487 lines
14 KiB
Python
487 lines
14 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
#
|
|
# ##### END GPL LICENSE BLOCK #####
|
|
|
|
|
|
import copy
|
|
import logging
|
|
import math
|
|
import sys
|
|
import traceback
|
|
|
|
import bgl
|
|
import blf
|
|
import bpy
|
|
import gpu
|
|
import mathutils
|
|
from bpy_extras import view3d_utils
|
|
from gpu_extras.batch import batch_for_shader
|
|
from replication.constants import (STATE_ACTIVE, STATE_AUTH, STATE_CONFIG,
|
|
STATE_INITIAL, STATE_LAUNCHING_SERVICES,
|
|
STATE_LOBBY, STATE_QUITTING, STATE_SRV_SYNC,
|
|
STATE_SYNCING, STATE_WAITING)
|
|
from replication.interface import session
|
|
|
|
from .utils import find_from_attr, get_state_str
|
|
|
|
# Helper functions
|
|
|
|
def view3d_find() -> tuple:
|
|
""" Find the first 'VIEW_3D' windows found in areas
|
|
|
|
:return: tuple(Area, Region, RegionView3D)
|
|
"""
|
|
for area in bpy.data.window_managers[0].windows[0].screen.areas:
|
|
if area.type == 'VIEW_3D':
|
|
v3d = area.spaces[0]
|
|
rv3d = v3d.region_3d
|
|
for region in area.regions:
|
|
if region.type == 'WINDOW':
|
|
return area, region, rv3d
|
|
return None, None, None
|
|
|
|
|
|
def refresh_3d_view():
|
|
""" Refresh the viewport
|
|
"""
|
|
area, region, rv3d = view3d_find()
|
|
if area and region and rv3d:
|
|
area.tag_redraw()
|
|
|
|
|
|
def refresh_sidebar_view():
|
|
""" Refresh the blender viewport sidebar
|
|
"""
|
|
area, region, rv3d = view3d_find()
|
|
|
|
if area:
|
|
area.regions[3].tag_redraw()
|
|
|
|
|
|
def project_to_viewport(region: bpy.types.Region, rv3d: bpy.types.RegionView3D, coords: list, distance: float = 1.0) -> list:
|
|
""" Compute a projection from 2D to 3D viewport coordinate
|
|
|
|
:param region: target windows region
|
|
:type region: bpy.types.Region
|
|
:param rv3d: view 3D
|
|
:type rv3d: bpy.types.RegionView3D
|
|
:param coords: coordinate to project
|
|
:type coords: list
|
|
:param distance: distance offset into viewport
|
|
:type distance: float
|
|
:return: list of coordinates [x,y,z]
|
|
"""
|
|
target = [0, 0, 0]
|
|
|
|
if coords and region and rv3d:
|
|
view_vector = view3d_utils.region_2d_to_vector_3d(region, rv3d, coords)
|
|
ray_origin = view3d_utils.region_2d_to_origin_3d(region, rv3d, coords)
|
|
target = ray_origin + view_vector * distance
|
|
|
|
return [target.x, target.y, target.z]
|
|
|
|
|
|
def bbox_from_obj(obj: bpy.types.Object, radius: float) -> list:
|
|
""" Generate a bounding box for a given object by using its world matrix
|
|
|
|
:param obj: target object
|
|
:type obj: bpy.types.Object
|
|
:param radius: bounding box radius
|
|
:type radius: float
|
|
:return: list of 8 points [(x,y,z),...]
|
|
"""
|
|
coords = [
|
|
(-radius, -radius, -radius), (+radius, -radius, -radius),
|
|
(-radius, +radius, -radius), (+radius, +radius, -radius),
|
|
(-radius, -radius, +radius), (+radius, -radius, +radius),
|
|
(-radius, +radius, +radius), (+radius, +radius, +radius)]
|
|
|
|
base = obj.matrix_world
|
|
bbox_corners = [base @ mathutils.Vector(corner) for corner in coords]
|
|
|
|
return [(point.x, point.y, point.z)
|
|
for point in bbox_corners]
|
|
|
|
|
|
def generate_user_camera() -> list:
|
|
""" Generate a basic camera represention of the user point of view
|
|
|
|
:return: list of 7 points
|
|
"""
|
|
area, region, rv3d = view3d_find()
|
|
|
|
v1 = v2 = v3 = v4 = v5 = v6 = v7 = [0, 0, 0]
|
|
|
|
if area and region and rv3d:
|
|
width = region.width
|
|
height = region.height
|
|
|
|
v1 = project_to_viewport(region, rv3d, (0, 0))
|
|
v3 = project_to_viewport(region, rv3d, (0, height))
|
|
v2 = project_to_viewport(region, rv3d, (width, height))
|
|
v4 = project_to_viewport(region, rv3d, (width, 0))
|
|
|
|
v5 = project_to_viewport(region, rv3d, (width/2, height/2))
|
|
v6 = list(rv3d.view_location)
|
|
v7 = project_to_viewport(
|
|
region, rv3d, (width/2, height/2), distance=-.8)
|
|
|
|
coords = [v1, v2, v3, v4, v5, v6, v7]
|
|
|
|
return coords
|
|
|
|
|
|
def project_to_screen(coords: list) -> list:
|
|
""" Project 3D coordinate to 2D screen coordinates
|
|
|
|
:param coords: 3D coordinates (x,y,z)
|
|
:type coords: list
|
|
:return: list of 2D coordinates [x,y]
|
|
"""
|
|
area, region, rv3d = view3d_find()
|
|
if area and region and rv3d:
|
|
return view3d_utils.location_3d_to_region_2d(region, rv3d, coords)
|
|
else:
|
|
return (0, 0)
|
|
|
|
|
|
def get_bb_coords_from_obj(object: bpy.types.Object, instance: bpy.types.Object = None) -> list:
|
|
""" Generate bounding box in world coordinate from object bound box
|
|
|
|
:param object: target object
|
|
:type object: bpy.types.Object
|
|
:param instance: optionnal instance
|
|
:type instance: bpy.types.Object
|
|
:return: list of 8 points [(x,y,z),...]
|
|
"""
|
|
base = object.matrix_world
|
|
|
|
if instance:
|
|
scale = mathutils.Matrix.Diagonal(object.matrix_world.to_scale())
|
|
base = instance.matrix_world @ scale.to_4x4()
|
|
|
|
bbox_corners = [base @ mathutils.Vector(
|
|
corner) for corner in object.bound_box]
|
|
|
|
|
|
return [(point.x, point.y, point.z) for point in bbox_corners]
|
|
|
|
|
|
def get_view_matrix() -> list:
|
|
""" Return the 3d viewport view matrix
|
|
|
|
:return: view matrix as a 4x4 list
|
|
"""
|
|
area, region, rv3d = view3d_find()
|
|
|
|
if area and region and rv3d:
|
|
return [list(v) for v in rv3d.view_matrix]
|
|
|
|
|
|
class Widget(object):
|
|
""" Base class to define an interface element
|
|
"""
|
|
draw_type: str = 'POST_VIEW' # Draw event type
|
|
|
|
def poll(self) -> bool:
|
|
"""Test if the widget can be drawn or not
|
|
|
|
:return: bool
|
|
"""
|
|
return True
|
|
|
|
def draw(self):
|
|
"""How to draw the widget
|
|
"""
|
|
raise NotImplementedError()
|
|
|
|
|
|
class UserFrustumWidget(Widget):
|
|
# Camera widget indices
|
|
indices = ((1, 3), (2, 1), (3, 0),
|
|
(2, 0), (4, 5), (1, 6),
|
|
(2, 6), (3, 6), (0, 6))
|
|
|
|
def __init__(
|
|
self,
|
|
username):
|
|
self.username = username
|
|
self.settings = bpy.context.window_manager.session
|
|
|
|
@property
|
|
def data(self):
|
|
user = session.online_users.get(self.username)
|
|
if user:
|
|
return user.get('metadata')
|
|
else:
|
|
return None
|
|
|
|
def poll(self):
|
|
if self.data is None:
|
|
return False
|
|
|
|
scene_current = self.data.get('scene_current')
|
|
view_corners = self.data.get('view_corners')
|
|
|
|
return (scene_current == bpy.context.scene.name or
|
|
self.settings.presence_show_far_user) and \
|
|
view_corners and \
|
|
self.settings.presence_show_user and \
|
|
self.settings.enable_presence
|
|
|
|
def draw(self):
|
|
location = self.data.get('view_corners')
|
|
shader = gpu.shader.from_builtin('3D_UNIFORM_COLOR')
|
|
positions = [tuple(coord) for coord in location]
|
|
|
|
if len(positions) != 7:
|
|
return
|
|
|
|
batch = batch_for_shader(
|
|
shader,
|
|
'LINES',
|
|
{"pos": positions},
|
|
indices=self.indices)
|
|
|
|
bgl.glLineWidth(2.)
|
|
bgl.glEnable(bgl.GL_DEPTH_TEST)
|
|
bgl.glEnable(bgl.GL_BLEND)
|
|
bgl.glEnable(bgl.GL_LINE_SMOOTH)
|
|
|
|
shader.bind()
|
|
shader.uniform_float("color", self.data.get('color'))
|
|
batch.draw(shader)
|
|
|
|
|
|
class UserSelectionWidget(Widget):
|
|
def __init__(
|
|
self,
|
|
username):
|
|
self.username = username
|
|
self.settings = bpy.context.window_manager.session
|
|
|
|
@property
|
|
def data(self):
|
|
user = session.online_users.get(self.username)
|
|
if user:
|
|
return user.get('metadata')
|
|
else:
|
|
return None
|
|
|
|
def poll(self):
|
|
if self.data is None:
|
|
return False
|
|
|
|
user_selection = self.data.get('selected_objects')
|
|
scene_current = self.data.get('scene_current')
|
|
|
|
return (scene_current == bpy.context.scene.name or
|
|
self.settings.presence_show_far_user) and \
|
|
user_selection and \
|
|
self.settings.presence_show_selected and \
|
|
self.settings.enable_presence
|
|
|
|
def draw(self):
|
|
user_selection = self.data.get('selected_objects')
|
|
for select_ob in user_selection:
|
|
ob = find_from_attr("uuid", select_ob, bpy.data.objects)
|
|
if not ob:
|
|
return
|
|
|
|
if ob.type == 'EMPTY':
|
|
# TODO: Child case
|
|
# Collection instance case
|
|
indices = (
|
|
(0, 1), (1, 2), (2, 3), (0, 3),
|
|
(4, 5), (5, 6), (6, 7), (4, 7),
|
|
(0, 4), (1, 5), (2, 6), (3, 7))
|
|
if ob.instance_collection:
|
|
for obj in ob.instance_collection.objects:
|
|
if obj.type == 'MESH' and hasattr(obj, 'bound_box'):
|
|
positions = get_bb_coords_from_obj(obj, instance=ob)
|
|
elif hasattr(ob, 'bound_box'):
|
|
indices = (
|
|
(0, 1), (1, 2), (2, 3), (0, 3),
|
|
(4, 5), (5, 6), (6, 7), (4, 7),
|
|
(0, 4), (1, 5), (2, 6), (3, 7))
|
|
positions = get_bb_coords_from_obj(ob)
|
|
else:
|
|
indices = (
|
|
(0, 1), (0, 2), (1, 3), (2, 3),
|
|
(4, 5), (4, 6), (5, 7), (6, 7),
|
|
(0, 4), (1, 5), (2, 6), (3, 7))
|
|
|
|
positions = bbox_from_obj(ob, ob.scale.x)
|
|
|
|
shader = gpu.shader.from_builtin('3D_UNIFORM_COLOR')
|
|
batch = batch_for_shader(
|
|
shader,
|
|
'LINES',
|
|
{"pos": positions},
|
|
indices=indices)
|
|
|
|
shader.bind()
|
|
shader.uniform_float("color", self.data.get('color'))
|
|
batch.draw(shader)
|
|
|
|
|
|
class UserNameWidget(Widget):
|
|
draw_type = 'POST_PIXEL'
|
|
|
|
def __init__(
|
|
self,
|
|
username):
|
|
self.username = username
|
|
self.settings = bpy.context.window_manager.session
|
|
|
|
@property
|
|
def data(self):
|
|
user = session.online_users.get(self.username)
|
|
if user:
|
|
return user.get('metadata')
|
|
else:
|
|
return None
|
|
|
|
def poll(self):
|
|
if self.data is None:
|
|
return False
|
|
|
|
scene_current = self.data.get('scene_current')
|
|
view_corners = self.data.get('view_corners')
|
|
|
|
return (scene_current == bpy.context.scene.name or
|
|
self.settings.presence_show_far_user) and \
|
|
view_corners and \
|
|
self.settings.presence_show_user and \
|
|
self.settings.enable_presence
|
|
|
|
def draw(self):
|
|
view_corners = self.data.get('view_corners')
|
|
color = self.data.get('color')
|
|
position = [tuple(coord) for coord in view_corners]
|
|
coords = project_to_screen(position[1])
|
|
|
|
if coords:
|
|
blf.position(0, coords[0], coords[1]+10, 0)
|
|
blf.size(0, 16, 72)
|
|
blf.color(0, color[0], color[1], color[2], color[3])
|
|
blf.draw(0, self.username)
|
|
|
|
|
|
class SessionStatusWidget(Widget):
|
|
draw_type = 'POST_PIXEL'
|
|
|
|
@property
|
|
def settings(self):
|
|
return getattr(bpy.context.window_manager, 'session', None)
|
|
|
|
def poll(self):
|
|
return self.settings and self.settings.presence_show_session_status and \
|
|
self.settings.enable_presence
|
|
|
|
def draw(self):
|
|
color = [1, 1, 0, 1]
|
|
state = session.state.get('STATE')
|
|
state_str = f"{get_state_str(state)}"
|
|
|
|
if state == STATE_ACTIVE:
|
|
color = [0, 1, 0, 1]
|
|
elif state == STATE_INITIAL:
|
|
color = [1, 0, 0, 1]
|
|
|
|
blf.position(0, 10, 20, 0)
|
|
blf.size(0, 16, 45)
|
|
blf.color(0, color[0], color[1], color[2], color[3])
|
|
blf.draw(0, state_str)
|
|
|
|
|
|
class DrawFactory(object):
|
|
def __init__(self):
|
|
self.post_view_handle = None
|
|
self.post_pixel_handle = None
|
|
self.widgets = {}
|
|
|
|
def add_widget(self, name: str, widget: Widget):
|
|
self.widgets[name] = widget
|
|
|
|
def remove_widget(self, name: str):
|
|
if name in self.widgets:
|
|
del self.widgets[name]
|
|
else:
|
|
logging.error(f"Widget {name} not existing")
|
|
|
|
def clear_widgets(self):
|
|
self.widgets.clear()
|
|
|
|
def register_handlers(self):
|
|
self.post_view_handle = bpy.types.SpaceView3D.draw_handler_add(
|
|
self.post_view_callback,
|
|
(),
|
|
'WINDOW',
|
|
'POST_VIEW')
|
|
self.post_pixel_handle = bpy.types.SpaceView3D.draw_handler_add(
|
|
self.post_pixel_callback,
|
|
(),
|
|
'WINDOW',
|
|
'POST_PIXEL')
|
|
|
|
def unregister_handlers(self):
|
|
if self.post_pixel_handle:
|
|
bpy.types.SpaceView3D.draw_handler_remove(
|
|
self.post_pixel_handle,
|
|
"WINDOW")
|
|
self.post_pixel_handle = None
|
|
|
|
if self.post_view_handle:
|
|
bpy.types.SpaceView3D.draw_handler_remove(
|
|
self.post_view_handle,
|
|
"WINDOW")
|
|
self.post_view_handle = None
|
|
|
|
def post_view_callback(self):
|
|
try:
|
|
for widget in self.widgets.values():
|
|
if widget.draw_type == 'POST_VIEW' and widget.poll():
|
|
widget.draw()
|
|
except Exception as e:
|
|
logging.error(
|
|
f"Post view widget exception: {e} \n {traceback.print_exc()}")
|
|
|
|
def post_pixel_callback(self):
|
|
try:
|
|
for widget in self.widgets.values():
|
|
if widget.draw_type == 'POST_PIXEL' and widget.poll():
|
|
widget.draw()
|
|
except Exception as e:
|
|
logging.error(
|
|
f"Post pixel widget Exception: {e} \n {traceback.print_exc()}")
|
|
|
|
|
|
this = sys.modules[__name__]
|
|
this.renderer = DrawFactory()
|
|
|
|
|
|
def register():
|
|
this.renderer.register_handlers()
|
|
|
|
this.renderer.add_widget("session_status", SessionStatusWidget())
|
|
|
|
|
|
def unregister():
|
|
this.renderer.unregister_handlers()
|
|
|
|
this.renderer.clear_widgets()
|