1 files changed, 31 insertions, 0 deletions
diff --git a/source/blender/draw/modes/shaders/edit_mesh_overlay_facedot_vert.glsl b/source/blender/draw/modes/shaders/edit_mesh_overlay_facedot_vert.glsl
new file mode 100644
index 00000000000..fa3934c4b77
--- /dev/null
+++ b/source/blender/draw/modes/shaders/edit_mesh_overlay_facedot_vert.glsl
@@ -0,0 +1,31 @@
+
+uniform mat4 ModelViewProjectionMatrix;
+
+in vec3 pos;
+in vec4 norAndFlag;
+
+flat out int isSelected;
+
+#ifdef VERTEX_FACING
+uniform mat4 ProjectionMatrix;
+uniform mat4 ModelViewMatrix;
+uniform mat3 NormalMatrix;
+
+flat out float facing;
+#endif
+
+void main()
+{
+	gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);
+	/* Bias Facedot Z position in clipspace. */
+	gl_Position.z -= 0.0002;
+	gl_PointSize = sizeFaceDot;
+	isSelected = int(norAndFlag.w);
+#ifdef VERTEX_FACING
+	vec3 view_normal = normalize(NormalMatrix * norAndFlag.xyz);
+	vec3 view_vec = (ProjectionMatrix[3][3] == 0.0)
+		? normalize((ModelViewMatrix * vec4(pos, 1.0)).xyz)
+		: vec3(0.0, 0.0, 1.0);
+	facing = dot(view_vec, view_normal);
+#endif
+}