camera zoom script

[swipis]

Hello,

I trying to make zoom in/out 3rd person camera, here is the code:

if mouseWheelPos > 0 then
if self.camDist < self.camMaxDist then
self.camDist = mouseWheelPos * 1
if self.camDist > self.camMaxDist then
self.camDist = self.camMaxDist
numer = self.camMacDist
end
end

elseif mouseWheelPos < 0 then
if self.camDist > self.camMinDist then
self.camDist = mouseWheelPos * 1
if self.camDist < self.camMinDist then
self.camDist = self.camMinDist
number = self.camMinDist
end
end

end
System:Print(tostring(self.camDist))

self.cam:SetPosition(Vec3(0, -self.camDist, 0))

 

I can say its kinda working, but need make more smoother, any tips?

[cassius]

 

 

 

 

 

I don't know lua but in c++ this works

 

// ----------------------camera zoom

 

float deltazoom = (window->KeyDown(Key::Up) - window->KeyDown(Key::Down))*Time::GetSpeed()*0.05;

float zoom = camera->GetZoom() + deltazoom;

zoom = Math::Clamp(zoom, 0.2, 10.0);

camera->SetZoom(zoom);

 

[swipis]

Yes its working but how to make working on mouse wheel scroll?

[cassius]

window->MouseDown(3)

 

Something like above.

[swipis]

MouseDown(3) working same as button when I hit and hold middle mouse button is working but for scrolling not.

[macklebee]

http://www.leadwerks.com/werkspace/topic/10444-setmouseposition-not-setting-z-value/#entry76828

[Rick]

So how does one clamp zooming then as I suppose that's the next question when zooming with a 3rd person camera. I notice the z value keeps going so simply doing a max/min on the position used creates a stickiness. I suppose maybe reset each frame or keep an offset.

 

Although window:SetMousePosition(x, y, 0) doesn't seem to actually reset z to 0.

[macklebee]

see this post: http://www.leadwerks.com/werkspace/topic/14414-flush-mouse/#entry98680