threepipe/lib/postprocessing/ExtendedCopyPass.js

A 3D viewer framework built on top of three.js in TypeScript with a focus on quality rendering, modularity and extensibility.

import { UniformsUtils } from 'three';
import { CopyShader } from 'three/examples/jsm/shaders/CopyShader.js';
import { getOrCall, glsl } from 'ts-browser-helpers';
import { ExtendedShaderPass } from './ExtendedShaderPass';
export class ExtendedCopyPass extends ExtendedShaderPass {
    constructor(snippet, respectColorSpace = true) {
        super({
            uniforms: UniformsUtils.clone(CopyShader.uniforms),
            vertexShader: CopyShader.vertexShader,
            fragmentShader: glsl `
                uniform float opacity;
                #include <alphatest_pars_fragment>
                varying vec2 vUv;
                void main() {
                    ${respectColorSpace ?
                'vec4 diffuseColor = tDiffuseTexelToLinear(texture2D(tDiffuse, vUv)) * opacity;' :
                'vec4 diffuseColor = texture2D(tDiffuse, vUv) * opacity;'}
                    #include <alphatest_fragment>
                    ${snippet ? getOrCall(snippet, 'diffuseColor') : ''}
                    #ifdef OPAQUE
                    diffuseColor.a = 1.0;
                    #endif
                    gl_FragColor = diffuseColor;
                    ${respectColorSpace ? '#include <encodings_fragment>' : ''}
                }
            `,
        }, 'tDiffuse');
    }
}
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