def test_unpack_pack_half_float():
# FIXME: Research half float and find out if these are actual limitations or
# a bug in the function.
# if it's not an actual limitation, raise an exception
# https://en.wikipedia.org/wiki/Half-precision_floating-point_format
expected_fail = 0
for short_input in range(0, 65535):
if (short_input in range(31745, 33792)
or short_input in range(1, 1024)
or short_input in range(64512, 65535)):
expected_fail += 1
else:
float_output = unpack_half_float(short_input)
short_again = pack_half_float(float_output)
assert short_input == short_again
assert expected_fail == 4093
def test_unpack_pack_half_float():
# FIXME: Research half float and find out if these are actual limitations or
# a bug in the function.
# if it's not an actual limitation, raise an exception
# https://en.wikipedia.org/wiki/Half-precision_floating-point_format
expected_fail = 0
for short_input in range(0, 65535):
if (short_input in range(31745, 33792) or
short_input in range(1, 1024) or
short_input in range(64512, 65535)):
expected_fail += 1
else:
float_output = unpack_half_float(short_input)
short_again = pack_half_float(float_output)
assert short_input == short_again
assert expected_fail == 4093
def _export_vertices(blender_mesh_object, bounding_box, saved_mod, mesh_index):
saved_mesh = saved_mod.meshes_array[mesh_index]
if saved_mod.bone_palette_array:
bone_palette = saved_mod.bone_palette_array[
saved_mesh.bone_palette_index].values[:]
else:
bone_palette = []
blender_mesh = blender_mesh_object.data
vertex_count = len(blender_mesh.vertices)
weights_per_vertex = get_bone_indices_and_weights_per_vertex(
blender_mesh_object)
# TODO: check the number of uv layers
uvs_per_vertex = get_uvs_per_vertex(blender_mesh_object.data,
blender_mesh_object.data.uv_layers[0])
VF = VERTEX_FORMATS_TO_CLASSES[saved_mesh.vertex_format]
'''
# Unfortunately this fails in some cases and could crash the game; until some mesh unknowns are figured out,
# relying on saved_mesh data
# e.g. pl0000.mod from uPl00ChrisNormal.arc, meshes_array[30] has max bones per vertex = 4, but the
# original file has 5
if weights_per_vertex:
max_bones_per_vertex = max({len(data) for data in weights_per_vertex.values()})
if max_bones_per_vertex > 8:
raise RuntimeError("The mesh '{}' contains some vertex that are weighted by "
"more than 8 bones, which is not supported. Fix it and try again"
.format(blender_mesh.name))
VF = VERTEX_FORMATS_TO_CLASSES[max_bones_per_vertex]
'''
for vertex_index, (uv_x, uv_y) in uvs_per_vertex.items():
# flipping for dds textures
uv_y *= -1
uv_x = pack_half_float(uv_x)
uv_y = pack_half_float(uv_y)
uvs_per_vertex[vertex_index] = (uv_x, uv_y)
if uvs_per_vertex and len(uvs_per_vertex) != vertex_count:
# TODO: logging
print('There are some vertices with no uvs in mesh in {}.'
'Vertex count: {} UVs per vertex: {}'.format(
blender_mesh.name, vertex_count, len(uvs_per_vertex)))
box_width = abs(bounding_box.min_x * 100) + abs(bounding_box.max_x * 100)
box_height = abs(bounding_box.min_y * 100) + abs(bounding_box.max_y * 100)
box_length = abs(bounding_box.min_z * 100) + abs(bounding_box.max_z * 100)
vertices_array = (VF * vertex_count)()
has_bones = hasattr(VF, 'bone_indices')
has_tangents = hasattr(VF, 'tangent_x')
has_second_uv_layer = hasattr(VF, 'uv2_x')
original_vertices_array = get_vertices_array(
saved_mod, saved_mod.meshes_array[mesh_index])
for vertex_index, vertex in enumerate(blender_mesh.vertices):
vertex_struct = vertices_array[vertex_index]
original_vertex_struct = original_vertices_array[vertex_index]
if weights_per_vertex:
weights_data = weights_per_vertex[
vertex_index] # list of (bone_index, value)
bone_indices = [
bone_palette.index(bone_index)
for bone_index, _ in weights_data
]
weight_values = [
round(weight_value * 255) for _, weight_value in weights_data
]
else:
bone_indices = []
weight_values = []
xyz = (vertex.co[0] * 100, vertex.co[1] * 100, vertex.co[2] * 100)
xyz = z_up_to_y_up(xyz)
if has_bones:
# applying bounding box constraints
xyz = vertices_export_locations(xyz, box_width, box_length,
box_height)
vertex_struct.position_x = xyz[0]
vertex_struct.position_y = xyz[1]
vertex_struct.position_z = xyz[2]
vertex_struct.position_w = 32767
if has_bones:
array_size = ctypes.sizeof(vertex_struct.bone_indices)
vertex_struct.bone_indices = (ctypes.c_ubyte *
array_size)(*bone_indices)
vertex_struct.weight_values = (ctypes.c_ubyte *
array_size)(*weight_values)
'''
vertex_struct.normal_x = round(vertex.normal[0] * 127)
vertex_struct.normal_y = round(vertex.normal[2] * 127) * -1
vertex_struct.normal_z = round(vertex.normal[1] * 127)
vertex_struct.normal_w = -1
'''
# XXX quick hack until normals can be exported ok in blender (gotta check fbx export or ask Bastien Montagne)
vertex_struct.normal_x = original_vertex_struct.normal_x
vertex_struct.normal_y = original_vertex_struct.normal_y
vertex_struct.normal_z = original_vertex_struct.normal_z
vertex_struct.normal_w = original_vertex_struct.normal_w
if has_tangents:
vertex_struct.tangent_x = original_vertex_struct.tangent_x
vertex_struct.tangent_y = original_vertex_struct.tangent_x
vertex_struct.tangent_z = original_vertex_struct.tangent_x
vertex_struct.tangent_w = original_vertex_struct.tangent_x
'''
vertex_struct.tangent_x = -1
vertex_struct.tangent_y = -1
vertex_struct.tangent_z = -1
vertex_struct.tangent_w = -1
'''
vertex_struct.uv_x = uvs_per_vertex.get(
vertex_index, (0, 0))[0] if uvs_per_vertex else 0
vertex_struct.uv_y = uvs_per_vertex.get(
vertex_index, (0, 0))[1] if uvs_per_vertex else 0
if has_second_uv_layer:
vertex_struct.uv2_x = 0
vertex_struct.uv2_y = 0
return VF, vertices_array
def _export_vertices(blender_mesh_object, bounding_box, saved_mod, mesh_index):
saved_mesh = saved_mod.meshes_array[mesh_index]
if saved_mod.bone_palette_array:
bone_palette = saved_mod.bone_palette_array[saved_mesh.bone_palette_index].values[:]
else:
bone_palette = []
blender_mesh = blender_mesh_object.data
vertex_count = len(blender_mesh.vertices)
weights_per_vertex = get_bone_indices_and_weights_per_vertex(blender_mesh_object)
# TODO: check the number of uv layers
uvs_per_vertex = get_uvs_per_vertex(blender_mesh_object.data, blender_mesh_object.data.uv_layers[0])
VF = VERTEX_FORMATS_TO_CLASSES[saved_mesh.vertex_format]
'''
# Unfortunately this fails in some cases and could crash the game; until some mesh unknowns are figured out,
# relying on saved_mesh data
# e.g. pl0000.mod from uPl00ChrisNormal.arc, meshes_array[30] has max bones per vertex = 4, but the
# original file has 5
if weights_per_vertex:
max_bones_per_vertex = max({len(data) for data in weights_per_vertex.values()})
if max_bones_per_vertex > 8:
raise RuntimeError("The mesh '{}' contains some vertex that are weighted by "
"more than 8 bones, which is not supported. Fix it and try again"
.format(blender_mesh.name))
VF = VERTEX_FORMATS_TO_CLASSES[max_bones_per_vertex]
'''
for vertex_index, (uv_x, uv_y) in uvs_per_vertex.items():
# flipping for dds textures
uv_y *= -1
uv_x = pack_half_float(uv_x)
uv_y = pack_half_float(uv_y)
uvs_per_vertex[vertex_index] = (uv_x, uv_y)
if uvs_per_vertex and len(uvs_per_vertex) != vertex_count:
# TODO: logging
print('There are some vertices with no uvs in mesh in {}.'
'Vertex count: {} UVs per vertex: {}'.format(blender_mesh.name, vertex_count,
len(uvs_per_vertex)))
box_width = abs(bounding_box.min_x * 100) + abs(bounding_box.max_x * 100)
box_height = abs(bounding_box.min_y * 100) + abs(bounding_box.max_y * 100)
box_length = abs(bounding_box.min_z * 100) + abs(bounding_box.max_z * 100)
vertices_array = (VF * vertex_count)()
has_bones = hasattr(VF, 'bone_indices')
has_tangents = hasattr(VF, 'tangent_x')
has_second_uv_layer = hasattr(VF, 'uv2_x')
original_vertices_array = get_vertices_array(saved_mod, saved_mod.meshes_array[mesh_index])
for vertex_index, vertex in enumerate(blender_mesh.vertices):
vertex_struct = vertices_array[vertex_index]
original_vertex_struct = original_vertices_array[vertex_index]
if weights_per_vertex:
weights_data = weights_per_vertex[vertex_index] # list of (bone_index, value)
bone_indices = [bone_palette.index(bone_index) for bone_index, _ in weights_data]
weight_values = [round(weight_value * 255) for _, weight_value in weights_data]
else:
bone_indices = []
weight_values = []
xyz = (vertex.co[0] * 100, vertex.co[1] * 100, vertex.co[2] * 100)
xyz = z_up_to_y_up(xyz)
if has_bones:
# applying bounding box constraints
xyz = vertices_export_locations(xyz, box_width, box_length, box_height)
vertex_struct.position_x = xyz[0]
vertex_struct.position_y = xyz[1]
vertex_struct.position_z = xyz[2]
vertex_struct.position_w = 32767
if has_bones:
array_size = ctypes.sizeof(vertex_struct.bone_indices)
vertex_struct.bone_indices = (ctypes.c_ubyte * array_size)(*bone_indices)
vertex_struct.weight_values = (ctypes.c_ubyte * array_size)(*weight_values)
'''
vertex_struct.normal_x = round(vertex.normal[0] * 127)
vertex_struct.normal_y = round(vertex.normal[2] * 127) * -1
vertex_struct.normal_z = round(vertex.normal[1] * 127)
vertex_struct.normal_w = -1
'''
# XXX quick hack until normals can be exported ok in blender (gotta check fbx export or ask Bastien Montagne)
vertex_struct.normal_x = original_vertex_struct.normal_x
vertex_struct.normal_y = original_vertex_struct.normal_y
vertex_struct.normal_z = original_vertex_struct.normal_z
vertex_struct.normal_w = original_vertex_struct.normal_w
if has_tangents:
vertex_struct.tangent_x = original_vertex_struct.tangent_x
vertex_struct.tangent_y = original_vertex_struct.tangent_x
vertex_struct.tangent_z = original_vertex_struct.tangent_x
vertex_struct.tangent_w = original_vertex_struct.tangent_x
'''
vertex_struct.tangent_x = -1
vertex_struct.tangent_y = -1
vertex_struct.tangent_z = -1
vertex_struct.tangent_w = -1
'''
vertex_struct.uv_x = uvs_per_vertex.get(vertex_index, (0, 0))[0] if uvs_per_vertex else 0
vertex_struct.uv_y = uvs_per_vertex.get(vertex_index, (0, 0))[1] if uvs_per_vertex else 0
if has_second_uv_layer:
vertex_struct.uv2_x = 0
vertex_struct.uv2_y = 0
return VF, vertices_array
