Posted By: HeelX
PH_SLIDER, inversed axis limits - 10/05/11 14:19
Hi,
I noticed, that when you define a slider axis, that you have to inverse the limits, e.g. if the entity is at 0,0,0 and the axis is defined as 1,0,0, and you want that it just slides between x=0...64, passing vector(0,64,0) to setparams2 doesn't work, you have to pass vector(-64,0,0), because in the PhysX plugin code you do this:
where you obviously use the second argument (limit in axis direction) together with the -inversed- axis and vice versa.
This is not only counter-intuitive, but also wrong compared to what is stated in the manual:
Best regards,
-Christian
[EDIT] And the manual doesn't state what happens with the .z parameter, as you obviously use it, see limit_angles->z in the above snippet... what is it?
I noticed, that when you define a slider axis, that you have to inverse the limits, e.g. if the entity is at 0,0,0 and the axis is defined as 1,0,0, and you want that it just slides between x=0...64, passing vector(0,64,0) to setparams2 doesn't work, you have to pass vector(-64,0,0), because in the PhysX plugin code you do this:
Code:
cylindricalJoint->addLimitPlane(-gAxis, gAnchor + _FLOAT(limit_angles->y)*PhX.NXSize*gAxis,_FLOAT(limit_angles->z)*0.01f); cylindricalJoint->addLimitPlane(gAxis, gAnchor + _FLOAT(limit_angles->x)*PhX.NXSize*gAxis,_FLOAT(limit_angles->z)*0.01f);
where you obviously use the second argument (limit in axis direction) together with the -inversed- axis and vice versa.
This is not only counter-intuitive, but also wrong compared to what is stated in the manual:
Quote:
Allowed distance from original position, e.g. (-100, 1000, 0) allows the objects to slide apart by 1000 quants along the axis and 100 quants in the opposite direction, thus giving a total range of 1100 quants.
Best regards,
-Christian
[EDIT] And the manual doesn't state what happens with the .z parameter, as you obviously use it, see limit_angles->z in the above snippet... what is it?
