Changing vray settings in a 3dsmaxcmd.exe pre-render script

[instinct]

It seems this does not work even though it pretends to.
I want to set vray settings in a 3dsmaxcmd.exe prerender script to be able to submit some special jobs from outside of max.


As a testcase i have a script that turns off final image, turns on gi, sets gi settings. When i filein that script in the gui everything works as expected.
If i run it as a prerender script i do not get my vrmap saved out.


Now to debug i started writing values to a text file. So for example:


format (renderers.current.options_dontRenderImage asstring+"\n") to:f
renderers.current.options_dontRenderImage =true
format (renderers.current.options_dontRenderImage asstring+"\n") to:f




Doing so showed that it seems the corresponding values are changed. as i can see the before/after difference. It seems the settings are ignore though as i am not ending up with my irrmap.


Any ideas?


Cheers,
Thorsten

[tashko.zashev]

Currently V-Ray doesn't respect any scripts or commands used as a pre-render scripts. This is something that we have to fix for the next release.

[instinct]

Damn. Thanks for the feedback though.

[vlado]

The scripts are actually respected and they do work, but by the time they are executed, V-Ray has already cached its parameters from the parameter blocks. You could write a V-Ray settings plugin to do what you need - these can modify V-Ray's parameters directly in its SequenceData structure. Or you could put that code in the setupSequenceData() method of a render element if you have one handy.

Best regards,
Vlado

[instinct]

Hm. I could cook that up i guess. But the code is dynamically generated everytime. Is there a call that would cause vray to re-evaluate its parameters there?

Cheers,
Thorsten

[vlado]

Is there a call that would cause vray to re-evaluate its parameters there?

Not right now.

Best regards,
Vlado