 in the .vrmat file.

[Monkeybrother]

Also, I can't find the self illumination value in the .vrmat file. Is that not yet supported?

[vlado]

That example is from a testing material I made myself in 3ds max. I just tried again in both max 2014 and 2015, if I set a color to 255,255,255, it comes out as 1.2 in the .vrmat file.

Then it seems like a conversion bug - will look into it.

Best regards,
Vlado

[anna.zaharieva]

Hi,
Could you send us .vrmat file, please?
Also I would like to ask you do couple of steps and then test conversion again.
1. Open MaxScriptEditor from MaxScript main menu
2. File->Open... from <C:>\Program Files\Autodesk\3ds Max <2013,2015..>\scripts\Startup select vraymtlexport.ms and open it.
3. Press Ctrl + E or Tools->Evaluate All
Do the same (step 2 and 3) for vrvismatconvertor.ms

Best regards,
Anna

In the .vrmat file. Here's an example:


<Asset url="/SuperTex/BRDFVRayMtl/translucency_color" type="texture" layout="" renderer="vray">
<plugin>
<vrayplugin name="TexCombineColor" type="texture">
<parameters>
<parameter handler="default" name="color" type="color">
<value><r>1.2</r><g>1.2</g><b>1.2</b></value>
</parameter>
<parameter handler="default" name="texture" type="acolor texture">
<value></value>
</parameter>
<parameter handler="default" name="texture_multiplier" type="float">
<value>1.0</value>
</parameter>
</parameters>
</vrayplugin>
</plugin>
</Asset>

[Monkeybrother]

Sure. Where do you want me to send it?

I did exactly what you described and the file came out the same, with 1.2 values.

Hi,
Could you send us .vrmat file, please?
Also I would like to ask you do couple of steps and then test conversion again.
1. Open MaxScriptEditor from MaxScript main menu
2. File->Open... from <C:>\Program Files\Autodesk\3ds Max <2013,2015..>\scripts\Startup select vraymtlexport.ms and open it.
3. Press Ctrl + E or Tools->Evaluate All
Do the same (step 2 and 3) for vrvismatconvertor.ms

Best regards,
Anna

[anna.zaharieva]

Send it to anna@chaosgroup.com . Thanks!
And one more test, please
First evaluate vrvismatconvertor.ms and then vraymtlexport.ms.
Test conversion again.

Sure. Where do you want me to send it?

I did exactly what you described and the file came out the same, with 1.2 values.

[vladimir.nedev]

Like the topic, is it possible? Or is it possible to access the vrmat's properties from a script, so that I can make a converter myself?

We do plan on adding a vrscene material importer to V-Ray for MODO. It should be easy to make it work with vrmat files as well as these can be loaded as a vrscene internally.
The importer will probably have to resort to using nodal shading for more complex materials though. But first we need to get nodal shading working in V-Ray for MODO.

Greetings,
Vladimir Nedev