def emit_sycles_light(app, light_name, usd_tfm, visibility, usd_prim, light_type, xsi_parent, up_key, ignore_tfm):
xsi_light = None
usd_light = None
# cylinder light is not suported by cycles lighst
if light_type == "RectLight":
xsi_light = app.GetPrim("cyclesArea", light_name, xsi_parent)
usd_light = UsdLux.RectLight(usd_prim)
# set width and height
set_import_parameter(app, xsi_light, "sizeU", usd_light.GetWidthAttr())
set_import_parameter(app, xsi_light, "sizeV", usd_light.GetHeightAttr())
elif light_type == "DiskLight":
xsi_light = app.GetPrim("cyclesArea", light_name, xsi_parent)
usd_light = UsdLux.DiskLight(usd_prim)
xsi_light.Parameters("shape").Value = 1
set_import_parameter(app, xsi_light, "sizeU", usd_light.GetRadiusAttr())
set_import_parameter(app, xsi_light, "sizeV", usd_light.GetRadiusAttr())
elif light_type == "LightPortal":
xsi_light = app.GetPrim("cyclesArea", light_name, xsi_parent)
usd_light = UsdLux.LightPortal(usd_prim)
xsi_light.Parameters("is_portal").Value = True
elif light_type == "SphereLight":
xsi_light = app.GetPrim("cyclesPoint", light_name, xsi_parent)
usd_light = UsdLux.SphereLight(usd_prim)
set_import_parameter(app, xsi_light, "size", usd_light.GetRadiusAttr())
elif light_type == "DistantLight":
xsi_light = app.GetPrim("cyclesSun", light_name, xsi_parent)
usd_light = UsdLux.DistantLight(usd_prim)
set_import_parameter(app, xsi_light, "angle", usd_light.GetAngleAttr())
elif light_type == "DomeLight":
xsi_light = app.GetPrim("cyclesBackground", light_name, xsi_parent)
usd_light = UsdLux.DomeLight(usd_prim)
if xsi_light is not None:
# set transform
utils.set_xsi_transform(app, xsi_light, usd_tfm, up_key=up_key, add_tfm=usd_light.GetLocalTransformation())
utils.set_xsi_visibility(xsi_light, visibility)
# for all lights (except dome light and portal) we can set diffuse, specular, intensity
if usd_light is not None and light_type != "DomeLight" and light_type != "LightPortal":
set_import_parameter(app, xsi_light, "use_diffuse", usd_light.GetDiffuseAttr())
set_import_parameter(app, xsi_light, "use_glossy", usd_light.GetSpecularAttr())
set_import_parameter(app, xsi_light, "power", usd_light.CreateIntensityAttr())
return xsi_light
def _ValidateDiskLightXformAnimation(self):
lightPrimPath = '/RfMLightsTest/Lights/DiskLight'
lightPrim = self._stage.GetPrimAtPath(lightPrimPath)
self.assertTrue(lightPrim)
diskLight = UsdLux.DiskLight(lightPrim)
self.assertTrue(diskLight)
xformOps = diskLight.GetOrderedXformOps()
self.assertEqual(len(xformOps), 1)
translateOp = xformOps[0]
self.assertEqual(translateOp.GetOpName(), 'xformOp:translate')
self.assertEqual(translateOp.GetOpType(), UsdGeom.XformOp.TypeTranslate)
for frame in xrange(int(self.START_TIMECODE), int(self.END_TIMECODE + 1.0)):
expectedTranslation = Gf.Vec3d(1.0, float(frame), 1.0)
self.assertTrue(
Gf.IsClose(translateOp.Get(frame), expectedTranslation, 1e-6))
def emit_default_light(app, light_name, usd_tfm, visibility, usd_prim, light_type, xsi_parent, up_key, ignore_tfm):
xsi_light = None
if light_type == "DistantLight":
xsi_light = app.GetPrimLight("Infinite.Preset", light_name, xsi_parent)
usd_light = UsdLux.DistantLight(usd_prim)
# for distance we set transform
utils.set_xsi_transform(app, xsi_light, usd_tfm, up_key=up_key, add_tfm=usd_light.GetLocalTransformation())
utils.set_xsi_visibility(xsi_light, visibility)
# and diffuse and specular params
set_import_diffuse_param(app, xsi_light, usd_light)
set_import_specular_param(app, xsi_light, usd_light)
else: # all other lights are point lights
if light_type in ["SphereLight", "RectLight", "DiskLight", "CylinderLight"]: # portal and dome lights are not supported by default lights
xsi_light = app.GetPrimLight("Point.Preset", light_name, xsi_parent)
# cast ptim to light
usd_light = UsdLux.SphereLight(usd_prim) if light_type == "SphereLight" else (UsdLux.RectLight(usd_prim) if light_type == "RectLight" else (UsdLux.DiskLight(usd_prim) if light_type == "DiskLight" else UsdLux.CylinderLight(usd_prim)))
# set transform
utils.set_xsi_transform(app, xsi_light, usd_tfm, up_key=up_key, add_tfm=usd_light.GetLocalTransformation())
utils.set_xsi_visibility(xsi_light, visibility)
# set diffuse and specular
set_import_diffuse_param(app, xsi_light, usd_light)
set_import_specular_param(app, xsi_light, usd_light)
# enable area light
xsi_light.Parameters("LightArea").Value = True
set_import_light_geometry(app, xsi_light, usd_light, light_type)
return xsi_light