⬅️ Back to Table of Contents

📄 LDrawConditionalLineMaterial.js

📊 Analysis Summary

Metric	Count
🔧 Functions	12
🧱 Classes	1
📦 Imports	4

📚 Table of Contents

• Imports
• Functions
• Classes

🛠️ File Location:

📂 examples/jsm/materials/LDrawConditionalLineMaterial.js

📦 Imports

Name	Source
Color	three
ShaderMaterial	three
UniformsLib	three
UniformsUtils	three

---

Functions

get(): any

Returns: any

Code

function () {

                    return this.uniforms.opacity.value;

                }

set(value: any): void

Parameters:

• value any

Returns: void

Code

function ( value ) {

                    this.uniforms.opacity.value = value;

                }

get(): any

Returns: any

Code

function () {

                    return this.uniforms.opacity.value;

                }

set(value: any): void

Parameters:

• value any

Returns: void

Code

function ( value ) {

                    this.uniforms.opacity.value = value;

                }

get(): any

Returns: any

Code

function () {

                    return this.uniforms.diffuse.value;

                }

get(): any

Returns: any

Code

function () {

                    return this.uniforms.diffuse.value;

                }

get(): any

Returns: any

Code

function () {

                    return this.uniforms.opacity.value;

                }

set(value: any): void

Parameters:

• value any

Returns: void

Code

function ( value ) {

                    this.uniforms.opacity.value = value;

                }

get(): any

Returns: any

Code

function () {

                    return this.uniforms.opacity.value;

                }

set(value: any): void

Parameters:

• value any

Returns: void

Code

function ( value ) {

                    this.uniforms.opacity.value = value;

                }

get(): any

Returns: any

Code

function () {

                    return this.uniforms.diffuse.value;

                }

get(): any

Returns: any

Code

function () {

                    return this.uniforms.diffuse.value;

                }

---

Classes

LDrawConditionalLineMaterial

Class Code

class LDrawConditionalLineMaterial extends ShaderMaterial {

    static get type() {

        return 'LDrawConditionalLineMaterial';

    }

    /**
     * Constructs a new conditional line material.
     *
     * @param {Object} [parameters] - An object with one or more properties
     * defining the material's appearance. Any property of the material
     * (including any property from inherited materials) can be passed
     * in here. Color values can be passed any type of value accepted
     * by {@link Color#set}.
     */
    constructor( parameters ) {

        super( {

            uniforms: UniformsUtils.merge( [
                UniformsLib.fog,
                {
                    diffuse: {
                        value: new Color()
                    },
                    opacity: {
                        value: 1.0
                    }
                }
            ] ),

            vertexShader: /* glsl */`
                attribute vec3 control0;
                attribute vec3 control1;
                attribute vec3 direction;
                varying float discardFlag;

                #include <common>
                #include <color_pars_vertex>
                #include <fog_pars_vertex>
                #include <logdepthbuf_pars_vertex>
                #include <clipping_planes_pars_vertex>
                void main() {
                    #include <color_vertex>

                    vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
                    gl_Position = projectionMatrix * mvPosition;

                    // Transform the line segment ends and control points into camera clip space
                    vec4 c0 = projectionMatrix * modelViewMatrix * vec4( control0, 1.0 );
                    vec4 c1 = projectionMatrix * modelViewMatrix * vec4( control1, 1.0 );
                    vec4 p0 = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
                    vec4 p1 = projectionMatrix * modelViewMatrix * vec4( position + direction, 1.0 );

                    c0.xy /= c0.w;
                    c1.xy /= c1.w;
                    p0.xy /= p0.w;
                    p1.xy /= p1.w;

                    // Get the direction of the segment and an orthogonal vector
                    vec2 dir = p1.xy - p0.xy;
                    vec2 norm = vec2( -dir.y, dir.x );

                    // Get control point directions from the line
                    vec2 c0dir = c0.xy - p1.xy;
                    vec2 c1dir = c1.xy - p1.xy;

                    // If the vectors to the controls points are pointed in different directions away
                    // from the line segment then the line should not be drawn.
                    float d0 = dot( normalize( norm ), normalize( c0dir ) );
                    float d1 = dot( normalize( norm ), normalize( c1dir ) );
                    discardFlag = float( sign( d0 ) != sign( d1 ) );

                    #include <logdepthbuf_vertex>
                    #include <clipping_planes_vertex>
                    #include <fog_vertex>
                }
            `,

            fragmentShader: /* glsl */`
            uniform vec3 diffuse;
            uniform float opacity;
            varying float discardFlag;

            #include <common>
            #include <color_pars_fragment>
            #include <fog_pars_fragment>
            #include <logdepthbuf_pars_fragment>
            #include <clipping_planes_pars_fragment>
            void main() {

                if ( discardFlag > 0.5 ) discard;

                #include <clipping_planes_fragment>
                vec3 outgoingLight = vec3( 0.0 );
                vec4 diffuseColor = vec4( diffuse, opacity );
                #include <logdepthbuf_fragment>
                #include <color_fragment>
                outgoingLight = diffuseColor.rgb; // simple shader
                gl_FragColor = vec4( outgoingLight, diffuseColor.a );
                #include <tonemapping_fragment>
                #include <colorspace_fragment>
                #include <fog_fragment>
                #include <premultiplied_alpha_fragment>
            }
            `,

        } );

        Object.defineProperties( this, {

            /**
             * The material's opacity.
             *
             * @name LDrawConditionalLineMaterial#opacity
             * @type {number}
             * @default 1
             */
            opacity: {
                get: function () {

                    return this.uniforms.opacity.value;

                },

                set: function ( value ) {

                    this.uniforms.opacity.value = value;

                }
            },

            /**
             * The material's color.
             *
             * @name LDrawConditionalLineMaterial#color
             * @type {Color}
             * @default (1,1,1)
             */
            color: {
                get: function () {

                    return this.uniforms.diffuse.value;

                }
            }

        } );

        this.setValues( parameters );

        /**
         * This flag can be used for type testing.
         *
         * @type {boolean}
         * @readonly
         * @default true
         */
        this.isLDrawConditionalLineMaterial = true;

    }

}

---