Create gles buffers with DYNAMIC_DRAW instead of STATIC_DRAW

gfx-rs · Jan 17, 2023 · 676db0a · 676db0a
1 parent 48fbb92
commit 676db0a
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/wgpu-hal/src/gles/device.rs b/wgpu-hal/src/gles/device.rs
@@ -499,7 +499,10 @@ impl crate::Device<super::Api> for super::Device {
                     glow::DYNAMIC_DRAW
                 }
             } else {
-                glow::STATIC_DRAW
+                // Even if the usage doesn't contain SRC_READ, we update it internally at least once
+                // Some vendors take usage very literally and STATIC_DRAW will freeze us with an empty buffer
+                // https://github.com/gfx-rs/wgpu/issues/3371
+                glow::DYNAMIC_DRAW
             };
             unsafe { gl.buffer_data_size(target, raw_size, usage) };
         }