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2V2-e.4: render 40250 pack terrain with map lighting

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This commit is contained in:
shenlei
2026-09-23 21:19:14 +09:00
parent ac4c2aa4e0
commit cb43091f79
9 changed files with 226 additions and 24 deletions
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project/python_3d_surface.gd
+128 -19
View File
@@ -8,10 +8,8 @@
# at the origin with the fov/near/far read back from the projection. No axis conversion is involved.
# D3D's default front face (clockwise on screen, D3DCULL_CCW culls the rest) is also Godot's.
#
# PORT: until the map is ported, CMapManager has no environment data (LoadMap → SetEnvironmentData),
# so CPythonBackground::SetCharacterDirLight sets no light and D3DRS_AMBIENT stays 0: D3D would draw
# every lit mesh black. Such draws (lighting on, no light, no ambient, no emissive) are shown unshaded,
# texture only, and counted in unlit_stand_in_count. Delete this with the environment port.
# Terrain and lighting come from the same 40250 map pack as the actor textures. The map is placed
# in the recorded D3D camera's coordinate frame, and its .msenv supplies the character light.
extends Node3D
const UiAssets = preload("res://ui/ui_assets.gd")
@@ -26,14 +24,20 @@ const D3DBLEND_INVSRCALPHA := 6
var camera: Camera3D
var light: DirectionalLight3D
var environment: WorldEnvironment
var terrain: Node3D
var terrain_report := {}
var map_path := "metin2_map_a1"
var _atlas: Array = []
var _terrain_attempted := false
var _last_terrain_focus := Vector2(INF, INF)
var _ground_offset_cm := NAN
var _meshes: Array[MeshInstance3D] = []
# Materials keyed by texture and state, so an unchanged draw keeps its material from frame to frame.
var _materials := {}
# The draws the last update_frame() showed (for tests and reports).
var draw_count := 0
# How many of them used the no-environment stand-in (see the note at the top).
var unlit_stand_in_count := 0
var unlit_stand_in_count := 0 # Compatibility report field; real lighting keeps this at zero.
func _ready() -> void:
camera = Camera3D.new()
@@ -46,6 +50,7 @@ func _ready() -> void:
light = DirectionalLight3D.new()
light.name = "Light0"
light.visible = false
light.light_cull_mask = 1 << 1
add_child(light)
environment = WorldEnvironment.new()
environment.environment = Environment.new()
@@ -80,7 +85,6 @@ static func multiply(a: PackedFloat32Array, b: PackedFloat32Array) -> PackedFloa
func update_frame() -> void:
var draws: Array = Metin2PythonHost.render3d_draws()
var shown := 0
var stand_ins := 0
var camera_set := false
var light_set := false
for draw in draws:
@@ -95,11 +99,16 @@ func update_frame() -> void:
_apply_projection(proj)
camera_set = true
var view: PackedFloat32Array = draw["view"]
if terrain == null and not _terrain_attempted:
_load_terrain(draw)
if terrain != null:
_place_terrain(view)
if not light_set and draw["light0"]:
_apply_light(draw, view)
light_set = true
if _environment_missing(draw):
stand_ins += 1
elif not light_set and not terrain_report.is_empty():
_apply_map_light(view)
light_set = light.visible
var instance := _mesh_instance(shown)
instance.transform = d3d_transform(multiply(draw["world"], view))
instance.mesh = _build_mesh(draw)
@@ -111,7 +120,106 @@ func update_frame() -> void:
if not light_set:
light.visible = false
draw_count = shown
unlit_stand_in_count = stand_ins
unlit_stand_in_count = 0
func _load_terrain(draw: Dictionary) -> void:
if not ClassDB.class_exists("Metin2World"):
return
var camera_world := d3d_transform(draw["view"]).affine_inverse().origin
var focus := Vector2(camera_world.x, -camera_world.y)
if focus.distance_to(_last_terrain_focus) < 1000.0:
return
_last_terrain_focus = focus
map_path = _map_for_position(focus)
terrain = ClassDB.instantiate("Metin2World")
terrain.name = "PackTerrain"
terrain.set("auto_load", false)
terrain.set("assets_root", "pack://")
terrain.set("map_path", map_path)
terrain.set("load_radius_tiles", 1)
terrain.set("objects_enabled", false)
terrain.set("water_enabled", false)
terrain.call("set_collision_enabled", false)
# A skinned mesh's world matrix can be local to a bone. The inverse view
# locates the camera beside the actor and selects the correct 3x3 map tiles.
terrain.call("set_initial_focus_cm", focus)
add_child(terrain)
if not terrain.call("load_map"):
terrain_report = terrain.call("get_load_report")
push_error("40250 terrain failed: %s" % terrain_report.get("last_error", ""))
terrain.queue_free()
terrain = null
return
terrain_report = terrain.call("get_load_report")
if int(terrain_report.get("chunks_built", 0)) == 0:
# Loading's first frame can still contain the previous camera. Retry when
# __UpdateCamera moves to the main actor's map position.
terrain.queue_free()
terrain = null
terrain_report = {}
return
_terrain_attempted = true
_ground_offset_cm = NAN
# The map's own character light uses legacy Godot coordinates; the recorded game pass
# needs one light in camera space, derived from the same .msenv values below.
var map_character_light := terrain.get_node_or_null("CharacterLight") as DirectionalLight3D
if map_character_light:
map_character_light.visible = false
# WorldEnv from .msenv replaces the black environment created before map load.
if terrain_report.get("env_ok", false):
environment.environment = null
func _map_for_position(global_cm: Vector2) -> String:
if _atlas.is_empty():
for path in ["locale/en/AtlasInfo.txt", "AtlasInfo.txt", "root/atlasinfo.txt"]:
var bytes: PackedByteArray = Metin2Pack.get_bytes(path)
if bytes.is_empty():
continue
for line in bytes.get_string_from_utf8().split("\n"):
var fields := line.strip_edges().replace("\t", " ").split(" ", false)
if fields.size() < 5:
continue
_atlas.append({"name": fields[0].to_lower(), "base": Vector2(float(fields[1]), float(fields[2])),
"size": Vector2(float(fields[3]), float(fields[4])) * 25600.0})
break
for entry in _atlas:
var local: Vector2 = global_cm - entry["base"]
if local.x >= 0.0 and local.y >= 0.0 and local.x < entry["size"].x \
and local.y < entry["size"].y and Metin2Pack.exists(entry["name"] + "/setting.txt"):
return entry["name"]
return map_path
func _place_terrain(view: PackedFloat32Array) -> void:
var base: Vector2 = terrain.call("get_map_base_cm")
var camera_world := d3d_transform(view).affine_inverse().origin
var local_x := (camera_world.x - base.x) / 100.0
var local_y := (-camera_world.y - base.y) / 100.0
terrain.call("set_focus_position", local_x, local_y)
# Until the native CMapManager::GetHeight path is ported, the actor enters at
# z=0. Align the map once to its actual sampled starting elevation.
if is_nan(_ground_offset_cm):
_ground_offset_cm = float(terrain.call("sample_height", local_x, local_y)) * 100.0
var from_map := Transform3D(Basis(Vector3(100, 0, 0), Vector3(0, 0, 100),
Vector3(0, -100, 0)), Vector3(base.x, -base.y, -_ground_offset_cm))
terrain.transform = d3d_transform(view) * from_map
func _apply_map_light(view: PackedFloat32Array) -> void:
if not terrain_report.get("env_ok", false) or not terrain_report.get("character_light_enabled", false):
light.visible = false
return
var direction: Vector3 = d3d_transform(view).basis * terrain_report["character_light_direction"]
if direction.length_squared() < 1e-8:
light.visible = false
return
light.visible = true
light.transform = Transform3D(Basis.looking_at(direction.normalized(),
Vector3.UP if absf(direction.normalized().y) < 0.99 else Vector3.RIGHT), Vector3.ZERO)
light.light_color = terrain_report["character_light_diffuse"]
light.light_energy = 1.0
var world_env := terrain.get_node_or_null("WorldEnv") as WorldEnvironment
if world_env and world_env.environment:
world_env.environment.ambient_light_source = Environment.AMBIENT_SOURCE_COLOR
world_env.environment.ambient_light_color = terrain_report["character_light_ambient"]
func _apply_projection(proj: PackedFloat32Array) -> void:
# D3DXMatrixPerspectiveFovRH: _22 = cot(fovy / 2), _33 = zf / (zn - zf), _43 = zn * zf / (zn - zf).
@@ -135,20 +243,21 @@ func _apply_light(draw: Dictionary, view: PackedFloat32Array) -> void:
# D3D lighting: ambient = D3DRS_AMBIENT + light ambient, both times the material ambient.
var ambient: Color = draw["ambient"]
var light_ambient: Color = draw["light0_ambient"]
environment.environment.ambient_light_color = Color(minf(ambient.r + light_ambient.r, 1.0),
minf(ambient.g + light_ambient.g, 1.0), minf(ambient.b + light_ambient.b, 1.0))
static func _environment_missing(draw: Dictionary) -> bool:
var ambient: Color = draw["ambient"]
var emissive: Color = draw["material_emissive"]
return draw["lighting"] and not draw["light0"] and ambient.r + ambient.g + ambient.b == 0.0 \
and emissive.r + emissive.g + emissive.b == 0.0
var active_environment: Environment = environment.environment
if terrain:
var map_environment := terrain.get_node_or_null("WorldEnv") as WorldEnvironment
if map_environment:
active_environment = map_environment.environment
if active_environment:
active_environment.ambient_light_color = Color(minf(ambient.r + light_ambient.r, 1.0),
minf(ambient.g + light_ambient.g, 1.0), minf(ambient.b + light_ambient.b, 1.0))
func _mesh_instance(index: int) -> MeshInstance3D:
while _meshes.size() <= index:
var instance := MeshInstance3D.new()
instance.name = "Draw%d" % _meshes.size()
instance.cast_shadow = GeometryInstance3D.SHADOW_CASTING_SETTING_OFF
instance.layers = 1 << 1
add_child(instance)
_meshes.append(instance)
return _meshes[index]
@@ -170,7 +279,7 @@ func _build_mesh(draw: Dictionary) -> ArrayMesh:
return mesh
func _material(draw: Dictionary) -> StandardMaterial3D:
var lit: bool = draw["lighting"] and not _environment_missing(draw)
var lit: bool = draw["lighting"]
# alpha_blend / alpha_test / lit are bools: %d needs them as ints.
var key := "%s|%d|%d|%d|%d|%d|%d|%d|%s|%s" % [draw["texture0"], int(draw["alpha_blend"]), draw["src_blend"],
draw["dest_blend"], int(draw["alpha_test"]), draw["alpha_ref"], draw["cull_mode"], int(lit),