Class PaletteFaceColorResolver

An IFaceColorResolver that maps shape faces onto the entries of a ColorPalette according to a FaceColoringMode. Shape builders call Resolve(int, int, Vector3) once per face when emitting their vertex color channel, so a single mesh can carry a distinct flat color per face.

Inheritance
object
PaletteFaceColorResolver
Implements
Inherited Members
Namespace: Scylla.Core.Util.Geom
Assembly: ScyllaCore.dll
Syntax
public sealed class PaletteFaceColorResolver : IFaceColorResolver
Remarks

The resolver is immutable and allocation-free per call, so a single instance can be reused across rebuilds. Construct it directly from a ColorPalette (for tests or code that already holds a palette) or let ScyllaShapeBase3D build it from a registry palette name.

GradientByY samples the palette by the face center's Y position normalized into the [minY, maxY] range supplied at construction. The other modes ignore the face center.

Constructors

PaletteFaceColorResolver(ColorPalette, FaceColoringMode, int, int, float, float)

Initializes a resolver over palette using the supplied mode.

Declaration
public PaletteFaceColorResolver(ColorPalette palette, FaceColoringMode mode, int seed = 0, int uniformIndex = 0, float minY = -0.5, float maxY = 0.5)
Parameters
Type Name Description
ColorPalette palette

The palette whose entries are assigned to faces. Must be non-null and non-empty.
FaceColoringMode mode

How faces map onto palette entries. None behaves like Uniform at index 0.
int seed

Seed for Hash. Ignored by other modes.
int uniformIndex

Palette index used by Uniform. Clamped to the palette range. Ignored by other modes.
float minY

Lower Y bound for GradientByY normalization. Ignored by other modes.
float maxY

Upper Y bound for GradientByY normalization. Ignored by other modes.

Methods

Resolve(int, int, Vector3)

Returns the color to assign to all vertices of the face identified by faceIndex.

Declaration
public Color32 Resolve(int faceIndex, int faceCount, Vector3 faceCenter)
Parameters
Type Name Description
int faceIndex

Zero-based face index within the shape's face inventory. The valid range is [0, faceCount) for the shape in question.
int faceCount

Total number of faces the shape will emit, useful for resolvers that need to know the upper bound (e.g. gradient sampling by index ratio).
Vector3 faceCenter

Local-space center of the face, useful for resolvers that derive color from spatial position (e.g. gradient sampled by Y, or 3D noise lookup).
Returns
Type Description
Color32

The color to assign to the face's vertices.

Implements

Extension Methods