(39) Rama's Extra Blueprint Nodes for You as a Plugin, No C++ Required!

[Rama]

Map Range Clamped



(Live as of April 22nd, 2015)

Dear Community,

This new node of mine, fixes an issue with Map Range where the output value is not clamped to the output range.

So if you use the current node, Map Range like so:

Input:  0 to 100
Output: 0 to 1
Value:  200

Then Map Range will give you 2

My node, Map Range Clamped, will give you the maximum of the output range if the value is in excess, and will still correctly return 1, the maximum output value that you supplied.

So basically if you say "I want to get back a value between 0 and 1" then my node guarantees that is exactly what will happen!

~~~

UMG Sliders

A very important use of this node is with UMG Sliders!

If you supply > 1, a UMG slider thumb will simply disappear!

My Map Range Clamped node will enable you to more easily and intuitively work with UMG sliders and do range mappings.

~~~

Range Mapping?

Every UMG slider goes from a value of 0 to 1, however the value you want to get from the slider might be -50 to 50, or 0 to 100, or -1 to 12.5.

Using my Map Range Clamped node you can easily map to/from the UMG slider range of 0 to 1 (normalized range).


~~~

Download and plug in!

Latest plugin download is here:
https://wiki.unrealengine.com/File:VictoryPlugin.zip

Enjoy!

Rama

[Netrve]

Hey guys,
if anyone wants it, I created a simple python script which downloads Rama's plugin and unzips it into your plugin directory, it doesn't check which version you downloaded as I don't know how to get the file version from the wiki. If anyone knows how please tell me, I will add it to the script. I just created it because I'm really lazy...
Link

Greetings,
Dakraid

[Rama]

Rama Red Hot News Flash

I turned my 14 Config BP Node Suite into 2 Wild Card Nodes!

Dear Community,

After delving deep into the engine code, and learning a lot about the special K2 nodes that require special classes and special code, I've learned how to use wild cards!

I've compacted the 14 nodes of my Config BP Suite into just 2 !

My 2 nodes support 7 different variable types!

Check out this video!

The single pin in my 2 nodes can become 7 different variable types!

The UE4 Engine Pull Request for this is here:

https://github.com/EpicGames/UnrealEngine/pull/1083
(You need to be logged into your UE4 Github account to view this link)

If you'd like to see these 2 Wild nodes added to the engine you can post at the link above!

♥

Rama

[RTView]

Hey Rama, the rename/move screenshot node made me think about this: https://docs.unrealengine.com/latest...screenshottool
Do you think there's a way to access that through BP?
Would be great to get access to buffers, masks and EXR's within BP!

[Rama]

Hey Rama, the rename/move screenshot node made me think about this: https://docs.unrealengine.com/latest...screenshottool
Do you think there's a way to access that through BP?
Would be great to get access to buffers, masks and EXR's within BP!

If you do any preliminary research on this let me know what you find!



Rama

[Rama]

Set Volume of Any Sound Class

Any Time From Anywhere!

You can use this node to set the volume of any sound class, any time, from anywhere!

My node allows you to offer people an audio slider that is a continuous float value range based only on the slider increments.

Enjoy!

~~~



And you get get current sound volume of any class very easily too!

Rama

Wiki Download Page
https://wiki.unrealengine.com/File:VictoryPlugin.zip

[Rama]

Get a Hard-drive accurate listing of all Save Game Objects!

Dear Community,

This node gives you a hard-drive accurate listing of all save game files that you've created!

I am referring to UE4's Save Object system!

You can now access a full listing in a developer build or in a packaged game, to know all the save files that have been saved!

These save files are stored in GameDir/Saved/SaveGames



~~~

UE4 Blueprint Save System?

If you did not know, you can use UE4's save system like this:

1. Create a new blueprint based on SaveGame
2. Add your variables to the blueprint that you want to save the values of
3. in level BP or some other blueprint, create a save game object, and set the values of that object
4. Save this object to a Save Game Slot, as shown in my pictures
5. You can load a save game object from a Slot name at any time!

6. Now with my new Victory BP Library, you can obtain a full listing of all existing save games as stored on your computer's hard disk! This let's you know whether a file exists before you try to load it! You can also find out how many save files exist from within BP!

~~~

Most Recent Plugin Download From UE4 Wiki
https://wiki.unrealengine.com/File:VictoryPlugin.zip

Enjoy!



Rama

[Jamendxman3]

Thanks for posting this Rama.

[Rama]

Save Linear Color Array To Disk as PNG Image!



Live as of 4/27/15

Dear Community,

I've created a new node that allows you to save a Linear Color array to disk as a PNG image!

So you can draw transparency using the Alpha channel of the Linear Color!

For those who have not used Linear Color much, it has 4 floats (R G B A) and so saving to PNG and supporting transparency is easy!

~~~

Bonus ~ I create target directory for you!

My node will create the directory you are trying to save to if it does not already exist!

This can be very helpful if you delete your whole generated image folder at once!

~~~

Absolute File Paths

This node receives absolute file paths, you can use my Path nodes to get various absolute paths that are relative to your project directory!

Victory BP Library Path Nodes (link inside this thread)
https://forums.unrealengine.com/show...l=1#post234711

~~~

Error String

I provide you with an Error string to help narrow down the reason the node returned false, if it does!

Even more debugging info for you!

The most common error will be that your array size does not equal Width x Height that you inputted into the node.

Solution:

You can avoid this by using variables for Width and Height and multiplying them together and using that as the max for the for loop where you initialize the image to black (see picture above)!

If you use my method, make sure the for loop first index is 1 not 0 !

~~~

Post Your BP-Generated Images!

Feel free to post images you create using this node!

~~~

My C++ Code For You!

Here's the entire C++ code for my node!

If you use it please credit me somewhere appropriate!

bool UVictoryBPFunctionLibrary::Victory_SavePixels(const FString& FullFilePath,int32 Width, int32 Height, const TArray<FLinearColor>& ImagePixels, FString& ErrorString)
{
	if(FullFilePath.Len() < 1) 
	{
		ErrorString = "No file path";
		return false;
	}
	//~~~~~~~~~~~~~~~~~
	
	//Ensure target directory exists, 
	//		_or can be created!_ <3 Rama
	FString NewAbsoluteFolderPath = FPaths::GetPath(FullFilePath);
	FPaths::NormalizeDirectoryName(NewAbsoluteFolderPath);
	if(!VCreateDirectory(NewAbsoluteFolderPath)) 
	{
		ErrorString = "Folder could not be created, check read/write permissions~ " + NewAbsoluteFolderPath;
		return false;
	}
	
	//Create FColor version
	TArray<FColor> ColorArray;
	for(const FLinearColor& Each : ImagePixels)
	{
		ColorArray.Add(Each);
	}
	 
	if(ColorArray.Num() != Width * Height) 
	{
		ErrorString = "Error ~ height x width is not equal to the total pixel array length!";
		return false;
	}
	  
	//Remove any supplied file extension and/or add accurate one
	FString FinalFilename = FPaths::GetBaseFilename(FullFilePath, false) + ".png";  //false = dont remove path

	//~~~
	
	TArray<uint8> CompressedPNG;
	FImageUtils::CompressImageArray( 
		Width, 
		Height, 
		ColorArray, 
		CompressedPNG
	);
	    
	ErrorString = "Success! or if returning false, the saving of file to disk did not succeed for File IO reasons";
	return FFileHelper::SaveArrayToFile(CompressedPNG, *FinalFilename);
}

~~~

Most Recent Plugin Download From UE4 Wiki
https://wiki.unrealengine.com/File:VictoryPlugin.zip




Rama

[Zeustiak]

Interesting. I feel like I could do quite a few things with that node, though Minimap is the most applicable thing that comes to mind.

Not sure when I might put it to use, but if I do I will post the results here.

[Tom Shannon]

Rama, you stud. I hope to show what I'm doing with it soon.

[J. J. Franzen]

Rama, you are an unstoppable coding machine! Thank you for continuing to kick such ***! Cheers!

J^2

[Rama]

Rama, you stud. I hope to show what I'm doing with it soon.

Rama, you are an unstoppable coding machine! Thank you for continuing to kick such ***! Cheers!

J^2

Hee hee! You're welcome!

I look forward to any pics you choose to share of the pics you generate using my new node!

Rama

[TK-Master]

Hey Rama!
I never posted in this thread before, even though I have used your plugin quite a lot! (shame on me..) So let me first take a minute to thank you for all the awesome work you have done! not only some of these nodes are useful (or even essential!) but the plugin as a whole serves as a great base plugin and C++ example.

In fact, you inspired me to make a plugin that I was planing to release with all the custom nodes I have been using in my projects over the last year but apparently I'm way too lazy to finish it

I call it the "Math Plugin" , it includes various nodes starting from simple (missing) nodes like negate int/float, to more advanced intersection checks (to be used as collision check alternatives etc.)




Let me know if you find any of these interesting.. It would be kinda cool to have some of these added to your plugin if you think they are useful

[Rama]

Hi there TK-Master!

Rest of community is invited to chime in as to which of your nodes they would like, I personally think that the Is Point in Box, that receives the extent and center of box, would be great! (FBox not exposed to BP yet as far as I know)

Line to Line Intersection
Line Inside Sphere (is this an intersection or whole line has to be inside sphere?)
Closest Points between Two Line Segements
Project Point onto Line
Closest Point on Sphere to Line
Closest Point on Line Segment

Set Vector Length
Increment Float
Increment Integer
IsEven
IsPowerOf2
IsMultipleOf
RoundToNearestMultiple
GridSnap


Would all be great!

I think a lot of people will love the Geometry functions and Grid Snap feature!

And the various math functions will be very helpful !

Thanks!

Rama