Class: Mittsu::SpotLight

Inherits:
Light show all
Defined in:
lib/mittsu/lights/spot_light.rb,
lib/mittsu/renderers/opengl/lights/spot_light.rb

Defined Under Namespace

Classes: Cache

Constant Summary collapse

TYPE = 
:spot

Constants inherited from Object3D

Object3D::DefaultUp

Instance Attribute Summary collapse

Attributes inherited from Light

#camera_helper, #color, #distance, #intensity, #only_shadow

Attributes inherited from Object3D

#active, #children, #frustum_culled, #geometry, #id, #initted, #matrix, #matrix_auto_update, #matrix_world, #matrix_world_needs_update, #model_view_matrix, #morph_target_influences, #name, #parent, #position, #quaternion, #receive_shadow, #render_order, #renderer, #rotation, #rotation_auto_update, #scale, #type, #up, #user_data, #uuid, #visible

Instance Method Summary collapse

Methods inherited from Light

null_remaining_lights, #project, #setup, #type

Methods inherited from Object3D

#active?, #add, #add_opengl_object, #apply_matrix, #buffer_material, #deinit, #get_object_by_id, #get_object_by_name, #get_object_by_property, #get_world_direction, #get_world_position, #get_world_quaternion, #get_world_rotation, #get_world_scale, #init, #init_geometry, #load_uniforms_matrices, #local_to_world, #look_at, #print_tree, #project, #raycast, #remove, #rotate_on_axis, #rotate_x, #rotate_y, #rotate_z, #set_rotation_from_axis_angle, #set_rotation_from_euler, #set_rotation_from_matrix, #set_rotation_from_quaternion, #setup_matrices, #to_json, #to_s, #translate_on_axis, #translate_x, #translate_y, #translate_z, #traverse, #traverse_ancestors, #traverse_visible, #update_matrix, #update_matrix_world, #world_to_local

Methods included from EventDispatcher

#add_event_listener, #dispatch_event, #has_event_listener, #remove_event_listener

Constructor Details

#initialize(color = nil, intensity = 1.0, distance = 0.0, angle = (::Math::PI / 3.0), exponent = 10.0, decay = 1.0) ⇒ SpotLight

Returns a new instance of SpotLight.



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# File 'lib/mittsu/lights/spot_light.rb', line 23

def initialize(color = nil, intensity = 1.0, distance = 0.0, angle = (::Math::PI / 3.0), exponent = 10.0, decay = 1.0)
  super(color)

  @type = 'SpotLight'

  @position.set( 0, 1, 0 )
  @target = Object3D.new

  @intensity = intensity
  @distance = distance
  @angle = angle
  @exponent = exponent
  @decay = decay # for physically correct lights, should be 2.

  @cast_shadow = false
  @only_shadow = false

  #

  @shadow_camera_near = 50.0
  @shadow_camera_far = 5000.0
  @shadow_camera_fov = 50.0

  @shadow_camera_visible = false

  @shadow_bias = 0
  @shadow_darkness = 0.5

  @shadow_map_width = 512
  @shadow_map_height = 512

  #

  @shadow_map = nil
  @shadow_map_size = nil
  @shadow_camera = nil
  @shadow_matrix = nil
end

Instance Attribute Details

#angle ⇒ Object

Returns the value of attribute angle.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def angle
  @angle
end

#cast_shadow ⇒ Object

Returns the value of attribute cast_shadow.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def cast_shadow
  @cast_shadow
end

#decay ⇒ Object

Returns the value of attribute decay.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def decay
  @decay
end

#exponent ⇒ Object

Returns the value of attribute exponent.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def exponent
  @exponent
end

#shadow_bias ⇒ Object

Returns the value of attribute shadow_bias.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_bias
  @shadow_bias
end

#shadow_camera ⇒ Object

Returns the value of attribute shadow_camera.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_camera
  @shadow_camera
end

#shadow_camera_far ⇒ Object

Returns the value of attribute shadow_camera_far.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_camera_far
  @shadow_camera_far
end

#shadow_camera_fov ⇒ Object

Returns the value of attribute shadow_camera_fov.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_camera_fov
  @shadow_camera_fov
end

#shadow_camera_near ⇒ Object

Returns the value of attribute shadow_camera_near.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_camera_near
  @shadow_camera_near
end

#shadow_camera_visible ⇒ Object

Returns the value of attribute shadow_camera_visible.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_camera_visible
  @shadow_camera_visible
end

#shadow_darkness ⇒ Object

Returns the value of attribute shadow_darkness.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_darkness
  @shadow_darkness
end

#shadow_map ⇒ Object

Returns the value of attribute shadow_map.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_map
  @shadow_map
end

#shadow_map_height ⇒ Object

Returns the value of attribute shadow_map_height.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_map_height
  @shadow_map_height
end

#shadow_map_size ⇒ Object

Returns the value of attribute shadow_map_size.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_map_size
  @shadow_map_size
end

#shadow_map_width ⇒ Object

Returns the value of attribute shadow_map_width.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_map_width
  @shadow_map_width
end

#shadow_matrix ⇒ Object

Returns the value of attribute shadow_matrix.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def shadow_matrix
  @shadow_matrix
end

#target ⇒ Object

Returns the value of attribute target.



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# File 'lib/mittsu/lights/spot_light.rb', line 5

def target
  @target
end

Instance Method Details

#clone ⇒ Object 



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# File 'lib/mittsu/lights/spot_light.rb', line 70

def clone

  light = SpotLight.new

  super(light)

  light.target = @target.clone

  light.intensity = @intensity
  light.distance = @distance
  light.angle = @angle
  light.exponent = @exponent
  light.decay = @decay

  light.cast_shadow = @cast_shadow
  light.only_shadow = @only_shadow

  #

  light.shadow_camera_near = @shadow_camera_near
  light.shadow_camera_far = @shadow_camera_far
  light.shadow_camera_fov = @shadow_camera_fov

  light.shadow_camera_visible = @shadow_camera_visible

  light.shadow_bias = @shadow_bias
  light.shadow_darkness = @shadow_darkness

  light.shadow_map_width = @shadow_map_width
  light.shadow_map_height = @shadow_map_height

  return light
end

#is_virtual=(value) ⇒ Object 



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# File 'lib/mittsu/lights/spot_light.rb', line 66

def is_virtual=(value)
  @is_virtual = value
end

#setup_specific(index) ⇒ Object 



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# File 'lib/mittsu/renderers/opengl/lights/spot_light.rb', line 15

def setup_specific(index)
  offset = index * 3

  OpenGLHelper.set_color_linear(@cache.colors, offset, color, intensity)

  @_direction.set_from_matrix_position(matrix_world)

  positions = @cache.positions
  positions[offset]     = @_direction.x
  positions[offset + 1] = @_direction.y
  positions[offset + 2] = @_direction.z

  @cache.distances[index] = distance

  @_vector3.set_from_matrix_position(target.matrix_world)
  @_direction.sub(@_vector3)
  @_direction.normalize

  directions = @cache.directions
  directions[offset]     = @_direction.x
  directions[offset + 1] = @_direction.y
  directions[offset + 2] = @_direction.z

  @cache.angles_cos[index] = ::Math.cos(angle)
  @cache.exponents[index] = exponent;
  @cache.decays[index] = distance.zero? ? 0.0 : decay
end

#to_sym ⇒ Object 



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# File 'lib/mittsu/renderers/opengl/lights/spot_light.rb', line 43

def to_sym
  :spot
end

#virtual? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mittsu/lights/spot_light.rb', line 62

def virtual?
  @is_virtual
end