From 77deae0483b705cfdae316348ad29eeb4badc9e5 Mon Sep 17 00:00:00 2001
From: David Snopek <dsnopek@gmail.com>
Date: Fri, 14 Apr 2023 17:39:44 -0500
Subject: [PATCH] Disable blending before blitting to framebuffer from WebXR

---
 modules/webxr/native/library_godot_webxr.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules/webxr/native/library_godot_webxr.js b/modules/webxr/native/library_godot_webxr.js
index c960b279710..55d5a304130 100644
--- a/modules/webxr/native/library_godot_webxr.js
+++ b/modules/webxr/native/library_godot_webxr.js
@@ -171,6 +171,11 @@ const GodotWebXR = {
 			gl.bindTexture(gl.TEXTURE_2D, texture);
 			gl.uniform1i(GodotWebXR.programInfo.uniformLocations.uSampler, 0);
 
+			const blend_enabled = gl.getParameter(gl.BLEND);
+			if (blend_enabled) {
+				gl.disable(gl.BLEND);
+			}
+
 			gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
 
 			// Restore state.
@@ -178,6 +183,9 @@ const GodotWebXR = {
 			gl.disableVertexAttribArray(GodotWebXR.programInfo.attribLocations.vertexPosition);
 			gl.bindBuffer(gl.ARRAY_BUFFER, null);
 			gl.useProgram(orig_program);
+			if (blend_enabled) {
+				gl.enable(gl.BLEND);
+			}
 		},
 
 		// Holds the controllers list between function calls.