How can I create a Flickering Lighting Effect without noticeable framerate drops?

3D
1

Hello everyone!
I wanted to create a flickering lighting effect in the hallway. But when I tried to do it by toggling the light source on and off, I discovered that it caused noticeable lags in the my game. In the test project, it can only noticeable in the profiler, but in the game, it was clearly noticeable in gameplay.

image
image1920×1109 182 KB

My question: is there a way to achieve this effect without the framerate drop? Maybe not just by toggling the light source on and off, but by doing something else? Maybe I shouldn’t be manipulating the light sources at all?

test-glent.zip (7.5 MB)

2

try:
You can just play with the Intensity value instead of turning the light on and off.Changing the intensity is much cheaper performance-wise,
so even if your FPS is low, it should stay stable and avoid noticeable frame drops

procedure TViewLightNode.DoRandSwitch(const AEnable: Boolean);
var
I:Integer;
begin
if AEnable then  i := 10
else I := 0;

BabLight1S.Intensity:= i;
BabLight1P.Intensity:= i;
BabLight2S.Intensity:= i;
BabLight2P.Intensity:= i;
BabLight3S.Intensity:= i;
BabLight3P.Intensity:= i;
BabLight4S.Intensity:= i;
BabLight4P.Intensity:= i;
end;
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