aibrashandClaude Sonnet 5.5
d759cf6a54
- Деревья: упрощённая модель, MultiMesh, коллизия стволов - Птицы кружат вокруг Tower_01 (шейдерные крылья, свечение) - Обелиск увеличен, поднят и плавно левитирует Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
117 lines
4.1 KiB
GDScript
117 lines
4.1 KiB
GDScript
@tool
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extends Node3D
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# Киберпанк-птицы кружат вокруг цели. Один MultiMesh, взмахи крыльев считает шейдер.
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@export var target_path: NodePath
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var target: Node3D
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@export var count := 12
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@export var min_radius := 55.0
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@export var max_radius := 100.0
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@export var min_height := 15.0
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@export var max_height := 150.0
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@export var speed_range := Vector2(0.15, 0.35) # рад/с вокруг цели
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@export var bird_scale := 1.6
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@export var seed_value := 7
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const SHADER := """
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shader_type spatial;
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render_mode cull_disabled, unshaded, fog_disabled;
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uniform float flap_speed = 9.0;
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uniform float flap_amp = 0.9;
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varying vec3 col;
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void vertex() {
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float ph = INSTANCE_CUSTOM.x;
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// COLOR.r — вес крыла (0 у тела, 1 на кончике)
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VERTEX.y += sin(TIME * flap_speed * (0.8 + INSTANCE_CUSTOM.y * 0.4) + ph) * flap_amp * COLOR.r;
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VERTEX.z += COLOR.r * 0.25 * cos(TIME * flap_speed + ph);
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col = INSTANCE_CUSTOM.z > 0.5 ? vec3(1.0, 0.1, 0.8) : vec3(0.0, 0.95, 1.0);
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}
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void fragment() {
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// Светлее к кончикам крыльев — HDR для свечения
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ALBEDO = col * (5.0 + 3.0 * COLOR.r);
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}
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"""
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var _mm: MultiMesh
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var _orbit: Array[Dictionary] = []
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func _ready() -> void:
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target = get_node_or_null(target_path) as Node3D
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_build()
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func _build() -> void:
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var rng := RandomNumberGenerator.new()
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rng.seed = seed_value
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var mat := ShaderMaterial.new()
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var sh := Shader.new()
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sh.code = SHADER
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mat.shader = sh
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_mm = MultiMesh.new()
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_mm.transform_format = MultiMesh.TRANSFORM_3D
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_mm.use_custom_data = true
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_mm.mesh = _make_mesh()
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_mm.mesh.surface_set_material(0, mat)
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_mm.instance_count = count
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for i in count:
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_orbit.append({
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"r": rng.randf_range(min_radius, max_radius),
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"h": rng.randf_range(min_height, max_height),
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"w": rng.randf_range(speed_range.x, speed_range.y) * (1.0 if rng.randf() > 0.3 else -1.0),
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"a": rng.randf() * TAU,
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"bob": rng.randf() * TAU,
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})
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_mm.set_instance_custom_data(i, Color(rng.randf() * TAU, rng.randf(), 1.0 if rng.randf() < 0.3 else 0.0, 0.0))
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var mmi := MultiMeshInstance3D.new()
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mmi.name = "Flock"
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mmi.multimesh = _mm
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mmi.cast_shadow = GeometryInstance3D.SHADOW_CASTING_SETTING_OFF
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mmi.custom_aabb = AABB(Vector3(-400, -50, -400), Vector3(800, 400, 800))
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mmi.top_level = true # координаты глобальные
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add_child(mmi)
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_update(0.0)
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# Угловатая птица: тело-ромб, хвост и два крыла-«клинка» (вес крыла в цвете вершины)
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func _make_mesh() -> ArrayMesh:
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var st := SurfaceTool.new()
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st.begin(Mesh.PRIMITIVE_TRIANGLES)
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var tris := [
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# [вершина, вес крыла]
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# тело (носом в -Z)
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[Vector3(0, 0, -1.2), 0.0], [Vector3(-0.25, 0, 0.3), 0.0], [Vector3(0.25, 0, 0.3), 0.0],
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[Vector3(0, 0.2, 0.0), 0.0], [Vector3(-0.25, 0, 0.3), 0.0], [Vector3(0, 0, -1.2), 0.0],
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[Vector3(0, 0.2, 0.0), 0.0], [Vector3(0, 0, -1.2), 0.0], [Vector3(0.25, 0, 0.3), 0.0],
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# хвост
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[Vector3(-0.2, 0, 0.3), 0.0], [Vector3(0, 0, 1.4), 0.0], [Vector3(0.2, 0, 0.3), 0.0],
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# левое крыло
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[Vector3(-0.2, 0, -0.5), 0.0], [Vector3(-2.6, 0, 0.5), 1.0], [Vector3(-0.2, 0, 0.4), 0.0],
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# правое крыло
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[Vector3(0.2, 0, -0.5), 0.0], [Vector3(0.2, 0, 0.4), 0.0], [Vector3(2.6, 0, 0.5), 1.0],
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]
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for t in tris:
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st.set_color(Color(t[1], 0, 0))
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st.add_vertex(t[0])
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return st.commit()
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func _process(delta: float) -> void:
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_update(delta)
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func _update(delta: float) -> void:
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if _mm == null or target == null:
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return
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var c := target.global_position
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var t := Time.get_ticks_msec() * 0.001
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for i in _orbit.size():
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var o: Dictionary = _orbit[i]
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o["a"] += o["w"] * delta
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var a: float = o["a"]
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var pos := c + Vector3(cos(a) * o["r"], o["h"] + sin(t * 0.7 + o["bob"]) * 3.0, sin(a) * o["r"])
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# Летим по касательной, лёгкий крен в сторону поворота
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var dir := Vector3(-sin(a), 0, cos(a)) * signf(o["w"])
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var b := Basis.looking_at(dir, Vector3.UP)
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b = b.rotated(dir, -0.35 * signf(o["w"])).scaled(Vector3.ONE * bird_scale)
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_mm.set_instance_transform(i, Transform3D(b, pos))
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