From b52c31666f3a247b7e5fc8b2af4ac448ddd77514 Mon Sep 17 00:00:00 2001
From: Renaud Rohlinger <renaud.rohlinger@gmail.com>
Date: Thu, 31 Mar 2022 17:38:50 +0900
Subject: [PATCH] WebGLMultipleRenderTargets fix copy method
 texture[i].isRenderTargetTexture and depthTexture.clone (#23781)

Fixed MRT copy method:

- texture[i] needed `isRenderTargetTexture = true`
- Aligned the copy method of the depthTexture with WebGLRenderTarget (see #23462)
---
 src/renderers/WebGLMultipleRenderTargets.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/renderers/WebGLMultipleRenderTargets.js b/src/renderers/WebGLMultipleRenderTargets.js
index a5fb5a176b53c8..a0bff130049bf0 100644
--- a/src/renderers/WebGLMultipleRenderTargets.js
+++ b/src/renderers/WebGLMultipleRenderTargets.js
@@ -59,13 +59,15 @@ class WebGLMultipleRenderTargets extends WebGLRenderTarget {
 
 		this.depthBuffer = source.depthBuffer;
 		this.stencilBuffer = source.stencilBuffer;
-		this.depthTexture = source.depthTexture;
+
+		if ( source.depthTexture !== null ) this.depthTexture = source.depthTexture.clone();
 
 		this.texture.length = 0;
 
 		for ( let i = 0, il = source.texture.length; i < il; i ++ ) {
 
 			this.texture[ i ] = source.texture[ i ].clone();
+			this.texture[ i ].isRenderTargetTexture = true;
 
 		}