From 000a18e2cfa1744b513e19671de5e55f9ef4bcd9 Mon Sep 17 00:00:00 2001
From: faiface <faiface@ksp.sk>
Date: Thu, 9 Mar 2017 22:56:46 +0100
Subject: [PATCH] fix GLTriangles.SetLen when decreasing length

---
 pixelgl/gltriangles.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pixelgl/gltriangles.go b/pixelgl/gltriangles.go
index 2e4b8ae..6958e18 100644
--- a/pixelgl/gltriangles.go
+++ b/pixelgl/gltriangles.go
@@ -71,7 +71,7 @@ func (gt *GLTriangles) SetLen(len int) {
 		}
 	}
 	if len < gt.Len() {
-		gt.data = gt.data[:len]
+		gt.data = gt.data[:len*gt.vs.Stride()]
 	}
 }