Versions Compared

Old Version 9

changes.mady.by.user Gergana Lilkova

Saved on

compared with

New Version 10

changes.mady.by.user Gergana Lilkova

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

This page provides information on the Mtl2Sided material node.

 

Overview

...

Section
Column
width50%

V-Ray Mtl2Sided material node is a utility provided with the V-Ray renderer. The material allows seeing the light on the backside of objects.

Use this material to simulate thin translucent surfaces like paper, cloth curtains, tree leaves, etc.

 

UI Paths:

...

||mat Network|| > V-Ray > Material > V-Ray Two Sided

Column
width5%

 

Column
width45%

Image Added

 

Node

...

Section
Column
width70%

The Mtl2Sided node provides inputs for controlling various material properties. Some correspond to parameters in the section below.

front – Specifies the material which is going to be used for front-side faces as defined by the object normals.

back – Specifies the material V-Ray uses for back-side faces as defined by the object normals.

Column
width5%

 

Column
width25%

Image Modified

 

Parameters

...

Section
Column
width50%

Translucency – Determines which side (front or back) relative to the camera is more visible in the rendering process. By default this value is 0.5, which means that both the side facing the camera, and the one facing away from it, are visible to the same degree. When this parameter is closer to 0.0 the more , more of the material facing the camera is going to be seen. When it is closer to 1.0, the more  more of the back material is seen. See the Translucency example below.

Multiply by Front Diffuse – When enabled, multiplies the back side color by the cached diffuse color of the front BRDF. See the Multiply by Front Diffuse example below.

Force Single-sided Sub-materials – When enabled (the default), the sub-materials render as one-sided materials. Turning this option off is not recommended.

Column
width5%

 

Column
width45%

Image Modified

 

Anchor
translucencyEx
translucencyEx

...

 

Example: Translucency

 

This example shows the effect of the Translucency parameter. We use a V-Ray Two Sided material with two different V-Ray Materials for the front and back sides. Note that the Multiply by Front Diffuse option is enabled.

 

Section
Column
width25%

 

Column
width50%
Image slider
startIndex1
Panel
borderStylenone

Image Added

Translucency is set to black.

No light is passing through and the back material is not visible.

Panel
borderStylenone

Image Added

Translucency is set to grey.

This allows light from the back to pass through and makes both materials visible.

Panel
borderStylenone

Image Added

Translucency is set to white.

 This allows all the light to pass through. Only the back material is visible in the render.

Column
width25%

 

 

Anchor
MulFrontDif
MulFrontDif

...

 

Example: Multiply by Front Diffuse

 

This example shows the effect of the Multiply by Front Diffuse parameter.

 

Section
Column
width25%

 

Column
width50%
Before after
afterLabelon
beforeLabeloff
Panel
borderStylenone

Image Added

Panel
borderStylenone

Image Added

Column
width25%

 

 

Notes

...

Fancy Bullets
typecircle
  • This material gives best results when assigned to singleside objects (non-shelled) objects like planes, extruded splines, etc. Otherwise, it can lead to extremely longer render times.