Fades colors based on depth-distance from scene elements, and fades alpha based on camera distance. Based on a concept from the game Abzû.

Parameters

Portal Card Properties

• Fade Thresholds – Blend the color based on the distance between the mesh and the depth of the last rendered object at the same screen coordinate. Pixels with distance below the x-value get tinted with Fog Start Color, and pixels with distance over the y-value get tinted with Fog End Color, with a smooth transition in between.
• Distance Thresholds – Fades the alpha of the mesh based on the distance between the camera and the mesh pivot point. The mesh becomes invisible at distances over the y-value, and is at full alpha at distances below the x-value.
• Edge Fade – Fades the edges of the mesh based on UV corodinates, with separate values for the U- and V-axes.
• Fog Start Color – Color of the portal fog close to the mesh.
• Fog End Color – Color of the portal fog far away from the mesh.