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matte surface casts shadow onto another matte surface
Hi,
I am experiencing an issue where matte surfaces casting shadow onto each other in Vray for Maya 3.1. From what I recall, this wasn’t an issue in 3.0. I am wondering if something has changed or my setup is off.
Here is the wireframe. I roughly reconstruct the container and ground based on the background plate.
The container and ground are assigned with Vray material where plate is projected from shot camera for reflection.
Both container and ground are also assigned with VrayObjectProperties with settings below.
Matte Surface: on
Alpha Contribution: -1
Shadows: on
Affect Alpha: on
No GI on other mattes: on
Matte for all secondary rays: Disable.
Beauty render:
The issue: the container which is a matte surface. Its shadow is already in plate, but it also casts shadow onto the ground which is also a matte surface. I cannot turn off Cast Shadow for the contain because I need it to cast shadow onto spheres (CG character to be integrated).
Double shadow and wrong shadow:
I circle out the double shadow area where the container cast shadow onto the ground.
Maya scene with plate and HDR attached. (Maya 2016 and VRay 3.1 nightly build of late December 2015)
container_scene_v01_upload.mb.zip
I am experiencing an issue where matte surfaces casting shadow onto each other in Vray for Maya 3.1. From what I recall, this wasn’t an issue in 3.0. I am wondering if something has changed or my setup is off.
Here is the wireframe. I roughly reconstruct the container and ground based on the background plate.
The container and ground are assigned with Vray material where plate is projected from shot camera for reflection.
Both container and ground are also assigned with VrayObjectProperties with settings below.
Matte Surface: on
Alpha Contribution: -1
Shadows: on
Affect Alpha: on
No GI on other mattes: on
Matte for all secondary rays: Disable.
Beauty render:
The issue: the container which is a matte surface. Its shadow is already in plate, but it also casts shadow onto the ground which is also a matte surface. I cannot turn off Cast Shadow for the contain because I need it to cast shadow onto spheres (CG character to be integrated).
Double shadow and wrong shadow:
I circle out the double shadow area where the container cast shadow onto the ground.
Maya scene with plate and HDR attached. (Maya 2016 and VRay 3.1 nightly build of late December 2015)
container_scene_v01_upload.mb.zip
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