update resources

resources/shaders/140/toolpaths_lines.vs

@@ -0,0 +1,16 @@
+#version 140
+
+in vec3 v_position;
+in vec3 v_normal;
+
+uniform mat4 view_model_matrix;
+uniform mat4 projection_matrix;
+uniform mat3 normal_matrix;
+
+out vec3 eye_normal;
+
+void main()
+{
+    gl_Position = projection_matrix * view_model_matrix * vec4(v_position, 1.0);
+    eye_normal = normal_matrix * v_normal;
+}