Unity Products:Amplify Shader Editor/Refract
Refract Node
The Refract node calculates a refraction vector from a given Incident vector, a surface Normal vector and a ratio of Index of Refractions at the surface's interface. Both Normal and Incident vector should be normalized.
A cast is done to match the input type with the most amount of channels if Normal and Incident vectors have different channel amounts. This will also determine the refracted vector size.
Nodes used:
View Dir,
Negate,
World_Normal,
Float,
Refract,
Texture Sample
| Node Parameter | Description | Default Value |
|---|---|---|
| Incident | Incident vector ( should be normalized beforehand ). Only visible if the respective input port is not connected. | 0,0,0,0 |
| Normal | Normal vector ( should be normalized beforehand ). Only visible if the respective input port is not connected. | 0,0,0,0 |
| Eta | Ratio of index of refraction, determines amount of incident ray that is refracted. Only visible if the respective input port is not connected. | 0 |
| Input Port | Description | Type |
|---|---|---|
| Incident | Incident vector ( should be normalized beforehand ). | Float4 [1] |
| Normal | Normal vector ( should be normalized beforehand ). | Float4 [1] |
| Eta | Ratio of index of refraction, determines amount of incident ray that is refracted. | Float |