X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vs.130.vert;h=7d00f3cb87980bcd702572040cef208615aaeddb;hp=7b4ebab577156caa0819e929d06d67bede8d0e1b;hb=236a0ad8b604d5b3bff53f40b600991168f76800;hpb=28bc5f37437fa8eaca523a209c558b807ced2db3

diff --git a/vs.130.vert b/vs.130.vert
index 7b4ebab..7d00f3c 100644
--- a/vs.130.vert
+++ b/vs.130.vert
@@ -4,6 +4,10 @@ in vec2 position;
 in vec2 texcoord;
 out vec2 tc;
 
+// Will be overridden by compile_glsl_program() if needed.
+// (It cannot just be prepended, as #version must be before everything.)
+#define FLIP_ORIGIN 0
+
 void main()
 {
 	// The result of glOrtho(0.0, 1.0, 0.0, 1.0, 0.0, 1.0) is:
@@ -14,4 +18,7 @@ void main()
 	//   0.000  0.000  0.000  1.000
 	gl_Position = vec4(2.0 * position.x - 1.0, 2.0 * position.y - 1.0, -1.0, 1.0);
 	tc = texcoord;
+#if FLIP_ORIGIN
+	tc.y = 1.0f - tc.y;
+#endif
 }