texture convert

Source/MasterTestProject/DynamicTextureUtilities.cpp

@@ -63,14 +63,14 @@ void UDynamicTextureUtilities::UpdateTextureRegion(UTexture2D* Texture, int32 Mi
 	}
 }
 
-void UDynamicTextureUtilities::UpdateDynamicVectorTexture(const TArray<FLinearColor>& Source, UTexture2D* Texture)
+void UDynamicTextureUtilities::UpdateDynamicVectorTexture(const TArray<FLinearColor>& Source, UTexture2D* Texture, bool bFreeData)
 {
 	// Only handles 32-bit float textures
-	if (!Texture || Texture->GetPixelFormat() != PF_FloatRGB) return;
+	if (!Texture || Texture->GetPixelFormat() != PF_A32B32G32R32F) return;
 	// Shouldn't do anything if there's no data
 	if (Source.Num() < 1) return;
 
-	UpdateTextureRegion(Texture, 0, FUpdateTextureRegion2D(0, 0, 0, 0, Texture->GetSizeX(), Texture->GetSizeY()), Texture->GetSizeX() * sizeof(FLinearColor), sizeof(FLinearColor), (uint8*)Source.GetData(), false);
+	UpdateTextureRegion(Texture, 0, FUpdateTextureRegion2D(0, 0, 0, 0, Texture->GetSizeX(), Texture->GetSizeY()), Texture->GetSizeX() * sizeof(FLinearColor), sizeof(FLinearColor), (uint8*)Source.GetData(), bFreeData);
 }
 
 UTexture2D* UDynamicTextureUtilities::CreateTransientDynamicTexture(int32 Width, int32 Height, EPixelFormat PixelFormat)

Source/MasterTestProject/DynamicTextureUtilities.h

@@ -24,7 +24,7 @@ public:
 	static void UpdateTextureRegion(UTexture2D* Texture, int32 MipIndex, FUpdateTextureRegion2D Region, uint32 SrcPitch, uint32 SrcBpp, uint8* SrcData, bool bFreeData);
 	// Convenience wrapper for updating a dynamic texture with an array of
 	// FLinearColors.
-	static void UpdateDynamicVectorTexture(const TArray<FLinearColor>& Source, UTexture2D* Texture);
+	static void UpdateDynamicVectorTexture(const TArray<FLinearColor>& Source, UTexture2D* Texture, bool bFreeData = true);
 	// Sets up a component's material instance parameters (on all materials) for
 	// use with the supplied UTexture. The proper parameters (specified by
 	// IndexParameterName and TextureParameterName) should exist on the

Source/MasterTestProject/Tileset.cpp

@@ -344,37 +344,81 @@ void ATilesetActor::parsePointCloudTile(const TArray<uint8> data, FTile * tile)
 		UWorld* const World = GetWorld();
 		if (World)
 		{
+			int32 TextureSize = FMath::FloorToInt(FMath::Sqrt(instances_length)) + 1;
+			int32 fill = TextureSize*TextureSize - instances_length;
+
 			if (FeatureTableJSON->HasField("POSITION")) {
+				// POSITION = float32[3]
 				uint32 featureTableBinaryOffset = pntheader->getFeatureStart() + pntheader->featureTable.featureTableJSONByteLength;
 				TSharedPtr<FJsonObject> binaryBodyReference = FeatureTableJSON->GetObjectField("POSITION");
 				int32 byteOffset = binaryBodyReference->GetIntegerField("byteOffset");
 				uint8* start = (uint8*)(data.GetData() + pntheader->getFeatureBinaryStart() + byteOffset);
 
-				UTexture2D* points = UDynamicTextureUtilities::CreateDynamicTextureWithData(instances_length, start);
+				//TODO create wit copy 
+				//UTexture2D* points = UDynamicTextureUtilities::CreateDynamicTextureWithData(instances_length, start);
 
+				// creat pooint texture
+				TArray<FLinearColor> *Points = new TArray<FLinearColor>();
+				uint8* pos = start;
+				for (size_t i = 0; i < instances_length; i+=1)
+				{
+					Points->Add(FLinearColor(*((float*) pos), *((float*)(pos+4)), *((float*)(pos +8)), 1.0f));
+					pos += 12;
+				}
+				for (size_t i = 0; i < fill; i += 1)
+				{
+					Points->Add(FLinearColor(0.0f, 0.0f, 0.0f, 0.0f));
+				}
+				UTexture2D* Texture = UDynamicTextureUtilities::CreateTransientDynamicTexture(TextureSize, TextureSize, PF_A32B32G32R32F);
+				UDynamicTextureUtilities::UpdateDynamicVectorTexture(*Points, Texture);
+				UE_LOG(TILES, Warning, TEXT("Created Position Texture Number Points %d, TextureSize: %d, Fill: %d, "), instances_length, TextureSize, fill);
 
-				if (TextureTest && points) {
+				//ass texture to mAterial
+				if (TextureTest) {
 					UMaterialInstanceDynamic *Material = UMaterialInstanceDynamic::Create(TextureTest->GetStaticMeshComponent()->GetMaterial(0), nullptr);
-					Material->SetTextureParameterValue(FName("DynamicTexture"), points);
+					Material->SetTextureParameterValue(FName("DynamicTexture"), Texture);
 					TextureTest->GetStaticMeshComponent()->SetMaterial(0,Material);
 				}
-				/*
-				TArray<FVector> positons = getAsArray<FVector>(data.GetData(), (int32)(featureTableBinaryOffset + byteOffset), instances_length);
-				
-				FString outputString = "[";
+			}
+			else {
+				UE_LOG(TILES, Error, TEXT("Pointcloud Quantized not supported Position Required"));
+			}
 
-				for (FVector pos : positons)
+			if (FeatureTableJSON->HasField("RGB")) {
+				// RGB = uint8[3]
+				uint32 featureTableBinaryOffset = pntheader->getFeatureStart() + pntheader->featureTable.featureTableJSONByteLength;
+				TSharedPtr<FJsonObject> binaryBodyReference = FeatureTableJSON->GetObjectField("RGB");
+				int32 byteOffset = binaryBodyReference->GetIntegerField("byteOffset");
+				uint8* start = (uint8*)(data.GetData() + pntheader->getFeatureBinaryStart() + byteOffset);
+
+				// creat pooint texture
+				TArray<FLinearColor> *ColorRGB = new TArray<FLinearColor>();
+				uint8* pos = start;
+				UE_LOG(TILES, Error, TEXT("Color %s"), *FLinearColor((*pos) / 255, (*(pos + 1)) / 255, (*(pos + 2)) / 255).ToString()  );
+				for (size_t i = 0; i < instances_length; i += 1)
 				{
-					outputString += "[" + pos.ToString() + "] ";
+
+					ColorRGB->Add(FLinearColor((*pos)/255, (*(pos + 1))/255, (*(pos + 2))/255));
+					pos += 3;
 				}
-				outputString += "]";
-				UE_LOG(TILES, Warning, TEXT("PointCloudHeader 3D Model Positions %s"), *outputString);*/
-			}
-			else {
-				UE_LOG(TILES, Error, TEXT("Pointcloud Quantized not supported"));
+				for (size_t i = 0; i < fill; i += 1)
+				{
+					ColorRGB->Add(FLinearColor(1.0f, 0.0f, 0.0f));
+				}
+				UTexture2D* Texture = UDynamicTextureUtilities::CreateTransientDynamicTexture(TextureSize, TextureSize, PF_A32B32G32R32F);
+				UDynamicTextureUtilities::UpdateDynamicVectorTexture(*ColorRGB, Texture);
+				UE_LOG(TILES, Warning, TEXT("Created Color Texture Number Points %d, TextureSize: %d, Fill: %d, "), instances_length, TextureSize, fill);
 
+				//ass texture to mAterial
+				if (TextureTest) {
+					UMaterialInstanceDynamic *Material = UMaterialInstanceDynamic::Create(TextureTest->GetStaticMeshComponent()->GetMaterial(0), nullptr);
+					Material->SetTextureParameterValue(FName("DynamicTexture"), Texture);
+					TextureTest->GetStaticMeshComponent()->SetMaterial(0, Material);
+				}
 			}
 
+
+
 		}
 	}
 	UE_LOG(TILES, Log, TEXT("PointCloudHeader: End"));