├── LICENSE.txt ├── IKCulling.sln ├── README.md ├── IKCulling ├── ResoniteIKCulling.csproj └── ResoniteIKCulling.cs └── .gitignore /LICENSE.txt: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2022 KyuubiYoru 4 | 5 | Copyright (c) 2024 Raidriar796 6 | 7 | Permission is hereby granted, free of charge, to any person obtaining a copy 8 | of this software and associated documentation files (the "Software"), to deal 9 | in the Software without restriction, including without limitation the rights 10 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 | copies of the Software, and to permit persons to whom the Software is 12 | furnished to do so, subject to the following conditions: 13 | 14 | The above copyright notice and this permission notice shall be included in all 15 | copies or substantial portions of the Software. 16 | 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 | SOFTWARE. 24 | -------------------------------------------------------------------------------- /IKCulling.sln: -------------------------------------------------------------------------------- 1 | 2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 16 4 | VisualStudioVersion = 16.0.31424.327 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ResoniteIKCulling", "IKCulling\ResoniteIKCulling.csproj", "{33E73217-CC81-4B89-9313-BF50DD67E491}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {33E73217-CC81-4B89-9313-BF50DD67E491}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {33E73217-CC81-4B89-9313-BF50DD67E491}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {33E73217-CC81-4B89-9313-BF50DD67E491}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {33E73217-CC81-4B89-9313-BF50DD67E491}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {849F04CB-422F-4B25-89A3-BFD1AF70368D} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ResoniteIkCulling 2 | 3 | A [ResoniteModLoader](https://github.com/resonite-modding-group/ResoniteModLoader) mod for [Resonite](https://resonite.com/) that disables the IK of Users who are behind you or far away. Includes IK throttling. 4 | 5 | ## Requirements 6 | - [ResoniteModLoader](https://github.com/resonite-modding-group/ResoniteModLoader) 2.6.0 or later 7 | - [ResoniteModSettings](https://github.com/badhaloninja/ResoniteModSettings) for live config editing 8 | 9 | ## Installation 10 | 1. Install [ResoniteModLoader](https://github.com/resonite-modding-group/ResoniteModLoader). 11 | 2. Place [ResoniteIKCulling.dll](https://github.com/Raidriar796/ResoniteIkCulling/releases/latest/download/ResoniteIKCulling.dll) into your `rml_mods` folder. This folder should be at `C:\Program Files (x86)\Steam\steamapps\common\Resonite\rml_mods` for a default install. You can create it if it's missing, or if you launch the game once with ResoniteModLoader installed it will create the folder for you. 12 | 3. Start the game. If you want to verify that the mod is working you can check your Resonite logs. 13 | 14 | ## How does it work? 15 | 16 | This mod tries to reduce the amount of work that the CPU does when calculating IK. This is done by interrupting the normal IK solve process by first checking a handful of conditions to determine if the IK should or should not solve, then it either skips the solving process or lets it proceed. This does add slightly more work before each IK solve so the default options are configured to reduce as much work as possible while trying to be unintrusive. 17 | 18 | ## How much does this improve performance? 19 | 20 | In most situations, not much if at all. This is because IK itself is rarely the bottleneck of any given session. Despite this, it is overall reducing the work the CPU has to do as IK is one of the heaviest components you'll commonly run into, especially since the vast majority of avatars utilize Resonite's IK system. There is often a lot going on in any given session, so at the very least you may see an improvement in thermals or power consumption, but you may not see benefits in framerate or frametimes unless you use throttling options or a session is actually being bottlenecked by IK. 21 | 22 | ## Info 23 | This is a fork of [IKCulling](https://github.com/KyuubiYoru/IkCulling/) for that aims to improve and maintain the mod. 24 | -------------------------------------------------------------------------------- /IKCulling/ResoniteIKCulling.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | {CE8BB933-8E61-419C-A334-FA3CFC5E4E72} 4 | Library 5 | Properties 6 | ResoniteIKCulling 7 | ResoniteIKCulling 8 | Raidriar796 9 | Copyright © 2025 Raidriar796 10 | 2.7.0 11 | 2.7.0.0 12 | 2.7.0.0 13 | true 14 | net9.0 15 | 512 16 | latest 17 | true 18 | false 19 | false 20 | None 21 | 22 | 23 | C:\Program Files (x86)\Steam\steamapps\common\Resonite\ 24 | $(HOME)/.steam/steam/steamapps/common/Resonite/ 25 | 26 | 27 | 28 | 29 | $(ResonitePath)Libraries\ResoniteModLoader.dll 30 | False 31 | 32 | 33 | $(ResonitePath)rml_libs\0Harmony.dll 34 | $(ResonitePath)rml_libs\0Harmony.dll 35 | False 36 | 37 | 38 | $(ResonitePath)FrooxEngine.dll 39 | False 40 | 41 | 42 | $(ResonitePath)Elements.Core.dll 43 | False 44 | 45 | 46 | 47 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## 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2 | using System.Collections.Generic; 3 | using Elements.Core; 4 | using FrooxEngine; 5 | using FrooxEngine.FinalIK; 6 | using HarmonyLib; 7 | using ResoniteModLoader; 8 | 9 | namespace IkCulling 10 | { 11 | public class IkCulling : ResoniteMod 12 | { 13 | public static ModConfiguration Config; 14 | 15 | [AutoRegisterConfigKey] 16 | public static readonly ModConfigurationKey Enabled = 17 | new ModConfigurationKey( 18 | "Enabled", 19 | "Enabled", 20 | () => true); 21 | 22 | [AutoRegisterConfigKey] 23 | public static readonly ModConfigurationKey DummySpacer1 = 24 | new ModConfigurationKey( 25 | " ", 26 | ""); 27 | 28 | [AutoRegisterConfigKey] 29 | public static readonly ModConfigurationKey DummySpacer2 = 30 | new ModConfigurationKey( 31 | "DummySpacer2", 32 | "Culling Behavior Options:"); 33 | 34 | [AutoRegisterConfigKey] 35 | public static readonly ModConfigurationKey ScaleComp = 36 | new ModConfigurationKey( 37 | "ScaleComp", 38 | "Type of scale compensation used for distance checks.", 39 | () => ScaleCompType.None); 40 | 41 | [AutoRegisterConfigKey] 42 | public static readonly ModConfigurationKey FOV = 43 | new ModConfigurationKey( 44 | "FOV", 45 | "Enable to force specific culling FOV, automatic when disabled.", 46 | () => null, false, v => v <= 180 && v >= 0 || v == null); 47 | 48 | [AutoRegisterConfigKey] 49 | public static readonly ModConfigurationKey MinUserCount = 50 | new ModConfigurationKey( 51 | "MinUserCount", 52 | "Minimum amount of users in the world to enable culling.", 53 | () => 3, false, v => v >= 0); 54 | 55 | [AutoRegisterConfigKey] 56 | public static readonly ModConfigurationKey MinCullingRange = 57 | new ModConfigurationKey( 58 | "MinCullingRange", 59 | "Minimum range for IK to always be enabled, useful for mirrors.", 60 | () => 4f, false, v => v >= 0); 61 | 62 | [AutoRegisterConfigKey] 63 | public static readonly ModConfigurationKey MaxViewRange = 64 | new ModConfigurationKey( 65 | "MaxViewRange", 66 | "Maximum range before fully disabling IK.", 67 | () => 30f, false, v => v >= 0); 68 | 69 | [AutoRegisterConfigKey] 70 | public static readonly ModConfigurationKey DummySpacer3 = 71 | new ModConfigurationKey( 72 | " ", 73 | ""); 74 | 75 | [AutoRegisterConfigKey] 76 | public static readonly ModConfigurationKey DummySpacer4 = 77 | new ModConfigurationKey( 78 | "DummySpacer4", 79 | "Extra Culling Options:"); 80 | 81 | [AutoRegisterConfigKey] 82 | public static readonly ModConfigurationKey DisableAfkUser = 83 | new ModConfigurationKey( 84 | "DisableAfkUser", 85 | "Disable IK of users not in the session.", 86 | () => true); 87 | 88 | [AutoRegisterConfigKey] 89 | public static readonly ModConfigurationKey DisableIkWithoutUser = 90 | new ModConfigurationKey( 91 | "DisableIkWithoutUser", 92 | "Disable IK without an active user.", 93 | () => true); 94 | 95 | [AutoRegisterConfigKey] 96 | public static readonly ModConfigurationKey DisableOnDashboard = 97 | new ModConfigurationKey( 98 | "DisableOnInactiveUser", 99 | "Disable IK if the SteamVR/Oculus dash is open or the window is not focused on desktop mode.", 100 | () => true); 101 | 102 | [AutoRegisterConfigKey] 103 | public static readonly ModConfigurationKey DummySpacer5 = 104 | new ModConfigurationKey( 105 | " ", 106 | ""); 107 | 108 | [AutoRegisterConfigKey] 109 | public static readonly ModConfigurationKey DummySpacer6 = 110 | new ModConfigurationKey( 111 | "DummySpacer6", 112 | "Throttling Options:"); 113 | 114 | [AutoRegisterConfigKey] 115 | public static readonly ModConfigurationKey UpdateRate = 116 | new ModConfigurationKey( 117 | "UpdateRate", 118 | "Update rate for IK.", 119 | () => IkUpdateRate.Full); 120 | 121 | [FrooxEngine.Range(0, 100)] 122 | [AutoRegisterConfigKey] 123 | public static readonly ModConfigurationKey IkUpdateFalloff = 124 | new ModConfigurationKey( 125 | "IkUpdateFalloff", 126 | "Reduce IK updates based on distance, threshold is 0 - 100% relative to Max Range.", 127 | () => 50, false, v => v <= 100 && v >= 0); 128 | 129 | public override string Name => "ResoniteIkCulling"; 130 | public override string Author => "Raidriar796 & KyuubiYoru"; 131 | public override string Version => "2.7.0"; 132 | public override string Link => "https://github.com/Raidriar796/ResoniteIkCulling"; 133 | 134 | public override void OnEngineInit() 135 | { 136 | Harmony harmony = new Harmony("net.raidriar796.ResoniteIkCulling"); 137 | harmony.PatchAll(); 138 | Config = GetConfiguration(); 139 | Config.Save(true); 140 | 141 | Engine.Current.RunPostInit(() => 142 | { 143 | //Calling the methods on start instead of declaring the 144 | //variables with method calls because rml doesn't like that 145 | UpdateMinRange(); 146 | UpdateMaxRange(); 147 | UpdateFalloff(); 148 | 149 | // Engine.Current.InputInterface.VRActiveChanged += (value) => { UpdateFOV(); }; 150 | Engine.Current.WorldManager.WorldFocused += (value) => { UpdateFOV(); }; 151 | }); 152 | 153 | //Sets up variables to avoid redundant calculations per ik per frame 154 | //by saving the result of calculations that infrequently change 155 | FOV.OnChanged += (value) => { UpdateFOV(); }; 156 | MinCullingRange.OnChanged += (value) => { UpdateMinRange(); }; 157 | MaxViewRange.OnChanged += (value) => { UpdateMaxRange(); }; 158 | IkUpdateFalloff.OnChanged += (value) => { UpdateFalloff(); }; 159 | } 160 | 161 | //Variables 162 | private static float FOVDegToDot = 0f; 163 | private const float VRDegToDot = -0.1736482f; //MathX.Cos(MathX.Deg2Rad * 100.0f 164 | private static float MinCullingRangeSqr = 0f; 165 | private static float MaxViewRangeSqr = 0f; 166 | private static float PercentAsFloat = 0f; 167 | private static float Threshold = 0f; 168 | private static float FalloffStep1 = 0f; 169 | private static float FalloffStep2 = 0f; 170 | private static float FalloffStep3 = 0f; 171 | private static float FalloffStep4 = 0f; 172 | private static float FalloffStep5 = 0f; 173 | public enum ScaleCompType 174 | { 175 | None, 176 | Relative, 177 | YourUserScale, 178 | OtherUserScale 179 | } 180 | public enum IkUpdateRate 181 | { 182 | Full, 183 | Half, 184 | Quarter, 185 | Eighth 186 | } 187 | 188 | //Populated to every IK in dictionary. 189 | //We probably didn't need to do this, but in the event 190 | //that more variables per IK are needed, this is here. 191 | public class Variables 192 | { 193 | public byte UpdateIndex = 1; 194 | } 195 | 196 | public static void UpdateFOV() 197 | { 198 | if (!Config.GetValue(FOV).HasValue) 199 | { 200 | if (Engine.Current.WorldManager.FocusedWorld.LocalUser.GetScreen() == null) 201 | { 202 | //Value assigned when in VR 203 | FOVDegToDot = VRDegToDot; 204 | } 205 | else 206 | { 207 | //Value assigned when in desktop 208 | FOVDegToDot = MathX.Cos(MathX.Deg2Rad * Engine.Current.WorldManager.FocusedWorld.LocalUserDesktopFOV); 209 | } 210 | } 211 | else 212 | { 213 | //Value assigned when user manually specifies FOV 214 | FOVDegToDot = MathX.Cos(MathX.Deg2Rad * Config.GetValue(FOV).Value); 215 | } 216 | } 217 | 218 | public static void UpdateMinRange() 219 | { 220 | MinCullingRangeSqr = MathX.Pow(Config.GetValue(MinCullingRange), 2f); 221 | } 222 | 223 | public static void UpdateMaxRange() 224 | { 225 | MaxViewRangeSqr = MathX.Pow(Config.GetValue(MaxViewRange), 2f); 226 | } 227 | 228 | public static void UpdateFalloff() 229 | { 230 | PercentAsFloat = Config.GetValue(IkUpdateFalloff) * 0.01f; 231 | 232 | Threshold = MathX.Lerp(0f, Config.GetValue(MaxViewRange), PercentAsFloat); 233 | 234 | FalloffStep1 = MathX.Pow(Threshold, 2f); 235 | 236 | FalloffStep2 = MathX.Pow(MathX.Lerp(Threshold, Config.GetValue(MaxViewRange), 0.2f), 2f); 237 | 238 | FalloffStep3 = MathX.Pow(MathX.Lerp(Threshold, Config.GetValue(MaxViewRange), 0.4f), 2f); 239 | 240 | FalloffStep4 = MathX.Pow(MathX.Lerp(Threshold, Config.GetValue(MaxViewRange), 0.6f), 2f); 241 | 242 | FalloffStep5 = MathX.Pow(MathX.Lerp(Threshold, Config.GetValue(MaxViewRange), 0.8f), 2f); 243 | } 244 | 245 | static Dictionary vrikList = new Dictionary(); 246 | 247 | [HarmonyPatch("OnAwake")] 248 | [HarmonyPostfix] 249 | private static void AddToList(VRIKAvatar __instance) 250 | { 251 | //Adds IK to list as new instances appear 252 | if (!vrikList.ContainsKey(__instance)) 253 | { 254 | vrikList.Add(__instance, new Variables()); 255 | } 256 | 257 | foreach (var item in vrikList) 258 | { 259 | if (item.Key == null) 260 | { 261 | vrikList.Remove(item.Key); 262 | } 263 | } 264 | } 265 | 266 | [HarmonyPatch(typeof(VRIKAvatar))] 267 | public class IkCullingPatch 268 | { 269 | [HarmonyPrefix] 270 | [HarmonyPatch("OnCommonUpdate")] 271 | private static bool OnCommonUpdatePrefix(VRIKAvatar __instance) 272 | { 273 | try 274 | { 275 | //IkCulling is disabled 276 | if (!Config.GetValue(Enabled)) return true; 277 | 278 | //Ik is disabled 279 | if (!__instance.Enabled) return false; 280 | 281 | //User is Headless 282 | if (ModLoader.IsHeadless) return false; 283 | 284 | //Always skip local Ik 285 | if (__instance.IsUnderLocalUser && __instance.IsEquipped) return true; 286 | 287 | //Too few users 288 | if (__instance.Slot.World.UserCount < Config.GetValue(MinUserCount)) return true; 289 | 290 | //Platform dash is open or user is not focused on window 291 | if (Config.GetValue(DisableOnDashboard)) 292 | { 293 | if (__instance.LocalUser.VR_Active) 294 | { 295 | if (__instance.LocalUser.IsPlatformDashOpened) return false; 296 | } 297 | else 298 | { 299 | if (!Engine.Current.InputInterface.IsWindowFocused) return false; 300 | } 301 | } 302 | 303 | //No active user 304 | if (Config.GetValue(DisableIkWithoutUser) && !__instance.IsEquipped) return false; 305 | 306 | //Users not present 307 | if (Config.GetValue(DisableAfkUser) && __instance.Slot.ActiveUser != null && 308 | !__instance.Slot.ActiveUser.IsPresentInWorld) return false; 309 | 310 | float3 playerPos = __instance.Slot.World.LocalUserViewPosition; 311 | float3 ikPos = __instance.HeadProxy.GlobalPosition; 312 | 313 | float dist = MathX.DistanceSqr(playerPos, ikPos); 314 | 315 | float LocalUserScale = __instance.LocalUserRoot.GlobalScale; 316 | 317 | switch (Config.GetValue(ScaleComp)) 318 | { 319 | case ScaleCompType.None: 320 | break; 321 | 322 | case ScaleCompType.Relative: 323 | dist /= LocalUserScale * LocalUserScale; 324 | if (__instance.IsEquipped) 325 | { 326 | dist /= __instance.Slot.ActiveUser.Root.GlobalScale * __instance.Slot.ActiveUser.Root.GlobalScale; 327 | } 328 | break; 329 | 330 | case ScaleCompType.YourUserScale: 331 | dist /= LocalUserScale * LocalUserScale; 332 | break; 333 | 334 | case ScaleCompType.OtherUserScale: 335 | if (__instance.IsEquipped) 336 | { 337 | dist /= __instance.Slot.ActiveUser.Root.GlobalScale * __instance.Slot.ActiveUser.Root.GlobalScale; 338 | } 339 | break; 340 | 341 | default: 342 | break; 343 | } 344 | 345 | //Checks if IK is within min range and in view 346 | if (dist > MinCullingRangeSqr && 347 | MathX.Dot((ikPos - playerPos).Normalized, __instance.Slot.World.LocalUserViewRotation * float3.Forward) < FOVDegToDot) 348 | return false; 349 | 350 | //Check if IK is outside of max range 351 | if (dist > MaxViewRangeSqr) 352 | return false; 353 | 354 | //IK throttling 355 | if ((Config.GetValue(IkUpdateFalloff) < 100) || 356 | (Config.GetValue(UpdateRate) != IkUpdateRate.Full)) 357 | { 358 | //Adds an IK instance to the list if it's not already 359 | if (!vrikList.ContainsKey(__instance)) 360 | { 361 | vrikList.Add(__instance, new Variables()); 362 | return true; 363 | } 364 | byte skipCount = 1; 365 | 366 | //Update skips for falloff 367 | if (Config.GetValue(IkUpdateFalloff) < 100) 368 | { 369 | if (dist > FalloffStep5) 370 | { 371 | skipCount = 6; 372 | } 373 | else if (dist > FalloffStep4) 374 | { 375 | skipCount = 5; 376 | } 377 | else if (dist > FalloffStep3) 378 | { 379 | skipCount = 4; 380 | } 381 | else if (dist > FalloffStep2) 382 | { 383 | skipCount = 3; 384 | } 385 | else if (dist > FalloffStep1) 386 | { 387 | skipCount = 2; 388 | } 389 | } 390 | 391 | //Update skips lower update rate 392 | else switch (Config.GetValue(UpdateRate)) 393 | { 394 | case IkUpdateRate.Half: 395 | skipCount = 2; 396 | break; 397 | 398 | case IkUpdateRate.Quarter: 399 | skipCount = 4; 400 | break; 401 | 402 | case IkUpdateRate.Eighth: 403 | skipCount = 8; 404 | break; 405 | 406 | default: 407 | skipCount = 1; 408 | break; 409 | } 410 | 411 | //Update skips for falloff + lower update rate 412 | if (Config.GetValue(UpdateRate) != IkUpdateRate.Full && (Config.GetValue(IkUpdateFalloff) < 100)) 413 | { 414 | switch (Config.GetValue(UpdateRate)) 415 | { 416 | case IkUpdateRate.Half: 417 | skipCount *= 2; 418 | break; 419 | 420 | case IkUpdateRate.Quarter: 421 | skipCount *= 4; 422 | break; 423 | 424 | case IkUpdateRate.Eighth: 425 | skipCount *= 8; 426 | break; 427 | 428 | default: 429 | skipCount = 1; 430 | break; 431 | } 432 | } 433 | //The part that actually skips updates 434 | if (vrikList[__instance].UpdateIndex > skipCount) vrikList[__instance].UpdateIndex = 1; 435 | if (vrikList[__instance].UpdateIndex == skipCount) 436 | { 437 | vrikList[__instance].UpdateIndex = 1; 438 | return true; 439 | } 440 | else 441 | { 442 | vrikList[__instance].UpdateIndex += 1; 443 | return false; 444 | } 445 | } 446 | } 447 | catch (Exception e) 448 | { 449 | Msg("Error OnCommonUpdatePatch"); 450 | Debug(e.Message); 451 | Debug(e.StackTrace); 452 | return true; 453 | } 454 | return true; 455 | } 456 | } 457 | 458 | //Used to search through the entire FBT calibrator to enable "AutoUpdate" on every IK 459 | public static void CalibratorForceIkAutoUpdate(FullBodyCalibrator __instance) 460 | { 461 | var allVRIK = __instance.Slot.GetComponentsInChildren(); 462 | foreach (var vrik in allVRIK) 463 | { 464 | vrik.AutoUpdate.Value = true; 465 | } 466 | } 467 | 468 | //Forces IK to be active when FBT calibrator is created 469 | [HarmonyPatch(typeof(FullBodyCalibrator), "OnAwake")] 470 | class FullBodyCalibratorPatch 471 | { 472 | static void Postfix(FullBodyCalibrator __instance) 473 | { 474 | __instance.RunInUpdates(3, () => 475 | { 476 | CalibratorForceIkAutoUpdate(__instance); 477 | }); 478 | } 479 | } 480 | 481 | //Forces IK to be active when pressing "Calibrate Avatar" on the FBT calibrator 482 | [HarmonyPatch(typeof(FullBodyCalibrator), "CalibrateAvatar")] 483 | class FullBodyCalibratorAvatarPatch 484 | { 485 | static void Postfix(FullBodyCalibrator __instance) 486 | { 487 | CalibratorForceIkAutoUpdate(__instance); 488 | } 489 | } 490 | } 491 | } 492 | --------------------------------------------------------------------------------