Lights & Coloramp Configuration

1. Controlling Light & Shadow Direction

During character setup, a dedicated Light Direction_<Character> object is created in your scene collection.

1. Locate Light Direction_<Character> in the Outliner panel.
2. Open the Item Transform panel in Object Properties.
3. Adjust the Rotation values (XYZ Euler) to rotate the light vector:
   • Rotation Z: Rotates the sun angle horizontally around the character.
   • Rotation Y: Adjusts the horizontal tilt of the light across the character.
   • Rotation X: Adjusts the vertical pitch of the shadow line.

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2. Kythera Shader: Character Settings (Item Panel)

When using Kythera’s Shader, select your character and open the Item tab in the 3D Viewport sidebar (N key) to access real-time shader controls.

Lighting Modes & Presets

Choose from preset lighting environments or switch to Custom mode:

• Default: Standard game look.
• Sunrise: Soft morning light with pastel shadows.
• Day: Crisp daytime illumination.
• Sunset: Warm golden hour tones.
• Night: Dim moonlight palette.
• Rainy: Diffuse overcast lighting.
• Custom: Unlocks granular control over tints, shadows, and rim light.

Shading & Tints (Custom Mode)

When set to Custom, you can fine-tune:

• Ambient: Base ambient color tone.
• Lit Tint / Lit Brightness: Direct illumination color and brightness intensity.
• Shadow Tint / Shadow Intensity: Cel-shadow color tint and darkness depth.
• Fake SSS Intensity: Adjusts the soft Subsurface Scattering (SSS) falloff simulation across skin and fabric.

Rim Light Settings

Customize the edge highlight effect around your character:

• Enable Rim Light: Toggles the rim lighting effect.
• Color: Tint of the rim light glow.
• Coverage: How far the rim light extends across the mesh silhouettes.
• Brightness: Overall intensity of the rim light.
• Left / Right & Up / Down: Fine positional vectors to shift the highlight direction.

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3. Legacy Shader: 3D Viewport Control Rig

When using the Legacy Shader, a 3D control board is generated in your viewport as a separate rig object.

Note

Select the light panel rig, enter Pose Mode (Ctrl + Tab), and transform the color picker bones and sliders to adjust the Legacy shader’s ambient, sharp lit, sharp shadow, and rim parameters.