AEGP_LayerFlag_LAYER_IS_3D and AEGP_LayerFlag_COLLAPSE Hint Range Issue

[Mind5E43]

In the Smart Render phase, when using

ERR(extra->cb->checkout_layer_pixels(in_data->effect_ref, CHECK_OUT_INPUT_ID, &input));

checking out a layer that has the AEGP_LayerFlag_LAYER_IS_3D and AEGP_LayerFlag_COLLAPSE flags results in the checked-out layer’s extent_hint being set to the full composition size. Is there a way to obtain the precise extent_hint that only covers the non-zero alpha area? The performance overhead from unnecessary pixels is significant.