progs/trivial: add test for vertex program invarient transform
diff --git a/progs/trivial/SConscript b/progs/trivial/SConscript
index 03ccb14..9a1f357 100644
--- a/progs/trivial/SConscript
+++ b/progs/trivial/SConscript
@@ -143,6 +143,7 @@
 	'vp-clip',
 	'vp-line-clip',
 	'vp-tri',
+	'vp-tri-invariant',
 	'vp-tri-swap',
 	'vp-tri-tex',
 	'vp-tri-imm',