From 4c4332b848a347ea0827d7c2e6ca855805cc09bd Mon Sep 17 00:00:00 2001
From: Michael Barriault <mikebarriault@me.com>
Date: Mon, 15 Apr 2019 17:58:26 +0100
Subject: [PATCH] Fix zero local threadgroup size in indirect rendering.

---
 MoltenVK/MoltenVK/Commands/MVKCmdDraw.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MoltenVK/MoltenVK/Commands/MVKCmdDraw.mm b/MoltenVK/MoltenVK/Commands/MVKCmdDraw.mm
index 403e3714..83e5e004 100644
--- a/MoltenVK/MoltenVK/Commands/MVKCmdDraw.mm
+++ b/MoltenVK/MoltenVK/Commands/MVKCmdDraw.mm
@@ -601,7 +601,7 @@ void MVKCmdDrawIndirect::encode(MVKCommandEncoder* cmdEncoder) {
                                             sizeof(_drawCount),
                                             5);
                 [mtlTessCtlEncoder dispatchThreadgroups: MTLSizeMake(mvkCeilingDivide(_drawCount, mtlConvertState.threadExecutionWidth), 1, 1)
-                                  threadsPerThreadgroup: MTLSizeMake(mtlConvertState.threadExecutionWidth, 0, 0)];
+                                  threadsPerThreadgroup: MTLSizeMake(mtlConvertState.threadExecutionWidth, 1, 1)];
             }
 
             cmdEncoder->finalizeDrawState(stage);	// Ensure all updated state has been submitted to Metal