def test_only_obj_blur(self):
"""
Only one object ("moving_obj") is moving. Camera blur is disabled.
"""
blender_scene = bpy.context.scene
# Switch to the static camera
blender_scene.camera = bpy.data.objects["static_camera"]
# Switch to correct frame in case someone messed it up on save
blender_scene.frame_set(TEST_FRAME, TEST_SUBFRAME)
# Get the object that moves and should be blurred
moving_obj = bpy.data.objects["moving_obj"]
moving_obj_name = utils.get_luxcore_name(moving_obj,
is_viewport_render=False)
# Make sure the settings are correct
# (can only change if someone messes with the test scene)
self.assertIsNotNone(blender_scene.camera)
blur_settings = blender_scene.camera.data.luxcore.motion_blur
self.assertTrue(blur_settings.enable)
self.assertAlmostEqual(blur_settings.shutter, 4.0)
self.assertTrue(blur_settings.object_blur)
self.assertFalse(blur_settings.camera_blur)
self.assertEqual(blur_settings.steps, 2)
# Make sure we are at the correct frame
self.assertEqual(blender_scene.frame_current, 3)
self.assertAlmostEqual(blender_scene.frame_subframe, 0.0)
# Export the scene
scene_props = export(blender_scene)
# Check properties for correctness
all_exported_obj_prefixes = scene_props.GetAllUniqueSubNames(
"scene.objects")
for prefix in all_exported_obj_prefixes:
luxcore_name = prefix.split(".")[-1]
if luxcore_name == moving_obj_name:
test_moving_object(self, scene_props, prefix)
# Check if camera shutter settings are correct
# Total shutter duration is 4.0 frames, so these should be -2.0 and 2.0
self.assertAlmostEqual(
scene_props.Get("scene.camera.shutteropen").GetFloat(), -2.0)
self.assertAlmostEqual(
scene_props.Get("scene.camera.shutterclose").GetFloat(), 2.0)
def export_first_mat(type_str):
"""
Export material node tree on material slot 0.
type_str is the name of the object with the material to export, e.g. "matte"
"""
obj = bpy.data.objects[type_str]
mat = obj.material_slots[0].material
node_tree = mat.luxcore.node_tree
active_output = get_active_output(node_tree)
luxcore_name = utils.get_luxcore_name(mat, is_viewport_render=False)
props = pyluxcore.Properties()
# Now export the material node tree, starting at the output node
active_output.export(props, luxcore_name)
prefix = "scene.materials." + luxcore_name
return props, luxcore_name, prefix
def test_materials(self):
blender_scene = bpy.context.scene
# Export the scene
scene_props = export(blender_scene)
# Note: the "000" at the end of the name is there because LuxCore objects can only have
# one material, while Blender objects can have multiple, so one Blender object might be
# split into multiple LuxCore objects on export and an index is added to the name
particle_base_obj = bpy.data.objects["ParticleBase"]
particle_base_obj_name = utils.get_luxcore_name(
particle_base_obj, is_viewport_render=False) + "000"
particle_base_mat = particle_base_obj.material_slots[0].material
particle_base_mat_name = utils.get_luxcore_name(
particle_base_mat, is_viewport_render=False)
emitter_obj = bpy.data.objects["Emitter"]
emitter_obj_name = utils.get_luxcore_name(
emitter_obj, is_viewport_render=False) + "000"
emitter_mat = emitter_obj.material_slots[0].material
emitter_mat_name = utils.get_luxcore_name(emitter_mat,
is_viewport_render=False)
# Check properties for correctness
all_exported_obj_prefixes = scene_props.GetAllUniqueSubNames(
"scene.objects")
for prefix in all_exported_obj_prefixes:
luxcore_name = prefix.split(".")[-1]
if luxcore_name == particle_base_obj_name:
self.assertEqual(
scene_props.Get(prefix + ".material").GetString(),
particle_base_mat_name)
mat_prefix = "scene.materials." + particle_base_mat_name
# LuxCore inserts an implicit property texture here (probably because we use DuplicateObject)
kd_tex_name = scene_props.Get(mat_prefix + ".kd").GetString()
kd_tex_prefix = "scene.textures." + kd_tex_name
assertListsAlmostEqual(
self,
scene_props.Get(kd_tex_prefix + ".value").GetFloats(),
[0.7, 0.0, 0.0])
elif luxcore_name == emitter_obj_name:
self.assertEqual(
scene_props.Get(prefix + ".material").GetString(),
emitter_mat_name)
mat_prefix = "scene.materials." + emitter_mat_name
# LuxCore inserts an implicit property texture here (probably because we use DuplicateObject)
kd_tex_name = scene_props.Get(mat_prefix + ".kd").GetString()
kd_tex_prefix = "scene.textures." + kd_tex_name
assertListsAlmostEqual(
self,
scene_props.Get(kd_tex_prefix + ".value").GetFloats(),
[0.0, 0.7, 0.0])
else:
# It is one of the instanced particles
self.assertEqual(
scene_props.Get(prefix + ".material").GetString(),
particle_base_mat_name)
mat_prefix = "scene.materials." + particle_base_mat_name
# LuxCore inserts an implicit property texture here (probably because we use DuplicateObject)
kd_tex_name = scene_props.Get(mat_prefix + ".kd").GetString()
kd_tex_prefix = "scene.textures." + kd_tex_name
assertListsAlmostEqual(
self,
scene_props.Get(kd_tex_prefix + ".value").GetFloats(),
[0.7, 0.0, 0.0])
def test_obj_and_cam_blur(self):
"""
One object ("moving_obj") and the camera ("moving_camera") are moving.
Camera and object motion blur are enabled.
"""
blender_scene = bpy.context.scene
# Switch to the moving camera
blender_scene.camera = bpy.data.objects["moving_camera"]
# Switch to correct frame in case someone messed it up on save
blender_scene.frame_set(TEST_FRAME, TEST_SUBFRAME)
# Get the object that moves and should be blurred
moving_obj = bpy.data.objects["moving_obj"]
moving_obj_name = utils.get_luxcore_name(moving_obj,
is_viewport_render=False)
# Make sure the settings are correct
# (can only change if someone messes with the test scene)
self.assertIsNotNone(blender_scene.camera)
blur_settings = blender_scene.camera.data.luxcore.motion_blur
self.assertTrue(blur_settings.enable)
self.assertAlmostEqual(blur_settings.shutter, 4.0)
self.assertTrue(blur_settings.object_blur)
self.assertTrue(blur_settings.camera_blur)
self.assertEqual(blur_settings.steps, 2)
# Make sure we are at the correct frame
self.assertEqual(blender_scene.frame_current, 3)
self.assertAlmostEqual(blender_scene.frame_subframe, 0.0)
# Export the scene
scene_props = export(blender_scene)
# Check properties for correctness
all_exported_obj_prefixes = scene_props.GetAllUniqueSubNames(
"scene.objects")
for prefix in all_exported_obj_prefixes:
luxcore_name = prefix.split(".")[-1]
if luxcore_name == moving_obj_name:
test_moving_object(self, scene_props, prefix)
# Check if camera shutter settings are correct
# Total shutter duration is 4.0 frames, so these should be -2.0 and 2.0
self.assertAlmostEqual(
scene_props.Get("scene.camera.shutteropen").GetFloat(), -2.0)
self.assertAlmostEqual(
scene_props.Get("scene.camera.shutterclose").GetFloat(), 2.0)
# Check if camera transformation props are correct
# Test the times
# step 0. Shutter is 4.0 frames, so this step should be minus half of the shutter value
self.assertAlmostEqual(
scene_props.Get("scene.camera.motion.0.time").GetFloat(), -2.0)
# step 1. This should be half of the shutter value
self.assertAlmostEqual(
scene_props.Get("scene.camera.motion.1.time").GetFloat(), 2.0)
# Test the transformation matrices
# step 0. We are at X = 3m, Y = 0, Z = 0m
translation = Matrix.Translation([3, 0, 0])
rotation = Matrix.Rotation(math.radians(-90.0), 4, "X")
scale = Matrix.Scale(1, 4)
expected_step_0 = create_expected_matrix(blender_scene, translation,
rotation, scale)
# For some reason we need to invert these two... my matrix math is rusty
expected_step_0[6] *= -1
expected_step_0[9] *= -1
transformation_step_0 = scene_props.Get(
"scene.camera.motion.0.transformation").GetFloats()
assertListsAlmostEqual(self, transformation_step_0, expected_step_0)
# step 1. We are at X = -3m, Y = 0, Z = 0m
translation = Matrix.Translation([-3, 0, 0])
rotation = Matrix.Rotation(math.radians(-90.0), 4, "X")
scale = Matrix.Scale(1, 4)
expected_step_1 = create_expected_matrix(blender_scene, translation,
rotation, scale)
# For some reason we need to invert these two... my matrix math is rusty
expected_step_1[6] *= -1
expected_step_1[9] *= -1
transformation_step_1 = scene_props.Get(
"scene.camera.motion.1.transformation").GetFloats()
assertListsAlmostEqual(self, transformation_step_1, expected_step_1)