Adjusting the background opacity of three.js to .5

I'm currently experimenting with changing the background of the canvas in three.js to have an opacity of 0.5. I know that I can achieve a completely transparent background using 

new THREE.WebGLRenderer( { alpha: true } );
. However, this is not the effect I'm going for. I want to be able to see through the render (canvas background) to view the body/html of the page beneath it, while still keeping the objects in the render with an opacity of 1.

Any suggestions on how to accomplish this? Thanks!

javascriptthree.jstransparency

Answer №1

If you want more control over how the background is rendered, one approach is to adjust the clear color and alpha value of the renderer. This can be done using the following code:

const renderer = new THREE.WebGLRenderer( { alpha: true } );
renderer.setClearColor( color );
renderer.setClearAlpha( 0.5 );

Check out this demo on jsfiddle

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