[2.1+] Fake area light rotating+scaling problem

[rujialiu]

Hi!

I'm using Fake area light and it's working fine. However, when the parent node is scaling, the light recsize is incorret:

Code: Select all

Vector2 Light::getDerivedRectSize(void) const
    {
        Vector3 parentScale = mParentNode->_getDerivedScale();
        return mRectSize * Vector2( parentScale.x, parentScale.y );
    }

I have a fake area light that is attached to node who is rotated to be parallel to XOZ plane (because by default the fake area light is parallel to XOY plane). Then the node is scaled on XOZ plane (e.g. setScale(2, 1, 2)). However, the pareltScale in the code above does not take rotation into account so mRectSize is scaled only along X-axis. Is there an easy way to solve this problem?

Thanks!

[dark_sylinc]

Is there a quick code snippet to reproduce the transforms? It will be easier with a simple setup of nodes the way you are describing.

[rujialiu]

Is there a quick code snippet to reproduce the transforms? It will be easier with a simple setup of nodes the way you are describing.

Not yet... we've avoided this problem by placing these lights directly under the root node :-S