Isotropix Forums

Hi ,
Could you please give an example how to remove an existing AOV from image?

Thanks,
Tigran

Hi,

Do you want to do it by script?

If yes, here is a script I wrote a while ago. Hope it helps.

py code

def remove_layer_aovs(layer3d, remove=[]):
    """
    Remove AOVs specified by `remove` from the Layer3D, except the AOVs specified by in `ignore`.

    Parameters
    ----------
    layer3d: Layer3d
    > The Layer3d to process.

    remove: list
    > List of AOV names to be removed.

    Returns True if at least 1 AOV was removed, False if 0.
    """

    if layer3d.is_kindof('Layer3D'):
        ix.log_warning('"{}" is not a Layer3D.'.format(layer3d.get_full_name()))
        return False

    if not remove:
        return False # Nothing to remove

    # Get current AOVs
    # These 3 attributes work together

    aov_attr = layer3d.get_attribute('selected_aov_list')
    current_aovs = ix.api.CoreStringArray()
    aov_attr.get_values(current_aovs)

    aov_enabled_attr = layer3d.get_attribute('enabled_aov_list')
    current_enabled = ix.api.BoolArray()
    aov_enabled_attr.get_values(current_enabled)

    aov_blend_attr = layer3d.get_attribute('aov_blend_override_list')
    current_blend = ix.api.LongArray()
    aov_blend_attr.get_values(current_blend)

    # Build the list of AOVs to remove: all values must be specified as strings
    new_aovs = ix.api.CoreStringVector()
    new_enabled = ix.api.CoreStringVector()
    new_blend = ix.api.CoreStringVector()

    aov_count = current_aovs.get_count()
    for i in range(aov_count):
        if current_aovs[i] not in remove:
            new_aovs.add(current_aovs[i])
            new_enabled.add("{}".format(int(current_enabled[i]))) # convert boolean to 0 or 1
            new_blend.add("{}".format(current_blend[i]))

    if len(new_aovs) == 0:
        return False # Nothing to remove

    # Remove the AOVs
    print('{}: found {} AOVs to remove.'.format(layer3d.get_full_name(), new_aovs.get_count()))
    ix.begin_command_batch('Remove Layer3D AOVs')
    ix.cmds.SetValue(aov_attr.get_full_name(), new_aovs)
    ix.cmds.SetValue(aov_enabled_attr.get_full_name(), new_enabled)
    ix.cmds.SetValue(aov_blend_attr.get_full_name(), new_blend)
    ix.end_command_batch()

    return True

# Run it
layer3d = ix.selection[0]
remove = ['rgba']
something_removed = remove_layer_aovs(layer3d, remove)
print("Something removed?", something_removed)

Cheers,

Edit: fixed script

Hi Anthony,

I tested the script , and it keeps the AOVs in remove list and removes rest AOVs.

Thanks,
Tigran

My bad, there was a mistake in the script. I updated it in my previous post.