import bpy
import math
from statistics import median
from mathutils import Vector
from .... utility import method_handler, modifier
from bpy.props import EnumProperty, StringProperty
from mathutils.geometry import intersect_point_line
from .... utility import addon, view3d
from .... graphics.drawing2d import draw_text
class HOPS_OT_MODS_displace(bpy.types.Operator):
bl_idname = "hops.mods_displace"
bl_label = "Adjust Displace Modifier"
bl_description = "Adjust Displace Modifier"
bl_options = {"REGISTER", "UNDO", "GRAB_CURSOR", "BLOCKING", "INTERNAL"}
axis: EnumProperty(
name = "Mode",
description = "",
items = [
('X', "x", "Use x axis"),
('Y', "y", "Use y axis"),
('Z', "z", "Use z axis")],
default = 'X')
modname: StringProperty(
name = "Deform modifier name",
default = 'HOPS_displace_y')
@classmethod
def poll(cls, context):
return getattr(context.active_object, "type", "") == "MESH"
def invoke(self, context, event):
ob = context.active_object
self.frontface, self.backface = self.faces(context, ob)
self.mouse = Vector((event.mouse_region_x, event.mouse_region_y))
mouse3d = view3d.location2d_to_location3d(self.mouse[0], self.mouse[1], self.frontface)
intersect = intersect_point_line(mouse3d, self.backface, self.frontface)
p1_to_m3d = (self.backface - intersect[0]).length
self.p1_to_p2 = (self.backface - self.frontface).length
p2_to_m3d = (self.frontface - intersect[0]).length
if self.axis == 'X':
self.p2_to_m3d = p2_to_m3d / context.object.scale[0]
elif self.axis == 'Y':
self.p2_to_m3d = p2_to_m3d / context.object.scale[1]
elif self.axis == 'Z':
self.p2_to_m3d = p2_to_m3d / context.object.scale[2]
if p1_to_m3d < self.p1_to_p2:
self.p2_to_m3d = - self.p2_to_m3d
modifier = ob.modifiers[self.modname]
self.start = modifier.strength
self.strength = modifier.strength
self.delta = 0
self.delta_mouse = intersect_point_line(mouse3d, self.backface, self.frontface)
self.offset = self.start
self.ctrl = False
self.draw_handler = bpy.types.SpaceView3D.draw_handler_add(self.draw_ui, (context, ), "WINDOW", "POST_PIXEL")
context.window_manager.modal_handler_add(self)
return {"RUNNING_MODAL"}
def modal(self, context, event):
self.mouse = Vector((event.mouse_region_x, event.mouse_region_y))
ob = context.active_object
frontface, backface = self.faces(context, ob)
mouse3d = view3d.location2d_to_location3d(self.mouse[0], self.mouse[1], frontface)
object = bpy.data.objects[context.active_object.name]
modifier = object.modifiers[self.modname]
intersect = intersect_point_line(mouse3d, self.backface, self.frontface)
p2_to_m3d = (self.frontface - intersect[0]).length
p1_to_m3d = (self.backface - intersect[0]).length
if p1_to_m3d < self.p1_to_p2:
p2_to_m3d = - p2_to_m3d
else:
if p1_to_m3d < p2_to_m3d:
p2_to_m3d = - p2_to_m3d
if self.axis == 'X':
p2_to_m3d = p2_to_m3d / context.object.scale[0]
elif self.axis == 'Y':
p2_to_m3d = p2_to_m3d / context.object.scale[1]
elif self.axis == 'Z':
p2_to_m3d = p2_to_m3d / context.object.scale[2]
if event.shift:
if event.ctrl:
strength = ((self.offset) + (p2_to_m3d - (self.p2_to_m3d)))
self.delta = strength
strength = (round(strength, 2))
self.delta_mouse = intersect_point_line(mouse3d, self.backface, self.frontface)
else:
new_distace = ((self.delta_mouse[0] - intersect[0]).length)
if intersect[1] < self.delta_mouse[1]:
new_distace = -new_distace
strength = ((self.delta) + (new_distace / 10))
self.offset = strength - ((p2_to_m3d) - (self.p2_to_m3d))
else:
strength = ((self.offset) + (p2_to_m3d - (self.p2_to_m3d)))
self.delta = strength
if self.ctrl:
if event.ctrl:
if event.shift:
strength = (round(strength, 2))
else:
strength = (round(strength, 1))
self.delta_mouse = intersect_point_line(mouse3d, self.backface, self.frontface)
modifier.strength = strength
self.strength = strength
if self.ctrl is False:
if event.type == "LEFT_CTRL":
if event.value == 'RELEASE':
self.ctrl = True
context.area.header_text_set("Hardops Move Modal: Displace Strenght: {}".format(round(strength, 4)))
if event.type == 'LEFTMOUSE':
context.area.header_text_set(text=None)
# if event.value == 'RELEASE':
self.remove_ui()
return {'FINISHED'}
if event.type in ("ESC", "RIGHTMOUSE"):
context.area.header_text_set(text=None)
self.remove_ui()
return {'CANCELLED'}
return {'RUNNING_MODAL'}
def add_displace_modifier(self, object):
modifier = object.modifiers.new(name="HOPS_displace_y", type="SCREW")
modifier.direction = 'Y'
modifier.strength = 12
modifier.space = 'GLOBAL'
def faces(self, context, ob):
bbox_corners = [ob.matrix_world @ Vector(corner) for corner in modifier.unmodified_bounds(ob)]
if self.axis == 'X':
frontface = median([bbox_corners[4], bbox_corners[5], bbox_corners[7], bbox_corners[6]])
backface = ob.matrix_world @ (ob.matrix_world.inverted() @ frontface + Vector((-1, 0, 0)))
elif self.axis == 'Z':
frontface = median([bbox_corners[1], bbox_corners[2], bbox_corners[5], bbox_corners[6]])
backface = ob.matrix_world @ (ob.matrix_world.inverted() @ frontface + Vector((0, 0, -1)))
elif self.axis == 'Y':
frontface = median([bbox_corners[2], bbox_corners[3], bbox_corners[6], bbox_corners[7]])
backface = ob.matrix_world @ (ob.matrix_world.inverted() @ frontface + Vector((0, -1, 0)))
return frontface, backface
def draw_ui(self, context):
method_handler(self._draw_ui,
arguments = (context, ),
identifier = F'{self.bl_label} UI Shader',
exit_method = self.remove_ui)
def _draw_ui(self, context):
if addon.preference().display.display_text:
location2d = view3d.location3d_to_location2d(median([self.backface, self.frontface]))
draw_text("{}".format(round(self.strength, 4)),
location2d.x, location2d.y, size=addon.preference().display.display_text_size, color=addon.preference().color.Hops_hud_text_color)
def remove_ui(self):
if self.draw_handler:
self.draw_handler = bpy.types.SpaceView3D.draw_handler_remove(self.draw_handler, "WINDOW")