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add rain to materials

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This commit is contained in:
Overside srl
2026-03-31 19:33:17 +02:00
parent 222c3c88d3
commit b05abd395f
16 changed files with 218 additions and 106 deletions
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17
core/daynight/environment_manager.gd
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@@ -31,8 +31,8 @@ func _ready() -> void:
#set noise texture 2d to materials in special group
ApplyWindNoiseToMaterials()
#set snow shader to materials in special group
ApplySnowShaderToMaterials()
#set weather overlay (snow + rain) to materials in special group
ApplyWeatherShaderToMaterials()
if day_night_controller == null:
day_night_controller = DayNightController.new(
@@ -67,18 +67,17 @@ func ApplyWindNoiseToMaterials():
if node is GeometryInstance3D:
node.material_override.set_shader_parameter("wind_noise", noise_tex)
func ApplySnowShaderToMaterials():
var snow_shader = preload("res://core/daynight/snow_overlay.tres")
func ApplyWeatherShaderToMaterials():
var weather_shader = preload("res://core/daynight/weather_overlay.tres")
#apply to node and childs
for node in get_tree().get_nodes_in_group("snow_materials"):
for node in get_tree().get_nodes_in_group("weather_materials"):
if node is GeometryInstance3D:
node.material_overlay = snow_shader
node.material_overlay = weather_shader
else:
for child in node.get_children():
if child is GeometryInstance3D:
child.material_overlay = snow_shader
child.material_overlay = weather_shader
func select_day_time(normalized_time: float) -> void:
# 0.0→0.25 = alba: day_time 1.0→2.0 (night colors → morning colors)
# 0.25→0.5 = giorno: day_time 2.0→2.0 (stays morning/afternoon)

15
core/daynight/fogoverlay.gdshader
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@@ -1,15 +0,0 @@
shader_type canvas_item;
uniform vec4 fog_color : source_color = vec4(0.85, 0.9, 0.95, 1.0);
uniform float clear_center_radius : hint_range(0.0, 1.0) = 0.4;
uniform float edge_softness : hint_range(0.01, 1.0) = 0.5;
uniform float max_opacity : hint_range(0.0, 1.0) = 0.8;
void fragment() {
float dist_from_center = distance(SCREEN_UV, vec2(0.5));
float fog_amount = smoothstep(clear_center_radius, clear_center_radius + edge_softness, dist_from_center);
fog_amount *= max_opacity;
COLOR = vec4(fog_color.rgb, fog_color.a * fog_amount);
}

1
core/daynight/fogoverlay.gdshader.uid
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@@ -1 +0,0 @@
uid://b6l166fnyto24

51
core/daynight/snow.gdshader
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@@ -1,51 +0,0 @@
shader_type spatial;
render_mode blend_mix, depth_draw_never;
global uniform float global_snow_start_time = -1.0;
global uniform float global_snow_accumulation_speed = 0.1;
global uniform float global_snow_melt_time = -1.0;
global uniform float global_snow_melt_speed = 0.1;
global uniform float global_snow_threshold = 0.5;
global uniform vec4 global_snow_color = vec4(0.92, 0.96, 1.0, 1.0);
uniform sampler2D noise_texture : filter_linear_mipmap, repeat_enable;
uniform float noise_scale : hint_range(0.01, 1.0) = 0.15;
uniform float noise_edge_softness : hint_range(0.01, 0.5) = 0.2;
uniform float roughness_variation : hint_range(0.0, 0.3) = 0.15;
uniform float color_variation : hint_range(0.0, 0.15) = 0.05;
void fragment() {
float snow_amount = 0.0;
if (global_snow_start_time >= 0.0) {
snow_amount = clamp((TIME - global_snow_start_time) * global_snow_accumulation_speed, 0.0, 1.0);
}
if (global_snow_melt_time >= 0.0) {
float melt = clamp((TIME - global_snow_melt_time) * global_snow_melt_speed, 0.0, 1.0);
snow_amount = snow_amount * (1.0 - melt);
}
vec3 world_pos = (INV_VIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;
vec3 world_normal = (INV_VIEW_MATRIX * vec4(NORMAL, 0.0)).xyz;
float facing_up = clamp(world_normal.y, 0.0, 1.0);
float noise_val = texture(noise_texture, world_pos.xz * noise_scale).r;
float edge = smoothstep(
global_snow_threshold - noise_edge_softness,
global_snow_threshold + noise_edge_softness,
facing_up + (noise_val - 0.5) * 0.4
);
float coverage = smoothstep(0.0, 0.6, noise_val + snow_amount - 0.4);
float snow_factor = edge * coverage * snow_amount;
float shade = mix(-color_variation, color_variation, noise_val);
vec3 snow_albedo = clamp(global_snow_color.rgb + vec3(shade), 0.0, 1.0);
float snow_roughness = mix(0.15 - roughness_variation, 0.15 + roughness_variation, noise_val);
ALBEDO = snow_albedo;
ROUGHNESS = snow_roughness;
METALLIC = 0.0;
ALPHA = snow_factor;
}

1
core/daynight/snow.gdshader.uid
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@@ -1 +0,0 @@
uid://cjd72g8cgjear

11
core/daynight/snow_overlay.tres
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@@ -1,11 +0,0 @@
[gd_resource type="ShaderMaterial" format=3 uid="uid://bn4onuaqif5q3"]
[ext_resource type="Shader" uid="uid://cjd72g8cgjear" path="res://core/daynight/snow.gdshader" id="1_vwtmf"]
[resource]
render_priority = 0
shader = ExtResource("1_vwtmf")
shader_parameter/noise_scale = 0.15
shader_parameter/noise_edge_softness = 0.2
shader_parameter/roughness_variation = 0.15
shader_parameter/color_variation = 0.05

11
core/daynight/weather_controller.gd
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@@ -73,7 +73,7 @@ func _ready() -> void:
UIEvents.toggle_wind.connect(toggle_wind)
UIEvents.toggle_fireflies.connect(toggle_fireflies)
UIEvents.toggle_storm.connect(toggle_storm)
UIEvents.toggle_fog_overlay.connect(toggle_fog_overlay)
#UIEvents.toggle_fog_overlay.connect(toggle_fog_overlay)
UIEvents.toggle_dust.connect(toggle_dust)
UIEvents.toggle_blur.connect(toggle_blur)
UIEvents.toggle_shadows.connect(toggle_shadows)
@@ -94,9 +94,9 @@ func _process(delta: float) -> void:
var base_grad_intensity: float
var base_rotation_sun: Vector3
if is_storm:
if is_raining:
rain_intensity = move_toward(rain_intensity, 1.0, delta * 0.5)
if is_raining:
if is_storm:
timer_next_lightning -= delta
if timer_next_lightning <= 0.0:
start_lightning()
@@ -104,6 +104,8 @@ func _process(delta: float) -> void:
else:
rain_intensity = move_toward(rain_intensity, 0.0, delta * 0.5)
RenderingServer.global_shader_parameter_set("global_rain_intensity", rain_intensity)
if day_time <= 2.0:
var t = day_time - 1.0
base_tint = environment_config.morning_color.lerp(environment_config.afternoon_color, t)
@@ -509,9 +511,6 @@ func start_snow_melt() -> void:
#region Post-Process
func toggle_fog_overlay(value: bool) -> void:
pass
func toggle_dust(value: bool) -> void:
if environment_dust:
environment_dust.visible = value

141
core/daynight/weather_overlay.gdshader Normal file
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@@ -0,0 +1,141 @@
shader_type spatial;
render_mode blend_mix, depth_draw_never;
// --- Snow globals ---
global uniform float global_snow_start_time = -1.0;
global uniform float global_snow_accumulation_speed = 0.1;
global uniform float global_snow_melt_time = -1.0;
global uniform float global_snow_melt_speed = 0.1;
global uniform float global_snow_threshold = 0.5;
global uniform vec4 global_snow_color = vec4(0.92, 0.96, 1.0, 1.0);
// --- Rain globals ---
global uniform float global_rain_intensity;
// --- Shared ---
uniform sampler2D noise_texture : filter_linear_mipmap, repeat_enable;
// --- Snow params ---
uniform float snow_noise_scale : hint_range(0.01, 1.0) = 0.15;
uniform float snow_edge_softness : hint_range(0.01, 0.5) = 0.2;
uniform float snow_roughness_variation : hint_range(0.0, 0.3) = 0.15;
uniform float snow_color_variation : hint_range(0.0, 0.15) = 0.05;
// --- Rain params ---
uniform float ripple_scale : hint_range(0.1, 5.0) = 1.5;
uniform float ripple_speed : hint_range(0.5, 5.0) = 2.0;
uniform float ripple_layers : hint_range(1.0, 4.0) = 3.0;
uniform float streak_scale : hint_range(0.1, 5.0) = 2.0;
uniform float streak_speed : hint_range(0.1, 3.0) = 0.8;
uniform float wetness_darkening : hint_range(0.0, 0.5) = 0.25;
uniform float wet_roughness : hint_range(0.0, 0.3) = 0.05;
uniform float rain_normal_strength : hint_range(0.0, 1.0) = 0.4;
float ripple_ring(vec2 uv, float time_offset) {
float d = length(uv);
float ring = sin(d * 30.0 - TIME * ripple_speed + time_offset) * 0.5 + 0.5;
float fade = smoothstep(0.5, 0.0, d);
return ring * fade;
}
void fragment() {
vec3 world_pos = (INV_VIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;
vec3 world_normal = normalize((INV_VIEW_MATRIX * vec4(NORMAL, 0.0)).xyz);
float facing_up = clamp(world_normal.y, 0.0, 1.0);
float noise_val = texture(noise_texture, world_pos.xz * snow_noise_scale).r;
// ===================== SNOW =====================
float snow_amount = 0.0;
if (global_snow_start_time >= 0.0) {
snow_amount = clamp((TIME - global_snow_start_time) * global_snow_accumulation_speed, 0.0, 1.0);
}
if (global_snow_melt_time >= 0.0) {
float melt = clamp((TIME - global_snow_melt_time) * global_snow_melt_speed, 0.0, 1.0);
snow_amount *= (1.0 - melt);
}
float snow_edge = smoothstep(
global_snow_threshold - snow_edge_softness,
global_snow_threshold + snow_edge_softness,
facing_up + (noise_val - 0.5) * 0.4
);
float snow_coverage = smoothstep(0.0, 0.6, noise_val + snow_amount - 0.4);
float snow_factor = snow_edge * snow_coverage * snow_amount;
float shade = mix(-snow_color_variation, snow_color_variation, noise_val);
vec3 snow_albedo = clamp(global_snow_color.rgb + vec3(shade), 0.0, 1.0);
float snow_rough = mix(0.15 - snow_roughness_variation, 0.15 + snow_roughness_variation, noise_val);
// ===================== RAIN =====================
float rain_int = clamp(global_rain_intensity, 0.0, 1.0);
float rain_factor = 0.0;
vec3 rain_albedo = vec3(0.0);
float rain_rough = wet_roughness;
float rain_metallic = 0.0;
vec3 rain_normal = vec3(0.5, 0.5, 1.0);
if (rain_int > 0.01 && facing_up > 0.3) {
float surface_mask = smoothstep(0.3, 0.6, facing_up);
// Slope detection: 0 = flat, 1 = peak at ~30-45 degrees
float slope_angle = 1.0 - facing_up;
float slope_mask = smoothstep(0.1, 0.25, slope_angle) * smoothstep(0.75, 0.5, slope_angle);
// Ripples on horizontal surfaces
float ripple = 0.0;
for (float i = 0.0; i < ripple_layers; i += 1.0) {
float phase = i * 2.17;
vec2 cell_offset = vec2(
texture(noise_texture, world_pos.xz * ripple_scale * 0.3 + vec2(phase)).r,
texture(noise_texture, world_pos.xz * ripple_scale * 0.3 + vec2(0.0, phase)).r
);
vec2 ripple_uv = fract(world_pos.xz * ripple_scale + cell_offset) - 0.5;
ripple += ripple_ring(ripple_uv, phase * 3.7);
}
ripple /= ripple_layers;
// Flowing water on inclined surfaces (30-45 degrees)
vec3 down_dir = normalize(world_normal - vec3(0.0, 1.0, 0.0) * facing_up);
float flow_speed = streak_speed * (1.0 + slope_angle * 2.0);
// Main flow rivulets
float flow_coord = dot(world_pos, down_dir);
float lateral_coord = dot(world_pos.xz, vec2(-down_dir.z, down_dir.x)) * streak_scale;
vec2 flow_uv = vec2(lateral_coord, flow_coord * streak_scale - TIME * flow_speed);
float flow_noise = texture(noise_texture, flow_uv * 0.4).r;
float flow2 = texture(noise_texture, flow_uv * 0.7 + vec2(0.3, TIME * flow_speed * 0.3)).r;
float rivulets = smoothstep(0.3, 0.7, flow_noise) * smoothstep(0.25, 0.6, flow2);
// Accumulation at bottom (lower world_pos.y gets more water)
float height_factor = texture(noise_texture, world_pos.xz * 0.05).r;
float accumulation = smoothstep(0.6, 0.2, fract(world_pos.y * 0.3 + height_factor * 0.5));
rivulets = mix(rivulets, rivulets + accumulation * 0.3, slope_mask);
float streak = rivulets * slope_mask;
// Blend ripples (flat) and streaks (inclined)
float flat_weight = smoothstep(0.3, 0.15, slope_angle);
float effect = mix(streak, ripple, flat_weight) * rain_int * surface_mask;
float darkness = wetness_darkening * rain_int * surface_mask;
vec2 normal_offset = vec2(dFdx(effect), dFdy(effect)) * rain_normal_strength;
rain_normal = vec3(normal_offset.x + 0.5, normal_offset.y + 0.5, 1.0);
rain_albedo = vec3(0.02, 0.02, 0.03);
rain_metallic = 0.3 * rain_int;
rain_factor = effect * 0.8 + darkness;
}
// ===================== COMBINE =====================
if (snow_factor > rain_factor) {
ALBEDO = snow_albedo;
ROUGHNESS = snow_rough;
METALLIC = 0.0;
ALPHA = snow_factor;
} else {
ALBEDO = rain_albedo;
ROUGHNESS = rain_rough;
METALLIC = rain_metallic;
NORMAL_MAP = rain_normal;
ALPHA = rain_factor;
}
}

1
core/daynight/weather_overlay.gdshader.uid Normal file
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@@ -0,0 +1 @@
uid://dh3j2jp6defuk

21
core/daynight/weather_overlay.tres Normal file
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@@ -0,0 +1,21 @@
[gd_resource type="ShaderMaterial" format=3]
[ext_resource type="Shader" path="res://core/daynight/weather_overlay.gdshader" id="1_weather"]
[ext_resource type="NoiseTexture2D" uid="uid://bpswbjh4jj1ou" path="res://core/daynight/noise.tres" id="2_noise"]
[resource]
render_priority = 0
shader = ExtResource("1_weather")
shader_parameter/noise_texture = ExtResource("2_noise")
shader_parameter/snow_noise_scale = 0.15
shader_parameter/snow_edge_softness = 0.2
shader_parameter/snow_roughness_variation = 0.15
shader_parameter/snow_color_variation = 0.05
shader_parameter/ripple_scale = 1.5
shader_parameter/ripple_speed = 2.0
shader_parameter/ripple_layers = 3.0
shader_parameter/streak_scale = 2.0
shader_parameter/streak_speed = 0.8
shader_parameter/wetness_darkening = 0.25
shader_parameter/wet_roughness = 0.05
shader_parameter/rain_normal_strength = 0.4

6
core/environment_config.gd
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@@ -97,9 +97,9 @@ extends Resource
@export var snow_amount: float = 0.0
@export var snow_transaction_time: float = 10.0
@export var snow_fade_time: float = 5.0
@export var snow_threshold: float = 0.6
@export var snow_accumulation_speed: float = 0.05 #0.1 -> accumulation time 10secs; 0.05 -> accumulation time 20secs; realistic; 0.2 -> accumulation time 5secs;
@export var snow_melt_speed: float = 0.1
@export var snow_threshold: float = 0.4
@export var snow_accumulation_speed: float = 0.02 #0.1 -> accumulation time 10secs; 0.05 -> accumulation time 20secs; realistic; 0.2 -> accumulation time 5secs;
@export var snow_melt_speed: float = 0.05
@export var snow_color: Color = Color(0.9, 0.95, 1.0)
@export var snow_mode_color: Color = Color(0.7, 0.75, 0.8, 1.0)

4
docs/museums/daynight/scenes/chunk_c_f_1/house_muraglione.tscn
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@@ -1,11 +1,11 @@
[gd_scene format=3 uid="uid://cahsl77384kf1"]
[ext_resource type="PackedScene" uid="uid://dllpmxm6ttwg" path="res://docs/museums/daynight/scenes/chunk_c_f_1/house_Muraglione.fbx" id="1_m4ocs"]
[ext_resource type="Material" path="res://docs/museums/daynight/scenes/chunk_c_f_1/house.tres" id="2_7l0dg"]
[ext_resource type="Material" uid="uid://biaudrjlfoflm" path="res://docs/museums/daynight/scenes/chunk_c_f_1/house.tres" id="2_7l0dg"]
[sub_resource type="ShaderMaterial" id="ShaderMaterial_bdf8l"]
[node name="House_Muraglione" unique_id=1060427946 groups=["snow_materials"] instance=ExtResource("1_m4ocs")]
[node name="House_Muraglione" unique_id=1060427946 groups=["weather_materials", "wind_materials"] instance=ExtResource("1_m4ocs")]
[node name="House_Muraglione" parent="." index="0" unique_id=517623360]
material_overlay = SubResource("ShaderMaterial_bdf8l")

2
docs/museums/daynight/scenes/grain_test/grain_test.tscn
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File diff suppressed because one or more lines are too long

28
docs/museums/daynight/scenes/grain_test/tree_leaves.gdshader
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@@ -5,6 +5,11 @@ global uniform float global_wind_speed;
global uniform vec2 global_wind_direction;
global uniform float global_wind_scale;
global uniform float global_wind_strength;
global uniform float global_snow_start_time;
global uniform float global_snow_accumulation_speed;
global uniform float global_snow_melt_time;
global uniform float global_snow_melt_speed;
global uniform vec4 global_snow_color;
uniform sampler2D wind_noise : filter_linear_mipmap;
uniform bool billboard_enabled = true;
@@ -24,6 +29,7 @@ uniform float random_mix : hint_range(0.0, 1.0) = 0.3;
uniform float cast_shadow_strength : hint_range(0.0, 1.0) = 0.6;
varying vec3 v_final_color;
varying float v_shade_factor;
float hash(vec3 p) {
p = fract(p * 0.1031);
@@ -48,6 +54,8 @@ void vertex() {
float combined_factor = mix(h_factor, leaf_rand, random_mix);
combined_factor = ceil(combined_factor * light_steps) / light_steps;
v_shade_factor = combined_factor;
vec3 dark_color = base_color.rgb * (1.0 - shadow_intensity);
vec3 light_color = base_color.rgb + (vec3(1.0) - base_color.rgb) * highlight_intensity;
v_final_color = mix(dark_color, light_color, combined_factor);
@@ -76,7 +84,25 @@ void fragment() {
vec2 shifted_uv = UV + texture_offset;
vec4 tex = texture(alpha_texture, shifted_uv);
ALBEDO = v_final_color;
// Snow accumulation
float snow_amount = 0.0;
if (global_snow_start_time >= 0.0) {
snow_amount = clamp((TIME - global_snow_start_time) * global_snow_accumulation_speed, 0.0, 1.0);
}
if (global_snow_melt_time >= 0.0) {
float melt = clamp((TIME - global_snow_melt_time) * global_snow_melt_speed, 0.0, 1.0);
snow_amount *= (1.0 - melt);
}
float top_mask = 1.0 - shifted_uv.y;
float snow_mask = smoothstep(1.0 - snow_amount, 1.2 - snow_amount, top_mask);
snow_mask *= step(0.01, snow_amount);
vec3 dark_snow = global_snow_color.rgb * (1.0 - shadow_intensity);
vec3 shaded_snow = mix(dark_snow, global_snow_color.rgb, v_shade_factor);
vec3 final_albedo = mix(v_final_color, shaded_snow, snow_mask);
ALBEDO = final_albedo;
ALPHA = tex.r * opacity;
ALPHA_SCISSOR_THRESHOLD = 0.5;
ROUGHNESS = 0.02;

8
docs/museums/daynight/scenes/grass_test/grass_test.tscn
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@@ -1,9 +1,9 @@
[gd_scene format=3 uid="uid://jj15telqu3rp"]
[ext_resource type="PackedScene" uid="uid://e1an0215p6k2" path="res://docs/museums/daynight/scenes/grain_test/tree_v1.fbx" id="1_1rhib"]
[ext_resource type="Material" path="res://docs/museums/daynight/scenes/grass_test/grass.tres" id="2_4v7oi"]
[ext_resource type="Material" path="res://docs/museums/daynight/scenes/grass_test/grass3.tres" id="3_aek5d"]
[ext_resource type="Material" path="res://docs/museums/daynight/scenes/grass_test/grass4.tres" id="4_bawi4"]
[ext_resource type="Material" uid="uid://cudoptcrtgl7u" path="res://docs/museums/daynight/scenes/grass_test/grass.tres" id="2_4v7oi"]
[ext_resource type="Material" uid="uid://bjrb33qwp1p43" path="res://docs/museums/daynight/scenes/grass_test/grass3.tres" id="3_aek5d"]
[ext_resource type="Material" uid="uid://0x17mj2v807r" path="res://docs/museums/daynight/scenes/grass_test/grass4.tres" id="4_bawi4"]
[sub_resource type="QuadMesh" id="QuadMesh_rpt6v"]
@@ -27,7 +27,7 @@ instance_count = 40
mesh = SubResource("QuadMesh_rpt6v")
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[node name="Grass" unique_id=838519336 groups=["snow_materials", "wind_materials"] instance=ExtResource("1_1rhib")]
[node name="Grass" unique_id=838519336 groups=["weather_materials", "wind_materials"] instance=ExtResource("1_1rhib")]
[node name="Leaf" parent="." index="0" unique_id=770569390]
visible = false

6
project.godot
View File

@@ -29,7 +29,7 @@ window/stretch/aspect="expand"
[global_group]
wind_materials="Materials to apply wind"
snow_materials=""
weather_materials=""
[physics]
@@ -99,3 +99,7 @@ global_snow_melt_speed={
"type": "float",
"value": 0.0
}
global_rain_intensity={
"type": "float",
"value": 0.0
}