Release Notes¶

NVIDIA HairWorks 1.1

NVIDIA HairWorks is a library for simulating and rendering dynamic hair and fur

What’s New¶

General

1.1

Perf improvement up to 2x compared to 1.0
Spline multiplier control for perf/quality trade-off
Refined Import options
Batch Editing multiple assets
Collision Shapes
Hair Pins
Hair-Hair Interaction
Refined Stiffness controls, and bending control
Refined waviness controls
Specular break up and glints for dirty hair look
Surface normal computation for long hair for better environment lighting
Texture along strand color control
Some attributes can now be controlled by a curve editor from root to tip
Control textures are now used per RGBA channel.
Refined Continuous LOD controls
Images in contained documentation may not be up to date to actual software, though the intent is to keep them in sync, some may be slightly different.

No multi material support for any mesh type in the HairWorks viewer.
Currently there is no support for adding extra animation files via fbx in the HairWorks viewer.
Shadows may flicker a bit depending on the asset in HairWorks viewer. This is due to shadow resolution and depends on the shadow sampling techniques used in a given game engine.
Guide hairs must be placed on the vertex of a growth mesh. DCC plug ins will move guides to closest vertex if they are not properly aligned.
Only one guide per vertex is supported. Extra guides on vertex will be ignored at export.
Number of cv/knot sampling per guide hair is the same per asset. Sampling is adjusted in DCC.
Hair Interaction does not opperate between hairs of different assets.
Alpha sorting is not supported. So the root alpha feature must be used with limited range.
The viewer currently supports only one character. However the character can have multiple hair assets.

Source files were generated with:
- 3dsmax 2013 native 3dsMax Hair and Fur modifier.
- Maya 2013.5 Shave and a Haircut from www.joealter.com