Parallax Delta Depth Node

Description

This node calculates the UV offset for a certain UV channel. This channel should then be subtracted from the UV of the texture to which the parallax occlusion mapping is to be applied.

• Data View Tangent Space - a View vector in Tangent space should be connected here.
• Data UV - input UV to which the parallax effect is to be applied.
• Data Max Layers - number of parallax layers, when we look at the surface at a steep angle. Higher values increase quality but reduce performance.
• Data Min Layers - number of parallax layers, when we look at the surface orthogonally. Higher values increase quality but reduce performance.
• Data Noise - noise intensity value for building parallax layers in the [0, 1] range.
• Data Scale - depth value (in meters) to which the surface is to be deepened visually if the corresponding texel of the heightmap is black.
• Data Screen Coord - the Screen Coord node should be connected here.
• Data UV Aspect Ratio - texture aspect ratio. Should be equal to 1, for a square texture.
• Texture Height - heightmap texture, where R channel stores concavity values. Black - maximum concavity, white - no parallax effect is applied.