Accueil / npm / three@0.171.0 / src / renderers / common / Uniform.js
Uniform.js
import { Color } from '../../math/Color.js';
import { Matrix3 } from '../../math/Matrix3.js';
import { Matrix4 } from '../../math/Matrix4.js';
import { Vector2 } from '../../math/Vector2.js';
import { Vector3 } from '../../math/Vector3.js';
import { Vector4 } from '../../math/Vector4.js';
class Uniform {
constructor( name, value ) {
this.name = name;
this.value = value;
this.boundary = 0; // used to build the uniform buffer according to the STD140 layout
this.itemSize = 0;
this.offset = 0; // this property is set by WebGPUUniformsGroup and marks the start position in the uniform buffer
}
setValue( value ) {
this.value = value;
}
getValue() {
return this.value;
}
}
class NumberUniform extends Uniform {
constructor( name, value = 0 ) {
super( name, value );
this.isNumberUniform = true;
this.boundary = 4;
this.itemSize = 1;
}
}
class Vector2Uniform extends Uniform {
constructor( name, value = new Vector2() ) {
super( name, value );
this.isVector2Uniform = true;
this.boundary = 8;
this.itemSize = 2;
}
}
class Vector3Uniform extends Uniform {
constructor( name, value = new Vector3() ) {
super( name, value );
this.isVector3Uniform = true;
this.boundary = 16;
this.itemSize = 3;
}
}
class Vector4Uniform extends Uniform {
constructor( name, value = new Vector4() ) {
super( name, value );
this.isVector4Uniform = true;
this.boundary = 16;
this.itemSize = 4;
}
}
class ColorUniform extends Uniform {
constructor( name, value = new Color() ) {
super( name, value );
this.isColorUniform = true;
this.boundary = 16;
this.itemSize = 3;
}
}
class Matrix3Uniform extends Uniform {
constructor( name, value = new Matrix3() ) {
super( name, value );
this.isMatrix3Uniform = true;
this.boundary = 48;
this.itemSize = 12;
}
}
class Matrix4Uniform extends Uniform {
constructor( name, value = new Matrix4() ) {
super( name, value );
this.isMatrix4Uniform = true;
this.boundary = 64;
this.itemSize = 16;
}
}
export {
NumberUniform,
Vector2Uniform, Vector3Uniform, Vector4Uniform, ColorUniform,
Matrix3Uniform, Matrix4Uniform
};