Rewrite

shader/pick.lua

@@ -0,0 +1,21 @@
+return [[
+
+# ifdef VERTEX
+uniform mat4 scene_transform; // world -> view transform
+uniform mat4 model_transform; // model -> world transform
+
+vec4 position(mat4 love_transform, vec4 vertex_position) {
+	return scene_transform * model_transform * vertex_position;
+}
+# endif
+
+# ifdef PIXEL
+uniform vec3 pick_color;
+
+vec4 effect(vec4 color, sampler2D texture, vec2 texture_coords, vec2 screen_coords) {
+	if (texture2D(texture, texture_coords).a < 0.1) discard;
+	return vec4(pick_color, 1);
+}
+# endif
+
+]]