победа над водопадами, шейдеры m2

addons/mpq_extractor/loaders/wow_liquid_material.gd

@@ -9,6 +9,10 @@ static func clear_cache() -> void:
 	_cache.clear()
 
 
+static func _ensure_wow_shader_globals() -> void:
+	pass
+
+
 static func build(liquid_id: int) -> ShaderMaterial:
 	var key := "adt:%d" % liquid_id
 	if _cache.has(key):
@@ -108,6 +112,7 @@ static func _get_shader() -> Shader:
 	if _shader:
 		return _shader
 
+	_ensure_wow_shader_globals()
 	_shader = Shader.new()
 	_shader.code = """
 shader_type spatial;
@@ -123,7 +128,12 @@ uniform float fresnel_power = 2.3;
 uniform float emission_strength = 0.025;
 uniform float magma_mode = 0.0;
 
+global uniform vec4 wow_fog_color;
+global uniform vec2 wow_fog_range;
+global uniform float wow_fog_density;
+
 varying vec3 world_pos;
+varying vec3 view_pos;
 
 float hash21(vec2 p) {
 	return fract(sin(dot(p, vec2(127.1, 311.7))) * 43758.5453123);
@@ -140,8 +150,16 @@ float noise21(vec2 p) {
 	return mix(mix(a, b, u.x), mix(c, d, u.x), u.y);
 }
 
+vec3 apply_wow_fog(vec3 color) {
+	float dist = length(view_pos);
+	float range_fog = smoothstep(wow_fog_range.x, wow_fog_range.y, dist);
+	float fog_amount = range_fog * clamp(wow_fog_density, 0.0, 1.0);
+	return mix(color, wow_fog_color.rgb, fog_amount);
+}
+
 void vertex() {
 	world_pos = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
+	view_pos = (MODELVIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;
 	float t = TIME * wave_speed;
 	float wave_a = sin(world_pos.x * wave_scale + t);
 	float wave_b = cos(world_pos.z * wave_scale * 1.37 - t * 1.21);
@@ -170,7 +188,7 @@ void fragment() {
 		EMISSION = color * emission_strength;
 	}
 
-	ALBEDO = color;
+	ALBEDO = apply_wow_fog(color);
 	ALPHA = clamp(alpha_base + fresnel * 0.18 + ripple * 0.06, 0.0, 1.0);
 }
 """