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Is it possible to assign specific material to FPrimitiveDrawInterface's drawn line?


Is it possible to assign specific material to FPrimitiveDrawInterface's drawn line?

I tried to change its opacity by using below

  FColor LineClr = FColor(120.0f, 0.0f, 150.0f, JumpPad->CalculateJumpPathAlpha()); 
  //Draw and swap line ends
  PDI->DrawLine(Start, End, LineClr, 0, LINE_THICKNESS);


and JumpPad->CalculateJumpPathAlpha() is actually called every tick and updated returned float that will be used for alpha but the spline itself is not updating its alpha.

And of course I changed engine-side code "BatchedElements.cpp"

to accept alpha value.

  FLinearColor OpaqueColor(Color);
  //OpaqueColor.A = 1; // This is original implementation and I commented this line for alpha use.


I don't know why it does not work. Any suggestions would be appreciated.

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asked Mar 12 '15 at 02:13 AM in C++ Programming

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