From b6ff468aaf1ee16ea045addebd0b31a647dcb966 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Sun, 12 Aug 2018 10:55:24 +0300
Subject: [PATCH] - creation of dither texture no longer affects active unit

Red checkerboard was rendered upon startup instead of
* the first saved game's thumbnail
* the first game frame
---
 src/gl/renderer/gl_renderbuffers.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gl/renderer/gl_renderbuffers.cpp b/src/gl/renderer/gl_renderbuffers.cpp
index 094e6e30e9..48cbd0e754 100644
--- a/src/gl/renderer/gl_renderbuffers.cpp
+++ b/src/gl/renderer/gl_renderbuffers.cpp
@@ -576,6 +576,7 @@ void FGLRenderBuffers::BindDitherTexture(int texunit)
 			 .8515625, .6015625, .9765625, .7265625, .8671875, .6171875, .9921875, .7421875,
 		};
 
+		glActiveTexture(GL_TEXTURE0 + texunit);
 		mDitherTexture = Create2DTexture("DitherTexture", GL_R32F, 8, 8, data);
 	}
 	mDitherTexture.Bind(1, GL_NEAREST, GL_REPEAT);