Draw Lines

Development Programming & Scripting C++
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1

i have a procedural mesh with vertexes;
and i want to create from these vertexes lines in 3d space
how can i do that? “draw debug line” is only for debug… and only for 2 points (i need draw array of points)

thanks, new for unreal, wait for help

2

this is my solution:

LineBatchComponent = CreateDefaultSubobject<ULineBatchComponent>(TEXT("LineBatcher"));
 TArray<FBatchedLine> lines;
		for (auto i = 0; i < mVertexes.size() - 1; i += 2)
		{
			FVector start = FVector(mVertexes[i].x,mVertexes[i].y,mVertexes[i].z);
			FVector end = FVector(mVertexes[i+1].x,mVertexes[i+1].y,mVertexes[i+1].z);

			FBatchedLine line = FBatchedLine(start,
				end,
				FLinearColor(1, 1, 1, 0.5),
				10000, // for long period draw
				0.3,
				4
			);
			lines.Add(line);
		}
	}


	LineBatchComponent->DrawLines(lines);
3

I have used this utility extensively and recommend it for all in world line drawing.

4

Hi, i using Unreal Engine 5 and using this component/function i noticed that ALPHA of color not work, do you know how i fix it?