Hairdini: The Houdini and Substance Designer Procedural Hair Card kit.

Sample graph in Houdini for the Hairdini HDA.

Check out the documentation:

"https://www.psynema.com/hairdini-houdini-procedural-hair-documentation/"

Sample comb map from the Hairdini Substance Designer Material. This gives individual hairs their own specular highlight.

Check out the Substance Documentation:

"https://www.psynema.com/substance-designer-hair-material/"

Sample of the frizz height parameter in the Hairdini Substance Graph. The warp pattern for frizz is overlaid the height map (with an adjustable parameter). This gives the curls a depth value to go along with the warp.

Creating a hair shader from the directional ani offset Pivot Painter sample in Unreal Engine to ANIMATE the hair. See the video for animation samples.

UE4 Shader Setup Guide:

"https://www.psynema.com/hairdini-unreal-engine-shader-setup-guide/"

The Hairdini Substance Graph makes use of 0-1 texture space so each Hair Card has edge feathering. Above is an option to use a texture atlas to put smaller hairs in the left partition and darken them to thin them out (adjustable).

Use Pixel Depth Offset and Comb Maps to individualize each strand. Each strand has its own specular highlight.

Setting up Pivot Painter in Unreal using UVs to tell Unreal to animate the tips more than the roots by a texture coordinate node.

Style your hair cards.

Comb map data is also stored in the Houdini HDA in addition to the Substance Comb map output. Mix them together to highlight curls in your hair and each strand.

The Substance Designer Comb map mixed with the Houdini Comb map data, which is stored in the Houdini HDA's uv4 and uv5 attribute sets and are pulled into Unreal Engine via a texture coordinate node.