def __init__(self, model: OBJ, controller):
self._model = model # type: OBJ
self._controller = controller # type: Controller
# init pattern data
self._split_factor = 0.2 # type: float
self.MAX_SEGMENTS = -1 # type: int
self._pattern_offsets = None # type: np.array
self._pattern_indexes = None # type: np.array
self._pattern_parameters = None # type: np.array
self._need_recompute = True # type: bool
self._need_update_split_factor = True # type: bool
self._splited_triangle_number = -1 # type: int
self.init_pattern_data()
# declare buffer
self._original_vertex_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 0, None, GL_DYNAMIC_DRAW)
self._original_normal_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 1, None, GL_DYNAMIC_DRAW)
self._original_tex_coord_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 22, None, GL_DYNAMIC_DRAW)
if self._model.from_bezier:
self._original_uv_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 24, None, GL_DYNAMIC_DRAW)
self._original_index_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 2, None, GL_DYNAMIC_DRAW)
self._splited_triangle_counter_acbo = ACVBO(GL_ATOMIC_COUNTER_BUFFER, 0, None, GL_DYNAMIC_DRAW)
self._adjacency_info_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 3, None, GL_DYNAMIC_DRAW)
self._share_adjacency_pn_triangle_normal_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 4, None, GL_DYNAMIC_DRAW)
self._share_adjacency_pn_triangle_position_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 19, None, GL_DYNAMIC_DRAW)
self._splited_triangle_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 5, None, GL_DYNAMIC_DRAW)
# init shader
self._program_gen_pn_triangle = ProgramWrap().add_shader(
ShaderWrap(GL_COMPUTE_SHADER, add_prefix('previous_compute_shader_pn_oo.glsl')))
self._program = ProgramWrap().add_shader(
PreviousComputeShader(GL_COMPUTE_SHADER, add_prefix('previous_compute_shader_oo.glsl'),
self)) # type: ProgramWrap
def __init__(self, size: list):
# check input
if len(size) != 3:
raise Exception('b spline body size number error')
if any(i < 0 for i in size):
raise Exception('b spline body size < 0, error')
# init b-spline body
self._b_spline_body = BSplineBody(*size) # type: BSplineBody
# init shader program
self._renderer_program = ProgramWrap().add_shader(ShaderWrap(GL_VERTEX_SHADER, add_prefix('aux.v.glsl'))) \
.add_shader(ShaderWrap(GL_FRAGMENT_SHADER, add_prefix('aux.f.glsl'))) # type: ProgramWrap
# init buffer
self._control_point_position_vbo = ACVBO(GL_ARRAY_BUFFER, -1, None, GL_DYNAMIC_DRAW) # type: ACVBO
if conf.IS_FAST_MODE:
self._control_point_for_sample_ubo = ACVBO(GL_SHADER_STORAGE_BUFFER, 15, None,
GL_DYNAMIC_DRAW) # type: ACVBO
else:
self._control_point_for_sample_ubo = ACVBO(GL_UNIFORM_BUFFER, 1, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._b_spline_body_info_ubo = ACVBO(GL_UNIFORM_BUFFER, 0, None, GL_STATIC_DRAW) # type: ACVBO
self._selected_counter_acbo = ACVBO(GL_ATOMIC_COUNTER_BUFFER, 1, None, GL_DYNAMIC_DRAW)
self._vao_control_point = -1 # type: int
self._normal_control_mode = False # type: bool
self._pick_region = None # type: ACRect
self._control_points_changed = True # type: bool
self._direct_control_point = [] # type: list
self._intersect_point_parameter = None
# init compute select point shader program
self._select_point_program = ProgramWrap() \
.add_shader(ShaderWrap(GL_COMPUTE_SHADER, add_compute_prefix('select_point.glsl')))
self._intersect_result_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 20, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._need_select_point = False
self._select_argument = None
self._delta_for_dffd = [0, 0, 0]
class PreviousComputeControllerGPU:
def __init__(self, model: OBJ, controller):
self._model = model # type: OBJ
self._controller = controller # type: Controller
# init pattern data
self._split_factor = 0.2 # type: float
self.MAX_SEGMENTS = -1 # type: int
self._pattern_offsets = None # type: np.array
self._pattern_indexes = None # type: np.array
self._pattern_parameters = None # type: np.array
self._need_recompute = True # type: bool
self._need_update_split_factor = True # type: bool
self._splited_triangle_number = -1 # type: int
self.init_pattern_data()
# declare buffer
self._original_vertex_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 0, None, GL_DYNAMIC_DRAW)
self._original_normal_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 1, None, GL_DYNAMIC_DRAW)
self._original_tex_coord_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 22, None, GL_DYNAMIC_DRAW)
if self._model.from_bezier:
self._original_uv_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 24, None, GL_DYNAMIC_DRAW)
self._original_index_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 2, None, GL_DYNAMIC_DRAW)
self._splited_triangle_counter_acbo = ACVBO(GL_ATOMIC_COUNTER_BUFFER, 0, None, GL_DYNAMIC_DRAW)
self._adjacency_info_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 3, None, GL_DYNAMIC_DRAW)
self._share_adjacency_pn_triangle_normal_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 4, None, GL_DYNAMIC_DRAW)
self._share_adjacency_pn_triangle_position_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 19, None, GL_DYNAMIC_DRAW)
self._splited_triangle_ssbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 5, None, GL_DYNAMIC_DRAW)
# init shader
self._program_gen_pn_triangle = ProgramWrap().add_shader(
ShaderWrap(GL_COMPUTE_SHADER, add_prefix('previous_compute_shader_pn_oo.glsl')))
self._program = ProgramWrap().add_shader(
PreviousComputeShader(GL_COMPUTE_SHADER, add_prefix('previous_compute_shader_oo.glsl'),
self)) # type: ProgramWrap
@staticmethod
def compute_triangle_quality(p1, p2, p3):
points = [np.array(p) for p in (p1, p2, p3)]
vecs = [points[0] - points[1], points[1] - points[2], points[2] - points[0]]
area = np.linalg.norm(np.cross(vecs[0], vecs[1]) / 2)
lens = [np.linalg.norm(v) for v in vecs]
perimeter = sum(lens)
return (2 * area / perimeter) / max(lens) * 2 * (3 ** 0.5)
@staticmethod
def compute_triangle_area(p1, p2, p3):
def len(v1, v2):
return sum([(x - y) ** 2 for x, y in zip(v1, v2)]) ** 0.5
ls = [len(p1, p2), len(p2, p3), len(p3, p1)]
s = sum(ls) / 2
temp = [s - x for x in ls]
return (temp[0] * temp[1] * temp[2] * s) ** 0.5
def get_average_area_and_triangle_quality(self):
triangles = self._splited_triangle_ssbo.get_value(ctypes.c_float, shape=(self._splited_triangle_number, 100))
temp = 0
temp_quality = 0
for t in triangles:
three_points = [x[:3] for x in zip(*[iter(t[:12])] * 4)]
temp += PreviousComputeControllerGPU.compute_triangle_area(*three_points)
# temp_quality += PreviousComputeControllerGPU.compute_triangle_quality(*three_points)
temp_quality += t[-1]
return temp / self.splited_triangle_number, temp_quality / self.splited_triangle_number
def change_model(self, model):
self._model = model
self.gl_async_update_buffer_for_self_about_model()
self._need_recompute = True # type: bool
def gl_init(self):
self._program_gen_pn_triangle.link()
self._program.link()
self.gl_set_split_factor()
# async update vbo
self.gl_async_update_buffer_for_self()
def gl_init_split_counter(self):
self._splited_triangle_counter_acbo.async_update(np.array([0], dtype=np.uint32))
self._splited_triangle_counter_acbo.gl_sync()
def gl_async_update_buffer_for_self(self):
indexes_size = self._pattern_indexes.size * self._pattern_indexes.itemsize
parameter_size = self._pattern_parameters.size * self._pattern_parameters.itemsize
offset_size = self._pattern_offsets.size * self._pattern_offsets.itemsize
split_info_buffer = glGenBuffers(1)
glBindBuffer(GL_SHADER_STORAGE_BUFFER, split_info_buffer)
glBufferData(GL_SHADER_STORAGE_BUFFER, offset_size + indexes_size + parameter_size,
None,
usage=GL_DYNAMIC_DRAW)
glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, indexes_size, self._pattern_indexes)
glBufferSubData(GL_SHADER_STORAGE_BUFFER, indexes_size, parameter_size, self._pattern_parameters)
glBufferSubData(GL_SHADER_STORAGE_BUFFER, indexes_size + parameter_size, offset_size, self._pattern_offsets)
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 9, split_info_buffer)
glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0)
self.gl_async_update_buffer_for_self_about_model()
def gl_async_update_buffer_for_self_about_model(self):
self._original_vertex_ssbo.async_update(self._model.vertex)
self._original_normal_ssbo.async_update(self._model.normal)
self._original_tex_coord_ssbo.async_update(self._model.tex_coord)
if self._model.from_bezier:
self._original_uv_ssbo.async_update(self._model.bezier_uv)
self._original_index_ssbo.async_update(self._model.index)
self._adjacency_info_ssbo.async_update(self._model.adjacency)
self.gl_async_update_buffer_about_output()
def gl_update_index(self, is_original):
if not is_original:
self._original_index_ssbo.async_update(self._model.index)
else:
print('update index for original')
self._original_index_ssbo.async_update(self._model.index_without_mark)
def gl_async_update_buffer_about_output(self):
self._share_adjacency_pn_triangle_normal_ssbo.capacity = self._model._original_triangle_number \
* PER_TRIANGLE_PN_NORMAL_TRIANGLE_SIZE
self._share_adjacency_pn_triangle_position_ssbo.capacity = self._model._original_triangle_number \
* PER_TRIANGLE_PN_POSITION_TRIANGLE_SIZE
# 用于储存原始三角面片的PN-triangle
self._splited_triangle_ssbo.capacity = self._model._original_triangle_number \
* MAX_SPLITED_TRIANGLE_PRE_ORIGINAL_TRIANGLE \
* SPLITED_TRIANGLE_SIZE
def gl_sync(self):
self._original_vertex_ssbo.gl_sync()
self._original_normal_ssbo.gl_sync()
self._original_tex_coord_ssbo.gl_sync()
if self._model.from_bezier:
self._original_uv_ssbo.gl_sync()
self._original_index_ssbo.gl_sync()
self._adjacency_info_ssbo.gl_sync()
self._share_adjacency_pn_triangle_normal_ssbo.gl_sync()
self._share_adjacency_pn_triangle_position_ssbo.gl_sync()
self._splited_triangle_ssbo.gl_sync()
def gl_compute(self, op) -> (int, bool):
if not self._need_recompute:
return self._splited_triangle_number, False
self.gl_sync()
op()
if self._need_update_split_factor:
self.gl_set_split_factor()
self._need_update_split_factor = False
self._program_gen_pn_triangle.use()
gl_timing(lambda: glDispatchCompute(*self.group_size), 'gen PN triangle time')
glFinish()
self._program.use()
self.gl_init_split_counter()
self._controller.add_time(gl_timing(lambda: glDispatchCompute(*self.group_size), 'pre compute time'))
glUseProgram(0)
self._splited_triangle_number = self.get_splited_triangles_number()
glFinish()
self._need_recompute = False
# print('gl_compute:', 'gpu splited triangle number: %d' % self._splited_triangle_number)
self._controller.add_splited_number(self.splited_triangle_number)
area, quality = self.get_average_area_and_triangle_quality()
self._controller.add_area(area)
self._controller.add_quality(quality)
return self._splited_triangle_number, True
@property
def need_compute(self):
return self._need_recompute
@need_compute.setter
def need_compute(self, b):
self._need_recompute = b
@property
def split_factor(self):
return self._split_factor
@property
def model(self):
return self._model
@property
def group_size(self):
return [int(self._model._original_triangle_number / 512 + 1), 1, 1]
@split_factor.setter
def split_factor(self, split_factor):
self._split_factor = split_factor
self._need_recompute = True
self._need_update_split_factor = True
def gl_set_split_factor(self):
glProgramUniform1f(self._program.program, 0, self._split_factor)
@property
def pattern_offsets(self):
return self._pattern_offsets
@property
def pattern_indexes(self):
return self._pattern_indexes
@property
def pattern_parameters(self):
return self._pattern_parameters
def init_pattern_data(self):
with open(PATTERN_FILE_PATH) as file:
max_factor, offset_line, indexes_line, parameter_line = file
print('read pattern file ok')
self.MAX_SEGMENTS = int(max_factor)
self._pattern_offsets = np.asarray([int(x) for x in offset_line.strip().split(" ")], dtype=np.uint32)
self._pattern_indexes = np.asarray([int(x) for x in indexes_line.strip().split(" ")], dtype=np.uint32)
self._pattern_parameters = np.asarray([abs(float(x)) for x in parameter_line.strip().split(" ")],
dtype=np.float32)
print('translate to np array ok')
indexes_size = self._pattern_indexes.size * self._pattern_indexes.itemsize
parameter_size = self._pattern_parameters.size * self._pattern_parameters.itemsize
offset_size = self._pattern_offsets.size * self._pattern_offsets.itemsize
print('pattern size ', (offset_size + indexes_size + parameter_size) / 1024 / 1024, "mb")
def get_offset_for_i(self) -> str:
look_up_table_for_i = [0]
for i in range(1, self.MAX_SEGMENTS):
ii = min(self.MAX_SEGMENTS - i, i)
look_up_table_for_i.append(
int(look_up_table_for_i[-1] + (1 + ii) * ii / 2 + max(0, (i + 1) * (self.MAX_SEGMENTS - 2 * i))))
return '{' + ','.join([str(i) for i in look_up_table_for_i]) + '}'
def get_splited_triangles_number(self) -> int:
return self._splited_triangle_counter_acbo.get_value(ctypes.c_uint32)[0]
@property
def splited_triangle_number(self):
return self._splited_triangle_number
@property
def share_adjacency_pn_triangle_normal_ssbo(self):
return self._share_adjacency_pn_triangle_normal_ssbo
@property
def share_adjacency_pn_triangle_position_ssbo(self):
return self._share_adjacency_pn_triangle_position_ssbo
@property
def splited_triangle_ssbo(self):
return self._splited_triangle_ssbo
@property
def original_vertex_ssbo(self):
return self._original_vertex_ssbo
@property
def original_normal_ssbo(self):
return self._original_normal_ssbo
@property
def original_tex_coord_ssbo(self):
return self._original_tex_coord_ssbo
@property
def original_index_ssbo(self):
return self._original_index_ssbo
def __init__(self, has_texture, previous_controller, model, aux_controller: AuxController, controller=None):
self.need_export_obj = False
self._screen_shot = False
self._screen_width = 0
self._screen_height = 0
self._time_number = -3
self._time_total = 0
self._aux_controller = aux_controller # type: AuxController
self.model = model
self._previous_controller = previous_controller # type: PreviousComputeControllerGPU
self._controller = controller
self._splited_triangle_number = -1
self._tessellation_level = -1 # type: int
self._final_tessellation_level = 0.02 # type: int
self._tessellated_point_number_pre_splited_triangle = -1 # type: int
self._tessellated_triangle_number_pre_splited_triangle = -1 # type: int
self._tessellation_parameter = None # type: list
self._tessellation_index = None # type: list
self._tessellation_factor_changed = False # type: bool
self._splited_triangle_number_changed = False # type: bool
self._tessellation_aux = None
if config.IS_UNIFORM_ADAPTIVE_TESSELLATION_FACTOR:
self.init_tessellation_pattern_data(
int(self._previous_controller.split_factor / self._final_tessellation_level))
else:
self.init_tessellation_pattern_data(10)
self._need_deform = True # type: bool
self._need_update_uniform_about_b_spline = False
self._need_update_show_splited_edge_flag = True
self._splited_edge_visibility = False
self._need_update_triangle_quality_flag = True
self._show_quality = False
self._need_update_normal_diff_flag = True
self._show_normal_diff = False
self._need_update_position_diff_flag = True
self._show_position_diff = False
self._need_update_adjust_control_point_flag = True
self._adjust_control_point = True
self._need_comparison = False
self._need_update_show_original = True
self._show_original = False
self._need_update_use_pn_normal_for_renderer = True
self._use_pn_normal_for_renderer = False
self._need_update_show_real_flag = True
self._show_real = False
self._need_update_use_texture_flag = False
self._has_texture = has_texture
# vbo
self._vertex_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 6, None, GL_DYNAMIC_COPY) # type: ACVBO
self._normal_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 7, None, GL_DYNAMIC_COPY) # type: ACVBO
self._index_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 8, None, GL_DYNAMIC_COPY) # type: ACVBO
if self.model.from_bezier:
self._bezier_control_point_buffer = ACVBO(GL_SHADER_STORAGE_BUFFER, 25, None, GL_DYNAMIC_DRAW)
self._model_vao = -1 # type: int
self._original_model_vao = -1 # type: int
self._parameter_in_BSpline_body_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 21, None, GL_DYNAMIC_DRAW) # type: ACVBO
if not conf.IS_FAST_MODE:
self._tex_coord_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 23, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._parameter_in_splited_triangle_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 10, None,
GL_DYNAMIC_DRAW) # type: ACVBO
self._parameter_in_original_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 11, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._real_position_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 12, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._real_normal_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 13, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._show_control_point = False
self._control_point_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 15, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._control_point_index_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 16, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._control_point_vao = -1 # type: int
self._show_normal = False
self._show_normal_position_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 17, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._show_normal_normal_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 18, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._show_normal_vao = -1 # type: int
# program
self._deform_program = DeformComputeProgram(self) \
.add_shader(
DeformComputeShader(GL_COMPUTE_SHADER, add_compute_prefix('deform_compute_shader_oo.glsl'), self))
self._renderer_program = ModelRendererShader(self) \
.add_shader(ShaderWrap(GL_VERTEX_SHADER, add_renderer_prefix('vertex.glsl'))) \
.add_shader(ShaderWrap(GL_FRAGMENT_SHADER, add_renderer_prefix('fragment.glsl'))) # type: ProgramWrap
if not conf.IS_FAST_MODE:
self._renderer_control_point_program = ProgramWrap() \
.add_shader(ShaderWrap(GL_VERTEX_SHADER, add_renderer_prefix('control_points.v.glsl'))) \
.add_shader(
ShaderWrap(GL_FRAGMENT_SHADER, add_renderer_prefix('control_points.f.glsl'))) # type: ProgramWrap
self._renderer_normal_program = ProgramWrap() \
.add_shader(ShaderWrap(GL_VERTEX_SHADER, add_renderer_prefix('normal.v.glsl'))) \
.add_shader(ShaderWrap(GL_FRAGMENT_SHADER, add_renderer_prefix('normal.f.glsl'))) \
.add_shader(ShaderWrap(GL_GEOMETRY_SHADER, add_renderer_prefix('normal.g.glsl'))) # type: ProgramWrap
class DeformAndDrawController:
@property
def final_tessellation_level(self):
return self._final_tessellation_level
def __init__(self, has_texture, previous_controller, model, aux_controller: AuxController, controller=None):
self.need_export_obj = False
self._screen_shot = False
self._screen_width = 0
self._screen_height = 0
self._time_number = -3
self._time_total = 0
self._aux_controller = aux_controller # type: AuxController
self.model = model
self._previous_controller = previous_controller # type: PreviousComputeControllerGPU
self._controller = controller
self._splited_triangle_number = -1
self._tessellation_level = -1 # type: int
self._final_tessellation_level = 0.02 # type: int
self._tessellated_point_number_pre_splited_triangle = -1 # type: int
self._tessellated_triangle_number_pre_splited_triangle = -1 # type: int
self._tessellation_parameter = None # type: list
self._tessellation_index = None # type: list
self._tessellation_factor_changed = False # type: bool
self._splited_triangle_number_changed = False # type: bool
self._tessellation_aux = None
if config.IS_UNIFORM_ADAPTIVE_TESSELLATION_FACTOR:
self.init_tessellation_pattern_data(
int(self._previous_controller.split_factor / self._final_tessellation_level))
else:
self.init_tessellation_pattern_data(10)
self._need_deform = True # type: bool
self._need_update_uniform_about_b_spline = False
self._need_update_show_splited_edge_flag = True
self._splited_edge_visibility = False
self._need_update_triangle_quality_flag = True
self._show_quality = False
self._need_update_normal_diff_flag = True
self._show_normal_diff = False
self._need_update_position_diff_flag = True
self._show_position_diff = False
self._need_update_adjust_control_point_flag = True
self._adjust_control_point = True
self._need_comparison = False
self._need_update_show_original = True
self._show_original = False
self._need_update_use_pn_normal_for_renderer = True
self._use_pn_normal_for_renderer = False
self._need_update_show_real_flag = True
self._show_real = False
self._need_update_use_texture_flag = False
self._has_texture = has_texture
# vbo
self._vertex_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 6, None, GL_DYNAMIC_COPY) # type: ACVBO
self._normal_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 7, None, GL_DYNAMIC_COPY) # type: ACVBO
self._index_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 8, None, GL_DYNAMIC_COPY) # type: ACVBO
if self.model.from_bezier:
self._bezier_control_point_buffer = ACVBO(GL_SHADER_STORAGE_BUFFER, 25, None, GL_DYNAMIC_DRAW)
self._model_vao = -1 # type: int
self._original_model_vao = -1 # type: int
self._parameter_in_BSpline_body_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 21, None, GL_DYNAMIC_DRAW) # type: ACVBO
if not conf.IS_FAST_MODE:
self._tex_coord_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 23, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._parameter_in_splited_triangle_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 10, None,
GL_DYNAMIC_DRAW) # type: ACVBO
self._parameter_in_original_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 11, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._real_position_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 12, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._real_normal_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 13, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._show_control_point = False
self._control_point_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 15, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._control_point_index_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 16, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._control_point_vao = -1 # type: int
self._show_normal = False
self._show_normal_position_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 17, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._show_normal_normal_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 18, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._show_normal_vao = -1 # type: int
# program
self._deform_program = DeformComputeProgram(self) \
.add_shader(
DeformComputeShader(GL_COMPUTE_SHADER, add_compute_prefix('deform_compute_shader_oo.glsl'), self))
self._renderer_program = ModelRendererShader(self) \
.add_shader(ShaderWrap(GL_VERTEX_SHADER, add_renderer_prefix('vertex.glsl'))) \
.add_shader(ShaderWrap(GL_FRAGMENT_SHADER, add_renderer_prefix('fragment.glsl'))) # type: ProgramWrap
if not conf.IS_FAST_MODE:
self._renderer_control_point_program = ProgramWrap() \
.add_shader(ShaderWrap(GL_VERTEX_SHADER, add_renderer_prefix('control_points.v.glsl'))) \
.add_shader(
ShaderWrap(GL_FRAGMENT_SHADER, add_renderer_prefix('control_points.f.glsl'))) # type: ProgramWrap
self._renderer_normal_program = ProgramWrap() \
.add_shader(ShaderWrap(GL_VERTEX_SHADER, add_renderer_prefix('normal.v.glsl'))) \
.add_shader(ShaderWrap(GL_FRAGMENT_SHADER, add_renderer_prefix('normal.f.glsl'))) \
.add_shader(ShaderWrap(GL_GEOMETRY_SHADER, add_renderer_prefix('normal.g.glsl'))) # type: ProgramWrap
def gl_init(self):
self._model_vao = glGenVertexArrays(1)
glBindVertexArray(self._model_vao)
# set vertice attribute
self._vertex_vbo.as_array_buffer(0, 4, GL_FLOAT)
# set normal attribute
self._normal_vbo.as_array_buffer(1, 4, GL_FLOAT)
# specific index buffer
self._index_vbo.as_element_array_buffer()
if not conf.IS_FAST_MODE:
self._tex_coord_vbo.as_array_buffer(6, 2, GL_FLOAT)
# set tessellate parameter attribute
self._parameter_in_splited_triangle_vbo.as_array_buffer(2, 4, GL_FLOAT)
# set split parameter attribute
self._parameter_in_original_vbo.as_array_buffer(3, 4, GL_FLOAT)
self._real_normal_vbo.as_array_buffer(4, 4, GL_FLOAT)
self._real_position_vbo.as_array_buffer(5, 4, GL_FLOAT)
# unbind program
glBindVertexArray(0)
if not conf.IS_FAST_MODE:
self._original_model_vao = glGenVertexArrays(1) # type: int
glBindVertexArray(self._original_model_vao)
self._previous_controller.original_vertex_ssbo.as_array_buffer(0, 4, GL_FLOAT)
self._previous_controller.original_normal_ssbo.as_array_buffer(1, 4, GL_FLOAT)
self._previous_controller.original_tex_coord_ssbo.as_array_buffer(6, 2, GL_FLOAT)
self._previous_controller.original_index_ssbo.as_element_array_buffer()
glBindVertexArray(0)
self._control_point_vao = glGenVertexArrays(1)
glBindVertexArray(self._control_point_vao)
self._control_point_vbo.as_array_buffer(0, 4, GL_FLOAT)
self._control_point_index_vbo.as_element_array_buffer()
glBindVertexArray(0)
self._show_normal_vao = glGenVertexArrays(1)
glBindVertexArray(self._show_normal_vao)
self._show_normal_position_vbo.as_array_buffer(0, 4, GL_FLOAT)
self._show_normal_normal_vbo.as_array_buffer(1, 4, GL_FLOAT)
glBindVertexArray(0)
self.gl_async_update_buffer_for_self()
# init for texture
texture_name = glGenTextures(1)
glActiveTexture(GL_TEXTURE1)
glEnable(GL_TEXTURE_2D)
# "Bind" the newly created texture : all future texture functions will modify this texture
glBindTexture(GL_TEXTURE_2D, texture_name)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
# image = DeformAndDrawController.load_texture_data('res/3d_model/rabbit_real/rabbit256.png')
# image = DeformAndDrawController.load_texture_data('res/3d_model/ship/ship_texture.png')
image = DeformAndDrawController.load_texture_data('res/colormap.png')
# Give the image to OpenGL
image_data = np.array(list(image.getdata()), dtype=np.uint8)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image.size[0], image.size[1],
0, GL_RGBA, GL_UNSIGNED_BYTE, image_data)
glActiveTexture(GL_TEXTURE0)
@staticmethod
def load_texture_data(filename):
return Image.open(filename)
def gl_async_update_buffer_for_self(self):
if self._vertex_vbo is not None:
self._vertex_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * VERTEX_SIZE
if self._normal_vbo is not None:
self._normal_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * NORMAL_SIZE
if self._index_vbo is not None:
self._index_vbo.capacity = self.splited_triangle_number \
* self.tessellated_triangle_number_pre_splited_triangle * PER_TRIANGLE_INDEX_SIZE
if self._parameter_in_BSpline_body_vbo is not None:
self._parameter_in_BSpline_body_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * VERTEX_SIZE
if not conf.IS_FAST_MODE:
if self._tex_coord_vbo is not None:
self._tex_coord_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * TEX_COORD_SIZE
if self._parameter_in_splited_triangle_vbo is not None:
self._parameter_in_splited_triangle_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * VERTEX_SIZE
if self._parameter_in_original_vbo is not None:
self._parameter_in_original_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * VERTEX_SIZE
if self._real_normal_vbo is not None:
self._real_normal_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * NORMAL_SIZE
if self._real_position_vbo is not None:
self._real_position_vbo.capacity = self.splited_triangle_number \
* self.tessellated_point_number_pre_splited_triangle * VERTEX_SIZE
if self._control_point_vbo is not None:
self._control_point_vbo.capacity = self.splited_triangle_number * CONTROL_POINT_NUMBER * VERTEX_SIZE
if self._control_point_index_vbo is not None:
self._control_point_index_vbo.capacity = self.splited_triangle_number * CONTROL_POINT_TRIANGLE_NUMBER * PER_TRIANGLE_INDEX_SIZE
if self._show_normal_position_vbo is not None:
self._show_normal_position_vbo.capacity = self.splited_triangle_number * SHOW_NORMAL_POINT_NUMBER_PER_TRIANGLE * VERTEX_SIZE
if self._show_normal_normal_vbo is not None:
self._show_normal_normal_vbo.capacity = self.splited_triangle_number * SHOW_NORMAL_POINT_NUMBER_PER_TRIANGLE * NORMAL_SIZE
if self.model.from_bezier and self._bezier_control_point_buffer is not None:
self._bezier_control_point_buffer.async_update(self.model.bezier_control_points)
def gl_sync_buffer(self):
self._vertex_vbo.gl_sync()
self._normal_vbo.gl_sync()
self._index_vbo.gl_sync()
self._parameter_in_BSpline_body_vbo.gl_sync()
if not conf.IS_FAST_MODE:
self._tex_coord_vbo.gl_sync()
self._parameter_in_splited_triangle_vbo.gl_sync()
self._parameter_in_original_vbo.gl_sync()
self._real_normal_vbo.gl_sync()
self._real_position_vbo.gl_sync()
self._control_point_vbo.gl_sync()
self._control_point_index_vbo.gl_sync()
self._show_normal_position_vbo.gl_sync()
self._show_normal_normal_vbo.gl_sync()
self._previous_controller.original_index_ssbo.gl_sync()
if self.model.from_bezier:
self._bezier_control_point_buffer.gl_sync()
def gl_deform(self, operator):
if not self.need_deform:
return
operator()
self._deform_program.use()
if self._tessellation_factor_changed:
self._deform_program.update_uniform_about_tessellation()
self._tessellation_factor_changed = False
if self._splited_triangle_number_changed:
self._deform_program.update_uniform_triangle_number()
self._splited_triangle_number_changed = False
if self._need_update_adjust_control_point_flag:
self._deform_program.update_uniform_about_adjust_control_point_flag()
self._need_update_adjust_control_point_flag = False
if self._need_update_use_pn_normal_for_renderer:
self._deform_program.update_uniform_about_use_pn_triangle()
self._need_update_use_pn_normal_for_renderer = False
self._deform_program.update_uniform_about_modify_range()
self._controller.add_time(GLUtil.gl_timing(lambda: glDispatchCompute(*self.group_size), "deformation", 3))
self._need_deform = False
glUseProgram(0)
def gl_renderer(self, model_view_matrix: np.array, perspective_matrix: np.array, operator):
self.gl_sync_buffer()
self.gl_deform(operator)
self._renderer_program.use()
if self._need_update_show_splited_edge_flag:
self._renderer_program.update_uniform_about_split_edge()
self._need_update_show_splited_edge_flag = False
if self._need_update_use_texture_flag:
self._renderer_program.update_uniform_about_texture()
self._need_update_use_texture_flag = False
if self._need_update_show_original:
self._renderer_program.update_uniform_about_show_original()
self._need_update_show_original = False
if self._need_update_triangle_quality_flag:
self._renderer_program.update_uniform_about_triangle_quality()
self._need_update_triangle_quality_flag = False
if self._need_update_normal_diff_flag:
self._renderer_program.update_uniform_about_normal_diff()
self._need_update_normal_diff_flag = False
if self._need_update_position_diff_flag:
self._renderer_program.update_uniform_about_position_diff()
self._need_update_position_diff_flag = False
if self._need_update_show_real_flag:
self._renderer_program.update_uniform_about_real()
self._need_update_show_real_flag = False
if self.need_export_obj:
self.gl_export_obj()
self.need_export_obj = False
glEnable(GL_DEPTH_TEST)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
# common bind
wvp_matrix = multiply(model_view_matrix, perspective_matrix)
glUniformMatrix4fv(0, 1, GL_FALSE, wvp_matrix)
glUniformMatrix4fv(1, 1, GL_FALSE, model_view_matrix)
glActiveTexture(GL_TEXTURE1)
if conf.IS_FAST_MODE:
glBindVertexArray(self._model_vao)
else:
if self._show_original:
glBindVertexArray(self._original_model_vao)
else:
glBindVertexArray(self._model_vao)
if conf.IS_FAST_MODE or not self._show_control_point:
number = int(self.splited_triangle_number * self.tessellated_triangle_number_pre_splited_triangle * 3)
glDrawElements(GL_TRIANGLES, number, GL_UNSIGNED_INT, None)
glActiveTexture(GL_TEXTURE0)
glBindVertexArray(0)
glUseProgram(0)
if not conf.IS_FAST_MODE:
if self._show_control_point:
glBindVertexArray(self._control_point_vao)
self._renderer_control_point_program.use()
glUniformMatrix4fv(0, 1, GL_FALSE, wvp_matrix)
number = int(self.splited_triangle_number * CONTROL_POINT_TRIANGLE_NUMBER * 3)
glDrawElements(GL_TRIANGLES, number, GL_UNSIGNED_INT, None)
glFinish()
glBindVertexArray(0)
glUseProgram(0)
if self._show_normal:
glBindVertexArray(self._show_normal_vao)
self._renderer_normal_program.use()
glUniformMatrix4fv(0, 1, GL_FALSE, wvp_matrix)
glUniformMatrix4fv(1, 1, GL_FALSE, model_view_matrix)
number = int(self.splited_triangle_number * 3)
glDrawArrays(GL_TRIANGLES, 0, number)
glFinish()
glUseProgram(0)
glBindVertexArray(0)
if self._screen_shot:
if self._screen_height > self._screen_width:
x = 0
y = (self._screen_height - self._screen_width) / 2
w = self._screen_width
h = self._screen_width
else:
x = (self._screen_width - self._screen_height) / 2
y = 0
w = self._screen_height
h = self._screen_height
image_data = glReadPixels(x, y, w, h, GL_RGB, GL_FLOAT)
shape = image_data.shape
print('save size', shape)
i = 0
while os.path.exists('sc%d.png' % i):
i += 1
mpimg.imsave('sc%d.png' % i, image_data.reshape((shape[1], shape[0], shape[2])), origin='lower')
self._screen_shot = False
glDisable(GL_DEPTH_TEST)
glDisable(GL_BLEND)
if self._vertex_vbo.capacity == 0:
return
if not self._need_comparison:
return
self._need_comparison = False
self.comparison()
# self.compute_area(self._vertex_vbo, self._index_vbo)
def gl_export_obj(self):
positions = self._vertex_vbo.get_value(ctypes.c_float, (int(self._vertex_vbo.capacity / 4 / 4), 4))
positions = [(round(x, 5) for x in y) for y in positions]
aux = {}
index_map = {}
counter = 0
new_position = []
for i in range(len(positions)):
l = tuple(positions[i])
positions[i] = l
if l not in aux:
aux[l] = counter
new_position.append(l)
counter += 1
index_map[i] = aux[l]
indices = self._index_vbo.get_value(ctypes.c_int, (int(self._index_vbo.capacity / 4 / 3), 3))
with open('volume.obj', mode='w') as f:
for p in new_position:
f.write('v ' + ' '.join([str(x) for x in p[:3]]) + '\n')
for i in indices:
points = [np.array(positions[x][:3]) for x in i]
v01 = points[1] - points[0]
v02 = points[2] - points[0]
if np.dot(np.cross(v01, v02), points[0]) < 0:
i[0], i[1] = i[1], i[0]
f.write('f ' + ' '.join([str(index_map[x] + 1) + '//' for x in i]) + '\n')
copyfile('volume.obj', '/home/ac/volume.obj')
def save_screen(self, w, h):
self._screen_shot = True
self._screen_width = w
self._screen_height = h
@property
def splited_triangle_number(self):
return self._splited_triangle_number
def set_number_and_need_deform(self, number: int, need_deform: bool):
self._need_deform = (self._need_deform or need_deform or number != self._splited_triangle_number)
if number != self._splited_triangle_number:
self._splited_triangle_number = number
self.gl_async_update_buffer_for_self()
self._splited_triangle_number_changed = True
@property
def splited_triangle_number_changed(self):
return self._splited_triangle_number_changed
@property
def group_size(self):
return [int(self.splited_triangle_number / 64) + 1, 1, 1]
@property
def tessellation_level(self):
return self._tessellation_level
def init_tessellation_pattern_data(self, tessellation_level):
self._tessellation_level = int(tessellation_level)
self._tessellated_point_number_pre_splited_triangle = (self._tessellation_level + 1) \
* (self._tessellation_level + 2) / 2
self._tessellated_triangle_number_pre_splited_triangle = self._tessellation_level * self._tessellation_level
self._tessellation_parameter = [] # type: list
u = self._tessellation_level
for i in range(self._tessellation_level + 1):
v = self._tessellation_level - u
for j in range(i + 1):
self._tessellation_parameter.append([u / self._tessellation_level, v / self._tessellation_level,
(self._tessellation_level - u - v) / self._tessellation_level, 0])
v -= 1
u -= 1
rfactorialt = [0.166666666,
0.5, 0.5,
0.5, 1, 0.5,
0.166666666, 0.5, 0.5, 0.166666666]
self._tessellation_aux = []
for p in self._tessellation_parameter:
index = 0
for i in range(3, -1, -1):
for j in range(3 - i, -1, -1):
k = 3 - i - j
t = 6 * rfactorialt[index] * power(p[0], i) * power(p[1], j) * power(p[2], k)
index += 1
self._tessellation_aux.append(t)
self._tessellation_aux.append(0)
self._tessellation_aux.append(0)
self._tessellation_index = [] # type: list
for i in range(self._tessellation_level):
start = int((i + 1) * (i + 2) / 2)
prev = [start, start + 1, start - 1 - i]
self._tessellation_index.append(prev)
for j in range(i * 2):
next_index = [prev[2], prev[2] + 1, prev[1]]
if j % 2 == 0:
self._tessellation_index.append([next_index[1], next_index[0], next_index[2]])
else:
self._tessellation_index.append(next_index)
prev = next_index
self._tessellation_index = [x + [0] for x in self._tessellation_index]
self._tessellation_factor_changed = True
@property
def tessellated_point_number_pre_splited_triangle(self):
return self._tessellated_point_number_pre_splited_triangle
@property
def tessellated_triangle_number_pre_splited_triangle(self):
return self._tessellated_triangle_number_pre_splited_triangle
@property
def tessellation_parameter(self):
return np.array(self._tessellation_parameter, dtype=np.float32)
@property
def tessellation_aux(self):
return np.array(self._tessellation_aux, dtype=np.float32)
@property
def tessellation_index(self):
return np.array(self._tessellation_index, dtype=np.uint32)
@property
def need_deform(self):
return self._need_deform
@property
def splited_edge_visibility(self):
return self._splited_edge_visibility
@property
def show_quality(self):
return self._show_quality
@property
def show_normal_diff(self):
return self._show_normal_diff
@property
def show_position_diff(self):
return self._show_position_diff
@property
def adjust_control_point(self):
return self._adjust_control_point
def set_show_normal_diff(self, v):
self._show_normal_diff = v
self._need_update_normal_diff_flag = True
def set_show_position_diff(self, v):
self._show_position_diff = v
self._need_update_position_diff_flag = True
def set_splited_edge_visibility(self, v):
self._splited_edge_visibility = v
self._need_update_show_splited_edge_flag = True
def set_show_triangle_quality(self, v):
self._show_quality = v
self._need_update_triangle_quality_flag = True
def set_show_real(self, is_show):
self._show_real = is_show
self._need_update_show_real_flag = True
def set_show_original(self, is_show):
self._show_original = is_show
self._need_update_show_original = True
def use_texture(self, b):
self._has_texture = b
self._need_update_use_texture_flag = True
def set_adjust_control_point(self, v):
self._adjust_control_point = v
self._need_update_adjust_control_point_flag = True
self._need_deform = True
@need_deform.setter
def need_deform(self, value):
self._need_deform = value
def set_tessellation_factor(self, tessellation_factor):
self.init_tessellation_pattern_data(tessellation_factor)
self.gl_async_update_buffer_for_self()
self._need_deform = True
@property
def show_control_point(self):
return self._show_control_point
@show_control_point.setter
def show_control_point(self, is_show):
self._show_control_point = is_show
@property
def show_normal(self):
return self._show_normal
@show_normal.setter
def show_normal(self, is_show):
self._show_normal = is_show
@property
def show_real(self):
return self._show_real
def set_need_comparison(self):
self._need_comparison = True
@staticmethod
def comparison_helper(vbo1: ACVBO, vbo2: ACVBO, fun):
point_number = int(vbo1.capacity / 16)
acc = 0
max_e = -1
es = []
for i, j in zip(vbo1.get_value(ctypes.c_float, (point_number, 4)),
vbo2.get_value(ctypes.c_float, (point_number, 4))):
e = fun(i, j)
max_e = max(e, max_e)
acc += e
es.append(e)
average = acc / point_number
acc = 0
for e in es:
acc += ((e - average) ** 2)
standard_deviation = (acc / point_number) ** 0.5
return average, max_e, standard_deviation
def comparison(self):
dr1 = DeformAndDrawController.comparison_helper(self._vertex_vbo, self._real_position_vbo,
lambda i, j: sqrt(
reduce(lambda p, x: p + x,
[e * e for e in (i - j)[:3]],
0)))
def fun(i, j):
cos_value = np.dot(i[:3], j[:3])
if cos_value > 1:
cos_value = 1
elif cos_value < -1:
cos_value = -1
return acos(cos_value) / pi * 180
dr2 = DeformAndDrawController.comparison_helper(self._normal_vbo, self._real_normal_vbo, fun)
self._controller.add_diff_result((dr1, dr2))
@property
def has_texture(self):
return self._has_texture
@property
def show_original(self):
return self._show_original
@property
def use_pn_normal_for_renderer(self):
return self._use_pn_normal_for_renderer
@use_pn_normal_for_renderer.setter
def use_pn_normal_for_renderer(self, use):
self._use_pn_normal_for_renderer = use
self._need_update_use_pn_normal_for_renderer = True
self._need_deform = True
def get_modify_range(self):
return self._aux_controller.get_modify_range()
def get_tessed_triangles_number(self) -> int:
res = self._tessed_triangle_counter_acbo.get_value(ctypes.c_uint32)[0]
return res
def export_obj(self):
self.need_export_obj = True
class AuxController:
def __init__(self, size: list):
# check input
if len(size) != 3:
raise Exception('b spline body size number error')
if any(i < 0 for i in size):
raise Exception('b spline body size < 0, error')
# init b-spline body
self._b_spline_body = BSplineBody(*size) # type: BSplineBody
# init shader program
self._renderer_program = ProgramWrap().add_shader(ShaderWrap(GL_VERTEX_SHADER, add_prefix('aux.v.glsl'))) \
.add_shader(ShaderWrap(GL_FRAGMENT_SHADER, add_prefix('aux.f.glsl'))) # type: ProgramWrap
# init buffer
self._control_point_position_vbo = ACVBO(GL_ARRAY_BUFFER, -1, None, GL_DYNAMIC_DRAW) # type: ACVBO
if conf.IS_FAST_MODE:
self._control_point_for_sample_ubo = ACVBO(GL_SHADER_STORAGE_BUFFER, 15, None,
GL_DYNAMIC_DRAW) # type: ACVBO
else:
self._control_point_for_sample_ubo = ACVBO(GL_UNIFORM_BUFFER, 1, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._b_spline_body_info_ubo = ACVBO(GL_UNIFORM_BUFFER, 0, None, GL_STATIC_DRAW) # type: ACVBO
self._selected_counter_acbo = ACVBO(GL_ATOMIC_COUNTER_BUFFER, 1, None, GL_DYNAMIC_DRAW)
self._vao_control_point = -1 # type: int
self._normal_control_mode = False # type: bool
self._pick_region = None # type: ACRect
self._control_points_changed = True # type: bool
self._direct_control_point = [] # type: list
self._intersect_point_parameter = None
# init compute select point shader program
self._select_point_program = ProgramWrap() \
.add_shader(ShaderWrap(GL_COMPUTE_SHADER, add_compute_prefix('select_point.glsl')))
self._intersect_result_vbo = ACVBO(GL_SHADER_STORAGE_BUFFER, 20, None, GL_DYNAMIC_DRAW) # type: ACVBO
self._need_select_point = False
self._select_argument = None
self._delta_for_dffd = [0, 0, 0]
def change_size(self, size):
# check input
if len(size) != 3:
raise Exception('b spline body size number error')
if any(i < 0 for i in size):
raise Exception('b spline body size < 0, error')
self._b_spline_body = BSplineBody(*size) # type: BSplineBody
self.async_upload_to_gpu()
def gl_init(self):
# init vao
self._vao_control_point = glGenVertexArrays(1)
glBindVertexArray(self._vao_control_point)
self._control_point_position_vbo.as_array_buffer(0, 4, GL_FLOAT)
glBindVertexArray(0)
# upload_to_gpu
self.async_upload_to_gpu()
def async_upload_to_gpu(self):
self._control_point_position_vbo.async_update(self.get_control_point_data())
self._control_point_for_sample_ubo.async_update(self._b_spline_body.get_control_point_for_sample())
self._b_spline_body_info_ubo.async_update(self._b_spline_body.get_info())
def gl_sync_buffer_for_self(self):
self._control_point_position_vbo.gl_sync()
def gl_sync_buffer_for_previous_computer(self):
self._b_spline_body_info_ubo.gl_sync()
def gl_sync_buffer_for_deformation(self):
def op():
self._control_point_for_sample_ubo.gl_sync()
self._b_spline_body_info_ubo.gl_sync()
GLUtil.gl_timing(op, 'copy control to gpu', 3)
def gl_draw(self, model_view_matrix: np.array, perspective_matrix: np.array):
glEnable(GL_DEPTH_TEST)
glEnable(GL_PROGRAM_POINT_SIZE)
self._renderer_program.use()
glBindVertexArray(self._vao_control_point)
self.gl_pick_control_point(model_view_matrix, perspective_matrix)
glFinish()
self.gl_sync_buffer_for_self()
self.gl_draw_control_points(model_view_matrix, perspective_matrix)
glFinish()
glBindVertexArray(0)
glUseProgram(0)
self.gl_select_point_gpu()
glFinish()
def gl_draw_control_points(self, model_view_matrix, perspective_matrix):
glUniformMatrix4fv(0, 1, GL_FALSE, multiply(model_view_matrix, perspective_matrix))
glDrawArrays(GL_POINTS, 0, self.get_control_point_number())
def gl_pick_control_point(self, model_view_matrix, perspective_matrix):
if not self._pick_region:
return
self._b_spline_body.reset_hit_record()
glSelectBuffer(1024)
glRenderMode(GL_SELECT)
glInitNames()
glPushName(0)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
w = max(10, self._pick_region.w)
h = max(10, self._pick_region.h)
gluPickMatrix((self._pick_region.x1 + self._pick_region.x2) / 2,
(self._pick_region.y1 + self._pick_region.y2) / 2,
w, h,
glGetDoublev(GL_VIEWPORT))
glUniformMatrix4fv(0, 1, GL_FALSE, multiply(model_view_matrix,
multiply(perspective_matrix,
glGetDoublev(GL_PROJECTION_MATRIX))))
for i in range(self._b_spline_body.get_control_point_number()):
glLoadName(i)
glDrawArrays(GL_POINTS, i, 1)
hit_info = glRenderMode(GL_RENDER)
for r in hit_info:
for select_name in r.names:
self._b_spline_body.hit_point(select_name)
self._control_point_position_vbo.async_update(self.get_control_point_data())
self._pick_region = None
def pick_control_point(self, region: ACRect):
self._pick_region = region
def move_selected_control_points(self, xyz):
self._b_spline_body.move([d / 10 for d in xyz])
self._control_point_position_vbo.async_update(self.get_control_point_data())
self._control_point_for_sample_ubo.async_update(self._b_spline_body.get_control_point_for_sample())
self._control_points_changed = True
def rotate_selected_control_points(self, m):
self._b_spline_body.rotate(m)
self._control_point_position_vbo.async_update(self.get_control_point_data())
self._control_point_for_sample_ubo.async_update(self._b_spline_body.get_control_point_for_sample())
self._control_points_changed = True
def get_control_point_data(self):
if self._normal_control_mode:
return self._b_spline_body.control_points
else:
return np.array(self._direct_control_point, dtype='f4')
def get_normal_control_point_data(self):
return self._b_spline_body.normal_control_points
def get_control_point_number(self):
if self._normal_control_mode:
return self._b_spline_body.get_control_point_number()
else:
return len(self._direct_control_point)
def get_control_point_for_sample(self):
return self._b_spline_body.get_control_point_for_sample()
def get_cage_size(self) -> list:
return self._b_spline_body.get_cage_size()
def change_control_point_number(self, u, v, w):
self._b_spline_body.change_control_point_number(u, v, w)
self.async_upload_to_gpu()
def change_control_point_order(self, order):
self._b_spline_body.change_control_point_order(order)
self.async_upload_to_gpu()
@property
def b_spline_body(self):
return self._b_spline_body
@property
def is_normal_control_point_mode(self):
return self._normal_control_mode
@is_normal_control_point_mode.setter
def is_normal_control_point_mode(self, v):
self._normal_control_mode = v
if self._normal_control_mode:
self.clear_all_direct_control_point()
self._control_point_position_vbo.async_update(self.get_control_point_data())
def add_direct_control_point(self, intersect_point):
if intersect_point is not None:
self._direct_control_point = [np.append(intersect_point, 0)]
self._control_point_position_vbo.async_update(self.get_control_point_data())
def clear_dst_direct_control_point(self):
self._direct_control_point = self._direct_control_point[:1]
self._b_spline_body.save_control_point_position()
self._control_point_position_vbo.async_update(self.get_control_point_data())
def clear_all_direct_control_point(self):
self._direct_control_point.clear()
self._delta_for_dffd = [0, 0, 0]
self._b_spline_body.save_control_point_position()
self._control_point_position_vbo.async_update(self.get_control_point_data())
@property
def normal_control_mode(self):
return self._normal_control_mode
def move_direct_control_point(self, direction):
self._b_spline_body.move_dffd(self._intersect_point_parameter, direction)
target_point = np.append(self._direct_control_point[0][:3] + direction, 1)
if len(self._direct_control_point) <= 1:
self._direct_control_point.append(target_point)
else:
self._direct_control_point[1] = target_point
self._control_point_position_vbo.async_update(self.get_control_point_data())
self._control_point_for_sample_ubo.async_update(self._b_spline_body.get_control_point_for_sample())
self._control_points_changed = True
def move_direct_control_point_delta(self, direction):
self._delta_for_dffd = [x + y for x, y in zip(self._delta_for_dffd, direction)]
self._b_spline_body.move_dffd(self._intersect_point_parameter, self._delta_for_dffd)
target_point = np.append(self._direct_control_point[0][:3] + self._delta_for_dffd, 1)
if len(self._direct_control_point) <= 1:
self._direct_control_point.append(target_point)
else:
self._direct_control_point[1] = target_point
self._control_point_position_vbo.async_update(self.get_control_point_data())
self._control_point_for_sample_ubo.async_update(self._b_spline_body.get_control_point_for_sample())
self._control_points_changed = True
def is_direct_control_point_selected(self):
return len(self._direct_control_point) != 0
def gl_select_point_gpu(self):
if not self._need_select_point:
return
self._selected_counter_acbo.async_update(np.array([0], dtype=np.uint32))
self._selected_counter_acbo.gl_sync()
start_point, direction, triangle_number = self._select_argument
self._intersect_result_vbo.gl_sync()
self._select_point_program.use()
glUniform1ui(0, int(triangle_number))
glUniform3f(1, start_point[0], start_point[1], start_point[2])
glUniform3f(2, direction[0], direction[1], direction[2])
glDispatchCompute(*self.group_size)
selected_triangle_number = self._selected_counter_acbo.get_value(ctypes.c_uint32)[0]
res = self._intersect_result_vbo.get_value(ctypes.c_float, (selected_triangle_number, 4))
closet = [0, 0, 0, 9999999]
for r in res:
if r[3] < closet[3]:
closet = r
self._need_select_point = False
if closet[3] != 9999999 and closet[3] > 0:
self.add_direct_control_point(start_point + closet[3] * direction)
self._intersect_point_parameter = np.array(closet[:3], dtype='f4')
def select_point_gpu(self, start_point, direction, triangle_number):
self._need_select_point = True
self._intersect_result_vbo.capacity = triangle_number * 16
self._select_argument = [np.array(start_point).reshape((4,))[:3], np.array(direction).reshape((4,))[:3],
triangle_number]
@property
def group_size(self):
return [int(self._select_argument[2] / 512 + 1), 1, 1]
def set_control_points(self, control_points):
self._b_spline_body.change_control_points(control_points)
self._control_point_position_vbo.async_update(self.get_control_point_data())
self._control_point_for_sample_ubo.async_update(self._b_spline_body.get_control_point_for_sample())
self._control_points_changed = True
def get_control_point_str(self):
return '_'.join([str(x) for x in self._b_spline_body.control_point_number])
def get_bspline_body_size(self):
return self._b_spline_body.step
def get_modify_range(self):
return self._b_spline_body.modify_range