MoveRelative.

[PhunkeyMonkey]

pInput->GetAbsMouseState( &iX, &iY, &b1 /*left*/, &b2/*right*/, &b3, &b4, &bR/*mouse roll*/ );

niX = iX - oiX, oiX = iX; // X Push value
niY = oiY - iY, oiY = iY; // Y Push Value

if( niX != 0 && b2 )
  pScene->GetCamera()->MoveRelative( 0.f, 0.f, niX * tick, false ); // Pan left/right around model

When executing this, it rotate's around the model correct, but it also moves the camera position back more.. so eventually if you keep spinning around the camera moves so far back that you don't see anything.. this shouldn't occur unless i am doing something totally wrong that i am unaware about.

[tweakbox]

use math.movearoundpoint it works much better

[PhunkeyMonkey]

It still means that MoveRelative has a bug in it. avoiding it doesn't fix a problem in the engine..


But i will look into math.movearoundpoint for now until it is fixed.

[SylvainTV]

There is no bug actually.

It's the logic behind that is wrong.

If the Tick was infinitesimal, it would work and do a good circle around.
However in your case the tick isn't small enough, and it gives problems.
So you can't use a relative method, prefer trigonometry or MoveAroundPoint method, that will always work better.

[Waterman]

Or estimate (based on frame rate) where the next point on the circle is, and move towards that instead of in the tangent direction.

[Anti-Gremlin]

Yeah i used MoveAroundPoint() which works well.