1 files changed, 24 insertions, 0 deletions
diff --git a/source/blender/draw/modes/shaders/edit_normals_vert.glsl b/source/blender/draw/modes/shaders/edit_normals_vert.glsl
new file mode 100644
index 00000000000..3e00181c8dd
--- /dev/null
+++ b/source/blender/draw/modes/shaders/edit_normals_vert.glsl
@@ -0,0 +1,24 @@
+
+uniform mat4 ModelViewProjectionMatrix;
+uniform mat3 NormalMatrix;
+uniform mat4 ProjectionMatrix;
+uniform float normalSize;
+
+in vec3 pos;
+
+#ifdef FACE_NORMALS
+in vec4 norAndFlag;
+#define nor norAndFlag.xyz
+#else
+in vec3 nor;
+#endif
+
+flat out vec4 v1;
+flat out vec4 v2;
+
+void main()
+{
+	v1 = ModelViewProjectionMatrix * vec4(pos, 1.0);
+	vec3 n = normalize(NormalMatrix * nor); /* viewspace */
+	v2 = v1 + ProjectionMatrix * vec4(n * normalSize, 0.0);
+}