Quick Passes

Hi! I haven't tested your script yet but I think this line cause an error on system without vray installed ...

local vr=RendererClass.classes[(findItem RendererClass.classes vray)]()

Martin

oh gee.. thanks. I actually missed that one. Thanks for pointing me out.

replaced the line with

local vr=try(RendererClass.classes[(findItem RendererClass.classes vray)]())catch()

now it works

thanks again

Yes it does work, but I'm not absolutely sure that it will find the vray renderer with this line thought... maybe you could findstring every element of the RendererClass for the "vray" string, just to make sure it not "vray_1_70" or something like that.

Martin

yes you are right.. Ill test that out.

I get the following "unknown property" error:

VrayRR.moblur_qmc_minSamples=renderers.current.moblur_qmc_minSamples

However, I am using Max 2009 64bit with vray 1.5 sp2. Any ideas? Sounds very useful

I unfortunately have no chance to try it with max 2009 or Vray sp2 cause I dont own them. If I have the chance, I will look for that.

The line which throws the error is motion blur subdivision samples of Vray.

there could be some changes on motion blur sampling in Vray 1.5 sp2. Because until that line the script checks for camera properties and depth of field properties of the current Vray renderer (if the current renderer is Vray) If there was a problem related with initializing of Vray it would throw an error with a previous line.

you can try this,

-Assign Vray renderer as the render engine

-open maxscript listener

-write "show renderers.current" and press "Shift+Enter" to execute

-look for the lines starting with moblur.(I also appreciate if you can post me this list)

-check if there is the line ".moblur_qmc_minSamples : integer"

 if that line exists, I dont have any idea how to fix it right now.

if that line doesnt exist, look for a similar one. It may contain also subdivision or subdiv.

-replace the "VrayRR.moblur_qmc_minSamples=renderers.current.moblur_qmc_minSamples" line with "VrayRR.moblur_qmc_minSamples=renderers."The new property"

You can also delete the whole line for good, but that means your passes' motion blur wont match with the scene's if you change the subdivision levels from default.

hope this helps.

Just jumping in here.

The VRay parameter is actually "moblur_dmc_minSamples" (DMC instead of QMC)

So the line in your script becomes:

VrayRR.moblur_qmc_minSamples=renderers.current.moblur_dmc_minSamples

FYI, masquerade I've attached a text file with all the VRay renderer properties.

Christopher Grant
ScriptSpot.com

Thanks Chris. That was really helpful.

I didnt try but I think both "qmc" s should be replaced with dmc. So I think the line should be

VrayRR.moblur_dmc_minSamples=renderers.current.moblur_dmc_minSamples

Thanks again for the list.

Thanks for that. I'll give it some testing.

Another very (VERY) useful feature would be to be able to render a 'reflection matte'. i.e. where an object reflects the environment, it shows white. Where an object reflects another object, it shows black. In this way, *just* the reflections can easily be isolated in post production without resorting to screen layers etc that can knock out any dark areas of reflection and result in poor antialiasing of the reflective component.

Is this something that you could implement?

Thats a good Idea birket. If I understand it correctly you want to render a matte pass to seperate object reflections and environment reflections, right? So both making all object reflections on selected objects white and everything else black, or making all objects' reflections black and environment reflections white should work for you.

Let me know If I understood something wrong.

Ill try to implement it to matte section as soon as I can.

Thanks.

I think thats right. Basically, I think it would be useful to render *only* the reflections of other objects - we usually replace the environmental reflections in post production (of a glass building facade for example).

The way we do this at the moment is to make the chosen objects 100% reflective (black diffuse, white in the reflection, black in the refraction) and all the other ojects 100% black. We then make the environment 100% white. At render time, we just have a black and white image (though we must manually 'paint out' the white of the surrounding environment that isn't the reflected environment)

Ah thats a bit different. You want to make the selected objects reflect only the environment. All other objects will be black. What I am trying to implement right now is a matte render which shows only the object reflections over selected objects.

If you reach me via e-mail we can discuss it further and maybe I can customize the script for your needs.

this tool is very interesting :) thank you for sharing...

Can you share some info about the use of tabs in a rollout? I'm interested in it, because I'm working on some script that works together. Thanks a lot.
Brave

Brave, I sent you a PM related to the subject.