From b79b8133c881942a42bb359f998bd8792c48c1bc Mon Sep 17 00:00:00 2001
From: robtfm <50659922+robtfm@users.noreply.github.com>
Date: Wed, 2 Jul 2025 21:06:27 +0100
Subject: [PATCH] fix skin uniform buffer size (#19888)

# Objective

for `BufferUsages::STORAGE` on webgpu (and maybe other contexts), buffer
sizes must be a multiple of 4. the skin uniform buffer starts at 16384
then increases by 1.5x, which eventually hits a number which isn't

## Solution

`.next_multiple_of(4)`
---
 crates/bevy_pbr/src/render/skin.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/bevy_pbr/src/render/skin.rs b/crates/bevy_pbr/src/render/skin.rs
index 476e06c1e7..f9ec672a66 100644
--- a/crates/bevy_pbr/src/render/skin.rs
+++ b/crates/bevy_pbr/src/render/skin.rs
@@ -220,7 +220,7 @@ pub fn prepare_skins(
         let mut new_size = uniform.current_buffer.size();
         while new_size < needed_size {
             // 1.5× growth factor.
-            new_size += new_size / 2;
+            new_size = (new_size + new_size / 2).next_multiple_of(4);
         }
 
         // Create the new buffers.