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I have two scenes which I am rendering separately and overlaying, so have renderer.autoClear set to false. I am using renderer.clear() inside the rendering loop, and all is well:

// This works fine!
renderer.clear();
renderer.render( bgScene, bgCamera )
renderer.clearDepth();
renderer.render( scene, camera );

However, I have now added a cubecamera to the scene, to make a reflective object. Unfortunately, having renderer.autoClear set to false is causing issues, where the texture of the reflective object isn't clearing when the surroundings change, causing that typical "painting" effect:

// Causes "painting" effect
cubeCamera.updateCubeMap( renderer, scene );

Here is a simplified fiddle that replicates the issue. I haven't included the two scenes, to keep things simple. I am aware that this could actually be a bug in the library, in which case I'll post it up in the repo.

https://jsfiddle.net/pqoz74rf/4/

braX
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AlexKempton
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1 Answers1

1

Problem solved by the great WestLangley, over on github. Auto clear must be on when updating the cubemap but can be switched off again for other parts of the render.

renderer.autoClear = true;
cubeCamera.updateCubeMap( renderer, scene );

renderer.render( bgScene, bgCamera )
renderer.autoClear = false;

renderer.clearDepth();
renderer.render( scene, camera );

Updated fiddle: https://jsfiddle.net/pqoz74rf/6/

AlexKempton
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