Шейдер ударной волны для взрывов (#633)

* Adds shock wave shader (#2631)

Co-authored-by: DOOM <N/A>
Co-authored-by: Whisper <121047731+QuietlyWhisper@users.noreply.github.com>

* add explosive shockwave

* add shockwave to fireball

* wd edit

* cleanup

* remove exgreande beeping sound

---------

Co-authored-by: Vero <73014819+vero5123@users.noreply.github.com>
Co-authored-by: Whisper <121047731+QuietlyWhisper@users.noreply.github.com>

Content.Client/Entry/EntryPoint.cs

@@ -1,7 +1,6 @@
 using Content.Client._White.Chat;
 using Content.Client._White.JoinQueue;
 using Content.Client._White.Jukebox;
-using Content.Client._White.Overlays;
 using Content.Client._White.Reputation;
 using Content.Client._White.Sponsors;
 using Content.Client._White.Stalin;
@@ -10,7 +9,6 @@ using Content.Client.Administration.Managers;
 using Content.Client.Changelog;
 using Content.Client.Chat.Managers;
 using Content.Client.Eui;
-using Content.Client.Flash;
 using Content.Client.Fullscreen;
 using Content.Client.GhostKick;
 using Content.Client.Guidebook;
@@ -26,6 +24,7 @@ using Content.Client.Radiation.Overlays;
 using Content.Client.Replay;
 using Content.Client.Screenshot;
 using Content.Client.Singularity;
+using Content.Client._White.Explosion;
 using Content.Client.Stylesheets;
 using Content.Client.Viewport;
 using Content.Client.Voting;
@@ -179,6 +178,7 @@ namespace Content.Client.Entry
             _parallaxManager.LoadDefaultParallax();
 
             _overlayManager.AddOverlay(new SingularityOverlay());
+            _overlayManager.AddOverlay(new ExplosionShockWaveOverlay());
             _overlayManager.AddOverlay(new RadiationPulseOverlay());
             // _overlayManager.AddOverlay(new GrainOverlay());
             // _overlayManager.AddOverlay(new AtmOverlay());

Content.Client/_White/Explosion/RMCExplosionShockWaveOverlay.cs

@@ -0,0 +1,90 @@
+using Robust.Client.Graphics;
+using Robust.Shared.Enums;
+using Robust.Shared.Prototypes;
+using System.Numerics;
+using Content.Shared._White.Explosion;
+
+namespace Content.Client._White.Explosion;
+
+public sealed class ExplosionShockWaveOverlay : Overlay, IEntityEventSubscriber
+{
+    [Dependency] private readonly IEntityManager _entMan = default!;
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+
+    private SharedTransformSystem? _xformSystem;
+
+    public override OverlaySpace Space => OverlaySpace.WorldSpace;
+    public override bool RequestScreenTexture => true;
+
+    private readonly ShaderInstance _shader;
+
+    /// <summary>
+    ///     Maximum number of distortions that can be shown on screen at a time.
+    /// </summary>
+    public const int MaxCount = 30;
+
+    public ExplosionShockWaveOverlay()
+    {
+        IoCManager.InjectDependencies(this);
+        _shader = _prototypeManager.Index<ShaderPrototype>("ShockWave").Instance().Duplicate();
+    }
+
+    private readonly Vector2[] _positions = new Vector2[MaxCount];
+    private readonly float[] _falloffPower = new float[MaxCount];
+    private readonly float[] _sharpness = new float[MaxCount];
+    private readonly float[] _width = new float[MaxCount];
+    private int _count;
+    protected override bool BeforeDraw(in OverlayDrawArgs args)
+    {
+        if (args.Viewport.Eye == null || _xformSystem is null && !_entMan.TrySystem(out _xformSystem))
+            return false;
+
+        var query = _entMan.EntityQueryEnumerator<ExplosionShockWaveComponent, TransformComponent>();
+
+        _count = 0;
+
+        while (query.MoveNext(out var uid, out var distortion, out var xform))
+        {
+            if (xform.MapID != args.MapId)
+                continue;
+
+            var mapPos = _xformSystem.GetWorldPosition(uid);
+
+            var tempCoords = args.Viewport.WorldToLocal(mapPos);
+
+            // normalized coords, 0 - 1 plane. This is pure hell, we subtract 1 because fragment calculates from the bottom and local goes from the top of the viewport
+            tempCoords.Y = 1 - (tempCoords.Y / args.Viewport.Size.Y);
+            tempCoords.X /= args.Viewport.Size.X;
+
+            _positions[_count] = tempCoords;
+            _falloffPower[_count] = distortion.FalloffPower;
+            _sharpness[_count] = distortion.Sharpness;
+            _width[_count] = distortion.Width;
+            _count++;
+
+            if (_count == MaxCount)
+                break;
+        }
+
+        return _count > 0;
+    }
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        if (ScreenTexture == null || args.Viewport.Eye == null)
+            return;
+
+        _shader?.SetParameter("renderScale", args.Viewport.RenderScale * args.Viewport.Eye.Scale);
+        _shader?.SetParameter("count", _count);
+        _shader?.SetParameter("position", _positions);
+        _shader?.SetParameter("falloffPower", _falloffPower);
+        _shader?.SetParameter("sharpness", _sharpness);
+        _shader?.SetParameter("width", _width);
+        _shader?.SetParameter("SCREEN_TEXTURE", ScreenTexture);
+
+        var worldHandle = args.WorldHandle;
+        worldHandle.UseShader(_shader);
+        worldHandle.DrawRect(args.WorldAABB, Color.White);
+        worldHandle.UseShader(null);
+    }
+}

Content.Server/Explosion/EntitySystems/ClusterGrenadeSystem.cs

@@ -1,14 +1,14 @@
+using System.Numerics;
 using Content.Server.Explosion.Components;
+using Content.Server.Weapons.Ranged.Systems;
+using Content.Shared.Explosion.Components;
 using Content.Shared.Flash.Components;
 using Content.Shared.Interaction;
 using Content.Shared.Throwing;
-using Robust.Shared.Containers;
-using Robust.Shared.Random;
-using Content.Server.Weapons.Ranged.Systems;
-using System.Numerics;
-using Content.Shared.Explosion.Components;
 using Robust.Server.Containers;
 using Robust.Server.GameObjects;
+using Robust.Shared.Containers;
+using Robust.Shared.Random;
 
 namespace Content.Server.Explosion.EntitySystems;
 
@@ -114,6 +114,7 @@ public sealed class ClusterGrenadeSystem : EntitySystem
                         RaiseLocalEvent(uid, ref ev);
                     }
                 }
+
                 // delete the empty shell of the clusterbomb
                 Del(uid);
             }

Content.Server/Explosion/EntitySystems/ExplosionSystem.cs

@@ -7,6 +7,7 @@ using Content.Server.Explosion.Components;
 using Content.Server.NodeContainer.EntitySystems;
 using Content.Server.NPC.Pathfinding;
 using Content.Server.Station.Systems;
+using Content.Shared._White.Explosion;
 using Content.Shared.Audio;
 using Content.Shared.Armor;
 using Content.Shared.Camera;
@@ -176,6 +177,11 @@ public sealed partial class ExplosionSystem
             totalIntensity ??= RadiusToIntensity((float) radius, explosive.IntensitySlope, explosive.MaxIntensity);
         totalIntensity ??= explosive.TotalIntensity;
 
+        // WD edit start
+        var ev = new ExplosiveTriggeredEvent();
+        RaiseLocalEvent(uid, ref ev);
+        // WD edit end
+
         QueueExplosion(uid,
             explosive.ExplosionType,
             (float) totalIntensity,

Content.Server/Projectiles/ProjectileSystem.cs

@@ -69,16 +69,18 @@ public sealed class ProjectileSystem : SharedProjectileSystem
         var modifiedDamage = _damageableSystem.TryChangeDamage(target, ev.Damage * DamageModifier, component.IgnoreResistances, origin: component.Shooter);
         var deleted = Deleted(target);
 
-        if (modifiedDamage is not null && EntityManager.EntityExists(component.Shooter))
+        if (modifiedDamage is not null && (EntityManager.EntityExists(component.Shooter) || EntityManager.EntityExists(component.Weapon)))
         {
             if (modifiedDamage.Any() && !deleted)
             {
                 _color.RaiseEffect(Color.Red, new List<EntityUid> { target }, Filter.Pvs(target, entityManager: EntityManager));
             }
 
+            var shooterOrWeapon = EntityManager.EntityExists(component.Shooter) ? component.Shooter!.Value : component.Weapon!.Value;
+
             _adminLogger.Add(LogType.BulletHit,
                 HasComp<ActorComponent>(target) ? LogImpact.Extreme : LogImpact.High,
-                $"Projectile {ToPrettyString(uid):projectile} shot by {ToPrettyString(component.Shooter!.Value):user} hit {otherName:target} and dealt {modifiedDamage.GetTotal():damage} damage");
+                $"Projectile {ToPrettyString(uid):projectile} shot by {ToPrettyString(shooterOrWeapon):source} hit {otherName:target} and dealt {modifiedDamage.GetTotal():damage} damage");
         }
 
         if (!deleted)

Content.Shared/Projectiles/SharedProjectileSystem.cs

@@ -203,9 +203,9 @@ public abstract partial class SharedProjectileSystem : EntitySystem
         }
     }
 
-    public void SetShooter(EntityUid id, ProjectileComponent component, EntityUid shooterId)
+    public void SetShooter(EntityUid id, ProjectileComponent component, EntityUid? shooterId = null)
     {
-        if (component.Shooter == shooterId)
+        if (component.Shooter == shooterId || shooterId == null)
             return;
 
         component.Shooter = shooterId;

Content.Shared/Weapons/Ranged/Systems/SharedGunSystem.cs

@@ -423,7 +423,7 @@ public abstract partial class SharedGunSystem : EntitySystem
         Physics.SetLinearVelocity(uid, finalLinear, body: physics);
 
         var projectile = EnsureComp<ProjectileComponent>(uid);
-        Projectiles.SetShooter(uid, projectile, user ?? gunUid);
+        Projectiles.SetShooter(uid, projectile, user);
         projectile.Weapon = gunUid;
 
         TransformSystem.SetWorldRotation(uid, direction.ToWorldAngle());

Content.Shared/_White/Explosion/CMExplosionEffectComponent.cs

@@ -0,0 +1,27 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared._White.Explosion;
+
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+[Access(typeof(SharedExplosionSystem))]
+public sealed partial class ExplosionEffectComponent : Component
+{
+    [DataField, AutoNetworkedField]
+    public EntProtoId Explosion = "ExplosionEffectGrenade";
+
+    [DataField, AutoNetworkedField]
+    public EntProtoId ShockWave = "ExplosionEffectGrenadeShockWave";
+
+    [DataField, AutoNetworkedField]
+    public List<EntProtoId> ShrapnelEffects = new() { "ExplosionEffectShrapnel1", "ExplosionEffectShrapnel2" };
+
+    [DataField, AutoNetworkedField]
+    public int MinShrapnel = 5;
+
+    [DataField, AutoNetworkedField]
+    public int MaxShrapnel = 9;
+
+    [DataField, AutoNetworkedField]
+    public float ShrapnelSpeed = 5;
+}

Content.Shared/_White/Explosion/ExplosiveTriggeredEvent.cs

@@ -0,0 +1,4 @@
+namespace Content.Shared._White.Explosion;
+
+[ByRefEvent]
+public readonly record struct ExplosiveTriggeredEvent;

Content.Shared/_White/Explosion/RMCExplosionShockWaveComponent.cs

@@ -0,0 +1,28 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared._White.Explosion
+{
+    [RegisterComponent, NetworkedComponent]
+    [AutoGenerateComponentState]
+    [Access(typeof(SharedExplosionSystem))]
+    public sealed partial class ExplosionShockWaveComponent : Component
+    {
+        /// <summary>
+        ///     The rate at which the wave fades, lower values means it's active for longer.
+        /// </summary>
+        [DataField, AutoNetworkedField, ViewVariables(VVAccess.ReadWrite)]
+        public float FalloffPower = 40f;
+
+        /// <summary>
+        ///     How sharp the wave distortion is. Higher values make the wave more pronounced.
+        /// </summary>
+        [DataField, AutoNetworkedField, ViewVariables(VVAccess.ReadWrite)]
+        public float Sharpness = 10.0f;
+
+        /// <summary>
+        ///     Width of the wave.
+        /// </summary>
+        [DataField, AutoNetworkedField, ViewVariables(VVAccess.ReadWrite)]
+        public float Width = 0.8f;
+    }
+}

Content.Shared/_White/Explosion/SharedCMExplosionSystem.cs

@@ -0,0 +1,36 @@
+using Content.Shared.Throwing;
+using Robust.Shared.Random;
+
+namespace Content.Shared._White.Explosion;
+
+public sealed class SharedExplosionSystem : EntitySystem
+{
+    [Dependency] private readonly IRobustRandom _random = default!;
+    [Dependency] private readonly ThrowingSystem _throwing = default!;
+
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<ExplosionEffectComponent, ExplosiveTriggeredEvent>(OnExplosionEffectTriggered);
+    }
+
+    private void OnExplosionEffectTriggered(EntityUid uid, ExplosionEffectComponent component, ref ExplosiveTriggeredEvent args)
+    {
+        SpawnNextToOrDrop(component.ShockWave, uid);
+        SpawnNextToOrDrop(component.Explosion, uid);
+
+        if (component.MaxShrapnel <= 0)
+            return;
+
+        foreach (var effect in component.ShrapnelEffects)
+        {
+            var shrapnelCount = _random.Next(component.MinShrapnel, component.MaxShrapnel);
+            for (var i = 0; i < shrapnelCount; i++)
+            {
+                var angle = _random.NextAngle();
+                var direction = angle.ToVec().Normalized() * 10;
+                var shrapnel = SpawnNextToOrDrop(effect, uid);
+                _throwing.TryThrow(shrapnel, direction, component.ShrapnelSpeed / 10);
+            }
+        }
+    }
+}

Resources/Prototypes/Entities/Objects/Weapons/Guns/Projectiles/magic.yml

@@ -29,6 +29,8 @@
     ignited: true
   - type: IgniteOnCollide
     fireStacks: 0.35
+  - type: ExplosionEffect # WD
+    maxShrapnel: 0
 
 - type: entity
   id: ProjectileAnomalyFireball

Resources/Prototypes/Entities/Objects/Weapons/Guns/Projectiles/projectiles.yml

@@ -743,6 +743,8 @@
     totalIntensity: 150 # a ~2 tile radius
     intensitySlope: 5
     maxIntensity: 10
+  - type: ExplosionEffect # WD
+    maxShrapnel: 0
 
 - type: entity
   id: BulletGrenadeFlash
@@ -781,6 +783,8 @@
     totalIntensity: 175 # about a ~6 tile radius
     intensitySlope: 1
     maxIntensity: 10
+  - type: ExplosionEffect # WD
+    maxShrapnel: 0
 
 - type: entity
   id: BulletGrenadeEMP

Resources/Prototypes/Entities/Objects/Weapons/Throwable/grenades.yml

@@ -36,10 +36,18 @@
           Primed: { state: primed }
           Unprimed: { state: icon }
 
+- type: entity # WD
+  abstract: true
+  parent: GrenadeBase
+  id: GrenadeBaseExplosionEffect
+  components:
+  - type: ExplosionEffect
+    maxShrapnel: 0
+
 - type: entity
   name: explosive grenade
   description: Grenade that creates a small but devastating explosion.
-  parent: GrenadeBase
+  parent: GrenadeBaseExplosionEffect # WD
   id: ExGrenade
   components:
   - type: ExplodeOnTrigger
@@ -49,13 +57,8 @@
     intensitySlope: 3
     totalIntensity: 120 # about a ~4 tile radius
     canCreateVacuum: false
-  - type: OnUseTimerTrigger
+  - type: ExplosionEffect
-    beepSound:
+    maxShrapnel: 12
-      path: "/Audio/Effects/beep1.ogg"
-      params:
-        volume: 5
-    initialBeepDelay: 0
-    beepInterval: 2 # 2 beeps total (at 0 and 2)
 
 - type: entity
   name: flashbang
@@ -102,7 +105,7 @@
 - type: entity
   name: syndicate minibomb
   description: A syndicate-manufactured explosive used to stow destruction and cause chaos.
-  parent: GrenadeBase
+  parent: GrenadeBaseExplosionEffect # WD
   id: SyndieMiniBomb
   components:
   - type: Sprite
@@ -235,7 +238,7 @@
 - type: entity
   name: the nuclear option
   description: Please don't throw it, think of the children.
-  parent: GrenadeBase
+  parent: GrenadeBaseExplosionEffect # WD
   id: NuclearGrenade
   components:
   - type: Sprite
@@ -326,7 +329,7 @@
 - type: entity
   name: holy hand grenade
   description: O Lord, bless this thy hand grenade, that with it thou mayst blow thine enemies to tiny bits, in thy mercy.
-  parent: GrenadeBase
+  parent: GrenadeBaseExplosionEffect # WD
   id: HolyHandGrenade
   components:
   - type: Sprite

Resources/Prototypes/Entities/Structures/Storage/Tanks/tanks.yml

@@ -35,6 +35,8 @@
     explosionType: FireBomb # WD EDIT
     totalIntensity: 120 # ~ 5 tile radius
     canCreateVacuum: false
+  - type: ExplosionEffect # WD
+    maxShrapnel: 0
 
 - type: entity
   id: WeldingFuelTankFull

Resources/Prototypes/_White/Entities/Objects/Weapons/Throwable/grenades.yml

@@ -0,0 +1,92 @@
+- type: entity
+  id: ExplosionEffectGrenade
+  noSpawn: true
+  components:
+  - type: Sprite
+    sprite: White/Effects/grenade_explosion.rsi
+    state: grenade
+  - type: TimedDespawn
+    lifetime: 0.5
+
+- type: entity
+  id: ExplosionEffectGrenadeShockWave
+  components:
+  - type: TimedDespawn
+    lifetime: 0.5
+  - type: ExplosionShockWave
+    falloffPower: 30
+    sharpness: 15
+    width: 1.3
+
+- type: entity
+  id: ExplosionEffectShrapnel1
+  noSpawn: true
+  components:
+  - type: CollisionWake
+  - type: Physics
+    bodyType: Dynamic
+    fixedRotation: true
+  - type: Fixtures
+    fixtures:
+      fix1:
+        shape:
+          !type:PhysShapeAabb
+          bounds: "-0.25,-0.25,0.25,0.25"
+        density: 20
+        mask:
+        - ItemMask
+        restitution: 0.3
+        friction: 0
+  - type: Sprite
+    sprite: White/Objects/Weapons/shrapnel.rsi
+    state: shrapnel_bright1
+  - type: TimedDespawn
+    lifetime: 0.5
+#  - type: DeleteOnCollide
+
+- type: entity
+  parent: ExplosionEffectShrapnel1
+  id: ExplosionEffectShrapnel2
+  noSpawn: true
+  components:
+  - type: Sprite
+    state: shrapnel_bright2
+
+# Не работает каким-то хуем
+- type: entity
+  parent: BaseBullet
+  id: ProjectileShrapnel
+  name: shrapnel
+  noSpawn: true
+  components:
+  - type: Sprite
+    sprite: White/Objects/Weapons/Ammunition/Projectiles/shotgun_projectiles.rsi
+    layers:
+    - state: buckshot
+  - type: Fixtures
+    fixtures:
+      projectile:
+        shape:
+          !type:PhysShapeAabb
+          bounds: "-0.1,-0.1,0.1,0.1"
+        hard: false
+        mask:
+        - Impassable
+        - BulletImpassable
+        - LowImpassable
+      fly-by:
+        shape: !type:PhysShapeCircle
+          radius: 1.5
+        layer:
+        - Impassable
+        - MidImpassable
+        - HighImpassable
+        - LowImpassable
+        hard: False
+  - type: Projectile
+    damage:
+      types:
+        Piercing: 12
+    deleteOnCollide: true
+  - type: TimedDespawn
+    lifetime: 0.5

Resources/Prototypes/_White/Shaders/shaders.yml

@@ -0,0 +1,4 @@
+- type: shader
+  id: ShockWave
+  kind: source
+  path: "/Textures/White/Shaders/shock_wave.swsl"

Resources/Textures/White/Effects/grenade_explosion.rsi/meta.json

@@ -0,0 +1,26 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Taken from cmss13 at https://github.com/cmss13-devs/cmss13/blob/add6123ac6b3263f257e4b233ef5a8fea5d3d317/icons/effects/explosion.dmi",
+  "size": {
+    "x": 48,
+    "y": 48
+  },
+  "states": [
+    {
+      "name": "grenade",
+      "delays": [
+        [
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1,
+          0.1
+        ]
+      ]
+    }
+  ]
+}

Resources/Textures/White/Objects/Weapons/Ammunition/Projectiles/shotgun_projectiles.rsi/meta.json

@@ -0,0 +1,23 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Taken from cmss13 at https://github.com/cmss13-devs/cmss13/blob/a86a9e2e57e5c00195cab704713a4962e8bc973a/icons/obj/items/weapons/projectiles.dmi",
+  "size": {
+    "x": 32,
+    "y": 32
+  },
+  "states": [
+    {
+      "name": "autocannon"
+    },
+    {
+      "name": "buckshot"
+    },
+    {
+      "name": "beanbag"
+    },
+    {
+      "name": "flechette"
+    }
+  ]
+}

Resources/Textures/White/Objects/Weapons/shrapnel.rsi/meta.json

@@ -0,0 +1,55 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Taken from cmss13 at https://github.com/cmss13-devs/cmss13/blob/a86a9e2e57e5c00195cab704713a4962e8bc973a/icons/obj/items/weapons/projectiles.dmi",
+  "size": {
+    "x": 32,
+    "y": 32
+  },
+  "states": [
+    {
+      "name": "shrapnelshot"
+    },
+    {
+      "name": "shrapnelshot_bit"
+    },
+    {
+      "name": "shrapnel_glass"
+    },
+    {
+      "name": "shrapnel_light"
+    },
+    {
+      "name": "shrapnel_xeno"
+    },
+    {
+      "name": "shrapnel_human"
+    },
+    {
+      "name": "shrapnel_human1"
+    },
+    {
+      "name": "shrapnel_human2"
+    },
+    {
+      "name": "shrapnel_bright1",
+      "delays": [
+        [
+          0.1,
+          0.1,
+          0.1
+        ]
+      ]
+    },
+    {
+      "name": "shrapnel_bright2",
+      "delays": [
+        [
+          0.1,
+          0.1,
+          0.1
+        ]
+      ]
+    }
+  ]
+}

Resources/Textures/White/Shaders/shock_wave.swsl

@@ -0,0 +1,40 @@
+uniform sampler2D SCREEN_TEXTURE;
+uniform highp vec2 renderScale;
+uniform lowp int count;
+uniform highp vec2[10] position;
+uniform highp float[10] sharpness;
+uniform highp float[10] width;
+uniform highp float[10] falloffPower;
+
+void fragment() {
+    highp vec2 coord = FRAGCOORD.xy * SCREEN_PIXEL_SIZE.xy;
+    highp float ratio = SCREEN_PIXEL_SIZE.y / SCREEN_PIXEL_SIZE.x * 0.6;
+
+    for (int i = 0; i < count; ++i) {
+        highp vec2 WaveCentre = position[i];
+
+        highp float Dist = distance(
+            vec2(coord.x, coord.y * ratio),
+            vec2(WaveCentre.x, WaveCentre.y * ratio)
+        );
+
+        // removes the first few frames of the "animation"
+        Dist = max(Dist, 0.13);
+
+        highp float offset = (TIME - floor(TIME)) / TIME;
+        highp float CurrentTime = TIME * offset;
+
+        if (Dist <= (CurrentTime + 0.1) && Dist >= (CurrentTime - 0.1)) {
+            highp float Diff = Dist - CurrentTime;
+            highp float ScaleDiff = 1.0 - pow(abs(Diff * sharpness[i]), width[i]);
+            highp float DiffTime = Diff * ScaleDiff;
+            highp vec2 DiffTexCoord = normalize(coord - WaveCentre);
+            coord += (DiffTexCoord * DiffTime) / (CurrentTime * Dist * falloffPower[i]);
+            highp vec4 Color = zTextureSpec(SCREEN_TEXTURE, coord);
+            Color += (Color * ScaleDiff) / (CurrentTime * Dist * 40.0);
+            COLOR = Color;
+        } else {
+            COLOR = zTextureSpec(SCREEN_TEXTURE, UV);
+        }
+    }
+}