From 1638d797eb53ee1a414e04b37b5681a028955df5 Mon Sep 17 00:00:00 2001
From: Marco Weber <marco-we@hotmail.com>
Date: Thu, 12 Nov 2015 12:20:02 +0000
Subject: [PATCH] Added invalidation of renderpipeline state cache. In case the
 program object gets re-used the cache can return invalid instances of the
 descriptor.

---
 src/renderer_mtl.mm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/renderer_mtl.mm b/src/renderer_mtl.mm
index 71a84741..60864141 100644
--- a/src/renderer_mtl.mm
+++ b/src/renderer_mtl.mm
@@ -1453,6 +1453,8 @@ namespace bgfx { namespace mtl
 
 		m_processedUniforms = false;
 		m_numPredefined = 0;
+
+		m_renderPipelineStateCache.invalidate();
 	}
 
 	UniformType::Enum convertMtlType(MTLDataType _type)