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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.
import bpy
from ..com.gltf2_blender_extras import set_extras
class BlenderCamera():
"""Blender Camera."""
def __new__(cls, *args, **kwargs):
raise RuntimeError("%s should not be instantiated" % cls)
@staticmethod
def create(gltf, camera_id):
"""Camera creation."""
pycamera = gltf.data.cameras[camera_id]
if not pycamera.name:
pycamera.name = "Camera"
cam = bpy.data.cameras.new(pycamera.name)
set_extras(cam, pycamera.extras)
# Blender create a perspective camera by default
if pycamera.type == "orthographic":
cam.type = "ORTHO"
# TODO: xmag/ymag
cam.clip_start = pycamera.orthographic.znear
cam.clip_end = pycamera.orthographic.zfar
else:
cam.angle_y = pycamera.perspective.yfov
cam.lens_unit = "FOV"
cam.sensor_fit = "VERTICAL"
# TODO: fov/aspect ratio
cam.clip_start = pycamera.perspective.znear
if pycamera.perspective.zfar is not None:
cam.clip_end = pycamera.perspective.zfar
else:
# Infinite projection
cam.clip_end = 1e12 # some big number
return cam
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