Files
mtgodot-poc/project/mob_winding_test.gd
T

43 lines
1.6 KiB
GDScript

extends SceneTree
const MobView = preload("res://ui/mob_view.gd")
var failures := 0
func _init() -> void:
call_deferred("run")
func run() -> void:
for mode in ["0", "1"]:
OS.set_environment("MTGODOT_GPUSKIN", mode)
for race in [101, 110, 20001]:
var view := MobView.new()
if not view.build(AssetRoot.path(), null, race):
failures += 1
view.free()
continue
root.add_child(view)
view.anim.set_process(false)
view.anim.set_time(0.3)
var signed_area := 0.0
var total_area := 0.0
for instance in view.model.find_children("*", "MeshInstance3D", true, false):
for surface in instance.mesh.get_surface_count():
var arrays: Array = instance.mesh.surface_get_arrays(surface)
var vertices: PackedVector3Array = arrays[Mesh.ARRAY_VERTEX]
var normals: PackedVector3Array = arrays[Mesh.ARRAY_NORMAL]
var indices: PackedInt32Array = arrays[Mesh.ARRAY_INDEX]
for i in range(0, indices.size(), 3):
var a := indices[i]
var b := indices[i + 1]
var c := indices[i + 2]
var cross := (vertices[b] - vertices[a]).cross(vertices[c] - vertices[a])
signed_area += cross.dot((normals[a] + normals[b] + normals[c]).normalized())
total_area += cross.length()
var ratio := signed_area / maxf(total_area, 0.00001)
print("MOB winding race=%d GPU=%s normal_alignment=%f" % [race, mode, ratio])
# Godot's outward front face is clockwise; geometric cross is -normal.
if ratio >= -0.5:
failures += 1
printerr("FAIL: NPC/monster faces disagree with outward normals")
view.free()
await process_frame
print("mob_winding_test: failures=%d" % failures)
quit(1 if failures else 0)