Bob's Fur Shader

A detailed fur shader

The shader is available in 8, 16 and 32 layer variants (having predictable performance impacts each)

All example images are taken with the 8 layer variant, which has proven plenty good enough for vrc.

NOTE: ALL toggles use [#pragma shader_feature] along with pre-processor directives. This means that if toggled off, the code will not be included at all in the shader snippet, and that means TOGGLES CANNOT BE ANIMATED AT RUNTIME. Use the present strength sliders to control features at runtime. Also, if you aren't using a feature, toggle it off to save performance.

features include:

• Standard
  • Main Texture + Tint
  • Ambient Occlusion map + strength slider
  • Emission + Tint
  • Ambient Light slider (great for rooms with dodgy lighting)
  • Metallic(R)Smoothness(A) + sliders for both
  • Shadow Attenuation slider
  • Normal Map + strength slider
  • Alpha Cut-off slider
• Specular Highlights
  • Toggle
  • Colour (to tint world light colour)
  • Strength

Off

On

• Specular Reflections
  • Toggle
  • Size slider
  • Strength slider
  • Smoothness threshold (to activate spec reflections)

Off

On

• Fresnel Edge Lighting
  • Toggle
  • Power slider
  • Strength slider

Off

On

• Sub Surface Scattering
  • Toggle
  • Mask (RGB)
  • Power slider
  • Scale slider
  • Distortion slider

Off

On

• Sparkles
  • Toggle
  • Mask (G)
  • Noise scale
  • Noise threshold
  • Colour
  • Speed
  • Brightness
  • Sparkle Coordinate model (UV, XYZ)

Off

On

• Standard Fur
  • Noise scale
  • Noise scale multiplier (makes animating simpler between multiple materials with different noise scales)
  • Height
  • FurTips (Tints the base of hairs, great for mimicking AO)
  • Mask (grey values affect height)
• Fur Grooming
  • Toggle
  • Brush Offsetting method (UV, DISPLACEMENT)
  • Normal Map
  • Mask (B)
  • Strength slider
  • Scale multiplier (multiplies strength)

Off

On

• Fur Clumping
  • Toggle
  • Offsetting method (UV, DISPLACEMENT)
  • Mask (G)
  • Noise Scale
  • Strength
  • Coordinate model (UV, XYZ)

Off

On

• Fur Wind
  • Toggle
  • World Space Wind Direction (Vector)
  • Strength
  • Speed
  • Scale (of the turbulence map)
• Fur Velocity (WIP)
  • Toggle
  • Strength
  • X velocity
  • Y velocity
  • Z velocity
  • Velocity magnitude
• MISC
  • Position Map (used by XYZ coordinate model to avoid mesh deformation artifacts)(HDR)