Real-Time Physics Simulation Forum

When I am using btConvexPointCloudShape and setting localScaling it is not afftected
How properly scale btConvexPointCloudShape object ?
my scale is
vec3(3.000000, 6.000000, 1.000000)

can someone help me here how to properly use this collision shape ?

I don't use that class, but glancing at the code(localGetSupportingVertexWithoutMargin) I'd say the scaling is applied too late-- shouldn't matter if you are doing uniform scaling but with (3,6,1) I'd guess it would produce incorrect results.

Try changing this code in localGetSupportingVertexWithoutMargin:


int index = (int)vec.maxDot(&m_unscaledPoints[0], m_numPoints, maxDot); //FIXME: may violate encapsulation of m_unscaledPoints
return getScaledPoint(index);

To This:

vec = vec * m_localScaling;
int index = (int)vec.maxDot(&m_unscaledPoints[0], m_numPoints, maxDot); //FIXME: may violate encapsulation of m_unscaledPoints
return getScaledPoint(index);

thanks niad. let me try. I will get back in short with results