Fixed testgl so that SDL_GL_Enter2DMode() allows alpha blending

libsdl-org · Nov 22, 2001 · 0f5e56a · 0f5e56a
1 parent 6da4475
commit 0f5e56a
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/test/testgl.c b/test/testgl.c
@@ -118,6 +118,10 @@ void SDL_GL_Enter2DMode()
 	glDisable(GL_CULL_FACE);
 	glEnable(GL_TEXTURE_2D);
 
+	/* This allows alpha blending of 2D textures with the scene */
+	glEnable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
 	glViewport(0, 0, screen->w, screen->h);
 
 	glMatrixMode(GL_PROJECTION);