Merge pull request #15525 from maccesch/dev

CubeCamera:  restore previously set render target

src/cameras/CubeCamera.js

@@ -58,6 +58,8 @@ function CubeCamera( near, far, cubeResolution, options ) {
 
 		if ( this.parent === null ) this.updateMatrixWorld();
 
+		var currentRenderTarget = renderer.getRenderTarget();
+
 		var renderTarget = this.renderTarget;
 		var generateMipmaps = renderTarget.texture.generateMipmaps;
 
@@ -83,12 +85,14 @@ function CubeCamera( near, far, cubeResolution, options ) {
 		renderTarget.activeCubeFace = 5;
 		renderer.render( scene, cameraNZ, renderTarget );
 
-		renderer.setRenderTarget( null );
+		renderer.setRenderTarget( currentRenderTarget );
 
 	};
 
 	this.clear = function ( renderer, color, depth, stencil ) {
 
+		var currentRenderTarget = renderer.getRenderTarget();
+
 		var renderTarget = this.renderTarget;
 
 		for ( var i = 0; i < 6; i ++ ) {
@@ -100,7 +104,7 @@ function CubeCamera( near, far, cubeResolution, options ) {
 
 		}
 
-		renderer.setRenderTarget( null );
+		renderer.setRenderTarget( currentRenderTarget );
 
 	};