Content Comparison

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In the uniforms section of the shader pass configuration, declare the variables to be used in the shader program:

this.shaderPass = new ShaderPass({
    uniforms: {
        "tDiffuse": { value: null },
        "tMask": { value: null },
        "tBackground": { value: null }
    },
    vertexShader: vertexShader,
    fragmentShader: fragmentShader
});

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You can dynamically update the values of the shader pass properties, such as tBackground and tMask, when necessary. For example, upon loading textures or changing the room in your application:

this.shaderPass.tBackground.value = bgTexture; 
this.shaderPass.tMask.value = maskTexture;

Adding Passes to EffectComposer Ensure the correct order of passes by adding them to the EffectComposer in sequence:

this.composer.addPass(renderPass); 
this.composer.addPass(this.fxaaPass); 
this.composer.addPass(this.shaderPass);

Rendering the Scene Launch the rendering process by calling the render method:

this.composer.render();

Bind the render method to the requestAnimationFrame event to continuously update the rendering.

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