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# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
"""
Select Meshlights
Select all the meshes that emit light. On the header of the 3D View, top
of the select menu.
"""
import bpy
from amaranth import utils
class AMTH_OBJECT_OT_select_meshlights(bpy.types.Operator):
"""Select light emitting meshes"""
bl_idname = "object.select_meshlights"
bl_label = "Select Meshlights"
bl_options = {"UNDO"}
@classmethod
def poll(cls, context):
return context.scene.render.engine == "CYCLES"
def execute(self, context):
# Deselect everything first
bpy.ops.object.select_all(action="DESELECT")
for ob in context.scene.objects:
if utils.cycles_is_emission(context, ob):
ob.select_set(True)
context.view_layer.objects.active = ob
if not context.selected_objects and not context.view_layer.objects.active:
self.report({"INFO"}, "No meshlights to select")
return {"FINISHED"}
def button_select_meshlights(self, context):
if utils.cycles_exists() and utils.cycles_active(context):
self.layout.operator('object.select_meshlights', icon="LIGHT_SUN")
def register():
bpy.utils.register_class(AMTH_OBJECT_OT_select_meshlights)
bpy.types.VIEW3D_MT_select_object.append(button_select_meshlights)
def unregister():
bpy.utils.unregister_class(AMTH_OBJECT_OT_select_meshlights)
bpy.types.VIEW3D_MT_select_object.remove(button_select_meshlights)
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