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Sergey Sharybin authored
Was introduced by 35d9087e. Please verify addons at least loads after making changes.
Sergey Sharybin authoredWas introduced by 35d9087e. Please verify addons at least loads after making changes.
lighting_tri_lights.py 9.46 KiB
# gpl: author Daniel Schalla, maintained by meta-androcto
bl_info = {
"name": "Tri-lighting",
"author": "Daniel Schalla",
"version": (0, 1, 4),
"blender": (2, 80, 0),
"location": "View3D > Add > Lights",
"description": "Add 3 Point Lighting to Selected / Active Object",
"warning": "",
"tracker_url": "https://developer.blender.org/maniphest/task/edit/form/2/",
"category": "Lighting",
"wiki_url": "https://docs.blender.org/manual/en/dev/addons/"
"lighting/trilighting.html",
}
import bpy
from bpy.types import Operator
from bpy.props import (
EnumProperty,
FloatProperty,
IntProperty,
)
from math import (
sin, cos,
radians,
sqrt,
)
class OBJECT_OT_TriLighting(Operator):
bl_idname = "object.trilighting"
bl_label = "Tri-Lighting Creator"
bl_description = ("Add 3 Point Lighting to Selected / Active Object\n"
"Needs an existing Active Object")
bl_options = {'REGISTER', 'UNDO'}
COMPAT_ENGINES = {'CYCLES', 'EEVEE'}
height: FloatProperty(
name="Height",
default=5
)
distance: FloatProperty(
name="Distance",
default=5,
min=0.1,
subtype="DISTANCE"
)
energy: IntProperty(
name="Base Energy",
default=3,
min=1
)
contrast: IntProperty(
name="Contrast",
default=50,
min=-100, max=100,
subtype="PERCENTAGE"
)
leftangle: IntProperty(
name="Left Angle",
default=26,
min=1, max=90,
subtype="ANGLE"
)
rightangle: IntProperty(
name="Right Angle",
default=45,
min=1, max=90,
subtype="ANGLE"
)
backangle: IntProperty(
name="Back Angle",
default=235,
min=90, max=270,
subtype="ANGLE"
)
Light_Type_List = [
('POINT', "Point", "Point Light"),
('SUN', "Sun", "Sun Light"),
('SPOT', "Spot", "Spot Light"),
('AREA', "Area", "Area Light")
]
primarytype: EnumProperty(
attr='tl_type',
name="Key Type",
description="Choose the types of Key Lights you would like",
items=Light_Type_List,
default='AREA'
)
secondarytype: EnumProperty(
attr='tl_type',
name="Fill + Back Type",
description="Choose the types of secondary Lights you would like",
items=Light_Type_List,
default="AREA"
)
@classmethod
def poll(cls, context):
return context.active_object is not None
def draw(self, context):
layout = self.layout
layout.label(text="Position:")
col = layout.column(align=True)
col.prop(self, "height")
col.prop(self, "distance")
layout.label(text="Light:")
col = layout.column(align=True)
col.prop(self, "energy")
col.prop(self, "contrast")
layout.label(text="Orientation:")
col = layout.column(align=True)
col.prop(self, "leftangle")
col.prop(self, "rightangle")
col.prop(self, "backangle")
col = layout.column()
col.label(text="Key Light Type:")
col.prop(self, "primarytype", text="")
col.label(text="Fill + Back Type:")
col.prop(self, "secondarytype", text="")
def execute(self, context):
try:
collection = context.collection
scene = context.scene
view = context.space_data
if view.type == 'VIEW_3D':
camera = view.camera
else:
camera = scene.camera
if (camera is None):
cam_data = bpy.data.cameras.new(name='Camera')
cam_obj = bpy.data.objects.new(name='Camera', object_data=cam_data)
collection.objects.link(cam_obj)
scene.camera = cam_obj
bpy.ops.view3d.camera_to_view()
camera = cam_obj
bpy.ops.view3d.view_axis(type='TOP')
obj = bpy.context.view_layer.objects.active
# Calculate Energy for each Lamp
if(self.contrast > 0):
keyEnergy = self.energy
backEnergy = (self.energy / 100) * abs(self.contrast)
fillEnergy = (self.energy / 100) * abs(self.contrast)
else:
keyEnergy = (self.energy / 100) * abs(self.contrast)
backEnergy = self.energy
fillEnergy = self.energy
# Calculate Direction for each Lamp
# Calculate current Distance and get Delta
obj_position = obj.location
cam_position = camera.location
delta_position = cam_position - obj_position
vector_length = sqrt(
(pow(delta_position.x, 2) +
pow(delta_position.y, 2) +
pow(delta_position.z, 2))
)
if not vector_length:
# division by zero most likely
self.report({'WARNING'},
"Operation Cancelled. No viable object in the scene")
return {'CANCELLED'}
single_vector = (1 / vector_length) * delta_position
# Calc back position
singleback_vector = single_vector.copy()
singleback_vector.x = cos(radians(self.backangle)) * single_vector.x + \
(-sin(radians(self.backangle)) * single_vector.y)
singleback_vector.y = sin(radians(self.backangle)) * single_vector.x + \
(cos(radians(self.backangle)) * single_vector.y)
backx = obj_position.x + self.distance * singleback_vector.x
backy = obj_position.y + self.distance * singleback_vector.y
backData = bpy.data.lights.new(name="TriLamp-Back", type=self.secondarytype)
backData.energy = backEnergy
backLamp = bpy.data.objects.new(name="TriLamp-Back", object_data=backData)
collection.objects.link(backLamp)
backLamp.location = (backx, backy, self.height)
trackToBack = backLamp.constraints.new(type="TRACK_TO")
trackToBack.target = obj
trackToBack.track_axis = "TRACK_NEGATIVE_Z"
trackToBack.up_axis = "UP_Y"
# Calc right position
singleright_vector = single_vector.copy()
singleright_vector.x = cos(radians(self.rightangle)) * single_vector.x + \
(-sin(radians(self.rightangle)) * single_vector.y)
singleright_vector.y = sin(radians(self.rightangle)) * single_vector.x + \
(cos(radians(self.rightangle)) * single_vector.y)
rightx = obj_position.x + self.distance * singleright_vector.x
righty = obj_position.y + self.distance * singleright_vector.y
rightData = bpy.data.lights.new(name="TriLamp-Fill", type=self.secondarytype)
rightData.energy = fillEnergy
rightLamp = bpy.data.objects.new(name="TriLamp-Fill", object_data=rightData)
collection.objects.link(rightLamp)
rightLamp.location = (rightx, righty, self.height)
trackToRight = rightLamp.constraints.new(type="TRACK_TO")
trackToRight.target = obj
trackToRight.track_axis = "TRACK_NEGATIVE_Z"
trackToRight.up_axis = "UP_Y"
# Calc left position
singleleft_vector = single_vector.copy()
singleleft_vector.x = cos(radians(-self.leftangle)) * single_vector.x + \
(-sin(radians(-self.leftangle)) * single_vector.y)
singleleft_vector.y = sin(radians(-self.leftangle)) * single_vector.x + \
(cos(radians(-self.leftangle)) * single_vector.y)
leftx = obj_position.x + self.distance * singleleft_vector.x
lefty = obj_position.y + self.distance * singleleft_vector.y
leftData = bpy.data.lights.new(name="TriLamp-Key", type=self.primarytype)
leftData.energy = keyEnergy
leftLamp = bpy.data.objects.new(name="TriLamp-Key", object_data=leftData)
collection.objects.link(leftLamp)
leftLamp.location = (leftx, lefty, self.height)
trackToLeft = leftLamp.constraints.new(type="TRACK_TO")
trackToLeft.target = obj
trackToLeft.track_axis = "TRACK_NEGATIVE_Z"
trackToLeft.up_axis = "UP_Y"
except Exception as e:
self.report({'WARNING'},
"Some operations could not be performed (See Console for more info)")
print("\n[Add Advanced Objects]\nOperator: "
"object.trilighting\nError: {}".format(e))
return {'CANCELLED'}
return {'FINISHED'}
def menu_func(self, context):
self.layout.operator(OBJECT_OT_TriLighting.bl_idname, text="3 Point Lights", icon='LIGHT')
# Register all operators and menu
def register():
bpy.utils.register_class(OBJECT_OT_TriLighting)
bpy.types.VIEW3D_MT_light_add.append(menu_func)
def unregister():
bpy.utils.unregister_class(OBJECT_OT_TriLighting)
bpy.types.VIEW3D_MT_light_add.remove(menu_func)
if __name__ == "__main__":
register()