Labs Normal Rotate compositing node

Rotates a normal map while correcting recalculating it’s internal vectors.

A traditional Xform is not the correct way of rotating a normal map. Because a normal map represents directions and not colors, the red/green/blue channels always need to be the correct representation of the Tangent, Binormal and Normal Axis.

Note

Replaced by Vector Transform COP in Copernicus. To be removed in Houdini 24.0.

XForm rotating a normal map

Normal Rotate rotating a normal map

Isolating only the green channel will be a better way to see what is happening. Ignore the background issues on the Xform node.

XForm rotating a normal map

Normal Rotate rotating a normal map

Parameters ¶

Angle

Degrees of rotation (in angles) for the image. From -180 to 180.

Compositing nodes

Labs Attribute Import

Imports geometry attributes as image planes using a UV attribute.
Labs Blackbody

Generates a blackbody ramp, or colorizes a black and white image with a blackbody ramp.
Labs Demosaic

Converts a single mosaic (flipbook/subuv) image into a sequence of sub images based on the frame.
Labs Grid Texture

Generates a texture that can be used as a simple resolution checkerboard.
Labs Normal Color

Simple helper node to generate the default normal color.
Labs Normal Combine

Overlays 2 normal maps together.
Labs Normal From Grayscale

Convert a grayscale image into a normal map.
Labs Normal Invert

Invert individual channels on an image.
Labs Normal Levels

Adjusts black point, white point, and midrange to increase, balance, or decrease contrast on a normal map.
Labs Normal Rotate

Rotates a normal map while correcting recalculating it’s internal vectors.
Labs Normalize Normal

Ensures the normal map is balanced in a unit vector.
Labs Substance Archive

Load Substance Archive (SBSAR) Files into COPs