From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 9 Feb 2020 21:53:24 +0000 (+0200)
Subject: Don't call glVertexAttribDivisor if the extension is not available
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=746358b723bdb1ed71584d6fd28f783feb434aef

Don't call glVertexAttribDivisor if the extension is not available
---

diff --git a/source/vertexsetup.cpp b/source/vertexsetup.cpp
index 7cfc1b6d..19edfb39 100644
--- a/source/vertexsetup.cpp
+++ b/source/vertexsetup.cpp
@@ -126,7 +126,8 @@ void VertexSetup::update_vertex_array(const VertexArray &array, unsigned binding
 				glVertexAttribPointer(t, 4, GL_UNSIGNED_BYTE, true, stride, reinterpret_cast<unsigned char *>(offset));
 			else
 				glVertexAttribPointer(t, sz, GL_FLOAT, false, stride, reinterpret_cast<float *>(offset));
-			glVertexAttribDivisor(t, divisor);
+			if(ARB_instanced_arrays)
+				glVertexAttribDivisor(t, divisor);
 			glEnableVertexAttribArray(t);
 		}
 		offset += sz*sizeof(float);