Why is my custom Blueprint node not visible?

Development Programming & Scripting Blueprint
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1

I made a C++ code for a custom blueprint node, but I can’t see it in the graph editor. Did I forget to do something. This is my code.

Header

#pragma once
#include "EdGraph/EdGraphNode.h"
#include "EdGraph/EdGraphSchema.h"
#include "RenderViewToTexture.generated.h"

/**
 * 
 */
UCLASS()
class URenderViewToTexture : public UEdGraphNode
{
	GENERATED_UCLASS_BODY()

	UFUNCTION(BlueprintPure, meta = (HidePin = "Render View to Texture", DefaultToSelf = "Render View to Texture", FriendlyName = "Render View to Texture", CompactNodeTitle = "Render", Keywords = "render view texture camera"), Category = "Test")
		static float RenderView(UCameraComponent* cameraView);
	
};

CPP:

#include "Coding.h"
#include "RenderViewToTexture.h"

URenderViewToTexture::URenderViewToTexture(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{

}

float URenderViewToTexture::RenderView(UCameraComponent* cameraView)
{
	return 1;

}
2

Change your .h to this:

#pragma once
#include "Kismet/BlueprintFunctionLibrary.h"
#include "RenderViewToTexture.generated.h"

/**
* 
*/
UCLASS()
class URenderViewToTexture : public UBlueprintFunctionLibrary
{
	GENERATED_UCLASS_BODY()
public:

	UFUNCTION(BlueprintCallable,  Category = "Test")
    static float RenderView(class UCameraComponent* cameraView);
 
};

And your .cpp to this:

#include "Coding.h"
#include "RenderViewToTexture.h"
 
 
float URenderViewToTexture::RenderView(UCameraComponent* cameraView)
{
	return 1.0f;
}
3

I finally got it to work, though I left in the constructor in the cpp because it gave a bunch of errors without it.

Thanks a lot, cancel.

Though all the tutorials I found used EdGraphNode.h and EdGraphSchema.h. Was there a recent change or is something else?

4

Those tutorials are wrong, unless you are making a custom node with special behavior, like the Timeline node or the Cast node. If your node just has simple in/out functionality, like a function, then you don’t need to inherit from those classes. I think one of the tutorials on the wiki inherits from those unnecessarily, and it’s wrong.

Also, sorry about that: you do need the constructor if you use GENERATED_UCLASS_BODY(), but not if you use GENERATED_BODY() instead. If you change it to that, you can get rid of the constructor. Sorry about that.