From 7229a2a34e3651516e4c9baf51bc6379b3a43739 Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Fri, 23 Oct 2020 15:40:13 +0200
Subject: [PATCH] always clear on wine

---
 src/render_ogl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/render_ogl.c b/src/render_ogl.c
index 0e033d1..3fadb51 100644
--- a/src/render_ogl.c
+++ b/src/render_ogl.c
@@ -675,6 +675,10 @@ static void ogl_render()
                 if (glGetError() != GL_NO_ERROR)
                     g_ogl.use_opengl = FALSE;
             }
+            else if (g_ddraw->wine)
+            {
+                glClear(GL_COLOR_BUFFER_BIT);
+            }
 
             if (!g_ddraw->handlemouse)
             {