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-rw-r--r--scene/resources/sky_material.cpp86
1 files changed, 57 insertions, 29 deletions
diff --git a/scene/resources/sky_material.cpp b/scene/resources/sky_material.cpp
index 4681d3d6e3..5d1a223cc7 100644
--- a/scene/resources/sky_material.cpp
+++ b/scene/resources/sky_material.cpp
@@ -144,6 +144,15 @@ float ProceduralSkyMaterial::get_sun_curve() const {
return sun_curve;
}
+void ProceduralSkyMaterial::set_use_debanding(bool p_use_debanding) {
+ use_debanding = p_use_debanding;
+ RS::get_singleton()->material_set_param(_get_material(), "use_debanding", use_debanding);
+}
+
+bool ProceduralSkyMaterial::get_use_debanding() const {
+ return use_debanding;
+}
+
Shader::Mode ProceduralSkyMaterial::get_shader_mode() const {
return Shader::MODE_SKY;
}
@@ -199,6 +208,9 @@ void ProceduralSkyMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_sun_curve", "curve"), &ProceduralSkyMaterial::set_sun_curve);
ClassDB::bind_method(D_METHOD("get_sun_curve"), &ProceduralSkyMaterial::get_sun_curve);
+ ClassDB::bind_method(D_METHOD("set_use_debanding", "use_debanding"), &ProceduralSkyMaterial::set_use_debanding);
+ ClassDB::bind_method(D_METHOD("get_use_debanding"), &ProceduralSkyMaterial::get_use_debanding);
+
ADD_GROUP("Sky", "sky_");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "sky_top_color", PROPERTY_HINT_COLOR_NO_ALPHA), "set_sky_top_color", "get_sky_top_color");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "sky_horizon_color", PROPERTY_HINT_COLOR_NO_ALPHA), "set_sky_horizon_color", "get_sky_horizon_color");
@@ -214,8 +226,11 @@ void ProceduralSkyMaterial::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ground_energy", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_ground_energy", "get_ground_energy");
ADD_GROUP("Sun", "sun_");
- ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_angle_max", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_angle_max", "get_sun_angle_max");
+ ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_angle_max", PROPERTY_HINT_RANGE, "0,360,0.01,degrees"), "set_sun_angle_max", "get_sun_angle_max");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_curve", PROPERTY_HINT_EXP_EASING), "set_sun_curve", "get_sun_curve");
+
+ ADD_GROUP("", "");
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_debanding"), "set_use_debanding", "get_use_debanding");
}
void ProceduralSkyMaterial::cleanup_shader() {
@@ -235,18 +250,26 @@ void ProceduralSkyMaterial::_update_shader() {
shader_type sky;
-uniform vec4 sky_top_color : hint_color = vec4(0.385, 0.454, 0.55, 1.0);
-uniform vec4 sky_horizon_color : hint_color = vec4(0.646, 0.656, 0.67, 1.0);
+uniform vec4 sky_top_color : source_color = vec4(0.385, 0.454, 0.55, 1.0);
+uniform vec4 sky_horizon_color : source_color = vec4(0.646, 0.656, 0.67, 1.0);
uniform float sky_curve : hint_range(0, 1) = 0.15;
uniform float sky_energy = 1.0;
-uniform sampler2D sky_cover : hint_black_albedo;
-uniform vec4 sky_cover_modulate : hint_color = vec4(1.0, 1.0, 1.0, 1.0);
-uniform vec4 ground_bottom_color : hint_color = vec4(0.2, 0.169, 0.133, 1.0);
-uniform vec4 ground_horizon_color : hint_color = vec4(0.646, 0.656, 0.67, 1.0);
+uniform sampler2D sky_cover : source_color, hint_default_black;
+uniform vec4 sky_cover_modulate : source_color = vec4(1.0, 1.0, 1.0, 1.0);
+uniform vec4 ground_bottom_color : source_color = vec4(0.2, 0.169, 0.133, 1.0);
+uniform vec4 ground_horizon_color : source_color = vec4(0.646, 0.656, 0.67, 1.0);
uniform float ground_curve : hint_range(0, 1) = 0.02;
uniform float ground_energy = 1.0;
uniform float sun_angle_max = 30.0;
uniform float sun_curve : hint_range(0, 1) = 0.15;
+uniform bool use_debanding = true;
+
+// https://www.iryoku.com/next-generation-post-processing-in-call-of-duty-advanced-warfare
+vec3 interleaved_gradient_noise(vec2 pos) {
+ const vec3 magic = vec3(0.06711056f, 0.00583715f, 52.9829189f);
+ float res = fract(magic.z * fract(dot(pos, magic.xy))) * 2.0 - 1.0;
+ return vec3(res, -res, res) / 255.0;
+}
void sky() {
float v_angle = acos(clamp(EYEDIR.y, -1.0, 1.0));
@@ -302,6 +325,9 @@ void sky() {
ground *= ground_energy;
COLOR = mix(ground, sky, step(0.0, EYEDIR.y));
+ if (use_debanding) {
+ COLOR += interleaved_gradient_noise(FRAGCOORD.xy);
+ }
}
)");
}
@@ -322,6 +348,7 @@ ProceduralSkyMaterial::ProceduralSkyMaterial() {
set_sun_angle_max(30.0);
set_sun_curve(0.15);
+ set_use_debanding(true);
}
ProceduralSkyMaterial::~ProceduralSkyMaterial() {
@@ -407,7 +434,7 @@ void PanoramaSkyMaterial::_update_shader() {
shader_type sky;
-uniform sampler2D source_panorama : %s, hint_black_albedo;
+uniform sampler2D source_panorama : %s, source_color, hint_default_black;
void sky() {
COLOR = texture(source_panorama, SKY_COORDS).rgb;
@@ -510,13 +537,13 @@ float PhysicalSkyMaterial::get_exposure() const {
return exposure;
}
-void PhysicalSkyMaterial::set_dither_strength(float p_dither_strength) {
- dither_strength = p_dither_strength;
- RS::get_singleton()->material_set_param(_get_material(), "dither_strength", dither_strength);
+void PhysicalSkyMaterial::set_use_debanding(bool p_use_debanding) {
+ use_debanding = p_use_debanding;
+ RS::get_singleton()->material_set_param(_get_material(), "use_debanding", use_debanding);
}
-float PhysicalSkyMaterial::get_dither_strength() const {
- return dither_strength;
+bool PhysicalSkyMaterial::get_use_debanding() const {
+ return use_debanding;
}
void PhysicalSkyMaterial::set_night_sky(const Ref<Texture2D> &p_night_sky) {
@@ -578,8 +605,8 @@ void PhysicalSkyMaterial::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_exposure", "exposure"), &PhysicalSkyMaterial::set_exposure);
ClassDB::bind_method(D_METHOD("get_exposure"), &PhysicalSkyMaterial::get_exposure);
- ClassDB::bind_method(D_METHOD("set_dither_strength", "strength"), &PhysicalSkyMaterial::set_dither_strength);
- ClassDB::bind_method(D_METHOD("get_dither_strength"), &PhysicalSkyMaterial::get_dither_strength);
+ ClassDB::bind_method(D_METHOD("set_use_debanding", "use_debanding"), &PhysicalSkyMaterial::set_use_debanding);
+ ClassDB::bind_method(D_METHOD("get_use_debanding"), &PhysicalSkyMaterial::get_use_debanding);
ClassDB::bind_method(D_METHOD("set_night_sky", "night_sky"), &PhysicalSkyMaterial::set_night_sky);
ClassDB::bind_method(D_METHOD("get_night_sky"), &PhysicalSkyMaterial::get_night_sky);
@@ -597,7 +624,7 @@ void PhysicalSkyMaterial::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "sun_disk_scale", PROPERTY_HINT_RANGE, "0,360,0.01"), "set_sun_disk_scale", "get_sun_disk_scale");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "ground_color", PROPERTY_HINT_COLOR_NO_ALPHA), "set_ground_color", "get_ground_color");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "exposure", PROPERTY_HINT_RANGE, "0,128,0.01"), "set_exposure", "get_exposure");
- ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "dither_strength", PROPERTY_HINT_RANGE, "0,10,0.01"), "set_dither_strength", "get_dither_strength");
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_debanding"), "set_use_debanding", "get_use_debanding");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "night_sky", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_night_sky", "get_night_sky");
}
@@ -619,18 +646,18 @@ void PhysicalSkyMaterial::_update_shader() {
shader_type sky;
uniform float rayleigh : hint_range(0, 64) = 2.0;
-uniform vec4 rayleigh_color : hint_color = vec4(0.3, 0.405, 0.6, 1.0);
+uniform vec4 rayleigh_color : source_color = vec4(0.3, 0.405, 0.6, 1.0);
uniform float mie : hint_range(0, 1) = 0.005;
uniform float mie_eccentricity : hint_range(-1, 1) = 0.8;
-uniform vec4 mie_color : hint_color = vec4(0.69, 0.729, 0.812, 1.0);
+uniform vec4 mie_color : source_color = vec4(0.69, 0.729, 0.812, 1.0);
uniform float turbidity : hint_range(0, 1000) = 10.0;
uniform float sun_disk_scale : hint_range(0, 360) = 1.0;
-uniform vec4 ground_color : hint_color = vec4(0.1, 0.07, 0.034, 1.0);
+uniform vec4 ground_color : source_color = vec4(0.1, 0.07, 0.034, 1.0);
uniform float exposure : hint_range(0, 128) = 0.1;
-uniform float dither_strength : hint_range(0, 10) = 1.0;
+uniform bool use_debanding = true;
-uniform sampler2D night_sky : hint_black_albedo;
+uniform sampler2D night_sky : source_color, hint_default_black;
const vec3 UP = vec3( 0.0, 1.0, 0.0 );
@@ -646,11 +673,11 @@ float henyey_greenstein(float cos_theta, float g) {
return k * (1.0 - g * g) / (pow(1.0 + g * g - 2.0 * g * cos_theta, 1.5));
}
-// From: https://www.shadertoy.com/view/4sfGzS credit to iq
-float hash(vec3 p) {
- p = fract( p * 0.3183099 + 0.1 );
- p *= 17.0;
- return fract(p.x * p.y * p.z * (p.x + p.y + p.z));
+// https://www.iryoku.com/next-generation-post-processing-in-call-of-duty-advanced-warfare
+vec3 interleaved_gradient_noise(vec2 pos) {
+ const vec3 magic = vec3(0.06711056f, 0.00583715f, 52.9829189f);
+ float res = fract(magic.z * fract(dot(pos, magic.xy))) * 2.0 - 1.0;
+ return vec3(res, -res, res) / 255.0;
}
void sky() {
@@ -700,8 +727,9 @@ void sky() {
vec3 color = (Lin + L0) * 0.04;
COLOR = pow(color, vec3(1.0 / (1.2 + (1.2 * sun_fade))));
COLOR *= exposure;
- // Make optional, eliminates banding.
- COLOR += (hash(EYEDIR * 1741.9782) * 0.08 - 0.04) * 0.016 * dither_strength;
+ if (use_debanding) {
+ COLOR += interleaved_gradient_noise(FRAGCOORD.xy);
+ }
} else {
// There is no sun, so display night_sky and nothing else.
COLOR = texture(night_sky, SKY_COORDS).xyz * 0.04;
@@ -724,7 +752,7 @@ PhysicalSkyMaterial::PhysicalSkyMaterial() {
set_sun_disk_scale(1.0);
set_ground_color(Color(0.1, 0.07, 0.034));
set_exposure(0.1);
- set_dither_strength(1.0);
+ set_use_debanding(true);
}
PhysicalSkyMaterial::~PhysicalSkyMaterial() {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 12:59:52 +0000