Amazing Z Depth Pass

[kweechy]

Stumbled across this shader recently:

http://www.puppet.tfdv.com/download/shaders_p_e.shtml

It takes care of all the classic Z depth issues in CG; namely, that you can't accurately blur reflective/refractive objects in post due to traditional Z passes treating everything as solid/lambert materials.

The way that it breaks Z, Reflect and Refract into R, G and B is truly the icing on the cake. You then blur your Reflect against G, Refract against B and everything else against R.

If something like this could make its way into VRay somehow, that would be really amazing.

[bigbossfr]

The best is Zdepth with transparency, refraction, reflection, and glossy support. ^^

[kweechy]

Yep and if it's all integrated in VRay, there's no reason it couldn't simply be a set of options you add into a material under "Extra VRay Attributes". That way it looks at your shader's Reflection Gloss and Refraction Gloss for the Z calculations.

Anyway would just like to say again how amazing this feature would be. It's so key for applying DoF correctly in post.

[RobPhoboS]

Just saw this posted on CGTalk, and he's referring to this:
http://www.puppet.tfdv.com/download/z_e.shtml



Someone mentions setting the 'Affect Channels' setting in refraction from 'Colors only' to 'All channels', although I need to test that out to see if it works.


Red channel - main Z, Green channel - reflection Z, Blue channel - refraction Z

[kweechy]

I don't believe that affects the Zdepth Render Element as I recall.

[RobPhoboS]

I don't believe that affects the Zdepth Render Element as I recall.

So this could be a great new feature to add into vray then

[bigbossfr]

Refraction to "affect all" affect Zdeph. The probleme is : we need an "affect all" for reflection...

[paulDryzen]

sounds nice! I have a similar request

[RobPhoboS]

This is the CGT thread I was talking about:
http://forums.cgsociety.org/showthre...f=87&t=1017987

It looks like TaKIKO has a kind of work around for the moment.
'I kinda got the pass by using a blend material and 3 different rgb shaders ex : blue refractive shader +green reflective shader + red zdepth shader...
but its a shader based pass which I would think defies the whole purpose of one pass your looking for.'

kAzIDamUI:
'basically, just 2 things missing :
- "affect all channels" in Reflection
- zdepth pass spliting diffuse, reflection and refraction as R/G/B.'


Any thoughts on this guys ?

[Yannick]

Now waiting for Vlado to say, it is in the last nightly....

[paulDryzen]

I can not find the button for reflections

[bigbossfr]

Hey, any new about the "affect all channels" in Reflection ?
A need this feature for a shot.
(Is it on 3dsmax ?)
Thank !

[bigbossfr]

Hi,
The "affect all channels" into VRayMtl reflection works great !
Now we have relfection and refraction in the Zdepth.
Thanks !

[pechart]

Now that's a good thing to hear! Hopefully it won't look like crap once comped

[Dariusz Makowski (Dadal)]

U want to use refl/refr zdepth as masks for DOF pass?