import type { RawTexture } from "../Textures/rawTexture";
import type { Vector2 } from "../../Maths/math.vector";
import type { Nullable } from "../../types";
import type { Color3 } from "../../Maths/math.color";
/**
 * Interface which defines the available methods for a GreasedLineMaterial
 */
export interface IGreasedLineMaterial {
    /**
     * Normalized value of how much of the line will be visible
     * 0 - 0% of the line will be visible
     * 1 - 100% of the line will be visible
     */
    visibility: number;
    /**
     * Line base width. At each point the line width is calculated by widths[pointIndex] * width
     */
    width: number;
    /**
     * Turns on/off dash mode
     */
    useDash: boolean;
    /**
     * @see GreasedLinePluginMaterial.setDashCount
     * Number of dashes in the line.
     * Defaults to 1.
     */
    dashCount: number;
    /**
     * Dash offset
     */
    dashOffset: number;
    /**
     * Length of the dash. 0 to 1. 0.5 means half empty, half drawn.
     */
    dashRatio: number;
    /**
     * Whether to use the colors option to colorize the line
     */
    useColors: boolean;
    /**
     * The mixing mode of the color paramater. Default value is GreasedLineMeshColorMode.SET.
     * MATERIAL_TYPE_SIMPLE mixes the color and colors of the greased line material.
     * MATERIAL_TYPE_STANDARD and MATERIAL_TYPE_PBR mixes the color from the base material with the color and/or colors of the greased line material.
     * @see GreasedLineMeshColorMode
     */
    colorMode: GreasedLineMeshColorMode;
    /**
     * Colors of the line segments.
     * Defaults to empty.
     */
    colors: Nullable<Color3[]>;
    /**
     * If false then width units = scene units. If true then line will width be reduced.
     * Defaults to false.
     */
    sizeAttenuation: boolean;
    /**
     * Color of the line. Applies to all line segments.
     * Defaults to White.
     */
    color: Nullable<Color3>;
    /**
     * The method used to distribute the colors along the line.
     * You can use segment distribution when each segment will use on color from the color table.
     * Or you can use line distribution when the colors are distributed evenly along the line ignoring the segments.
     */
    colorsDistributionType: GreasedLineMeshColorDistributionType;
    /**
     * Defaults to engine.getRenderWidth() and engine.getRenderHeight()
     * Rendering resolution
     */
    resolution: Vector2;
    /**
     * You can provide a colorsTexture to use instead of one generated from the 'colors' option
     */
    colorsTexture: Nullable<RawTexture>;
    /**
     * Allows to change the color without marking the material dirty.
     * MATERIAL_TYPE_STANDARD and MATERIAL_TYPE_PBR material's shaders will get recompiled if there was no color set and you set a color or when there was a color set and you set it to null.
     * @param value the color
     * @param doNotMarkDirty the flag
     */
    setColor(value: Nullable<Color3>, doNotMarkDirty?: boolean): void;
    /**
     * Set the colors
     * @param colors colors array
     * @param lazy if true the colors texture will not be updated
     * @param forceNewTexture forces to create a new colors texture
     */
    setColors(colors: Nullable<Color3[]>, lazy: boolean, forceNewTexture?: boolean): void;
    /**
     * Creates and sets the colors texture from the colors array which was created in lazy mode
     */
    updateLazy(): void;
}
/**
 * Material types for GreasedLine
 * {@link https://doc.babylonjs.com/features/featuresDeepDive/mesh/creation/param/greased_line#materialtype}
 */
export declare enum GreasedLineMeshMaterialType {
    /**
     * StandardMaterial
     */
    MATERIAL_TYPE_STANDARD = 0,
    /**
     * PBR Material
     */
    MATERIAL_TYPE_PBR = 1,
    /**
     * Simple and fast shader material not supporting lightning nor textures
     */
    MATERIAL_TYPE_SIMPLE = 2
}
/**
 * Color blending mode of the @see GreasedLineMaterial and the base material
 * {@link https://doc.babylonjs.com/features/featuresDeepDive/mesh/creation/param/greased_line#colormode}
 */
export declare enum GreasedLineMeshColorMode {
    /**
     * Color blending mode SET
     */
    COLOR_MODE_SET = 0,
    /**
     * Color blending mode ADD
     */
    COLOR_MODE_ADD = 1,
    /**
     * Color blending mode ADD
     */
    COLOR_MODE_MULTIPLY = 2
}
/**
 * Color distribution type of the @see colors.
 * {@link https://doc.babylonjs.com/features/featuresDeepDive/mesh/creation/param/greased_line#colordistributiontype}
 *
 */
export declare enum GreasedLineMeshColorDistributionType {
    /**
     * Colors distributed between segments of the line
     */
    COLOR_DISTRIBUTION_TYPE_SEGMENT = 0,
    /**
     * Colors distributed along the line ingoring the segments
     */
    COLOR_DISTRIBUTION_TYPE_LINE = 1
}
/**
 * Options for GreasedLineMaterial
 */
export interface GreasedLineMaterialOptions {
    /**
     * Line width. If sizeAttenuation os false scene units will be used for width.
     * Defaults to 0.1 if @see sizeAttenuation is false, or to 1 if it's true.
     */
    width?: number;
    /**
     * If false then width units = scene units. If true then line will width be reduced.
     * Defaults to false.
     */
    sizeAttenuation?: boolean;
    /**
     * Type of the material to use to render the line.
     * Defaults to StandardMaterial.
     */
    materialType?: GreasedLineMeshMaterialType;
    /**
     * Color of the line. Applies to all line segments.
     * Defaults to White.
     */
    color?: Color3;
    /**
     * Color mode of the line. Applies to all line segments.
     * The pixel color from the material shader will be modified with the value of @see color using the colorMode.
     * Defaults to @see GreasedLineMeshColorMode.SET
     */
    colorMode?: GreasedLineMeshColorMode;
    /**
     * Colors of the line segments.
     * Defaults to empty.
     */
    colors?: Color3[];
    /**
     * If true, @see colors are used, otherwise they're ignored.
     * Defaults to false.
     */
    useColors?: boolean;
    /**
     * Sampling type of the colors texture
     * Defaults to NEAREST_NEAREST.
     */
    colorsSampling?: number;
    /**
     * The method used to distribute the colors along the line.
     * You can use segment distribution when each segment will use on color from the color table.
     * Or you can use line distribution when the colors are distributed evenly along the line ignoring the segments.
     */
    colorDistributionType?: GreasedLineMeshColorDistributionType;
    /**
     * If true, dashing is used.
     * Defaults to false.
     */
    useDash?: boolean;
    /**
     * @see GreasedLinePluginMaterial.setDashCount
     * Number of dashes in the line.
     * Defaults to 1.
     */
    dashCount?: number;
    /**
     * Offset of the dashes along the line. 0 to 1.
     * Defaults to 0.
     * @see GreasedLinePluginMaterial.setDashOffset
     */
    dashOffset?: number;
    /**
     * Length of the dash. 0 to 1. 0.5 means half empty, half drawn.
     * Defaults to 0.5.
     * @see GreasedLinePluginMaterial.setDashRatio
     */
    dashRatio?: number;
    /**
     * Sets the line length visibility.
     * 0 - 0% of the line will be visible.
     * 1 - 100% of the line will be visible.
     * @see GreasedLinePluginMaterial.setVisibility
     */
    visibility?: number;
    /**
     * Defaults to engine.getRenderWidth() and engine.getRenderHeight()
     * Rendering resolution
     */
    resolution?: Vector2;
    /**
     * Whether to use camera facing for the line.
     * Defaults to true.
     */
    cameraFacing?: boolean;
    /**
     * You can provide a colorsTexture to use instead of one generated from the 'colors' option
     */
    colorsTexture?: RawTexture;
}