If a view that produces multiple gl draw calls is used as a MaskView mask, it will increment the stencil buffer multiple times and the stencil test will break.
This can be triggered by a nested mask, where the child MaskView has an ImageView (because it calls both BaseView::draw() and gl::draw(mTexture, ...)) or a BaseView with multiple children as a mask.
If a view that produces multiple gl draw calls is used as a
MaskViewmask, it will increment the stencil buffer multiple times and the stencil test will break.This can be triggered by a nested mask, where the child
MaskViewhas anImageView(because it calls bothBaseView::draw()andgl::draw(mTexture, ...)) or aBaseViewwith multiple children as a mask.