diff --git a/test/ObjCompilingTests/Game/IW3/Techset/TechniqueCompilerIW3Test.cpp b/test/ObjCompilingTests/Game/IW3/Techset/TechniqueCompilerIW3Test.cpp
new file mode 100644
index 00000000..78daba7e
--- /dev/null
+++ b/test/ObjCompilingTests/Game/IW3/Techset/TechniqueCompilerIW3Test.cpp
@@ -0,0 +1,338 @@
+#include "Game/IW3/Techset/TechniqueCompilerIW3.h"
+
+#include "Game/IW3/IW3.h"
+#include "Game/IW3/Techset/PixelShaderLoaderIW3.h"
+#include "Game/IW3/Techset/VertexDeclCompilerIW3.h"
+#include "Game/IW3/Techset/VertexShaderLoaderIW3.h"
+#include "OatTestPaths.h"
+#include "SearchPath/MockSearchPath.h"
+#include "Shader/ShaderCommon.h"
+#include "Utils/MemoryManager.h"
+#include "catch2/generators/catch_generators.hpp"
+
+#include <catch2/catch_test_macros.hpp>
+#include <filesystem>
+#include <fstream>
+#include <string>
+
+using namespace IW3;
+using namespace Catch;
+using namespace std::literals;
+namespace fs = std::filesystem;
+
+namespace
+{
+    void GivenVertexShaderFile(const std::string& name, MockSearchPath& searchPath)
+    {
+        const auto filePath = oat::paths::GetTestDirectory() / "ObjCompilingTests/Game/IW3/Techset" / std::format("vs_{}.cso", name);
+        const auto fileSize = static_cast<size_t>(fs::file_size(filePath));
+
+        std::ifstream file(filePath, std::ios::binary);
+        REQUIRE(file.is_open());
+
+        std::string data(fileSize, '\0');
+        file.read(data.data(), fileSize);
+        REQUIRE(file.gcount() == static_cast<std::streamsize>(fileSize));
+
+        searchPath.AddFileData(shader::GetFileNameForVertexShaderAssetName(name), std::move(data));
+    }
+
+    void GivenPixelShaderFile(const std::string& name, MockSearchPath& searchPath)
+    {
+        const auto filePath = oat::paths::GetTestDirectory() / "ObjCompilingTests/Game/IW3/Techset" / std::format("ps_{}.cso", name);
+        const auto fileSize = static_cast<size_t>(fs::file_size(filePath));
+
+        std::ifstream file(filePath, std::ios::binary);
+        REQUIRE(file.is_open());
+
+        std::string data(fileSize, '\0');
+        file.read(data.data(), fileSize);
+        REQUIRE(file.gcount() == static_cast<std::streamsize>(fileSize));
+
+        searchPath.AddFileData(shader::GetFileNameForPixelShaderAssetName(name), std::move(data));
+    }
+} // namespace
+
+TEST_CASE("TechniqueCompilerIW3", "[iw3][techset][compiler]")
+{
+
+    Zone zone("MockZone", 0, GameId::IW3, GamePlatform::PC);
+    zone.Register();
+
+    MemoryManager memory;
+    AssetCreatorCollection creatorCollection(zone);
+    IgnoredAssetLookup ignoredAssetLookup;
+    AssetCreationContext context(zone, &creatorCollection, &ignoredAssetLookup);
+    MockSearchPath searchPath;
+
+    creatorCollection.AddSubAssetCreator(techset::CreateVertexDeclCompilerIW3(memory));
+    creatorCollection.AddSubAssetCreator(techset::CreateVertexShaderLoaderIW3(memory, searchPath));
+    creatorCollection.AddSubAssetCreator(techset::CreatePixelShaderLoaderIW3(memory, searchPath));
+
+    auto loader = techset::CreateTechniqueCompilerIW3(memory, zone, searchPath);
+
+    SECTION("Can compile simple technique")
+    {
+        const auto [inputName, inputData] = GENERATE(Catch::Generators::table<const char*, const char*>({
+            {"auto-create args", R"TECHNIQUE(
+{
+  stateMap "passthrough";
+
+  vertexShader 3.0 "simple.hlsl"
+  {
+  }
+
+  pixelShader 3.0 "simple.hlsl"
+  {
+  }
+
+  vertex.position = code.position;
+}
+)TECHNIQUE"},
+            {"manual args",      R"TECHNIQUE(
+{
+  stateMap "passthrough";
+
+  vertexShader 3.0 "simple.hlsl"
+  {
+    worldMatrix = constant.worldMatrix;
+    viewProjectionMatrix = constant.viewProjectionMatrix;
+  }
+
+  pixelShader 3.0 "simple.hlsl"
+  {
+  }
+
+  vertex.position = code.position;
+}
+)TECHNIQUE"},
+        }));
+
+        CAPTURE(inputName);
+        searchPath.AddFileData("techniques/zprepass.tech", inputData);
+
+        GivenVertexShaderFile("simple.hlsl", searchPath);
+        GivenPixelShaderFile("simple.hlsl", searchPath);
+
+        auto result = loader->CreateSubAsset("zprepass", context);
+        REQUIRE(result.HasBeenSuccessful());
+
+        const auto* assetInfo = reinterpret_cast<XAssetInfo<MaterialTechnique>*>(result.GetAssetInfo());
+        const auto* technique = assetInfo->Asset();
+
+        CHECK(technique->name == "zprepass"s);
+
+        CHECK(technique->flags == 0x4);
+
+        REQUIRE(technique->passCount == 1);
+        auto& pass = technique->passArray[0];
+        CHECK(pass.customSamplerFlags == 0);
+
+        REQUIRE(pass.vertexShader);
+        CHECK(pass.vertexShader->name == "simple.hlsl"s);
+        REQUIRE(pass.pixelShader);
+        CHECK(pass.pixelShader->name == "simple.hlsl"s);
+
+        REQUIRE(pass.vertexDecl);
+        auto& vertexDecl = *pass.vertexDecl;
+        CHECK(vertexDecl.hasOptionalSource == false);
+        REQUIRE(vertexDecl.streamCount == 1);
+        CHECK(vertexDecl.routing.data[0].source == STREAM_SRC_POSITION);
+        CHECK(vertexDecl.routing.data[0].dest == STREAM_DST_POSITION);
+
+        REQUIRE(pass.perPrimArgCount == 1);
+        REQUIRE(pass.perObjArgCount == 1);
+        REQUIRE(pass.stableArgCount == 0);
+        CHECK(pass.args[0].type == MTL_ARG_CODE_VERTEX_CONST);
+        CHECK(pass.args[0].dest == 4);
+        CHECK(pass.args[0].u.codeConst.index == CONST_SRC_CODE_TRANSPOSE_WORLD_MATRIX);
+        CHECK(pass.args[0].u.codeConst.firstRow == 0);
+        CHECK(pass.args[0].u.codeConst.rowCount == 4);
+
+        CHECK(pass.args[1].type == MTL_ARG_CODE_VERTEX_CONST);
+        CHECK(pass.args[1].dest == 0);
+        CHECK(pass.args[1].u.codeConst.index == CONST_SRC_CODE_TRANSPOSE_VIEW_PROJECTION_MATRIX);
+        CHECK(pass.args[1].u.codeConst.firstRow == 0);
+        CHECK(pass.args[1].u.codeConst.rowCount == 4);
+    }
+
+    SECTION("Can compile advanced technique")
+    {
+        const auto [inputName, inputData] = GENERATE(Catch::Generators::table<const char*, const char*>({
+            {"auto-create args", R"TECHNIQUE(
+{
+  stateMap "passthrough";
+
+  vertexShader 3.0 "advanced.hlsl"
+  {
+  }
+
+  pixelShader 3.0 "advanced.hlsl"
+  {
+    normalMapSampler = material.normalMap;
+    colorMapSampler = material.colorMap;
+  }
+
+  vertex.position = code.position;
+  vertex.color[0] = code.color;
+  vertex.texcoord[0] = code.texcoord[0];
+  vertex.normal = code.normal;
+  vertex.texcoord[2] = code.tangent;
+}
+)TECHNIQUE"},
+            {"manual args",      R"TECHNIQUE(
+{
+  stateMap "passthrough";
+
+  vertexShader 3.0 "advanced.hlsl"
+  {
+    worldMatrix = constant.worldMatrix;
+    baseLightingCoords = constant.baseLightingCoords;
+    viewProjectionMatrix = constant.viewProjectionMatrix;
+    fogConsts = constant.fogConsts;
+  }
+
+  pixelShader 3.0 "advanced.hlsl"
+  {
+    attenuationSampler = sampler.attenuationSampler;
+    normalMapSampler = material.normalMap;
+    colorMapSampler = material.colorMap;
+    modelLightingSampler = sampler.modelLightingSampler;
+    fogColor = constant.fogColor;
+    lightingLookupScale = constant.lightingLookupScale;
+    lightPosition = constant.lightPosition;
+    lightDiffuse = constant.lightDiffuse;
+    lightSpotDir = constant.lightSpotDir;
+    lightSpotFactors = constant.lightSpotFactors;
+  }
+
+  vertex.position = code.position;
+  vertex.color[0] = code.color;
+  vertex.texcoord[0] = code.texcoord[0];
+  vertex.normal = code.normal;
+  vertex.texcoord[2] = code.tangent;
+}
+)TECHNIQUE"},
+        }));
+
+        CAPTURE(inputName);
+        searchPath.AddFileData("techniques/example_lit_spot.tech", inputData);
+
+        GivenVertexShaderFile("advanced.hlsl", searchPath);
+        GivenPixelShaderFile("advanced.hlsl", searchPath);
+
+        auto result = loader->CreateSubAsset("example_lit_spot", context);
+        REQUIRE(result.HasBeenSuccessful());
+
+        const auto* assetInfo = reinterpret_cast<XAssetInfo<MaterialTechnique>*>(result.GetAssetInfo());
+        const auto* technique = assetInfo->Asset();
+
+        CHECK(technique->name == "example_lit_spot"s);
+
+        CHECK(technique->flags == 0x10);
+
+        REQUIRE(technique->passCount == 1);
+        auto& pass = technique->passArray[0];
+        CHECK(pass.customSamplerFlags == 0);
+
+        REQUIRE(pass.vertexShader);
+        CHECK(pass.vertexShader->name == "advanced.hlsl"s);
+        REQUIRE(pass.pixelShader);
+        CHECK(pass.pixelShader->name == "advanced.hlsl"s);
+
+        REQUIRE(pass.vertexDecl);
+        auto& vertexDecl = *pass.vertexDecl;
+        CHECK(vertexDecl.hasOptionalSource == false);
+        REQUIRE(vertexDecl.streamCount == 5);
+        CHECK(vertexDecl.routing.data[0].source == STREAM_SRC_POSITION);
+        CHECK(vertexDecl.routing.data[0].dest == STREAM_DST_POSITION);
+        CHECK(vertexDecl.routing.data[1].source == STREAM_SRC_COLOR);
+        CHECK(vertexDecl.routing.data[1].dest == STREAM_DST_COLOR_0);
+        CHECK(vertexDecl.routing.data[2].source == STREAM_SRC_TEXCOORD_0);
+        CHECK(vertexDecl.routing.data[2].dest == STREAM_DST_TEXCOORD_0);
+        CHECK(vertexDecl.routing.data[3].source == STREAM_SRC_NORMAL);
+        CHECK(vertexDecl.routing.data[3].dest == STREAM_DST_NORMAL);
+        CHECK(vertexDecl.routing.data[4].source == STREAM_SRC_TANGENT);
+        CHECK(vertexDecl.routing.data[4].dest == STREAM_DST_TEXCOORD_2);
+
+        REQUIRE(pass.perPrimArgCount == 2);
+        REQUIRE(pass.perObjArgCount == 2);
+        REQUIRE(pass.stableArgCount == 10);
+
+        CHECK(pass.args[0].type == MTL_ARG_CODE_VERTEX_CONST);
+        CHECK(pass.args[0].dest == 4);
+        CHECK(pass.args[0].u.codeConst.index == CONST_SRC_CODE_TRANSPOSE_WORLD_MATRIX);
+        CHECK(pass.args[0].u.codeConst.firstRow == 0);
+        CHECK(pass.args[0].u.codeConst.rowCount == 4);
+
+        CHECK(pass.args[1].type == MTL_ARG_CODE_VERTEX_CONST);
+        CHECK(pass.args[1].dest == 8);
+        CHECK(pass.args[1].u.codeConst.index == CONST_SRC_CODE_BASE_LIGHTING_COORDS);
+        CHECK(pass.args[1].u.codeConst.firstRow == 0);
+        CHECK(pass.args[1].u.codeConst.rowCount == 1);
+
+        CHECK(pass.args[2].type == MTL_ARG_CODE_VERTEX_CONST);
+        CHECK(pass.args[2].dest == 0);
+        CHECK(pass.args[2].u.codeConst.index == CONST_SRC_CODE_TRANSPOSE_VIEW_PROJECTION_MATRIX);
+        CHECK(pass.args[2].u.codeConst.firstRow == 0);
+        CHECK(pass.args[2].u.codeConst.rowCount == 4);
+
+        CHECK(pass.args[3].type == MTL_ARG_CODE_PIXEL_SAMPLER);
+        CHECK(pass.args[3].dest == 6);
+        CHECK(pass.args[3].u.codeSampler == TEXTURE_SRC_CODE_LIGHT_ATTENUATION);
+
+        CHECK(pass.args[4].type == MTL_ARG_MATERIAL_PIXEL_SAMPLER);
+        CHECK(pass.args[4].dest == 5);
+        CHECK(pass.args[4].u.nameHash == 0x59D30D0F);
+
+        CHECK(pass.args[5].type == MTL_ARG_MATERIAL_PIXEL_SAMPLER);
+        CHECK(pass.args[5].dest == 0);
+        CHECK(pass.args[5].u.nameHash == 0xA0AB1041);
+
+        CHECK(pass.args[6].type == MTL_ARG_CODE_VERTEX_CONST);
+        CHECK(pass.args[6].dest == 21);
+        CHECK(pass.args[6].u.codeConst.index == CONST_SRC_CODE_FOG);
+        CHECK(pass.args[6].u.codeConst.firstRow == 0);
+        CHECK(pass.args[6].u.codeConst.rowCount == 1);
+
+        CHECK(pass.args[7].type == MTL_ARG_CODE_PIXEL_SAMPLER);
+        CHECK(pass.args[7].dest == 4);
+        CHECK(pass.args[7].u.codeSampler == TEXTURE_SRC_CODE_MODEL_LIGHTING);
+
+        CHECK(pass.args[8].type == MTL_ARG_CODE_PIXEL_CONST);
+        CHECK(pass.args[8].dest == 0);
+        CHECK(pass.args[8].u.codeConst.index == CONST_SRC_CODE_FOG_COLOR);
+        CHECK(pass.args[8].u.codeConst.firstRow == 0);
+        CHECK(pass.args[8].u.codeConst.rowCount == 1);
+
+        CHECK(pass.args[9].type == MTL_ARG_CODE_PIXEL_CONST);
+        CHECK(pass.args[9].dest == 5);
+        CHECK(pass.args[9].u.codeConst.index == CONST_SRC_CODE_LIGHTING_LOOKUP_SCALE);
+        CHECK(pass.args[9].u.codeConst.firstRow == 0);
+        CHECK(pass.args[9].u.codeConst.rowCount == 1);
+
+        CHECK(pass.args[10].type == MTL_ARG_CODE_PIXEL_CONST);
+        CHECK(pass.args[10].dest == 6);
+        CHECK(pass.args[10].u.codeConst.index == CONST_SRC_CODE_LIGHT_POSITION);
+        CHECK(pass.args[10].u.codeConst.firstRow == 0);
+        CHECK(pass.args[10].u.codeConst.rowCount == 1);
+
+        CHECK(pass.args[11].type == MTL_ARG_CODE_PIXEL_CONST);
+        CHECK(pass.args[11].dest == 7);
+        CHECK(pass.args[11].u.codeConst.index == CONST_SRC_CODE_LIGHT_DIFFUSE);
+        CHECK(pass.args[11].u.codeConst.firstRow == 0);
+        CHECK(pass.args[11].u.codeConst.rowCount == 1);
+
+        CHECK(pass.args[12].type == MTL_ARG_CODE_PIXEL_CONST);
+        CHECK(pass.args[12].dest == 8);
+        CHECK(pass.args[12].u.codeConst.index == CONST_SRC_CODE_LIGHT_SPOTDIR);
+        CHECK(pass.args[12].u.codeConst.firstRow == 0);
+        CHECK(pass.args[12].u.codeConst.rowCount == 1);
+
+        CHECK(pass.args[13].type == MTL_ARG_CODE_PIXEL_CONST);
+        CHECK(pass.args[13].dest == 9);
+        CHECK(pass.args[13].u.codeConst.index == CONST_SRC_CODE_LIGHT_SPOTFACTORS);
+        CHECK(pass.args[13].u.codeConst.firstRow == 0);
+        CHECK(pass.args[13].u.codeConst.rowCount == 1);
+    }
+}
diff --git a/test/ObjCompilingTests/Game/IW3/Techset/TechsetCompilerIW3Test.cpp b/test/ObjCompilingTests/Game/IW3/Techset/TechsetCompilerIW3Test.cpp
new file mode 100644
index 00000000..642da0e5
--- /dev/null
+++ b/test/ObjCompilingTests/Game/IW3/Techset/TechsetCompilerIW3Test.cpp
@@ -0,0 +1,149 @@
+#include "Game/IW3/Techset/TechsetCompilerIW3.h"
+
+#include "Game/IW3/IW3.h"
+#include "SearchPath/MockSearchPath.h"
+#include "Techset/TechsetCommon.h"
+#include "Utils/TestMemoryManager.h"
+
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+#include <catch2/matchers/catch_matchers_floating_point.hpp>
+#include <memory>
+
+using namespace IW3;
+using namespace std::string_literals;
+
+namespace
+{
+    MaterialTechnique* GivenTechnique(const std::string& name, AssetCreationContext& context, MemoryManager& memory)
+    {
+        auto* technique = memory.Alloc<MaterialTechnique>();
+        technique->name = memory.Dup(name.c_str());
+
+        context.AddSubAsset<SubAssetTechnique>(name, technique);
+
+        return technique;
+    }
+} // namespace
+
+TEST_CASE("TechsetCompilerIW3", "[techset][iw3][compiler]")
+{
+    Zone zone("test", 0, GameId::IW3, GamePlatform::PC);
+    AssetCreatorCollection creators(zone);
+    IgnoredAssetLookup ignoredAssets;
+    AssetCreationContext context(zone, &creators, &ignoredAssets);
+    MockSearchPath searchPath;
+    TestMemoryManager memory;
+    const auto sut = techset::CreateTechsetCompilerIW3(memory, searchPath);
+
+    SECTION("Sets correct worldVertFormat")
+    {
+        const auto [techsetName, expectedWorldVertFormat] = GENERATE(Catch::Generators::table<const char*, MaterialWorldVertexFormat>({
+            {"default",                                     MTL_WORLDVERT_TEX_1_NRM_1},
+            {"effect_zeqqz943",                             MTL_WORLDVERT_TEX_1_NRM_1},
+            {"lit_r0c0_t1c1n1",                             MTL_WORLDVERT_TEX_2_NRM_1},
+            {"lit_r0c0n0x0_b1c1n1s1v1",                     MTL_WORLDVERT_TEX_2_NRM_2},
+            {"lit_r0c0n0x0_b1c1n1s1v1_b2c2n2x2",            MTL_WORLDVERT_TEX_3_NRM_3},
+            {"lit_sm_b0c0_b1c1_b2c2",                       MTL_WORLDVERT_TEX_3_NRM_1},
+            {"lit_sm_b0c0_b1c1n1x1_b2c2n2v2",               MTL_WORLDVERT_TEX_3_NRM_2},
+            {"lit_sm_r0c0_b1c1_b2c2_b3c3",                  MTL_WORLDVERT_TEX_4_NRM_1},
+            {"lit_sm_r0c0n0_b1c1_b2c2n2v2_m3c3",            MTL_WORLDVERT_TEX_4_NRM_2},
+            {"lit_sm_r0c0n0_b1c1n1s1",                      MTL_WORLDVERT_TEX_2_NRM_2},
+            {"lit_sm_r0c0n0s0_b1c1n1s1_b2c2n2",             MTL_WORLDVERT_TEX_3_NRM_3},
+            {"lit_sm_r0c0n0x0_b1c1_b2c2n2s2",               MTL_WORLDVERT_TEX_3_NRM_2},
+            {"lit_sm_r0c0n0x0_b1c1n1_b2c2n2s2v2",           MTL_WORLDVERT_TEX_3_NRM_3},
+            {"lit_sm_r0c0n0x0_b1c1s1v1_m2c2_m3c3",          MTL_WORLDVERT_TEX_4_NRM_1},
+            {"lit_sm_r0c0n0x0_b1c1v1_b2c2n2s2_m3c3",        MTL_WORLDVERT_TEX_4_NRM_2},
+            {"lit_sm_r0c0s0_b1c1n1s1_m2c2",                 MTL_WORLDVERT_TEX_3_NRM_1},
+            {"lit_sm_r0c0x0_b1c1",                          MTL_WORLDVERT_TEX_2_NRM_1},
+            {"lit_sm_r0c0x0_b1c1n1s1_b2c2n2s2",             MTL_WORLDVERT_TEX_3_NRM_2},
+            {"lit_sm_r0c0x0_m1c1_m2c2_m3c3",                MTL_WORLDVERT_TEX_4_NRM_1},
+            {"lit_sm_t0c0n0_b1c1n1v1",                      MTL_WORLDVERT_TEX_2_NRM_2},
+            {"lit_sm_t0c0n0s0_b1c1n1_b2c2n2s2v2",           MTL_WORLDVERT_TEX_3_NRM_3},
+            {"mc_lit_sm_r0c0d0_2213939z",                   MTL_WORLDVERT_TEX_1_NRM_1},
+            {"wpc_lit_sm_b0c0s0_3f3q946z",                  MTL_WORLDVERT_TEX_1_NRM_1},
+            {"wpc_lit_sm_r0c0n0s0o0_qj92q1f8",              MTL_WORLDVERT_TEX_1_NRM_1},
+            {"wpc_sw4_3d_burning_embers_nuketown_74j6971w", MTL_WORLDVERT_TEX_1_NRM_1},
+            {"wpc_unlitdecalblend_add_j26wq580",            MTL_WORLDVERT_TEX_1_NRM_1},
+        }));
+
+        CAPTURE(techsetName);
+        searchPath.AddFileData(techset::GetFileNameForTechsetName(techsetName), "");
+
+        const auto result = sut->CreateAsset(techsetName, context);
+        REQUIRE(result.HasBeenSuccessful());
+
+        const auto* techset = static_cast<MaterialTechniqueSet*>(result.GetAssetInfo()->m_ptr);
+        CHECK(techset->worldVertFormat == expectedWorldVertFormat);
+    }
+
+    SECTION("Can parse simple techset")
+    {
+        searchPath.AddFileData(techset::GetFileNameForTechsetName("simple"), R"TECHSET(
+"depth prepass":
+  example_zprepass;
+
+"lit spot":
+  example_lit_spot;
+)TECHSET");
+
+        auto* exampleZPrepass = GivenTechnique("example_zprepass", context, memory);
+        auto* exampleLit = GivenTechnique("example_lit_spot", context, memory);
+
+        const auto result = sut->CreateAsset("simple", context);
+        REQUIRE(result.HasBeenSuccessful());
+
+        const auto* techset = static_cast<MaterialTechniqueSet*>(result.GetAssetInfo()->m_ptr);
+        CHECK(techset->name == "simple"s);
+        CHECK(techset->worldVertFormat == MTL_WORLDVERT_TEX_1_NRM_1);
+
+        size_t techniqueCount = 0;
+        for (auto* technique : techset->techniques)
+        {
+            if (technique)
+                techniqueCount++;
+        }
+
+        CHECK(techniqueCount == 2);
+        CHECK(techset->techniques[TECHNIQUE_DEPTH_PREPASS] == exampleZPrepass);
+        CHECK(techset->techniques[TECHNIQUE_LIT_SPOT] == exampleLit);
+    }
+
+    SECTION("Can parse techset with same technique used multiple times")
+    {
+        searchPath.AddFileData(techset::GetFileNameForTechsetName("simple"), R"TECHSET(
+"depth prepass":
+"build shadowmap depth":
+  example_zprepass;
+
+"lit":
+"lit sun":
+"lit instanced omni shadow":
+  example_lit_spot;
+)TECHSET");
+
+        auto* exampleZPrepass = GivenTechnique("example_zprepass", context, memory);
+        auto* exampleLitOmni = GivenTechnique("example_lit_spot", context, memory);
+
+        const auto result = sut->CreateAsset("simple", context);
+        REQUIRE(result.HasBeenSuccessful());
+
+        const auto* techset = static_cast<MaterialTechniqueSet*>(result.GetAssetInfo()->m_ptr);
+        CHECK(techset->name == "simple"s);
+        CHECK(techset->worldVertFormat == MTL_WORLDVERT_TEX_1_NRM_1);
+
+        size_t techniqueCount = 0;
+        for (auto* technique : techset->techniques)
+        {
+            if (technique)
+                techniqueCount++;
+        }
+
+        CHECK(techniqueCount == 5);
+        CHECK(techset->techniques[TECHNIQUE_DEPTH_PREPASS] == exampleZPrepass);
+        CHECK(techset->techniques[TECHNIQUE_BUILD_SHADOWMAP_DEPTH] == exampleZPrepass);
+        CHECK(techset->techniques[TECHNIQUE_LIT] == exampleLitOmni);
+        CHECK(techset->techniques[TECHNIQUE_LIT_SUN] == exampleLitOmni);
+        CHECK(techset->techniques[TECHNIQUE_LIT_INSTANCED_OMNI_SHADOW] == exampleLitOmni);
+    }
+}
diff --git a/test/ObjCompilingTests/Game/IW3/Techset/VertexDeclCompilerIW3Test.cpp b/test/ObjCompilingTests/Game/IW3/Techset/VertexDeclCompilerIW3Test.cpp
new file mode 100644
index 00000000..6a7d46ab
--- /dev/null
+++ b/test/ObjCompilingTests/Game/IW3/Techset/VertexDeclCompilerIW3Test.cpp
@@ -0,0 +1,61 @@
+#include "Game/IW3/Techset/VertexDeclCompilerIW3.h"
+
+#include "Game/IW3/IW3.h"
+#include "Utils/MemoryManager.h"
+
+#include <catch2/catch_test_macros.hpp>
+
+using namespace IW3;
+using namespace Catch;
+using namespace std::literals;
+
+TEST_CASE("VertexDeclCompilerIW3", "[iw3][techset][compiler]")
+{
+    Zone zone("MockZone", 0, GameId::IW3, GamePlatform::PC);
+    zone.Register();
+
+    MemoryManager memory;
+    AssetCreatorCollection creatorCollection(zone);
+    IgnoredAssetLookup ignoredAssetLookup;
+    AssetCreationContext context(zone, &creatorCollection, &ignoredAssetLookup);
+
+    auto loader = techset::CreateVertexDeclCompilerIW3(memory);
+
+    SECTION("Can create simple vertex decl")
+    {
+        auto result = loader->CreateSubAsset("pp", context);
+        REQUIRE(result.HasBeenSuccessful());
+
+        const auto* assetInfo = reinterpret_cast<XAssetInfo<MaterialVertexDeclaration>*>(result.GetAssetInfo());
+        const auto* decl = assetInfo->Asset();
+
+        CHECK(decl->hasOptionalSource == false);
+
+        REQUIRE(decl->streamCount == 1);
+        CHECK(decl->routing.data[0].source == STREAM_SRC_POSITION);
+        CHECK(decl->routing.data[0].dest == STREAM_DST_POSITION);
+    }
+
+    SECTION("Can create advanced vertex decl")
+    {
+        auto result = loader->CreateSubAsset("pt6cc1tt7t1t1n1n", context);
+        REQUIRE(result.HasBeenSuccessful());
+
+        const auto* assetInfo = reinterpret_cast<XAssetInfo<MaterialVertexDeclaration>*>(result.GetAssetInfo());
+        const auto* decl = assetInfo->Asset();
+
+        CHECK(decl->hasOptionalSource == true);
+
+        REQUIRE(decl->streamCount == 5);
+        CHECK(decl->routing.data[0].source == STREAM_SRC_POSITION);
+        CHECK(decl->routing.data[0].dest == STREAM_DST_TEXCOORD_6);
+        CHECK(decl->routing.data[1].source == STREAM_SRC_COLOR);
+        CHECK(decl->routing.data[1].dest == STREAM_DST_COLOR_1);
+        CHECK(decl->routing.data[2].source == STREAM_SRC_TANGENT);
+        CHECK(decl->routing.data[2].dest == STREAM_DST_TEXCOORD_7);
+        CHECK(decl->routing.data[3].source == STREAM_SRC_TEXCOORD_1);
+        CHECK(decl->routing.data[3].dest == STREAM_DST_TEXCOORD_1);
+        CHECK(decl->routing.data[4].source == STREAM_SRC_NORMAL_TRANSFORM_1);
+        CHECK(decl->routing.data[4].dest == STREAM_DST_NORMAL);
+    }
+}
diff --git a/test/ObjCompilingTests/Game/IW3/Techset/ps_advanced.hlsl.cso b/test/ObjCompilingTests/Game/IW3/Techset/ps_advanced.hlsl.cso
new file mode 100644
index 00000000..fe2d3be1
Binary files /dev/null and b/test/ObjCompilingTests/Game/IW3/Techset/ps_advanced.hlsl.cso differ
diff --git a/test/ObjCompilingTests/Game/IW3/Techset/ps_simple.hlsl.cso b/test/ObjCompilingTests/Game/IW3/Techset/ps_simple.hlsl.cso
new file mode 100644
index 00000000..7b0d23c6
Binary files /dev/null and b/test/ObjCompilingTests/Game/IW3/Techset/ps_simple.hlsl.cso differ
diff --git a/test/ObjCompilingTests/Game/IW3/Techset/vs_advanced.hlsl.cso b/test/ObjCompilingTests/Game/IW3/Techset/vs_advanced.hlsl.cso
new file mode 100644
index 00000000..d928f474
Binary files /dev/null and b/test/ObjCompilingTests/Game/IW3/Techset/vs_advanced.hlsl.cso differ
diff --git a/test/ObjCompilingTests/Game/IW3/Techset/vs_simple.hlsl.cso b/test/ObjCompilingTests/Game/IW3/Techset/vs_simple.hlsl.cso
new file mode 100644
index 00000000..1d11cba2
Binary files /dev/null and b/test/ObjCompilingTests/Game/IW3/Techset/vs_simple.hlsl.cso differ
diff --git a/test/ObjWritingTests/Game/IW3/Techset/TechsetDumperIW3Test.cpp b/test/ObjWritingTests/Game/IW3/Techset/TechsetDumperIW3Test.cpp
new file mode 100644
index 00000000..10df5b18
--- /dev/null
+++ b/test/ObjWritingTests/Game/IW3/Techset/TechsetDumperIW3Test.cpp
@@ -0,0 +1,338 @@
+#include "Game/IW3/Techset/TechsetDumperIW3.h"
+
+#include "Asset/AssetRegistration.h"
+#include "Game/IW3/IW3.h"
+#include "OatTestPaths.h"
+#include "SearchPath/MockOutputPath.h"
+#include "SearchPath/MockSearchPath.h"
+#include "Utils/MemoryManager.h"
+
+#include <catch2/catch_test_macros.hpp>
+#include <filesystem>
+#include <format>
+#include <fstream>
+#include <string>
+
+using namespace IW3;
+using namespace Catch;
+using namespace std::literals;
+namespace fs = std::filesystem;
+
+namespace
+{
+    std::string Trimmed(const std::string& input)
+    {
+        auto start = input.find_first_not_of(" \r\n");
+        if (start == std::string::npos)
+            start = 0;
+
+        auto end = input.find_last_not_of(" \r\n");
+        if (end == std::string::npos)
+            end = input.length();
+        else
+            end = end + 1;
+
+        return input.substr(start, end - start);
+    }
+
+    MaterialVertexShader* GivenVertexShader(const std::string& name, MemoryManager& memory)
+    {
+        const auto filePath = oat::paths::GetTestDirectory() / "ObjWritingTests/Game/IW3/Techset" / std::format("vs_{}.cso", name);
+        const auto fileSize = static_cast<size_t>(fs::file_size(filePath));
+
+        std::ifstream file(filePath, std::ios::binary);
+        REQUIRE(file.is_open());
+
+        auto* shader = memory.Alloc<MaterialVertexShader>();
+        shader->name = memory.Dup(name.c_str());
+        shader->prog.loadDef.program = reinterpret_cast<unsigned*>(memory.Alloc<char>(fileSize));
+        shader->prog.loadDef.programSize = static_cast<decltype(GfxVertexShaderLoadDef::programSize)>(fileSize / 4u);
+        file.read(reinterpret_cast<char*>(shader->prog.loadDef.program), fileSize);
+        REQUIRE(file.gcount() == static_cast<std::streamsize>(fileSize));
+
+        return shader;
+    }
+
+    MaterialPixelShader* GivenPixelShader(const std::string& name, MemoryManager& memory)
+    {
+        const auto filePath = oat::paths::GetTestDirectory() / "ObjWritingTests/Game/IW3/Techset" / std::format("ps_{}.cso", name);
+        const auto fileSize = static_cast<size_t>(fs::file_size(filePath));
+
+        std::ifstream file(filePath, std::ios::binary);
+        REQUIRE(file.is_open());
+
+        auto* shader = memory.Alloc<MaterialPixelShader>();
+        shader->name = memory.Dup(name.c_str());
+        shader->prog.loadDef.program = reinterpret_cast<unsigned*>(memory.Alloc<char>(fileSize));
+        shader->prog.loadDef.programSize = static_cast<decltype(GfxVertexShaderLoadDef::programSize)>(fileSize / 4u);
+        file.read(reinterpret_cast<char*>(shader->prog.loadDef.program), fileSize);
+        REQUIRE(file.gcount() == static_cast<std::streamsize>(fileSize));
+
+        return shader;
+    }
+
+    MaterialTechnique* GivenDepthPrepassTechnique(MemoryManager& memory)
+    {
+        auto* technique = memory.Alloc<MaterialTechnique>();
+        technique->name = "example_zprepass";
+        technique->flags = 0x4;
+        technique->passCount = 1;
+
+        auto& pass = technique->passArray[0];
+        pass.perPrimArgCount = 1;
+        pass.perObjArgCount = 1;
+        pass.stableArgCount = 0;
+        pass.customSamplerFlags = 0;
+
+        pass.vertexShader = GivenVertexShader("simple.hlsl", memory);
+        pass.pixelShader = GivenPixelShader("simple.hlsl", memory);
+
+        pass.vertexDecl = memory.Alloc<MaterialVertexDeclaration>();
+        auto& vertexDecl = *pass.vertexDecl;
+        vertexDecl.streamCount = 1;
+        vertexDecl.hasOptionalSource = false;
+        vertexDecl.routing.data[0].source = STREAM_SRC_POSITION;
+        vertexDecl.routing.data[0].dest = STREAM_DST_POSITION;
+
+        pass.args = memory.Alloc<MaterialShaderArgument>(2);
+        pass.args[0].type = MTL_ARG_CODE_VERTEX_CONST;
+        pass.args[0].dest = 4;
+        pass.args[0].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_WORLD_MATRIX;
+        pass.args[0].u.codeConst.firstRow = 0;
+        pass.args[0].u.codeConst.rowCount = 4;
+
+        pass.args[1].type = MTL_ARG_CODE_VERTEX_CONST;
+        pass.args[1].dest = 0;
+        pass.args[1].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_VIEW_PROJECTION_MATRIX;
+        pass.args[1].u.codeConst.firstRow = 0;
+        pass.args[1].u.codeConst.rowCount = 4;
+
+        return technique;
+    }
+
+    MaterialTechnique* GivenLitSpotTechnique(MemoryManager& memory)
+    {
+        auto* technique = memory.Alloc<MaterialTechnique>();
+        technique->name = "example_lit_spot";
+        technique->flags = 0x10;
+        technique->passCount = 1;
+
+        auto& pass = technique->passArray[0];
+        pass.perPrimArgCount = 2;
+        pass.perObjArgCount = 2;
+        pass.stableArgCount = 10;
+        pass.customSamplerFlags = 0;
+
+        pass.vertexShader = GivenVertexShader("advanced.hlsl", memory);
+        pass.pixelShader = GivenPixelShader("advanced.hlsl", memory);
+
+        pass.vertexDecl = memory.Alloc<MaterialVertexDeclaration>();
+        auto& vertexDecl = *pass.vertexDecl;
+        vertexDecl.streamCount = 5;
+        vertexDecl.hasOptionalSource = false;
+        vertexDecl.routing.data[0].source = STREAM_SRC_POSITION;
+        vertexDecl.routing.data[0].dest = STREAM_DST_POSITION;
+        vertexDecl.routing.data[1].source = STREAM_SRC_COLOR;
+        vertexDecl.routing.data[1].dest = STREAM_DST_COLOR_0;
+        vertexDecl.routing.data[2].source = STREAM_SRC_TEXCOORD_0;
+        vertexDecl.routing.data[2].dest = STREAM_DST_TEXCOORD_0;
+        vertexDecl.routing.data[3].source = STREAM_SRC_NORMAL;
+        vertexDecl.routing.data[3].dest = STREAM_DST_NORMAL;
+        vertexDecl.routing.data[4].source = STREAM_SRC_TANGENT;
+        vertexDecl.routing.data[4].dest = STREAM_DST_TEXCOORD_2;
+
+        pass.args = memory.Alloc<MaterialShaderArgument>(14);
+        pass.args[0].type = MTL_ARG_CODE_VERTEX_CONST;
+        pass.args[0].dest = 4;
+        pass.args[0].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_WORLD_MATRIX;
+        pass.args[0].u.codeConst.firstRow = 0;
+        pass.args[0].u.codeConst.rowCount = 4;
+
+        pass.args[1].type = MTL_ARG_CODE_VERTEX_CONST;
+        pass.args[1].dest = 8;
+        pass.args[1].u.codeConst.index = CONST_SRC_CODE_BASE_LIGHTING_COORDS;
+        pass.args[1].u.codeConst.firstRow = 0;
+        pass.args[1].u.codeConst.rowCount = 1;
+
+        pass.args[2].type = MTL_ARG_CODE_VERTEX_CONST;
+        pass.args[2].dest = 0;
+        pass.args[2].u.codeConst.index = CONST_SRC_CODE_TRANSPOSE_VIEW_PROJECTION_MATRIX;
+        pass.args[2].u.codeConst.firstRow = 0;
+        pass.args[2].u.codeConst.rowCount = 4;
+
+        pass.args[3].type = MTL_ARG_CODE_PIXEL_SAMPLER;
+        pass.args[3].dest = 6;
+        pass.args[3].u.codeSampler = TEXTURE_SRC_CODE_LIGHT_ATTENUATION;
+
+        pass.args[4].type = MTL_ARG_MATERIAL_PIXEL_SAMPLER;
+        pass.args[4].dest = 5;
+        pass.args[4].u.nameHash = 0x59D30D0F;
+
+        pass.args[5].type = MTL_ARG_MATERIAL_PIXEL_SAMPLER;
+        pass.args[5].dest = 0;
+        pass.args[5].u.nameHash = 0xA0AB1041;
+
+        pass.args[6].type = MTL_ARG_CODE_VERTEX_CONST;
+        pass.args[6].dest = 21;
+        pass.args[6].u.codeConst.index = CONST_SRC_CODE_FOG;
+        pass.args[6].u.codeConst.firstRow = 0;
+        pass.args[6].u.codeConst.rowCount = 1;
+
+        pass.args[7].type = MTL_ARG_CODE_PIXEL_SAMPLER;
+        pass.args[7].dest = 4;
+        pass.args[7].u.codeSampler = TEXTURE_SRC_CODE_MODEL_LIGHTING;
+
+        pass.args[8].type = MTL_ARG_CODE_PIXEL_CONST;
+        pass.args[8].dest = 0;
+        pass.args[8].u.codeConst.index = CONST_SRC_CODE_FOG_COLOR;
+        pass.args[8].u.codeConst.firstRow = 0;
+        pass.args[8].u.codeConst.rowCount = 1;
+
+        pass.args[9].type = MTL_ARG_CODE_PIXEL_CONST;
+        pass.args[9].dest = 5;
+        pass.args[9].u.codeConst.index = CONST_SRC_CODE_LIGHTING_LOOKUP_SCALE;
+        pass.args[9].u.codeConst.firstRow = 0;
+        pass.args[9].u.codeConst.rowCount = 1;
+
+        pass.args[10].type = MTL_ARG_CODE_PIXEL_CONST;
+        pass.args[10].dest = 6;
+        pass.args[10].u.codeConst.index = CONST_SRC_CODE_LIGHT_POSITION;
+        pass.args[10].u.codeConst.firstRow = 0;
+        pass.args[10].u.codeConst.rowCount = 1;
+
+        pass.args[11].type = MTL_ARG_CODE_PIXEL_CONST;
+        pass.args[11].dest = 7;
+        pass.args[11].u.codeConst.index = CONST_SRC_CODE_LIGHT_DIFFUSE;
+        pass.args[11].u.codeConst.firstRow = 0;
+        pass.args[11].u.codeConst.rowCount = 1;
+
+        pass.args[12].type = MTL_ARG_CODE_PIXEL_CONST;
+        pass.args[12].dest = 8;
+        pass.args[12].u.codeConst.index = CONST_SRC_CODE_LIGHT_SPOTDIR;
+        pass.args[12].u.codeConst.firstRow = 0;
+        pass.args[12].u.codeConst.rowCount = 1;
+
+        pass.args[13].type = MTL_ARG_CODE_PIXEL_CONST;
+        pass.args[13].dest = 9;
+        pass.args[13].u.codeConst.index = CONST_SRC_CODE_LIGHT_SPOTFACTORS;
+        pass.args[13].u.codeConst.firstRow = 0;
+        pass.args[13].u.codeConst.rowCount = 1;
+
+        return technique;
+    }
+
+    MaterialTechniqueSet* GivenTechset(Zone& zone, MemoryManager& memory)
+    {
+        auto* techset = memory.Alloc<MaterialTechniqueSet>();
+        techset->name = "example_techset";
+        techset->worldVertFormat = MTL_WORLDVERT_TEX_4_NRM_2;
+
+        techset->techniques[TECHNIQUE_DEPTH_PREPASS] = GivenDepthPrepassTechnique(memory);
+        techset->techniques[TECHNIQUE_LIT_SPOT] = GivenLitSpotTechnique(memory);
+
+        zone.m_pools.AddAsset(std::make_unique<XAssetInfo<MaterialTechniqueSet>>(ASSET_TYPE_TECHNIQUE_SET, techset->name, techset));
+        return techset;
+    }
+} // namespace
+
+TEST_CASE("TechsetDumperIW3", "[iw3][techset][dumper]")
+{
+    Zone zone("MockZone", 0, GameId::IW3, GamePlatform::PC);
+    zone.Register();
+
+    MemoryManager memory;
+    MockSearchPath mockObjPath;
+    MockOutputPath mockOutput;
+    AssetDumpingContext context(zone, "", mockOutput, mockObjPath, std::nullopt);
+
+    GivenTechset(zone, memory);
+
+    techset::DumperIW3 dumper(true);
+
+    SECTION("Can dump techset")
+    {
+        std::string expected(R"TECHSET(
+"depth prepass":
+  example_zprepass;
+
+"lit spot":
+  example_lit_spot;
+)TECHSET");
+
+        dumper.Dump(context);
+
+        const auto* file = mockOutput.GetMockedFile("techsets/example_techset.techset");
+        REQUIRE(file);
+        REQUIRE(Trimmed(file->AsString()) == Trimmed(expected));
+    }
+
+    SECTION("Can dump simple technique")
+    {
+        std::string expected(R"TECHNIQUE(
+// TECHNIQUE FLAGS: 0x4
+{
+  stateMap "passthrough"; // TODO
+
+  vertexShader 3.0 "simple.hlsl"
+  {
+    // Omitted due to matching accessors: worldMatrix = constant.worldMatrix;
+    // Omitted due to matching accessors: viewProjectionMatrix = constant.viewProjectionMatrix;
+  }
+
+  pixelShader 3.0 "simple.hlsl"
+  {
+  }
+
+  vertex.position = code.position;
+}
+)TECHNIQUE");
+        dumper.Dump(context);
+
+        const auto* file = mockOutput.GetMockedFile("techniques/example_zprepass.tech");
+        REQUIRE(file);
+        REQUIRE(Trimmed(file->AsString()) == Trimmed(expected));
+    }
+
+    SECTION("Can dump advanced technique")
+    {
+        std::string expected(R"TECHNIQUE(
+// TECHNIQUE FLAGS: 0x10
+{
+  stateMap "passthrough"; // TODO
+
+  vertexShader 3.0 "advanced.hlsl"
+  {
+    // Omitted due to matching accessors: worldMatrix = constant.worldMatrix;
+    // Omitted due to matching accessors: baseLightingCoords = constant.baseLightingCoords;
+    // Omitted due to matching accessors: viewProjectionMatrix = constant.viewProjectionMatrix;
+    // Omitted due to matching accessors: fogConsts = constant.fogConsts;
+  }
+
+  pixelShader 3.0 "advanced.hlsl"
+  {
+    // Omitted due to matching accessors: attenuationSampler = sampler.attenuationSampler;
+    normalMapSampler = material.normalMap;
+    colorMapSampler = material.colorMap;
+    // Omitted due to matching accessors: modelLightingSampler = sampler.modelLightingSampler;
+    // Omitted due to matching accessors: fogColor = constant.fogColor;
+    // Omitted due to matching accessors: lightingLookupScale = constant.lightingLookupScale;
+    // Omitted due to matching accessors: lightPosition = constant.lightPosition;
+    // Omitted due to matching accessors: lightDiffuse = constant.lightDiffuse;
+    // Omitted due to matching accessors: lightSpotDir = constant.lightSpotDir;
+    // Omitted due to matching accessors: lightSpotFactors = constant.lightSpotFactors;
+  }
+
+  vertex.position = code.position;
+  vertex.color[0] = code.color;
+  vertex.texcoord[0] = code.texcoord[0];
+  vertex.normal = code.normal;
+  vertex.texcoord[2] = code.tangent;
+}
+)TECHNIQUE");
+        dumper.Dump(context);
+
+        const auto* file = mockOutput.GetMockedFile("techniques/example_lit_spot.tech");
+        REQUIRE(file);
+        REQUIRE(Trimmed(file->AsString()) == Trimmed(expected));
+    }
+}
diff --git a/test/ObjWritingTests/Game/IW3/Techset/ps_advanced.hlsl.cso b/test/ObjWritingTests/Game/IW3/Techset/ps_advanced.hlsl.cso
new file mode 100644
index 00000000..fe2d3be1
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diff --git a/test/ObjWritingTests/Game/IW3/Techset/ps_simple.hlsl.cso b/test/ObjWritingTests/Game/IW3/Techset/ps_simple.hlsl.cso
new file mode 100644
index 00000000..7b0d23c6
Binary files /dev/null and b/test/ObjWritingTests/Game/IW3/Techset/ps_simple.hlsl.cso differ
diff --git a/test/ObjWritingTests/Game/IW3/Techset/vs_advanced.hlsl.cso b/test/ObjWritingTests/Game/IW3/Techset/vs_advanced.hlsl.cso
new file mode 100644
index 00000000..d928f474
Binary files /dev/null and b/test/ObjWritingTests/Game/IW3/Techset/vs_advanced.hlsl.cso differ
diff --git a/test/ObjWritingTests/Game/IW3/Techset/vs_simple.hlsl.cso b/test/ObjWritingTests/Game/IW3/Techset/vs_simple.hlsl.cso
new file mode 100644
index 00000000..1d11cba2
Binary files /dev/null and b/test/ObjWritingTests/Game/IW3/Techset/vs_simple.hlsl.cso differ