Lua Issues

[Marcus]

I decided to look past the syntax of Lua and give the tutorials a go. I was actually pleasantly surprised at the quickness of putting together a script. The only problem I have with scripting now is the first script in the tutorial pdf when run seems very choppy. The two example scripts in the SDK also ran very choppy. My framerate was jumping every where from 70fps on the low end to 310fps on the high end. Is this normal? If I can't even turn a single cube and have it look good, could I really make a game with Lua?

 

Any advice would be appreciated.

[Marleys Ghost]

all work fine for me. whats your system spec?

[Marcus]

Updated my signature.

 

It works flawlessly in C++. To be honest, my CPU is the thing that could be holding me back. But, I think LE is more dependent upon the GPU than the CPU. Of course, my GPU could be getting bottle necked by may CPU.

[Marleys Ghost]

could you post the code you are using just incase you missed something?

[Marcus]

require("Scripts/constants/keycodes")

-- Register abstract path
RegisterAbstractPath("")

-- Set graphics mode
if Graphics(1680, 1050, 32) == 0 then
Notify("Failed to set graphics mode.", 1)
return
end

world = CreateWorld()
if world == nil then
Notify("Failed to initialize engine.", 1)
return
end

gbuffer = CreateBuffer(GraphicsWidth(), GraphicsHeight(), 1+2+4+8)

camera = CreateCamera()
camera:SetPosition(Vec3(0, 0, -2))

light = CreateSpotLight(10)
light:SetRotation(Vec3(45, 55, 0))
light:SetPosition(Vec3(5, 5, -5))

material = LoadMaterial("abstract::cobblestones.mat")

mesh = CreateCube()
mesh:Paint(material)

ground = CreateCube()
ground:SetScale(Vec3(10.0, 1.0, 10.))
ground:SetPosition(Vec3(0.0, -2.0, 0.0))
ground:Paint(material)

light = CreateDirectionalLight()
light:SetRotation(Vec3(45, 45, 45))

while AppTerminate() == 0 do
if KeyHit(KEY_ESCAPE) == 1 then break end

mesh:Turn(Vec3(AppSpeed() * 0.5, AppSpeed() * 0.5, AppSpeed() * 0.5))

UpdateAppTime()
world:Update(AppSpeed())

SetBuffer(gbuffer)
world:Render()
SetBuffer(BackBuffer())
world:RenderLights(gbuffer)

DrawText(UPS(), 0, 0)
Flip(0)
end

[Canardia]

Graphics(1680, 1050, 32)

I think this will make graphics window which is covered by the upper part of the Vista Start button. That will cause random behaviour in 3D apps, some may be depending on idle timers, and it might mess them up.

 

Try to make a smaller window, or use fullscreen, so that the Vista Start button does not overlap on your graphics window.

You could also use Windows 2000 theme to get some additional FPS in 3D games, and to avoid this Vista bug too.

They "fixed" this Vista bug in Win 7 by making the start button not come over the task bar.

[Marcus]

Graphics(1680, 1050, 32)

I think this will make graphics window which is covered by the upper part of the Vista Start button. That will cause random behaviour in 3D apps, some may be depending on idle timers, and it might mess them up.

 

Try to make a smaller window, or use fullscreen, so that the Vista Start button does not overlap on your graphics window.

You could also use Windows 2000 theme to get some additional FPS in 3D games, and to avoid this Vista bug too.

They "fixed" this Vista bug in Win 7 by making the start button not come over the task bar.

 

That actually was full screen. But just for fun I set it to windowed mode at 1024x768 with the same issues. I wondered if it was Aero, but after disabling it, still the same problems. Everything in the editor seems to run fine though. Odd.

[Marcus]

Okay I figured out the problem.

 

I only get the choppiness when I run the script in the editor. If I compile the file into a .luac and then drag-and-drop that onto engine.exe, I don't get the choppiness. Odd, but I feel better now that I can get it to work.

[Canardia]

What happens if you don't compile the file, but drag the .lua onto the engine.exe?

[Marcus]

What happens if you don't compile the file, but drag the .lua onto the engine.exe?

 

Runs equally as well. It seems that it is just a problem with having the script editor open at the same time.

 

When I open the task manager with the script editor open and the script running, the script editor is taking 45 percent of my CPU. When I run it from engine.exe, it allows the script to have 85 percent of my CPU time.

[Canardia]

Yeah, something wrong with the script editor, it's the only part of LE which fails to run on Linux also, because of some riched20.dll.