Improve directional shadow integration GT framing

tests/Rendering/integration/directional_shadow_scene/main.cpp

@@ -93,36 +93,45 @@ Mesh* CreateGroundMesh() {
     params.guid = ResourceGUID::Generate(params.path);
     mesh->Initialize(params);
 
-    StaticMeshVertex vertices[4] = {};
-    vertices[0].position = Vector3(-4.5f, 0.0f, 1.5f);
-    vertices[0].normal = Vector3::Up();
-    vertices[0].uv0 = Vector2(0.0f, 1.0f);
-    vertices[1].position = Vector3(-4.5f, 0.0f, 9.5f);
-    vertices[1].normal = Vector3::Up();
-    vertices[1].uv0 = Vector2(0.0f, 0.0f);
-    vertices[2].position = Vector3(4.5f, 0.0f, 1.5f);
-    vertices[2].normal = Vector3::Up();
-    vertices[2].uv0 = Vector2(1.0f, 1.0f);
-    vertices[3].position = Vector3(4.5f, 0.0f, 9.5f);
-    vertices[3].normal = Vector3::Up();
-    vertices[3].uv0 = Vector2(1.0f, 0.0f);
+    std::vector<StaticMeshVertex> vertices;
+    std::vector<uint32_t> indices;
+    vertices.reserve(8);
+    indices.reserve(12);
+
+    AppendQuadFace(
+        vertices, indices,
+        Vector3(-8.0f, 0.0f, 0.5f),
+        Vector3(-8.0f, 0.0f, 12.0f),
+        Vector3(8.0f, 0.0f, 0.5f),
+        Vector3(8.0f, 0.0f, 12.0f),
+        Vector3::Up());
+    AppendQuadFace(
+        vertices, indices,
+        Vector3(-8.0f, 0.0f, 12.0f),
+        Vector3(8.0f, 0.0f, 12.0f),
+        Vector3(-8.0f, 6.0f, 12.0f),
+        Vector3(8.0f, 6.0f, 12.0f),
+        Vector3::Back());
 
-    const uint32_t indices[6] = { 0, 1, 2, 2, 1, 3 };
     mesh->SetVertexData(
-        vertices,
-        sizeof(vertices),
-        4,
+        vertices.data(),
+        vertices.size() * sizeof(StaticMeshVertex),
+        static_cast<uint32_t>(vertices.size()),
         sizeof(StaticMeshVertex),
         VertexAttribute::Position | VertexAttribute::Normal | VertexAttribute::UV0);
-    mesh->SetIndexData(indices, sizeof(indices), 6, true);
-    const Bounds bounds(Vector3(0.0f, 0.0f, 5.5f), Vector3(9.0f, 0.1f, 8.0f));
+    mesh->SetIndexData(
+        indices.data(),
+        indices.size() * sizeof(uint32_t),
+        static_cast<uint32_t>(indices.size()),
+        true);
+    const Bounds bounds(Vector3(0.0f, 3.0f, 6.25f), Vector3(16.0f, 6.0f, 11.5f));
     mesh->SetBounds(bounds);
 
     MeshSection section = {};
     section.baseVertex = 0;
-    section.vertexCount = 4;
+    section.vertexCount = static_cast<uint32_t>(vertices.size());
     section.startIndex = 0;
-    section.indexCount = 6;
+    section.indexCount = static_cast<uint32_t>(indices.size());
     section.materialID = 0;
     section.bounds = bounds;
     mesh->AddSection(section);
@@ -279,11 +288,11 @@ void DirectionalShadowSceneTest::SetUp() {
     mGroundMaterial = CreateForwardLitMaterial(
         "DirectionalShadowGround",
         "Tests/Rendering/DirectionalShadowGround.material",
-        Vector4(0.82f, 0.83f, 0.86f, 1.0f));
+        Vector4(0.92f, 0.93f, 0.96f, 1.0f));
     mCasterMaterial = CreateForwardLitMaterial(
         "DirectionalShadowCaster",
         "Tests/Rendering/DirectionalShadowCaster.material",
-        Vector4(0.82f, 0.34f, 0.24f, 1.0f));
+        Vector4(0.72f, 0.22f, 0.16f, 1.0f));
 
     BuildScene();
 
@@ -363,18 +372,18 @@ void DirectionalShadowSceneTest::BuildScene() {
     camera->SetNearClipPlane(0.1f);
     camera->SetFarClipPlane(100.0f);
     camera->SetClearColor(XCEngine::Math::Color(0.03f, 0.03f, 0.05f, 1.0f));
-    cameraObject->GetTransform()->SetLocalPosition(Vector3(0.0f, 2.2f, -1.8f));
+    cameraObject->GetTransform()->SetLocalPosition(Vector3(0.0f, 2.6f, -4.6f));
     cameraObject->GetTransform()->SetLocalRotation(
-        Quaternion::LookRotation(Vector3(0.0f, -0.22f, 1.0f).Normalized()));
+        Quaternion::LookRotation(Vector3(0.0f, -0.10f, 1.0f).Normalized()));
 
     GameObject* lightObject = mScene->CreateGameObject("MainDirectionalLight");
     auto* light = lightObject->AddComponent<LightComponent>();
     light->SetLightType(LightType::Directional);
     light->SetColor(XCEngine::Math::Color(1.0f, 1.0f, 0.97f, 1.0f));
-    light->SetIntensity(1.8f);
+    light->SetIntensity(2.1f);
     light->SetCastsShadows(true);
     lightObject->GetTransform()->SetLocalRotation(
-        Quaternion::LookRotation(Vector3(-0.32f, -0.78f, -0.54f).Normalized()));
+        Quaternion::LookRotation(Vector3(0.55f, -0.35f, 0.76f).Normalized()));
 
     GameObject* groundObject = mScene->CreateGameObject("Ground");
     auto* groundMeshFilter = groundObject->AddComponent<MeshFilterComponent>();
@@ -385,8 +394,8 @@ void DirectionalShadowSceneTest::BuildScene() {
     groundMeshRenderer->SetReceiveShadows(true);
 
     GameObject* casterObject = mScene->CreateGameObject("CasterCube");
-    casterObject->GetTransform()->SetLocalPosition(Vector3(0.0f, 0.8f, 4.5f));
-    casterObject->GetTransform()->SetLocalScale(Vector3(1.2f, 1.6f, 1.2f));
+    casterObject->GetTransform()->SetLocalPosition(Vector3(-3.2f, 1.4f, 7.4f));
+    casterObject->GetTransform()->SetLocalScale(Vector3(1.4f, 2.8f, 1.4f));
     auto* casterMeshFilter = casterObject->AddComponent<MeshFilterComponent>();
     auto* casterMeshRenderer = casterObject->AddComponent<MeshRendererComponent>();
     casterMeshFilter->SetMesh(ResourceHandle<Mesh>(mCubeMesh));