KSP-RO · siimav · Jun 5, 2026 · Mar 30, 2026 · Jun 5, 2026
diff --git a/.github/workflows/attachReleaseArtifacts.yml b/.github/workflows/attachReleaseArtifacts.yml
@@ -5,6 +5,9 @@ on:
   release:
     types: [published]
 
+env:
+  KSP_ROOT: /tmp/ksp
+
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   attach-release-artifacts:
@@ -27,16 +30,14 @@ jobs:
 
       - name: Download required assemblies
         id: download-assemblies
-        shell: bash
-        env:
+        uses: KSP-RO/BuildTools/download-assemblies-v2@master
+        with:
           KSP_ZIP_PASSWORD: ${{ secrets.KSP_ZIP_PASSWORD }}
-        run: |
-          curl https://ksp-ro.s3-us-west-2.amazonaws.com/KSPAssemblies-1.12.zip --output /tmp/bins.zip
-          KSP_DLL_PATH="/opt/ksp/assembly"
-          echo "::set-output name=ksp-dll-path::${KSP_DLL_PATH}"
-          mkdir -p "${KSP_DLL_PATH}"
-          unzip -P "${KSP_ZIP_PASSWORD}" '/tmp/bins.zip' -d "${KSP_DLL_PATH}"
-          rm '/tmp/bins.zip'
+          dependency-identifiers: |
+            Harmony2
+            Kopernicus
+            KSPBurst-Lite
+            BurstPQS
 
       - name: Build mod solution
         env:
@@ -63,8 +64,7 @@ jobs:
           grep AssemblyFileVersion ${GITHUB_WORKSPACE}/Source/Properties/AssemblyInfo.cs
 
           rm -f ${GITHUB_WORKSPACE}/GameData/RealSolarSystem/Plugins/*.dll
-          msbuild /p:Configuration=Release /p:ReferencePath="${{ steps.download-assemblies.outputs.ksp-dll-path }}" ${GITHUB_WORKSPACE}/Source/RealSolarSystem.sln
-          cp -v ${GITHUB_WORKSPACE}/Source/obj/Release/RealSolarSystem.dll ${GITHUB_WORKSPACE}/GameData/RealSolarSystem/Plugins/RealSolarSystem.dll
+          msbuild /p:Configuration=Release /p:ReferencePath="${{ steps.download-assemblies.outputs.ksp-dll-path }}" /p:KSPRoot="${{ env.KSP_ROOT }}" ${GITHUB_WORKSPACE}/Source/RealSolarSystem.sln
 
       - name: Remove excess DLLs
         uses: KSP-RO/BuildTools/remove-excess-dlls@master

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -13,6 +13,9 @@ on:
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
+env:
+  KSP_ROOT: /tmp/ksp
+
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   check-secret:
@@ -49,22 +52,19 @@ jobs:
 
       - name: Download required assemblies
         id: download-assemblies
-        shell: bash
-        env:
+        uses: KSP-RO/BuildTools/download-assemblies-v2@master
+        with:
           KSP_ZIP_PASSWORD: ${{ secrets.KSP_ZIP_PASSWORD }}
-        run: |
-          curl https://ksp-ro.s3-us-west-2.amazonaws.com/KSPAssemblies-1.12.zip --output /tmp/bins.zip
-          KSP_DLL_PATH="/opt/ksp/assembly"
-          echo "::set-output name=ksp-dll-path::${KSP_DLL_PATH}"
-          mkdir -p "${KSP_DLL_PATH}"
-          unzip -P "${KSP_ZIP_PASSWORD}" '/tmp/bins.zip' -d "${KSP_DLL_PATH}"
-          rm '/tmp/bins.zip'
+          dependency-identifiers: |
+            Harmony2
+            Kopernicus
+            KSPBurst-Lite
+            BurstPQS
 
       - name: Build mod solution
         run: |
           rm -f ${GITHUB_WORKSPACE}/GameData/RealSolarSystem/Plugins/*.dll
-          msbuild /p:Configuration=Release /p:ReferencePath="${{ steps.download-assemblies.outputs.ksp-dll-path }}" ${GITHUB_WORKSPACE}/Source/RealSolarSystem.sln
-          cp -v ${GITHUB_WORKSPACE}/Source/obj/Release/RealSolarSystem.dll ${GITHUB_WORKSPACE}/GameData/RealSolarSystem/Plugins/RealSolarSystem.dll
+          msbuild /p:Configuration=Release /p:ReferencePath="${{ steps.download-assemblies.outputs.ksp-dll-path }}" /p:KSPRoot="${{ env.KSP_ROOT }}" ${GITHUB_WORKSPACE}/Source/RealSolarSystem.sln
 
       - name: Remove excess DLLs
         uses: KSP-RO/BuildTools/remove-excess-dlls@master

diff --git a/Source/RealSolarSystem.BurstPQS/BatchPQSMod_VertexDefineCoastSmooth.cs b/Source/RealSolarSystem.BurstPQS/BatchPQSMod_VertexDefineCoastSmooth.cs
@@ -0,0 +1,52 @@
+using System;
+using BurstPQS;
+using BurstPQS.Util;
+using RealSolarSystem;
+using Unity.Burst;
+
+[BurstCompile]
+[BatchPQSMod(typeof(PQSMod_VertexDefineCoastSmooth))]
+public class BatchPQSMod_VertexDefineCoastSmooth : BatchPQSMod<PQSMod_VertexDefineCoastSmooth>
+{
+    public BatchPQSMod_VertexDefineCoastSmooth(PQSMod_VertexDefineCoastSmooth mod) : base(mod)
+    {
+    }
+
+    public override void OnQuadPreBuild(PQ quad, BatchPQSJobSet jobSet)
+    {
+        base.OnQuadPreBuild(quad, jobSet);
+        jobSet.Add(new BuildJob
+        {
+            minHeightOffset = Mod.minHeightOffset,
+            maxHeightOffset = Mod.maxHeightOffset,
+            slopeScale = Mod.slopeScale,
+        });
+    }
+
+    [BurstCompile]
+    struct BuildJob : IBatchPQSHeightJob
+    {
+        public double minHeightOffset;
+        public double maxHeightOffset;
+        public double slopeScale;
+
+        public void BuildHeights(in BuildHeightsData data)
+        {
+            var minHeight = data.sphere.radius + minHeightOffset;
+            var maxHeight = data.sphere.radius + maxHeightOffset;
+
+            for (int i = 0; i < data.VertexCount; ++i)
+            {
+                if (data.vertHeight[i] > minHeight && data.vertHeight[i] < maxHeight)
+                {
+                    // 7th order polynomial smoothstep.
+                    double x = (data.vertHeight[i] - minHeight) / (maxHeight - minHeight);
+                    x = MathUtil.Clamp01((x - 0.5) * slopeScale + 0.5);
+                    double y = -20.0 * Math.Pow(x, 7.0) + 70 * Math.Pow(x, 6.0) - 84.0 * Math.Pow(x, 5.0) +
+                               35.0 * Math.Pow(x, 4.0);
+                    data.vertHeight[i] = y * (maxHeight - minHeight) + minHeight;
+                }
+            }
+        }
+    }
+}
diff --git a/Source/RealSolarSystem.BurstPQS/Properties/AssemblyInfo.cs b/Source/RealSolarSystem.BurstPQS/Properties/AssemblyInfo.cs
@@ -0,0 +1,46 @@
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("RealSolarSystem.BurstPQS")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("RealSolarSystem.BurstPQS")]
+[assembly: AssemblyCopyright("Copyright ©  2026, KSP-RO Team")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("40818121-9CD4-4452-8583-CDFD7528724F")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+#if CIBUILD
+[assembly: AssemblyVersion("@MAJOR@.@MINOR@.@PATCH@.@BUILD@")]
+[assembly: AssemblyFileVersion("@MAJOR@.@MINOR@.@PATCH@.@BUILD@")]
+[assembly: KSPAssembly("RealSolarSystem.BurstPQS", @MAJOR@, @MINOR@)]
+[assembly: KSPAssemblyDependency("RealSolarSystem", @MAJOR@, @MINOR@)]
+#else
+[assembly: AssemblyVersion("18.5.0.0")]
+[assembly: AssemblyFileVersion("18.5.0.0")]
+[assembly: KSPAssembly("RealSolarSystem.BurstPQS", 21, 0, 0)]
+[assembly: KSPAssemblyDependency("RealSolarSystem", 21, 0, 0)]
+#endif
+
+[assembly: KSPAssemblyDependency("BurstPQS", 0, 1)]
diff --git a/Source/RealSolarSystem.BurstPQS/RealSolarSystem.BurstPQS.csproj b/Source/RealSolarSystem.BurstPQS/RealSolarSystem.BurstPQS.csproj
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{40818121-9CD4-4452-8583-CDFD7528724F}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>RealSolarSystem.BurstPQS</RootNamespace>
+    <AssemblyName>RealSolarSystem.BurstPQS</AssemblyName>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>portable</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>..\..\GameData\RealSolarSystem\Plugins</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>none</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>..\..\GameData\RealSolarSystem\Plugins</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <KSPRoot Condition=" '$(KSPRoot)' == '' ">
+      $(ReferencePath.TrimEnd([System.IO.Path]::DirectorySeparatorChar))</KSPRoot>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/System.dll">
+      <HintPath>$(ReferencePath)/System.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/System.Core.dll">
+      <HintPath>$(ReferencePath)/System.Core.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/Assembly-CSharp.dll">
+      <HintPath>$(ReferencePath)/Assembly-CSharp.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/UnityEngine.dll">
+      <HintPath>$(ReferencePath)/UnityEngine.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/UnityEngine.CoreModule.dll">
+      <HintPath>$(ReferencePath)/UnityEngine.CoreModule.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="$(KSPRoot)/GameData/000_KSPBurst/Plugins/Unity.Burst.dll">
+      <HintPath>$(ReferencePath)/Unity.Burst.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="$(KSPRoot)/GameData/BurstPQS/Plugins/BurstPQS.dll">
+      <HintPath>$(ReferencePath)/BurstPQS.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="BatchPQSMod_VertexDefineCoastSmooth.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\RealSolarSystem.csproj">
+      <Project>{685bbbd5-86fa-43b0-bcad-72328d37ac94}</Project>
+      <Name>RealSolarSystem</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
diff --git a/Source/RealSolarSystem.csproj b/Source/RealSolarSystem.csproj
@@ -56,35 +56,49 @@
     <Compile Include="VesselGroundPositionEnhancer.cs" />
     <Compile Include="Watchdogs.cs" />
   </ItemGroup>
+  <PropertyGroup>
+    <KSPRoot Condition=" '$(KSPRoot)' == '' ">
+      $(ReferencePath.TrimEnd([System.IO.Path]::DirectorySeparatorChar))</KSPRoot>
+  </PropertyGroup>
   <ItemGroup>
-    <Reference Include="0Harmony">
+    <Reference Include="$(KSPRoot)/GameData/000_Harmony/0Harmony.dll">
+      <HintPath>$(ReferencePath)/0Harmony.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="Assembly-CSharp">
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/Assembly-CSharp.dll">
+      <HintPath>$(ReferencePath)/Assembly-CSharp.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="Kopernicus">
+    <Reference Include="$(KSPRoot)/GameData/Kopernicus/Plugins/Kopernicus.dll">
+      <HintPath>$(ReferencePath)/Kopernicus.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="Kopernicus.Parser">
+    <Reference Include="$(KSPRoot)/GameData/Kopernicus/Plugins/Kopernicus.Parser.dll">
+      <HintPath>$(ReferencePath)/Kopernicus.Parser.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="System">
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/System.dll">
+      <HintPath>$(ReferencePath)/System.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="UnityEngine">
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/UnityEngine.dll">
+      <HintPath>$(ReferencePath)/UnityEngine.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/UnityEngine.CoreModule.dll">
+      <HintPath>$(ReferencePath)/UnityEngine.CoreModule.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="UnityEngine.IMGUIModule, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/UnityEngine.IMGUIModule.dll">
+      <HintPath>$(ReferencePath)/UnityEngine.IMGUIModule.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="UnityEngine.InputLegacyModule, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/UnityEngine.InputLegacyModule.dll">
+      <HintPath>$(ReferencePath)/UnityEngine.InputLegacyModule.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="UnityEngine.PhysicsModule, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+    <Reference Include="$(KSPRoot)/KSP_x64_Data/Managed/UnityEngine.PhysicsModule.dll">
+      <HintPath>$(ReferencePath)/UnityEngine.PhysicsModule.dll</HintPath>
       <Private>False</Private>
     </Reference>
   </ItemGroup>

diff --git a/Source/RealSolarSystem.sln b/Source/RealSolarSystem.sln
@@ -5,6 +5,8 @@ VisualStudioVersion = 15.0.28010.2048
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RealSolarSystem", "RealSolarSystem.csproj", "{685BBBD5-86FA-43B0-BCAD-72328D37AC94}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RealSolarSystem.BurstPQS", "RealSolarSystem.BurstPQS\RealSolarSystem.BurstPQS.csproj", "{40818121-9CD4-4452-8583-CDFD7528724F}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{685BBBD5-86FA-43B0-BCAD-72328D37AC94}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{685BBBD5-86FA-43B0-BCAD-72328D37AC94}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{685BBBD5-86FA-43B0-BCAD-72328D37AC94}.Release|Any CPU.Build.0 = Release|Any CPU
+		{40818121-9CD4-4452-8583-CDFD7528724F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{40818121-9CD4-4452-8583-CDFD7528724F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{40818121-9CD4-4452-8583-CDFD7528724F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{40818121-9CD4-4452-8583-CDFD7528724F}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE