Add GBS import/export plugins. Fix VC redist installation error in patcher.

GPatch/GPatch.nsi

@@ -42,7 +42,7 @@ SetCompressor /SOLID lzma
 ; MUI end ------
 
 Name "${PRODUCT_NAME} ${PRODUCT_VERSION}"
-OutFile "Output\GPatch1_498_222_0.exe"
+OutFile "Output\GPatch1_498_224_0.exe"
 InstallDir "$PROGRAMFILES\Giants\"
 InstallDirRegKey HKCU "SOFTWARE\PlanetMoon\Giants" "DestDir"
 ShowInstDetails hide
@@ -69,7 +69,8 @@ Section
   
   ExecWait "$INSTDIR\Redist\VC_redist.x86.exe /install /passive /norestart" $0
   ${If} $0 != 0
-	MessageBox MB_OK "Setup failed to install the Visual C++ Runtime. Please visit www.microsoft.com and download the latest version of the Visual C++ redistributable."
+  ${AndIf} $0 != 1638 ;0x666 - Newer version installed
+	MessageBox MB_OK "Setup failed to install the Visual C++ Runtime. Please visit www.microsoft.com and download the latest version of the Visual C++ 2019 redistributable."
   ${EndIf}
 
   RMDir /r "$INSTDIR\Redist" ; Delete temporary files
@@ -96,8 +97,6 @@ Section
   Delete $INSTDIR\bin\worldlist5.bin
   Delete $INSTDIR\bin\mappack1.gzp
   Delete $INSTDIR\bin\A-GRM1.gzp
-  Delete $INSTDIR\bin\GData.gbt
-  Delete $INSTDIR\bin\GData.h
   
 SectionEnd
 

Plugins/imp_gbs/DLLEntry.cpp

@@ -0,0 +1,43 @@
+#include "Importer.h"
+
+HINSTANCE hInstance;
+int controlsInit = FALSE;
+
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL,ULONG fdwReason,LPVOID lpvReserved)
+{
+	hInstance = hinstDLL;				// Hang on to this DLL's instance handle.
+
+	if (!controlsInit) {
+		controlsInit = TRUE;
+		//InitCustomControls(hInstance);	// Initialize MAX's custom controls
+		InitCommonControls();			// Initialize Win95 controls
+	}
+
+	return (TRUE);
+}
+
+__declspec( dllexport ) const TCHAR* LibDescription()
+{
+	return _T("LibDescription");
+}
+
+//TODO: Must change this number when adding a new class
+__declspec( dllexport ) int LibNumberClasses()
+{
+	return 1;
+}
+
+ClassDesc *GetSceneImportDesc();
+__declspec( dllexport ) ClassDesc* LibClassDesc(int i)
+{
+	switch(i) {
+		case 0: return GetSceneImportDesc();
+		default: return 0;
+	}
+}
+
+__declspec( dllexport ) ULONG LibVersion()
+{
+	return VERSION_3DSMAX;
+}

Plugins/imp_gbs/GbsData.cpp

@@ -0,0 +1,143 @@
+#include "Importer.h"
+
+void GbsData::Read(FILE* file)
+{
+    DWORD versionHeader;
+    fread(&versionHeader, 4, 1, file);
+    if (versionHeader != GBS_VERSION)
+    {
+        throw std::exception("File does not appear to be a GBS file.");
+    }
+
+    fread(&optionsflags, 4, 1, file);
+    fread(&naverts, 4, 1, file);
+
+    averts.resize(naverts);
+    for (int i = 0; i < naverts; i++)
+    {
+        fread(&averts.at(i).x, 4, 1, file);
+        fread(&averts.at(i).y, 4, 1, file);
+        fread(&averts.at(i).z, 4, 1, file);
+    }
+    if (FlagIsSet(optionsflags, GBSFlagNormals))
+    {
+        fread(&nndefs, 4, 1, file);
+        fread(&sizendefs, 4, 1, file);
+        ndefs.resize(sizendefs);
+
+        for (uint i = 0; i < sizendefs; i++)
+            fread(&ndefs.at(i), 2, 1, file);
+    }
+
+    fread(&nverts, 4, 1, file);
+    iverts.resize(nverts);
+    for (int i = 0; i < nverts; i++)
+        fread(&iverts.at(i), 2, 1, file);
+
+    if (FlagIsSet(optionsflags, GBSFlagNormals))
+    {
+        inorms.resize(nverts);
+        for (int i = 0; i < nverts; i++)
+            fread(&inorms.at(i), 2, 1, file);
+    }
+
+    if (FlagIsSet(optionsflags, GBSFlagUVs))
+    {
+        vertuv.resize(nverts);
+        for (int i = 0; i < nverts; i++)
+        {
+            fread(&vertuv.at(i).u, 4, 1, file);
+            fread(&vertuv.at(i).v, 4, 1, file);
+            vertuv.at(i).v = vertuv.at(i).v + 1.0f;
+        }
+    }
+
+    if (FlagIsSet(optionsflags, GBSFlagRGBs))
+    {
+        vertrgb.resize(nverts);
+        for (int i = 0; i < nverts; i++)
+        {
+            fread(&vertrgb.at(i).r, 1, 1, file);
+            fread(&vertrgb.at(i).g, 1, 1, file);
+            fread(&vertrgb.at(i).b, 1, 1, file);
+        }
+    }
+
+    // Get number of max objects
+    fread(&nmobjs, 4, 1, file);
+    MaxObjs.resize(nmobjs);
+    for (auto& maxObj : MaxObjs)
+    {
+        FileMaxObj fileMaxObj;
+        fread(&fileMaxObj, sizeof(FileMaxObj), 1, file);
+
+        maxObj.vstart = fileMaxObj.vstart;
+        maxObj.vcount = fileMaxObj.vcount;
+        maxObj.nstart = fileMaxObj.nstart;
+        maxObj.ncount = fileMaxObj.ncount;
+        maxObj.noffset = fileMaxObj.noffset;
+        maxObj.fstart = 0;
+        maxObj.fcount = 0;
+        maxObj.sostart = 0;
+        maxObj.socount = 0;
+    }
+
+    VerifyMaxObjs();
+
+    // Get number of subobjects
+    fread(&nsobjs, 4, 1, file);
+
+    SubObjs.resize(nsobjs);
+    for (int ns = 0; ns < nsobjs; ns++)
+    {
+        SubObject& object = SubObjs.at(ns);
+        fread(&object.objname, sizeof(object.objname), 1, file);
+        fread(&object.maxobjindex, 4, 1, file);
+        fread(&object.totaltris, 4, 1, file);
+        fread(&object.ntris, 4, 1, file);
+
+        assert((object.ntris - 1) / 3 == object.totaltris);
+
+        object.tridata.resize(object.ntris + 1);
+        fread(object.tridata.data(), sizeof(unsigned short) * object.ntris, 1, file);
+
+        fread(&object.vstart, 4, 1, file);
+        fread(&object.vcount, 4, 1, file);
+        if (FlagIsSet(optionsflags, GBSFlagUVs))
+        {
+            fread(&object.texname, 1, 32, file);
+            fread(&object.texname2, 1, 32, file);
+        }
+        fread(&object.falloff, 4, 1, file);
+
+        if (FlagIsSet(optionsflags, GBSFlagRGBs))
+            fread(&object.blend, 4, 1, file);
+
+        fread(&object.flags, 4, 1, file);
+        fread(&object.emissive, 1, 4, file);
+        fread(&object.ambient, 1, 4, file);
+        fread(&object.diffuse, 1, 4, file);
+        fread(&object.specular, 1, 4, file);
+        fread(&object.power, 4, 1, file);
+
+        MaxObj& maxobj = MaxObjs.at(object.maxobjindex);
+        maxobj.fcount += object.totaltris;
+        if (!maxobj.socount)
+        {
+            maxobj.sostart = ns;
+        }
+        maxobj.socount++;
+    }
+}
+
+bool GbsData::VerifyMaxObjs()
+{
+    int nmcount = 0;
+    for (const auto& maxObj : MaxObjs)
+    {
+        nmcount += maxObj.vcount;
+    }
+
+    assert(nmcount == naverts);
+    return nmcount == naverts;
+}

Plugins/imp_gbs/GbsData.h

@@ -0,0 +1,77 @@
+#pragma once
+
+#define GBS_VERSION 0xaa0100be
+#define GBSFlagNormals	0x0001
+#define GBSFlagUVs		0x0002
+#define GBSFlagRGBs		0x0004
+#define GBSFlagMaxLit	(1 << 31)
+
+struct FileMaxObj
+{
+	int		vstart;
+	int		vcount;
+	int		nstart;
+	int		ncount;
+	int		noffset;
+};
+
+struct MaxObj : FileMaxObj
+{
+	int		fstart;
+	int		fcount;
+	int		sostart;
+	int		socount;
+};
+
+struct SubObject
+{
+	char objname[32];
+	DWORD maxobjindex;
+	int ntris; // count of tridata (including preceding 'count' short)
+	int totaltris;
+	std::vector<unsigned short> tridata; // indexed tridata, value is pointer to iverts
+	int vstart;
+	int vcount;
+	char texname[32];
+	char texname2[32];
+	float falloff;
+	float blend;
+	DWORD flags;
+	DWORD emissive;
+	DWORD ambient;
+	DWORD diffuse;
+	DWORD specular;
+	float power;
+};
+
+enum TransType
+{
+	TransNone,
+	TransAdd,
+	TransSub,
+	TransBlend
+};
+
+struct GbsData
+{
+public:
+	void Read(FILE* file);
+
+	DWORD optionsflags{};
+	DWORD nndefs{};
+	DWORD sizendefs{};
+	std::vector<WORD> ndefs;
+	std::vector<USHORT> inorms;
+	int naverts{};
+	std::vector<Point3> averts;
+	int nsobjs{};
+	int nmobjs{};
+	std::vector<USHORT> iverts;
+	std::vector<VertRGB> vertrgb;
+	int nverts{};
+	std::vector<UV> vertuv;
+	std::vector<MaxObj> MaxObjs;
+	std::vector<SubObject> SubObjs;
+private:
+	bool VerifyMaxObjs();
+};

Plugins/imp_gbs/Importer.cpp

@@ -0,0 +1,409 @@
+// Importer.cpp : Defines the entry point for the DLL application.
+//
+
+#include "Importer.h"
+#include "StdUtil.h"
+
+class ImpGbsClassDesc :
+    public ClassDesc2
+{
+public:
+    int			IsPublic() { return TRUE; }
+    VOID* Create(BOOL Loading) { return new GbsImporter; }
+    const MCHAR* ClassName() { return _M("ClassName"); }
+    SClass_ID	SuperClassID() { return SCENE_IMPORT_CLASS_ID; }
+    Class_ID	ClassID() { return GIANTSIMP_CLASSID; }
+    const MCHAR* Category() { return _M(""); }
+    const MCHAR* InternalName() { return _M("GiantsImp"); }
+    HINSTANCE	HInstance() { return hInstance; }
+};
+
+static ImpGbsClassDesc g_ImportCD;
+
+ClassDesc* GetSceneImportDesc()
+{
+    return &g_ImportCD;
+}
+
+void DisplayMessage(const char* msg)
+{
+    MessageBoxA(GetActiveWindow(), msg, "GBS Import Error", MB_OK);
+}
+
+int GbsImporter::ExtCount()
+{
+    return 1;
+}
+
+const MCHAR* GbsImporter::Ext(int n)
+{
+    switch (n)
+    {
+        case 0:
+            return _M("gbs");
+        default:
+            return (_M(""));
+    }
+}
+
+const MCHAR* GbsImporter::LongDesc()
+{
+    return _M("Long Description");
+}
+
+const MCHAR* GbsImporter::ShortDesc()
+{
+    return _M("Giants Model");
+}
+
+const MCHAR* GbsImporter::AuthorName()
+{
+    return _M("Author");
+}
+
+const MCHAR* GbsImporter::CopyrightMessage()
+{
+    return _M("Copyright");
+}
+
+const MCHAR* GbsImporter::OtherMessage1()
+{
+    return _M("OtherMessage1");
+}
+
+const MCHAR* GbsImporter::OtherMessage2()
+{
+    return _M("OtherMessage2");
+}
+
+UINT GbsImporter::Version()
+{
+    return 100;
+}
+
+static BOOL CALLBACK AboutDlgProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
+{
+    return FALSE;
+}
+
+VOID GbsImporter::ShowAbout(HWND hWnd)
+{
+}
+
+bool GbsImporter::EvaluateTriData(unsigned short** pTriData, unsigned short* pTriIdx, unsigned short* acount, int* pV1, int* pV2, int* pV3)
+{
+    unsigned short* triData = *pTriData;
+    unsigned short triIdx = *pTriIdx;
+    unsigned short count = *acount;
+
+    if (!count)
+    {
+        if (!(count = *triData))
+        {
+            return false;
+        }
+
+        triIdx = 0;
+    }
+
+    *pV1 = triData[triIdx + 1];
+    *pV2 = triData[triIdx + 2];
+    *pV3 = triData[triIdx + 3];
+    triIdx += 3;
+
+    if (!--count)
+    {
+        triData += *triData * 3 + 1;
+    }
+
+    *pTriData = triData;
+    *pTriIdx = triIdx;
+    *acount = count;
+
+    return true;
+}
+
+int GbsImporter::DoImport(const MCHAR* Name, ImpInterface* EI, Interface* I, BOOL SupressPrompts)
+{
+    try
+    {
+        m_gbsData = ReadGbsFile(Name);
+    }
+    catch (const std::exception& e)
+    {
+        DisplayMessage(e.what());
+    }
+
+    BuildMeshes(EI);
+    EI->RedrawViews();
+
+    return TRUE;
+}
+
+GbsData GbsImporter::ReadGbsFile(const MCHAR* Name)
+{
+    FILE* file = nullptr;
+    try
+    {
+        errno_t err = _tfopen_s(&file, Name, (_T("rb")));
+        if (err != 0)
+        {
+            throw std::exception("Could not open input file.");
+        }
+
+        // Read object into memory
+        GbsData gbsFile;
+        gbsFile.Read(file);
+
+        fclose(file);
+        return gbsFile;
+    }
+    catch (const std::exception& e)
+    {
+        if (file)
+            fclose(file);
+
+        throw e;
+    }
+}
+
+int GbsImporter::GetLocalVertex(Point3* avert, const Mesh& mesh)
+{
+    for (int i = 0; i < mesh.getNumVerts(); i++)
+    {
+        auto& vert = mesh.verts[i];
+
+        if (vert.x == avert->x && vert.y == avert->y && vert.z == avert->z)
+        {
+            return i;
+        }
+    }
+
+    assert(false && "Invalid vertex for object");
+    return -1;
+}
+
+void GbsImporter::BuildMeshes(ImpInterface* EI)
+{
+    for (const auto& mobj : m_gbsData.MaxObjs)
+    {
+        assert(mobj.fcount > 0);
+        assert(mobj.vcount > 0);
+
+        Mesh mesh;
+        mesh.setNumVerts(mobj.vcount);
+        mesh.setNumTVerts(mobj.vcount);
+        mesh.setNumVertCol(mobj.vcount);
+        mesh.setNumFaces(mobj.fcount);
+        mesh.setNumTVFaces(mobj.fcount);
+        mesh.setNumVCFaces(mobj.fcount);
+
+        for (int i = 0; i < mobj.vcount; i++)
+        {
+            int vstart = mobj.vstart;
+            int index = i + vstart;
+            assert(index < m_gbsData.naverts);
+
+            UV* uvptr = (UV*)(m_gbsData.vertuv.data() + (mobj.vstart + i));
+
+            Point3 point(m_gbsData.averts[index].x, m_gbsData.averts[index].y, m_gbsData.averts[index].z);
+
+            mesh.setVert(i, point);
+            mesh.setTVert(i, UVVert(uvptr->u, uvptr->v, 0.0f));
+            //mesh.setTVert(i, UVVert(uvptr->u, -uvptr->v, 0.0f));
+        }
+
+        Mtl* topLevelMaterial = nullptr;
+        const char* objName = nullptr;
+        int materialLevel = 0;
+
+        int faceIndex = 0;
+        for (int subObjIndex = mobj.sostart; subObjIndex < mobj.sostart + mobj.socount; subObjIndex++)
+        {
+            SubObject& obj = m_gbsData.SubObjs.at(subObjIndex);
+            if (mobj.socount > 1)
+            {
+                // Max object consists of multiple sub objects
+                if (materialLevel == 0)
+                {
+                    // Build parent material (either MixMat or multi-mtl):
+                    topLevelMaterial = BuildParentMaterial(obj, mobj.socount);
+                    objName = obj.objname;
+                }
+
+                // Add sub-material:
+                Mtl* subMtl = BuildMaterial(obj, topLevelMaterial);
+                topLevelMaterial->SetSubMtl(materialLevel, subMtl);
+            }
+            else
+            {
+                // Just one subobj, build the single material and be done with it:
+                topLevelMaterial = BuildMaterial(obj, nullptr);
+                objName = obj.objname;
+            }
+
+            int v1, v2, v3;
+            unsigned short tidx = -1;
+            unsigned short* tptr = obj.tridata.data();
+
+            unsigned short count = 0;
+            while (EvaluateTriData(&tptr, &tidx, &count, &v1, &v2, &v3))
+            {
+                assert(faceIndex < mesh.getNumFaces());
+                int vstart = mobj.vstart;
+                Face& face = mesh.faces[faceIndex];
+
+                // Map from display to animation vertices, then to a "local" index for this sub object, starting from zero:
+                int remappedV0 = GetLocalVertex(&m_gbsData.averts[m_gbsData.iverts.at(v1)], mesh);
+                int remappedV1 = GetLocalVertex(&m_gbsData.averts[m_gbsData.iverts.at(v2)], mesh);
+                int remappedV2 = GetLocalVertex(&m_gbsData.averts[m_gbsData.iverts.at(v3)], mesh);
+
+                VertColor v0Col = VertColor(m_gbsData.vertrgb.at(v1).r / 255.0f, m_gbsData.vertrgb.at(v1).g / 255.0f, m_gbsData.vertrgb.at(v1).b / 255.0f);
+                VertColor v1Col = VertColor(m_gbsData.vertrgb.at(v2).r / 255.0f, m_gbsData.vertrgb.at(v2).g / 255.0f, m_gbsData.vertrgb.at(v2).b / 255.0f);
+                VertColor v2Col = VertColor(m_gbsData.vertrgb.at(v3).r / 255.0f, m_gbsData.vertrgb.at(v3).g / 255.0f, m_gbsData.vertrgb.at(v3).b / 255.0f);
+
+                mesh.vertCol[remappedV0] = v0Col;
+                mesh.vertCol[remappedV1] = v1Col;
+                mesh.vertCol[remappedV2] = v2Col;
+
+                assert(remappedV0 >= 0 && remappedV1 >= 0 && remappedV2 >= 0);
+                assert(remappedV0 < mobj.vcount && remappedV1 < mobj.vcount && remappedV2 < mobj.vcount);
+                assert(remappedV0 < m_gbsData.naverts && remappedV1 < m_gbsData.naverts && remappedV2 < m_gbsData.naverts);
+
+                face.setVerts(remappedV0, remappedV1, remappedV2);
+                face.setEdgeVisFlags(EDGE_VIS, EDGE_VIS, EDGE_VIS);
+                face.setMatID(materialLevel);
+
+                TVFace& tvFace = mesh.tvFace[faceIndex];
+                tvFace.setTVerts(remappedV0, remappedV1, remappedV2);
+
+                TVFace& vcFace = mesh.vcFace[faceIndex];
+                vcFace.setTVerts(remappedV0, remappedV1, remappedV2);
+
+                faceIndex++;
+            }
+
+            materialLevel++;
+        }
+
+        mesh.buildNormals();
+        mesh.buildBoundingBox();
+        mesh.InvalidateEdgeList();
+
+        TriObject* tri = CreateNewTriObject();
+        tri->mesh = mesh;
+        Matrix3 tm;
+        tm.IdentityMatrix();
+
+        ImpNode* Node = EI->CreateNode();
+        if (!Node)
+        {
+            throw std::exception("Could not create Node");
+        }
+
+        Node->Reference(tri);
+        Node->SetTransform(0, tm);
+        EI->AddNodeToScene(Node);
+        INode* iNode = Node->GetINode();
+        iNode->SetMtl(topLevelMaterial);
+        Node->SetName(util::to_wstring(objName).c_str());
+    }
+}
+
+Mtl* GbsImporter::BuildParentMaterial(SubObject& obj, int numSubMaterials)
+{
+    // Check if we need to create a MixMat blend material
+    // (this check is iffy, not fully certain how to identify MixMat exports but this seems close enough)
+    if (obj.blend > 0.50 && (obj.flags & 0x10 || obj.flags & 0x20))
+    {
+        //if (bitmapTex)
+        //{
+        //    //bitmapTex->GetUVGen()->SetUVWSource(2);
+        //}
+
+        // Create custom MixMat material (from official 3dsmax plugin)
+        Mtl* mixMatMaterial = (Mtl*)CreateInstance(SClass_ID(MATERIAL_CLASS_ID), Class_ID(MIXMAT_CLASS_ID, 0));
+        mixMatMaterial->SetName(util::to_wstring(obj.objname).c_str());
+
+        int ns = mixMatMaterial->NumSubMtls();
+
+        // Set the blend value
+        IParamBlock2* parameterBlock = mixMatMaterial->GetParamBlock(0);
+        parameterBlock->SetValue(0, 0, obj.blend);
+
+        return mixMatMaterial;
+    }
+    else
+    {
+        // Standard multi-material
+        MultiMtl* multiMtl = NewDefaultMultiMtl();
+        multiMtl->SetName(util::to_wstring(obj.objname).c_str());
+        multiMtl->SetNumSubMtls(numSubMaterials);
+
+        return multiMtl;
+    }
+}
+
+Mtl* GbsImporter::BuildMaterial(SubObject& obj, Mtl* parentMaterial)
+{
+    BitmapTex* bitmapTex = nullptr;
+
+    if (obj.texname && obj.texname[0])
+    {
+        std::wstring mapName = util::to_wstring(obj.texname).c_str();
+        mapName += L".tga"; // DDS partially supported but not in use, okay to hardcode for now
+
+        bitmapTex = NewDefaultBitmapTex();
+        bitmapTex->SetName(util::to_wstring(obj.texname).c_str());
+        bitmapTex->SetMapName(mapName.c_str());
+    }
+
+    StdMat2* stdMat = NewDefaultStdMat();
+    if (FlagIsSet(obj.flags, GBSFlagMaxLit) || parentMaterial)
+    {
+        // This isn't quite right, not all models with blend materials have this flag set. See ripper.gbs.
+        // Behavior is correct enough for now though.
+        stdMat->SetWireUnits(TRUE);
+    }
+
+    stdMat->EnableMap(ID_DI, true);
+
+    if (obj.flags & 0x10)
+    {
+        stdMat->SetTransparencyType(TRANSP_ADDITIVE);
+    }
+    else if (obj.flags & 0x20)
+    {
+        stdMat->SetTransparencyType(TRANSP_SUBTRACTIVE);
+    }
+    stdMat->SetShinStr(1.0f, 0);
+    stdMat->SetOpacFalloff(obj.falloff, 0);
+
+    if (obj.emissive != 0)
+    {
+        Color emissive(GetRValue(obj.emissive), GetGValue(obj.emissive), GetBValue(obj.emissive));
+        stdMat->SetSelfIllumColor(emissive, 0);
+    }
+
+    if (bitmapTex)
+    {
+        stdMat->SetSubTexmap(ID_DI, bitmapTex);
+    }
+
+    Color diffuse(GetRValue(obj.diffuse), GetGValue(obj.diffuse), GetBValue(obj.diffuse));
+    stdMat->SetDiffuse(diffuse, 0);
+    Color ambient(GetRValue(obj.ambient), GetGValue(obj.ambient), GetBValue(obj.ambient));
+    stdMat->SetAmbient(ambient, 0);
+    Color specular(GetRValue(obj.specular), GetGValue(obj.specular), GetBValue(obj.specular));
+    stdMat->SetSpecular(specular, 0);
+    stdMat->SetShininess(obj.power / 100.0f, 0);
+
+    stdMat->SetName(util::to_wstring(obj.objname).c_str());
+
+    return stdMat;
+}
+
+BOOL GbsImporter::SupportsOptions(int Ext, DWORD Options)
+{
+    return FALSE;
+}

Plugins/imp_gbs/Importer.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include "GbsData.h"
+
+#define GIANTSIMP_CLASSID	Class_ID(0x552cac79, 0x46f2d727)
+
+class GbsImporter : public SceneImport 
+{
+public:
+	static HWND hParams;
+
+	int				ExtCount();					// Number of extensions supported
+	const MCHAR*	Ext(int n);					// Extension #n (i.e. "3DS")
+	const MCHAR*	LongDesc();					// Long ASCII description (i.e. "Autodesk 3D Studio File")
+	const MCHAR*	ShortDesc();				// Short ASCII description (i.e. "3D Studio")
+	const MCHAR*	AuthorName();				// ASCII Author name
+	const MCHAR*	CopyrightMessage();			// ASCII Copyright message
+	const MCHAR*	OtherMessage1();			// Other message #1
+	const MCHAR*	OtherMessage2();			// Other message #2
+	unsigned int	Version();					// Version number * 100 (i.e. v3.01 = 301)
+	void			ShowAbout(HWND hWnd);		// Show DLL's "About..." box
+	int				DoImport(const MCHAR *name,ImpInterface *i,Interface *gi, BOOL suppressPrompts=FALSE);	// Import file
+
+	//Constructor/Destructor
+	BOOL SupportsOptions(int Ext,DWORD Options);
+
+private:
+	GbsData ReadGbsFile(const MCHAR* Name);
+	Mtl* BuildParentMaterial(SubObject& obj, int numSubMaterials);
+	Mtl* BuildMaterial(SubObject& obj, Mtl* parentMaterial);
+	int GetLocalVertex(Point3* avert, const Mesh& mesh);
+	void BuildMeshes(ImpInterface* EI);
+	bool EvaluateTriData(unsigned short** pTriData, unsigned short* pTriIdx, unsigned short* acount, int* pV1, int* pV2, int* pV3);
+
+	FILE* m_OpenFile{};
+	GbsData m_gbsData;
+};
+
+extern HINSTANCE hInstance;

Plugins/imp_gbs/StdUtil.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <codecvt>
+
+namespace util
+{
+
+	inline std::wstring to_wstring(const std::string_view& sourceString)
+	{
+		std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
+
+		return converter.from_bytes(sourceString.data());
+	}
+
+	inline std::string to_string(const std::wstring_view& sourceString)
+	{
+		using convert_typeX = std::codecvt_utf8<wchar_t>;
+		std::wstring_convert<convert_typeX, wchar_t> converterX;
+
+		return converterX.to_bytes(sourceString.data());
+	}
+}

Plugins/imp_gbs/imp_gbs.def

@@ -0,0 +1,8 @@
+LIBRARY imp_gbs
+EXPORTS
+	LibDescription	    @1
+	LibNumberClasses	@2
+	LibClassDesc	    @3
+	LibVersion	        @4
+SECTIONS
+	.data READ WRITE

Plugins/imp_gbs/imp_gbs.vcxproj

@@ -0,0 +1,191 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Hybrid|x64">
+      <Configuration>Hybrid</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{448F061E-AE05-4E06-84A1-C95660FD048C}</ProjectGuid>
+    <RootNamespace>GiantsExp</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectName>imp_gbs</ProjectName>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>16.0.30427.251</_ProjectFileVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <InlineFunctionExpansion>Default</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>$(ADSK_3DSMAX_SDK_2021)\include;$(GIANTS_SDK_PATH)\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_WINDOWS;_USRDLL;GIANTSIMP_EXPORTS;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <CompileAs>Default</CompileAs>
+      <LanguageStandard>stdcpplatest</LanguageStandard>
+      <ForcedIncludeFiles>stdafx.h</ForcedIncludeFiles>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x0000</Culture>
+      <ResourceOutputFileName>
+      </ResourceOutputFileName>
+    </ResourceCompile>
+    <Link>
+      <AdditionalOptions>/def:imp_gbs.def %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>odbc32.lib;odbccp32.lib;comctl32.lib;bmm.lib;core.lib;geom.lib;gfx.lib;mesh.lib;maxutil.lib;maxscrpt.lib;manipsys.lib;paramblk2.lib;vfw32.lib;mnmath.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <AdditionalLibraryDirectories>$(ADSK_3DSMAX_SDK_2021)\lib\x64\Release;\..\libs;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>NotSet</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <ImportLibrary>$(OutDir)GiantsImp.lib</ImportLibrary>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy "$(TargetPath)" "$(ADSK_3DSMAX_x64_2021)\stdplugs\$(TargetName).dli</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <InlineFunctionExpansion>Default</InlineFunctionExpansion>
+      <AdditionalIncludeDirectories>$(ADSK_3DSMAX_SDK_2021)\include;$(GIANTS_SDK_PATH)\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;GIANTSIMP_EXPORTS;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <CompileAs>Default</CompileAs>
+      <LanguageStandard>stdcpplatest</LanguageStandard>
+      <ForcedIncludeFiles>stdafx.h</ForcedIncludeFiles>
+    </ClCompile>
+    <ResourceCompile>
+      <Culture>0x0000</Culture>
+      <ResourceOutputFileName>
+      </ResourceOutputFileName>
+    </ResourceCompile>
+    <Link>
+      <AdditionalOptions>/def:imp_gbs.def %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>odbc32.lib;odbccp32.lib;comctl32.lib;bmm.lib;core.lib;geom.lib;gfx.lib;mesh.lib;maxutil.lib;maxscrpt.lib;manipsys.lib;paramblk2.lib;vfw32.lib;mnmath.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <AdditionalLibraryDirectories>$(ADSK_3DSMAX_SDK_2021)\lib\x64\Release;\..\libs;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>NotSet</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy "$(TargetPath)" "$(ADSK_3DSMAX_x64_2021)\stdplugs\$(TargetName).dli</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <Optimization>MinSpace</Optimization>
+      <AdditionalIncludeDirectories>$(ADSK_3DSMAX_SDK_2021)\include;$(GIANTS_SDK_PATH)\Include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;GIANTSIMP_EXPORTS;_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <LanguageStandard>stdcpplatest</LanguageStandard>
+      <ForcedIncludeFiles>stdafx.h</ForcedIncludeFiles>
+    </ClCompile>
+    <ResourceCompile>
+      <ResourceOutputFileName>
+      </ResourceOutputFileName>
+    </ResourceCompile>
+    <Link>
+      <AdditionalOptions>/def:imp_gbs.def %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalDependencies>odbc32.lib;odbccp32.lib;comctl32.lib;bmm.lib;core.lib;geom.lib;gfx.lib;mesh.lib;maxutil.lib;maxscrpt.lib;manipsys.lib;paramblk2.lib;vfw32.lib;mnmath.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(ADSK_3DSMAX_SDK_2021)\lib\x64\Release;\..\libs;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <ImportLibrary>$(OutDir)GiantsImp.lib</ImportLibrary>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy "$(TargetPath)" "$(ADSK_3DSMAX_x64_2021)\stdplugs\$(TargetName).dli</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="DLLEntry.cpp" />
+    <ClCompile Include="GbsData.cpp" />
+    <ClCompile Include="Importer.cpp" />
+    <ClCompile Include="stdafx.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Hybrid|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="GbsData.h" />
+    <ClInclude Include="Importer.h" />
+    <ClInclude Include="stdafx.h" />
+    <ClInclude Include="StdUtil.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="imp_gbs.def" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

Plugins/imp_gbs/imp_gbs.vcxproj.filters

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="DLLEntry.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="stdafx.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="GbsData.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Importer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="stdafx.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="GbsData.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Importer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="StdUtil.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="imp_gbs.def">
+      <Filter>Source Files</Filter>
+    </None>
+  </ItemGroup>
+</Project>

Plugins/imp_gbs/stdafx.h

@@ -0,0 +1,17 @@
+#pragma once
+
+// Windows Header Files:
+#define WIN32_LEAN_AND_MEAN		// Exclude rarely-used stuff from Windows headers
+#include <windows.h>
+
+// 3dsmax headers
+#include <max.h>
+#include <iparamm2.h>
+#include <stdmat.h>
+
+// STL
+#include <vector>
+#include <string>
+
+// Game SDK includes
+#include <DataTypes.h>