commit ddc7aa104534538f575eaa756f26bd5520738c9f Author: Daniel Bulant Date: Wed Nov 26 18:13:02 2025 +0100 first commit diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 0000000..f28239b --- /dev/null +++ b/.editorconfig @@ -0,0 +1,4 @@ +root = true + +[*] +charset = utf-8 diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 0000000..8ad74f7 --- /dev/null +++ b/.gitattributes @@ -0,0 +1,2 @@ +# Normalize EOL for all files that Git considers text files. +* text=auto eol=lf diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..0af181c --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +# Godot 4+ specific ignores +.godot/ +/android/ diff --git a/icon.svg b/icon.svg new file mode 100644 index 0000000..c6bbb7d --- /dev/null +++ b/icon.svg @@ -0,0 +1 @@ + diff --git a/icon.svg.import b/icon.svg.import new file mode 100644 index 0000000..32d0e49 --- /dev/null +++ b/icon.svg.import @@ -0,0 +1,43 @@ +[remap] + +importer="texture" +type="CompressedTexture2D" +uid="uid://dj13im0k1ydwf" +path="res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex" +metadata={ +"vram_texture": false +} + +[deps] + +source_file="res://icon.svg" +dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"] + +[params] + +compress/mode=0 +compress/high_quality=false +compress/lossy_quality=0.7 +compress/uastc_level=0 +compress/rdo_quality_loss=0.0 +compress/hdr_compression=1 +compress/normal_map=0 +compress/channel_pack=0 +mipmaps/generate=false +mipmaps/limit=-1 +roughness/mode=0 +roughness/src_normal="" +process/channel_remap/red=0 +process/channel_remap/green=1 +process/channel_remap/blue=2 +process/channel_remap/alpha=3 +process/fix_alpha_border=true +process/premult_alpha=false +process/normal_map_invert_y=false +process/hdr_as_srgb=false +process/hdr_clamp_exposure=false +process/size_limit=0 +detect_3d/compress_to=1 +svg/scale=1.0 +editor/scale_with_editor_scale=false +editor/convert_colors_with_editor_theme=false diff --git a/light.tscn b/light.tscn new file mode 100644 index 0000000..afd1189 --- /dev/null +++ b/light.tscn @@ -0,0 +1,9 @@ +[gd_scene format=3 uid="uid://b6opad48icrl8"] + +[node name="SpotLight3D" type="SpotLight3D"] +transform = Transform3D(1, 0, 0, 0, -4.3711385e-08, 0.99999994, 0, -0.99999994, -4.3711385e-08, 0, 0, 0) +light_size = 0.3 +spot_range = 0.8 +spot_attenuation = 0.0 +spot_angle = 70.0 +spot_angle_attenuation = 3.2490098 diff --git a/lights.gd b/lights.gd new file mode 100644 index 0000000..bec7596 --- /dev/null +++ b/lights.gd @@ -0,0 +1,39 @@ +extends Marker3D +class_name Lights + +@export var light_count: int = 1 +@export var light_radius: float = 5.0 +@export var light_template: PackedScene +@export var pattern_repetition: int = 5 + +@export var light_color: Color = Color.WHITE +@export var light_intensity: float = 1.0 +@export var expected_rotation_delta: float = 0. + +func _ready() -> void: + for i in light_count: + var angle = (TAU / light_count) * i + var x = light_radius * cos(angle) + var z = light_radius * sin(angle) + var light_instance = light_template.instantiate() + light_instance.position = Vector3(x, 0, z) + add_child(light_instance) + +const BASE_DELTA: float = 16 + +var virtual_rotation: float = 0.0 + +const FULL_DARK_ROTATION_DELTA := .1 + +func _process(delta: float) -> void: + var frames_elapsed = delta / BASE_DELTA + virtual_rotation += expected_rotation_delta + var max_darkness = expected_rotation_delta / FULL_DARK_ROTATION_DELTA + var i := 0 + for light in get_children(): + if light is SpotLight3D: + var pattern_offset := ((i + int(virtual_rotation * pattern_repetition)) % pattern_repetition) / float(pattern_repetition) + light.light_color = light_color + light.light_energy = 1 - (1 - pattern_offset) * max_darkness + i += 1 + expected_rotation_delta = lerp(expected_rotation_delta, 0.0, frames_elapsed * 5) \ No newline at end of file diff --git a/lights.gd.uid b/lights.gd.uid new file mode 100644 index 0000000..d4442f8 --- /dev/null +++ b/lights.gd.uid @@ -0,0 +1 @@ +uid://cjmoj5kmiquip diff --git a/main.gd b/main.gd new file mode 100644 index 0000000..e6c8c97 --- /dev/null +++ b/main.gd @@ -0,0 +1,36 @@ +extends Node3D + +@onready var lights: Lights = %Lights +@onready var slider: HSlider = %HSlider +@onready var plane: MeshInstance3D = %Plane + +@export var light_rotation: float = 0.0 +@export var color_gradient: Gradient + +func _ready(): + slider.value_changed.connect(set_light_rotation) + +var error_correction := 0. + +func set_light_rotation(value: float) -> void: + value = wrapf(value, 0, 1) + + # get shortest diff including wrapping + var diff = light_rotation - value + var wrapped_diff = (value + 1) - light_rotation + if abs(wrapped_diff) < abs(diff): + diff = -wrapped_diff + wrapped_diff = (light_rotation + 1) - value + if abs(wrapped_diff) < abs(diff): + diff = wrapped_diff + + # ignore small movements until a bigger one occurs or until they accumulate enough, to avoid reseting the light movement + # diff += error_correction + # if diff < .05: + # error_correction = diff + # return + + lights.expected_rotation_delta = diff + light_rotation = value + lights.light_color = color_gradient.sample(value) + slider.value = value diff --git a/main.gd.uid b/main.gd.uid new file mode 100644 index 0000000..3b02429 --- /dev/null +++ b/main.gd.uid @@ -0,0 +1 @@ +uid://yxfetvyqh2t3 diff --git a/main.tscn b/main.tscn new file mode 100644 index 0000000..ae89cd0 --- /dev/null +++ b/main.tscn @@ -0,0 +1,65 @@ +[gd_scene load_steps=10 format=3 uid="uid://bfysabo18nycq"] + +[ext_resource type="Script" uid="uid://yxfetvyqh2t3" path="res://main.gd" id="1_h2yge"] +[ext_resource type="Script" uid="uid://cjmoj5kmiquip" path="res://lights.gd" id="1_ig7tw"] +[ext_resource type="PackedScene" uid="uid://b6opad48icrl8" path="res://light.tscn" id="2_0xm2m"] + +[sub_resource type="Gradient" id="Gradient_h2yge"] +offsets = PackedFloat32Array(0, 0.25, 0.5, 0.75, 1) +colors = PackedColorArray(0.8156863, 0.38431373, 1, 1, 5.1018596e-06, 0.6902809, 0.5935051, 1, 0.31225172, 0.8011136, 0, 1, 0.5515474, 0.79056466, 1, 1, 0.8171765, 0.38458148, 1, 1) + +[sub_resource type="CylinderMesh" id="CylinderMesh_0xm2m"] +top_radius = 1.0 +bottom_radius = 1.0 +height = 0.01 +cap_bottom = false + +[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_7dm0k"] + +[sub_resource type="ProceduralSkyMaterial" id="ProceduralSkyMaterial_7dm0k"] + +[sub_resource type="Sky" id="Sky_ig7tw"] +sky_material = SubResource("ProceduralSkyMaterial_7dm0k") + +[sub_resource type="Environment" id="Environment_0xm2m"] +background_mode = 2 +sky = SubResource("Sky_ig7tw") + +[node name="Node3D" type="Node3D"] +script = ExtResource("1_h2yge") +color_gradient = SubResource("Gradient_h2yge") + +[node name="Plane" type="MeshInstance3D" parent="."] +unique_name_in_owner = true +mesh = SubResource("CylinderMesh_0xm2m") +surface_material_override/0 = SubResource("StandardMaterial3D_7dm0k") + +[node name="WorldEnvironment" type="WorldEnvironment" parent="."] +environment = SubResource("Environment_0xm2m") + +[node name="Camera3D" type="Camera3D" parent="."] +transform = Transform3D(1, 0, 0, 0, -4.371139e-08, 1, 0, -1, -4.371139e-08, 0, 2, 0) + +[node name="Lights" type="Marker3D" parent="."] +unique_name_in_owner = true +transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.5, 0) +gizmo_extents = 0.7 +script = ExtResource("1_ig7tw") +light_count = 20 +light_radius = 0.7 +light_template = ExtResource("2_0xm2m") + +[node name="HSlider" type="HSlider" parent="."] +unique_name_in_owner = true +anchors_preset = 7 +anchor_left = 0.5 +anchor_top = 1.0 +anchor_right = 0.5 +anchor_bottom = 1.0 +offset_left = -150.0 +offset_top = -16.0 +offset_right = 150.0 +grow_horizontal = 2 +grow_vertical = 0 +max_value = 1.0 +step = 0.0 diff --git a/project.godot b/project.godot new file mode 100644 index 0000000..5c597b2 --- /dev/null +++ b/project.godot @@ -0,0 +1,16 @@ +; Engine configuration file. +; It's best edited using the editor UI and not directly, +; since the parameters that go here are not all obvious. +; +; Format: +; [section] ; section goes between [] +; param=value ; assign values to parameters + +config_version=5 + +[application] + +config/name="ambientlightdemo" +run/main_scene="uid://bfysabo18nycq" +config/features=PackedStringArray("4.5", "Forward Plus") +config/icon="res://icon.svg"