rotating camera help

[chronos1981]

Hi im new to IRRLICHT and im working on a rpg style game. So I need a camera that works like a rpg camera. I have read alot of stuff and searched the api (hard to read the api used to msdn) but just don't get it yet. I don't want someone to give me the code just point me in the right direction. How do i rotate the camera around a fixed point? I want something simular to the maya camera. Any help is appriciated THANKS!

[randomMesh]

...works like a rpg camera.

What's an rpg camera?

How do i rotate the camera around a fixed point?

Using spherical coordinates should do the trick.
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=17033

Use the for.. er... the search button Luke.

[JP]

There's lots of 3rd person/RPG cameras on this forum if you search for them.

To rotate the camera you have to use setTarget() as the camera effectively ignores anything provided to setRotation().

[chronos1981]

Thanks for the quick replys JP and randomMesh

Using spherical coordinates should do the trick.
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=17033

That's what I thought. I was just hoping for an already existing command, but I figured it out today.

Code: Select all

while(device->run())
	{

		if (fw) //forward
		{
		    hero->setPosition(hero->getPosition()-vector3df(sin(h*(pi/180))*10,0,cos(h*(pi/180))*10));
			camera->setPosition(hero->getPosition()+ vector3df( sin(h*(pi/180))*cos(v*(pi/180))*d,sin(v*(pi/180))*d,cos(h*(pi/180))*cos(v*(pi/180))*d  ));			
			camera->setTarget(hero->getPosition());
		}
		if (lt) //left
		{
		
			camera->setPosition(hero->getPosition()+ vector3df( sin(h*(pi/180))*cos(v*(pi/180))*d,sin(v*(pi/180))*d,cos(h*(pi/180))*cos(v*(pi/180))*d  ));			
			camera->setTarget(hero->getPosition());
		}

		if (rt) //right
		{
		
			camera->setPosition(hero->getPosition()+ vector3df( sin(h*(pi/180))*cos(v*(pi/180))*d,sin(v*(pi/180))*d,cos(h*(pi/180))*cos(v*(pi/180))*d  ));
			camera->setTarget(hero->getPosition());
		}
		if (down)
		{
			camera->setPosition(hero->getPosition()+ vector3df( sin(h*(pi/180))*cos(v*(pi/180))*d,sin(v*(pi/180))*d,cos(h*(pi/180))*cos(v*(pi/180))*d  ));
			camera->setTarget(hero->getPosition());
		}

		if (up)
		{
			camera->setPosition(hero->getPosition()+ vector3df( sin(h*(pi/180))*cos(v*(pi/180))*d,sin(v*(pi/180))*d,cos(h*(pi/180))*cos(v*(pi/180))*d  ));
			camera->setTarget(hero->getPosition());
		}

I could simplify the code I know the if statements up, down, lt and rt all do the same thing just had it like this for debugging.

To any one reading this post who is new to c++ when using sin or cos you have to convert you angle in degrees to radians, just multiply degrees by (pi/180), this annoyed me for hours. Hope this helps anyone else.

JP I enjoyed your Avatar Pinhead playing with a rubik's cube, woot.

[Halifax]

There is actually a built-in Irrlicht macro called DEGTORAD, and RADTODEG. Those would sure help you, and that would make your code much more readable.