(c) [0x1] Software & Consulting GmbH, 2017 | Version 2.0 | November 16th 2017
13.4.2.2 Blending attributes
Blending section
Weight
Sets the overall opacity of the material layer. A value of 0 shows the base material, a value of 1 the layered material.
Mode
Defines the way how the blending is calculated
Constant
This mode determines the opacity of the layer directly, without any dependency on the incident angle.
Curve: The weight is multiplied by a Fresnel-like customizable curve. This method is intended to provide artistic control.
At 0 Degrees: Sets the weight for angle of incidence normal to the surface.
At 90 Degrees: Sets the weight for angle of incidence at 90 degrees to surface normal.
Exponent: Describes the transition between the values set at the attributes At 0 Degree and At 90 degree. It is the exponent for Schlick's approximation.
Fresnel
The weight is multiplied by a Fresnel curve, calculated using the provided index of refraction. This is typically the physically-correct approach to rendering varnishes, clear coats, and Fresnel reflections.
Refraction Index:
The refraction taken into account by the Fresnel term to define the specular reflection. The attribute is defined using a float to describe the Fresnel Index.
Fresnel (Advanced): Same behaviour as Fresnel.
Refraction Index:
The refraction taken into account by the Fresnel term to define the specular reflection. The attribute is defined using a color. So for each channel R,G,B a different values for the Fresnel Index are possible.
Refraction Index
Defines the refraction taken into account by the Fresnel term to define the specular reflection.