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# Copyright 2018-2021 The glTF-Blender-IO authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Optional
from io_scene_gltf2.io.com import gltf2_io_lights_punctual
def gather_light_spot(blender_lamp, export_settings) -> Optional[gltf2_io_lights_punctual.LightSpot]:
if not __filter_light_spot(blender_lamp, export_settings):
return None
spot = gltf2_io_lights_punctual.LightSpot(
inner_cone_angle=__gather_inner_cone_angle(blender_lamp, export_settings),
outer_cone_angle=__gather_outer_cone_angle(blender_lamp, export_settings)
)
return spot
def __filter_light_spot(blender_lamp, _) -> bool:
if blender_lamp.type != "SPOT":
return False
return True
def __gather_inner_cone_angle(blender_lamp, _) -> Optional[float]:
angle = blender_lamp.spot_size * 0.5
return angle - angle * blender_lamp.spot_blend
def __gather_outer_cone_angle(blender_lamp, _) -> Optional[float]:
return blender_lamp.spot_size * 0.5
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