From 18b66b7d424dd30d1ba712bff22f96e79aab5525 Mon Sep 17 00:00:00 2001
From: Spiri0 <69024222+Spiri0@users.noreply.github.com>
Date: Mon, 9 Sep 2024 00:02:11 +0200
Subject: [PATCH] Extension of the WebGPU copyTextureToTexture function for
 array textures (#29364)

* Extension of the copyTextureToTexture function to also be able to use array textures

* Update WebGPUBackend.js

remove empty space
---
 src/renderers/webgpu/WebGPUBackend.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/renderers/webgpu/WebGPUBackend.js b/src/renderers/webgpu/WebGPUBackend.js
index 9576c5b7cb8623..7289ecee7fae1a 100644
--- a/src/renderers/webgpu/WebGPUBackend.js
+++ b/src/renderers/webgpu/WebGPUBackend.js
@@ -1365,9 +1365,11 @@ class WebGPUBackend extends Backend {
 
 		let dstX = 0;
 		let dstY = 0;
+		let dstLayer = 0;
 
 		let srcX = 0;
 		let srcY = 0;
+		let srcLayer = 0;
 
 		let srcWidth = srcTexture.image.width;
 		let srcHeight = srcTexture.image.height;
@@ -1376,6 +1378,7 @@ class WebGPUBackend extends Backend {
 
 			srcX = srcRegion.x;
 			srcY = srcRegion.y;
+			srcLayer = srcRegion.z || 0;
 			srcWidth = srcRegion.width;
 			srcHeight = srcRegion.height;
 
@@ -1385,6 +1388,7 @@ class WebGPUBackend extends Backend {
 
 			dstX = dstPosition.x;
 			dstY = dstPosition.y;
+			dstLayer = dstPosition.z || 0;
 
 		}
 
@@ -1397,16 +1401,17 @@ class WebGPUBackend extends Backend {
 			{
 				texture: sourceGPU,
 				mipLevel: level,
-				origin: { x: srcX, y: srcY, z: 0 }
+				origin: { x: srcX, y: srcY, z: srcLayer }
 			},
 			{
 				texture: destinationGPU,
 				mipLevel: level,
-				origin: { x: dstX, y: dstY, z: 0 }
+				origin: { x: dstX, y: dstY, z: dstLayer }
 			},
 			[
 				srcWidth,
-				srcHeight
+				srcHeight,
+				1
 			]
 		);