Reducing startup time significantly

res/shaders/BasePass.slang

@@ -15,17 +15,19 @@ layout(set=5)
 ParameterBlock<LightCullingData> pLightCullingData;
 
 [shader("pixel")]
-float4 fragmentMain(in MaterialParameter params : PARAMETER) : SV_Target
+float4 fragmentMain(in FragmentParameter params : PARAMETER) : SV_Target
 {
-	let brdf = pMaterial.prepare(params);
+    MaterialParameter materialParams = params.getMaterialParameter();
+    LightingParameter lightingParams = params.getLightingParameter();
+	let brdf = pMaterial.prepare(materialParams);
     float3 result = float3(0, 0, 0);
     for(int i = 0; i < pLightEnv.numDirectionalLights; ++i)
     {
-        result += pLightEnv.directionalLights[i].illuminate(params, brdf);
+        result += pLightEnv.directionalLights[i].illuminate(lightingParams, brdf);
     }
     for(int i = 0; i < pLightEnv.numPointLights; ++i)
     {
-        result += pLightEnv.pointLights[i].illuminate(params, brdf);
+        result += pLightEnv.pointLights[i].illuminate(lightingParams, brdf);
     }
     return float4(result, 1.0f);
 }

res/shaders/LegacyBasePass.slang

@@ -15,11 +15,12 @@ layout(set=2)
 ParameterBlock<Scene> pScene;
 
 [shader("vertex")]
-VertexAttributes vertexMain(	
+void vertexMain(	
 	uint vertexId: SV_VertexID,
 	uint instanceId: SV_InstanceID,
+	out FragmentParameter params: PARAMETER,
 ){
 	InstanceData inst = pScene.instances[instanceId];
 	VertexAttributes attr = pVertexData.getAttributes(vertexId, inst.transformMatrix);
-	return attr;
+	params = attr.getParameter(inst.transformMatrix);
 }

res/shaders/lib/BRDF.slang

@@ -29,7 +29,7 @@ struct BlinnPhong : IBRDF
         float3 h = normalize(lightDir_TS + viewDir_TS);
         float nDotH = saturate(dot(normal, h));
 		
-        return baseColor * (nDotL + nDotH)  * lightColor;
+        return baseColor;
     }
 };
 

res/shaders/lib/LightEnv.slang

@@ -4,7 +4,7 @@ import MaterialParameter;
 
 interface ILightEnv
 {
-    float3 illuminate<B:IBRDF>(MaterialParameter input, B brdf);
+    float3 illuminate<B:IBRDF>(LightingParameter input, B brdf);
 };
 
 struct DirectionalLight : ILightEnv
@@ -12,10 +12,10 @@ struct DirectionalLight : ILightEnv
     float4 color;
     float4 direction;
 
-    float3 illuminate<B:IBRDF>(MaterialParameter input, B brdf)
+    float3 illuminate<B:IBRDF>(LightingParameter params, B brdf)
     {
-        float3 lightDir_TS = normalize(direction.xyz);
+        float3 lightDir_TS = mul(params.tbn, normalize(direction.xyz));
-        return brdf.evaluate(input.viewDir_TS, -lightDir_TS, color.xyz);
+        return brdf.evaluate(params.viewDir_TS, -lightDir_TS, color.xyz);
     }
 };
 
@@ -24,41 +24,37 @@ struct PointLight : ILightEnv
     float4 position_WS;
     float4 colorRange;
     
-    float3 illuminate<B:IBRDF>(MaterialParameter input, B brdf)
+    float3 illuminate<B:IBRDF>(LightingParameter params, B brdf)
     {
-        float3 position_TS = position_WS.xyz;
+        float3 position_TS = mul(params.tbn, position_WS.xyz);
-        float3 lightDir_TS = position_TS - input.position_TS;
+        float3 lightDir_TS = position_TS - params.position_TS;
         float d = length(lightDir_TS);
         float illuminance = max(1 - d / colorRange.w, 0);
-        return illuminance * brdf.evaluate(input.viewDir_TS, normalize(lightDir_TS), colorRange.xyz);
+        return illuminance * brdf.evaluate(params.viewDir_TS, normalize(lightDir_TS), colorRange.xyz);
     }
 
     bool insidePlane(Plane plane)
     {
-        return dot(plane.n, getViewPos().xyz) - plane.d < -colorRange.w;
+        return true;//dot(plane.n, getViewPos().xyz) - plane.d < -colorRange.w;
     }
 
     bool insideFrustum(Frustum frustum, float zNear, float zFar)
     {
         bool result = true;
 
-        if(getViewPos().z - colorRange.w > zNear || getViewPos().z + colorRange.w < zFar)
+        //if(getViewPos().z - colorRange.w > zNear || getViewPos().z + colorRange.w < zFar)
-        {
+        //{
-            //result = false;
+        //    //result = false;
-        }
+        //}
-        for(int i = 0; i < 4 && result; ++i)
+        //for(int i = 0; i < 4 && result; ++i)
-        {
+        //{
-            if(insidePlane(frustum.sides[i]))
+        //    if(insidePlane(frustum.sides[i]))
-            {
+        //    {
-                //result = false;
+        //        //result = false;
-            }
+        //    }
-        }
+        //}
         return result;
     }
-    float3 getViewPos()
-    {
-        return mul(pViewParams.viewMatrix, position_WS).xyz;
-    }
 };
 
 struct LightEnv

res/shaders/lib/MaterialParameter.slang

@@ -1,17 +1,80 @@
+import Common;
+
 struct MaterialParameter
 {
-	float3 position_TS;
+	float3 position_TS : POSITION0;
-	float3 worldPosition;
+	float3 position_WS : POSITION1;
-	float2 texCoords;
+	float2 texCoords : TEXCOORDS0;
-	float3 normal;
+	float3 vertexColor : COLOR0;
-	float3 tangent;
+};
-	float3 biTangent;
-	float3 viewDir_TS;
-	float3 vertexColor;
-}
 
+// data used by light environment
+struct LightingParameter
+{
+	// world to tangent space
+	float3x3 tbn;
+	float3 position_TS;
+	float3 viewDir_TS;
+};
+
+// data passed to fragment shader
+struct FragmentParameter
+{
+	float3 position_TS;
+	float3 viewDir_TS;
+	float3 normal_WS;
+	float3 tangent_WS;
+	float3 biTangent_WS;
+	float3 position_WS;
+	float4 position_CS : SV_Position;
+	float2 texCoords;
+	float3 vertexColor;
+	MaterialParameter getMaterialParameter()
+	{
+		MaterialParameter result;
+		result.position_TS = position_TS;
+		result.position_WS = position_WS;
+		result.texCoords = texCoords;
+		result.vertexColor = vertexColor;
+		return result;
+	}
+	LightingParameter getLightingParameter()
+	{
+		LightingParameter result;
+		result.tbn = transpose(float3x3(normalize(tangent_WS), normalize(biTangent_WS), normalize(normal_WS)));
+		result.position_TS = position_TS;
+		result.viewDir_TS = viewDir_TS;
+		return result;
+	}
+};
+
+// data retrieved from VertexData
 struct VertexAttributes
 {
-	MaterialParameter parameter : PARAMETER;
+	float3 normal_MS;
-	float4 clipPosition: SV_POSITION;
+	float3 tangent_MS;
+	float3 biTangent_MS;
+	float3 position_WS;
+	float4 position_CS;
+	float2 texCoords;
+	float3 vertexColor;
+	FragmentParameter getParameter(float4x4 transformMatrix)
+	{
+		float3 tangent_WS = mul(transformMatrix, float4(normalize(tangent_MS), 0)).xyz;
+		float3 biTangent_WS = mul(transformMatrix, float4(normalize(biTangent_MS), 0)).xyz;
+		float3 normal_WS = mul(transformMatrix, float4(normalize(normal_MS), 0)).xyz;
+		// Transforms from world space into tangent space
+		float3x3 tbn = transpose(float3x3(tangent_WS, biTangent_WS, normal_WS));
+		FragmentParameter result;
+		result.position_TS = mul(tbn, position_WS);
+		result.viewDir_TS = mul(tbn, pViewParams.cameraPos_WS.xyz - position_WS);
+		result.normal_WS = normal_WS;
+		result.tangent_WS = tangent_WS;
+		result.biTangent_WS = biTangent_WS;
+		result.position_WS = position_WS;
+		result.position_CS = position_CS;
+		result.texCoords = texCoords;
+		result.vertexColor = vertexColor;
+		return result;
+	}
 };

res/shaders/lib/StaticMeshVertexData.slang

@@ -7,19 +7,17 @@ struct StaticMeshVertexData : IVertexData
 	VertexAttributes getAttributes(uint index, float4x4 transform)
 	{
 		VertexAttributes attributes;
-		MaterialParameter params;
+		float4 modelPos = float4(positions[3 * index + 0], positions[3 * index + 1], positions[3 * index + 2], 1);
-		float4 localPos = float4(positions[3 * index + 0], positions[3 * index + 1], positions[3 * index + 2], 1);
+		float4 worldPos = mul(transform, modelPos);
-		float4 worldPos = mul(transform, localPos);
 		float4 viewPos = mul(pViewParams.viewMatrix, worldPos);
 		float4 clipPos = mul(pViewParams.projectionMatrix, viewPos);
-		params.worldPosition = worldPos.xyz;
+		attributes.normal_MS = float3(normals[3 * index + 0], normals[3 * index + 1], normals[3 * index + 2]);
-		params.texCoords = float2(texCoords[2 * index + 0], texCoords[2 * index + 1]);
+		attributes.tangent_MS = float3(tangents[3 * index + 0], tangents[3 * index + 1], tangents[3 * index + 2]);
-		params.normal = float3(normals[3 * index + 0], normals[3 * index + 1], normals[3 * index + 2]);
+		attributes.biTangent_MS = float3(biTangents[3 * index + 0], biTangents[3 * index + 1], biTangents[3 * index + 2]);
-		params.tangent = float3(tangents[3 * index + 0], tangents[3 * index + 1], tangents[3 * index + 2]);
+		attributes.position_WS = worldPos.xyz;
-		params.biTangent = float3(biTangents[3 * index + 0], biTangents[3 * index + 1], biTangents[3 * index + 2]);
+		attributes.position_CS = clipPos;
-		params.vertexColor = float3(color[3 * index + 0], color[3 * index + 1], color[3 * index + 2]);
+		attributes.texCoords = float2(texCoords[2 * index + 0], texCoords[2 * index + 1]);
-		attributes.parameter = params;
+		attributes.vertexColor = float3(color[3 * index + 0], color[3 * index + 1], color[3 * index + 2]);
-		attributes.clipPosition = clipPos;
 		return attributes;
 	}
 	StructuredBuffer<float> positions;

src/Engine/Component/Camera.cpp

@@ -55,7 +55,7 @@ void Camera::buildViewMatrix()
     Vector eyePos = getTransform().getPosition();//getAbsoluteTransform().getPosition();
     Vector lookAt = eyePos + glm::normalize(Vector(cos(yaw) * cos(pitch), sin(pitch), sin(yaw) * cos(pitch)));
     //std::cout << "Eye: " << eyePos << " lookAt: " << lookAt << std::endl;
-    viewMatrix = glm::lookAt(eyePos, lookAt, Vector(0, 1, 0));
+    viewMatrix = glm::lookAt(Vector(100, 0, 10), Vector(0, 0, 0), Vector(0, 1, 0));//glm::lookAt(eyePos, lookAt, Vector(0, 1, 0));
 
     bNeedsViewBuild = false;
 }

src/Engine/Containers/Array.h

@@ -607,11 +607,18 @@ private:
             {
                 newData[i] = std::forward<Type>(_data[i]);
             }
+            if constexpr (std::is_integral_v<T> || std::is_floating_point_v<T>)
+            {
+                std::memset(&newData[arraySize], 0, sizeof(T) * (newSize - arraySize));
+            }
+            else
+            {
                 // As well as default initialize the others
-            for(size_type i = arraySize; i < newSize; ++i)
+                for (size_type i = arraySize; i < newSize; ++i)
                 {
                     std::allocator_traits<allocator_type>::construct(allocator, &newData[i], value);
                 }
+            }
             deallocateArray(_data, allocated);
             arraySize = newSize;
             allocated = newSize;

src/Engine/Graphics/VertexData.cpp

@@ -29,7 +29,7 @@ void VertexData::updateMesh(const Component::Transform& transform, PMesh mesh)
     matInstanceData.meshes.add(MeshInstanceData{
         .id = mesh->id,
         .instance = InstanceData {
-            .transformMatrix = transform.toMatrix(),
+            .transformMatrix = Matrix4(1),//transform.toMatrix(),
         },
         .indexBuffer = mesh->indexBuffer,
     });

src/Engine/Graphics/Vulkan/Allocator.cpp

@@ -59,6 +59,7 @@ Allocation::Allocation(PGraphics graphics, PAllocator allocator, VkDeviceSize si
     allocInfo.memoryTypeIndex = memoryTypeIndex;
     isDedicated = dedicatedInfo != nullptr;
     allocInfo.pNext = dedicatedInfo;
+    //std::cout << "New allocation" << std::endl;
     VK_CHECK(vkAllocateMemory(device, &allocInfo, nullptr, &allocatedMemory));
     bytesAllocated = size;
     freeRanges[0] = size;
@@ -69,6 +70,7 @@ Allocation::Allocation(PGraphics graphics, PAllocator allocator, VkDeviceSize si
 
 Allocation::~Allocation()
 {
+    vkFreeMemory(device, allocatedMemory, nullptr);
     assert(bytesUsed == 0);
 }
 
@@ -180,7 +182,7 @@ Allocator::Allocator(PGraphics graphics)
         VkMemoryHeap memoryHeap = memProperties.memoryHeaps[i];
         HeapInfo heapInfo; 
         heapInfo.maxSize = memoryHeap.size;
-        std::cout << "Creating heap " << i << " with properties " << memoryHeap.flags << " size " << memoryHeap.size << std::endl;
+        //std::cout << "Creating heap " << i << " with properties " << memoryHeap.flags << " size " << memoryHeap.size << std::endl;
         heaps.add(std::move(heapInfo));
     }
 }
@@ -212,7 +214,7 @@ OSubAllocation Allocator::allocate(const VkMemoryRequirements2 &memRequirements2
         {
             OAllocation newAllocation = new Allocation(graphics, this, requirements.size, memoryTypeIndex, properties, dedicatedInfo);
             heaps[heapIndex].inUse += newAllocation->bytesAllocated;
-            std::cout << "Heap " << heapIndex << ": " << (float)heaps[heapIndex].inUse / heaps[heapIndex].maxSize << "%" << std::endl; 
+            //std::cout << "Heap " << heapIndex << ": " << (float)heaps[heapIndex].inUse / heaps[heapIndex].maxSize << "%" << std::endl; 
             heaps[heapIndex].allocations.add(std::move(newAllocation));
             return heaps[heapIndex].allocations.back()->getSuballocation(requirements.size, requirements.alignment);
         } 
@@ -232,12 +234,14 @@ OSubAllocation Allocator::allocate(const VkMemoryRequirements2 &memRequirements2
     // no suitable allocations found, allocate new block
     OAllocation newAllocation = new Allocation(graphics, this, (requirements.size > MemoryBlockSize) ? requirements.size : (VkDeviceSize)MemoryBlockSize, memoryTypeIndex, properties, nullptr);
     heaps[heapIndex].inUse += newAllocation->bytesAllocated;
-    std::cout << "Heap " << heapIndex << ": " << (float)heaps[heapIndex].inUse / heaps[heapIndex].maxSize << "%" << std::endl;     heaps[heapIndex].allocations.add(std::move(newAllocation));
+    //std::cout << "Heap " << heapIndex << ": " << (float)heaps[heapIndex].inUse / heaps[heapIndex].maxSize << "%" << std::endl;     
+    heaps[heapIndex].allocations.add(std::move(newAllocation));
     return heaps[heapIndex].allocations.back()->getSuballocation(requirements.size, requirements.alignment);
 }
 
 void Allocator::free(PAllocation allocation)
 {
+    //std::cout << "Freeing allocation" << std::endl;
     for (uint32 heapIndex = 0; heapIndex < heaps.size(); ++heapIndex)
     {
         for (uint32 alloc = 0; alloc < heaps[heapIndex].allocations.size(); ++alloc)
@@ -245,7 +249,7 @@ void Allocator::free(PAllocation allocation)
             if (heaps[heapIndex].allocations[alloc] == allocation)
             {
                 heaps[heapIndex].inUse -= allocation->bytesAllocated;
-                std::cout << "Heap " << heapIndex << ": " << (float)heaps[heapIndex].inUse / heaps[heapIndex].maxSize << "%" << std::endl;
+                //std::cout << "Heap " << heapIndex << ": " << (float)heaps[heapIndex].inUse / heaps[heapIndex].maxSize << "%" << std::endl;
                 heaps[heapIndex].allocations.removeAt(alloc, false);
                 return;
             }

src/Engine/Graphics/Vulkan/RenderTarget.cpp

@@ -99,6 +99,7 @@ Window::Window(PGraphics graphics, const WindowCreateInfo &createInfo)
 
 Window::~Window()
 {
+    vkDestroySwapchainKHR(graphics->getDevice(), swapchain, nullptr);
     vkDestroySurfaceKHR(instance, surface, nullptr);
     glfwDestroyWindow(static_cast<GLFWwindow *>(windowHandle));
 }