Hi all,
In MentalRay we have an option to output a "full pass" with an "hold-out" option.
Like for example a full shadows, or a full beauty behind all objects.
I explain :
Here a render :

Here the shadows pass :

And the reflection pass :

An a beauty pass (it is like the "principal render") :

Now i set this pass into a contributionMap, with the floor in the contributionMap (in Vray, it will be like the light select renderElement, and the relationship editor. Just connect some objects to a renderElement).
Here the result :
Shadows pass:

Reflection pass:

Beauty pass :

Now here the "BIG OPTION a would in Vray" :
Here in the reflection pass :

The hold-out option ! I uncheck in all renderPass.
Now i render.
Here the result :
Shadow pass (without hold-out) :

Reflection pass (without hold-out) :

Beauty pass (without hold-out) :

All pass are "full" in one render for the floor.
Currently, for example in vfx, to separate the floor with a character, we create a renderLayer, with the character and the floor with "primary visibility" off.
After, we create a another renderLayer with the floor (with a matte shadows renderElement, an occlusion in extraTexture renderElement, etc etc), and the character with "primary visibility" off.
We must to calcule 2 times, if we want to separate 2 characters, we must to calculate 4 times, 3 characters, 6 times, etc etc...
With this option, we will calculate... 1 time.
Thanks.
In MentalRay we have an option to output a "full pass" with an "hold-out" option.
Like for example a full shadows, or a full beauty behind all objects.
I explain :
Here a render :

Here the shadows pass :

And the reflection pass :

An a beauty pass (it is like the "principal render") :

Now i set this pass into a contributionMap, with the floor in the contributionMap (in Vray, it will be like the light select renderElement, and the relationship editor. Just connect some objects to a renderElement).
Here the result :
Shadows pass:

Reflection pass:

Beauty pass :

Now here the "BIG OPTION a would in Vray" :
Here in the reflection pass :

The hold-out option ! I uncheck in all renderPass.
Now i render.
Here the result :
Shadow pass (without hold-out) :

Reflection pass (without hold-out) :

Beauty pass (without hold-out) :

All pass are "full" in one render for the floor.
Currently, for example in vfx, to separate the floor with a character, we create a renderLayer, with the character and the floor with "primary visibility" off.
After, we create a another renderLayer with the floor (with a matte shadows renderElement, an occlusion in extraTexture renderElement, etc etc), and the character with "primary visibility" off.
We must to calcule 2 times, if we want to separate 2 characters, we must to calculate 4 times, 3 characters, 6 times, etc etc...
With this option, we will calculate... 1 time.
Thanks.
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