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136 lines
2.0 KiB
136 lines
2.0 KiB
import { Color, Matrix3, Matrix4, Vector2, Vector3, Vector4 } from 'three';
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class WebGPUUniform {
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constructor( name, value = null ) {
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this.name = name;
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this.value = value;
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this.boundary = 0; // used to build the uniform buffer according to the STD140 layout
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this.itemSize = 0;
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this.offset = 0; // this property is set by WebGPUUniformsGroup and marks the start position in the uniform buffer
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}
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setValue( value ) {
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this.value = value;
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}
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getValue() {
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return this.value;
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}
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}
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class FloatUniform extends WebGPUUniform {
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constructor( name, value = 0 ) {
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super( name, value );
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this.isFloatUniform = true;
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this.boundary = 4;
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this.itemSize = 1;
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}
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}
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class Vector2Uniform extends WebGPUUniform {
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constructor( name, value = new Vector2() ) {
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super( name, value );
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this.isVector2Uniform = true;
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this.boundary = 8;
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this.itemSize = 2;
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}
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}
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class Vector3Uniform extends WebGPUUniform {
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constructor( name, value = new Vector3() ) {
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super( name, value );
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this.isVector3Uniform = true;
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this.boundary = 16;
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this.itemSize = 3;
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}
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}
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class Vector4Uniform extends WebGPUUniform {
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constructor( name, value = new Vector4() ) {
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super( name, value );
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this.isVector4Uniform = true;
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this.boundary = 16;
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this.itemSize = 4;
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}
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}
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class ColorUniform extends WebGPUUniform {
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constructor( name, value = new Color() ) {
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super( name, value );
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this.isColorUniform = true;
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this.boundary = 16;
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this.itemSize = 3;
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}
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}
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class Matrix3Uniform extends WebGPUUniform {
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constructor( name, value = new Matrix3() ) {
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super( name, value );
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this.isMatrix3Uniform = true;
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this.boundary = 48;
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this.itemSize = 12;
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}
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}
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class Matrix4Uniform extends WebGPUUniform {
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constructor( name, value = new Matrix4() ) {
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super( name, value );
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this.isMatrix4Uniform = true;
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this.boundary = 64;
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this.itemSize = 16;
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}
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}
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export { FloatUniform, Vector2Uniform, Vector3Uniform, Vector4Uniform, ColorUniform, Matrix3Uniform, Matrix4Uniform };
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