Using AH_Celshader

Inspire 3D and LightWave 5.0 users will be happy to know that they, too, can mimic some of the "cartoonier" palettes out there with the original Cel Shader.

The Method:
  1. Set the RGB values of your surface to the desired "shadow" values.
  2. Apply AH_CelShader to your surface.
  3. Use the Diffuse Setting to adjust the number and placement of the "Color Zones."
  4. Use the Luminosity Setting to adjust the "Paint Brightnesses" of those Color Zones.
Keep checking the Sample Sphere to see the results of your settings.

Diffuse Settings for the Color Zones (When The Ambient Lighting is Set to 0%):

Diffuse 0%1 Color Zone.
Diffuse 00.1%-40%2 Color Zones.
Diffuse 40.1%-90%3 Color Zones (width of brightest zones will vary according to the Diffuse setting.
Diffuse 90.1%-up4 Color Zones (width of brightest zones will vary according to the Diffuse setting.

Here are some samples of what you can do with the original Cel Shader:

Angel White 1

RGB 200 255 255
Luminosity is set to 100%
Diffuse is set to 100%
(There are 4 Color Zones here--it's just that the brightest 3 Zones appear to be white, due to the high Luminosity)
(Because the Luminosity is 100%, the least bright Zone is set to the surface's base color of RGB 200 255 255).

Angel Orange 1

RGB 255 150 0
Luminosity is set to 100%
Diffuse is set to 40%

For folks who prefer the look of high-budget palettes, here's some more samples:

Angel Orange 2

RGB 255 150 0
Luminosity is set to 100%
Diffuse is set to 50%
(Although any Diffuse setting between 40.1% and 90% will give you three Color Zones, 50% gives me the "highlight paint" effect that I want. More on that in the following image).

Angel Orange 3

RGB 255 150 0
Luminosity is set to 100%
Diffuse is set to 75%
(Increasing the Diffuse setting increases the size of that "highlight" paint).

Angel Yellow 1

RGB 255 190 0
Luminosity is set to 100%
Diffuse is set to 100%

This gives you a more "cartoony" celshaded yellow than Cel Shader applied to "real" yellow. Compare:

Angel Yellow 1 Angel Yellow 2

The wing on the right has a surface color of RGB 255 240 0 and a Luminosity setting of 60%.

That's pretty much all I know about the original Cel Shader. Experiment with different RGB colors, Luminosity, and Diffuse settings to get the look that you want. :-)

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