What is alpha channel in V-Ray?

What is alpha channel in V-Ray?

Overview. The Alpha Render Element shows the transparency of objects in the scene as grayscale colors. Solid geometry is represented by solid white, while those areas not blocked by geometry within the scene are black. Pixels at antialiased edges have varying shades of gray, as do semi-transparent surfaces.

How do you use V-Ray shadow catcher?

Select the object, which will become a shadow catcher. In our case we select a plane. Right click on it in the viewport and select V-Ray properties. Alternatively, you can also use the Make a V-Ray shadow catcher through the V-Ray Object Properties ( ) button on the V-Ray toolbar, which loads the same settings for you.

What is shadow bias in V-Ray?

Shadow bias – Moves the shadow toward or away from the shadow-casting object (or objects). If the value is too low, shadows can “leak” through places they shouldn’t, produce moire patterns or make out-of-place dark areas on meshes. If the Shadow bias is too high, shadows can “detach” from an object.

What is Alpha in 3ds Max?

Detailed tutorial to show how to use alpha or opacity maps in 3ds max. This technique can be used to create stuff like low poly foliage, trees, hair etc. In this tutorial, I am going to show how to use Alpha or Opacity maps within 3ds max. Alpha or opacity maps are frequently used in games.

How do I reduce sun light in VRay?

You can also specify the VRaySun as the sun type inside a 3ds Max Daylight system. Enabled – Turns on and off the sun light. Intensity multiplier1 – An intensity multiplier for the VRaySun. Since the sun is very bright by default, you can use this parameter to reduce its effect.

How to set alpha contribution to 0 in Vray glass object?

10-23-2018 06:32 AM Hi, you need to change “affect channels” option to “color+alpha” or “all channels” under refraction advanced rollout in glass material attributes. Or you can create vrayobjectproperties for glass object, and set alpha contribution to 0, under Matte Properties in vrayobjectproperties attributes.

How to enhance shadows in V-Ray render elements?

With V-Ray render elements is possible to enhance shadows in post production. Then save all elements clicking on “ Save all image channels ” at the top of your V-Ray Frame Buffer. These are all the elements you’ll get: Alpha, RBG Color, VRay Shadows.

How to use the VRay frame buffer with after effects?

We also want to setup the VRay frame buffer to save a separate colour and alpha channel for us. To do that we simply check “Save separate render channels”, tick all the boxes and choose where to save the files. This also solves the problem of VRay not saving render pass files. Now we can begin our basic comp in After Effects.

How do I hide the Shadow in Vray?

change ‘Alpha contribution to’ -1.0. change ‘Alpha contribution to’ -1.0. It’s useful to hide the subject before rendering the shadow. This prevents the edge pealing away if you blur it in post. To do this simply go into the object properties dialog and turn off “visible to camera.” The VRay Shadow element is unusual.