Class: Mittsu::CubeCamera

Inherits:
Object3D show all
Defined in:
lib/mittsu/cameras/cube_camera.rb

Constant Summary

Constants inherited from Object3D

Object3D::DefaultUp

Instance Attribute Summary collapse

Attributes inherited from Object3D

#active, #cast_shadow, #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 Object3D

#active?, #add, #add_opengl_object, #apply_matrix, #buffer_material, #clone, #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(near, far, cube_resolution) ⇒ CubeCamera

Returns a new instance of CubeCamera.



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# File 'lib/mittsu/cameras/cube_camera.rb', line 5

def initialize(near, far, cube_resolution)
  super()

  @type = 'CubeCamera'

  fov = 90.0
  aspect = 1.0

  @camera_px = Mittsu::PerspectiveCamera.new(fov, aspect, near, far)
  @camera_px.up.set(0.0, -1.0, 0.0)
  @camera_px.look_at(Mittsu::Vector3.new(1.0, 0.0, 0.0))
  self.add(@camera_px)

  @camera_nx = Mittsu::PerspectiveCamera.new(fov, aspect, near, far)
  @camera_nx.up.set(0.0, -1.0, 0.0)
  @camera_nx.look_at(Mittsu::Vector3.new(-1.0, 0.0, 0.0))
  self.add(@camera_nx)

  @camera_py = Mittsu::PerspectiveCamera.new(fov, aspect, near, far)
  @camera_py.up.set(0.0, 0.0, 1.0)
  @camera_py.look_at(Mittsu::Vector3.new(0.0, 1.0, 0.0))
  self.add(@camera_py)

  @camera_ny = Mittsu::PerspectiveCamera.new(fov, aspect, near, far)
  @camera_ny.up.set(0.0, 0.0, 1.0)
  @camera_ny.look_at(Mittsu::Vector3.new(0.0, -1.0, 0.0))
  self.add(@camera_ny)

  @camera_pz = Mittsu::PerspectiveCamera.new(fov, aspect, near, far)
  @camera_pz.up.set(0.0, -1.0, 0.0)
  @camera_pz.look_at(Mittsu::Vector3.new(0.0, 0.0, 1.0))
  self.add(@camera_pz)

  @camera_nz = Mittsu::PerspectiveCamera.new(fov, aspect, near, far)
  @camera_nz.up.set(0.0, -1.0, 0.0)
  @camera_nz.look_at(Mittsu::Vector3.new(0.0, 0.0, -1.0))
  self.add(@camera_nz)

  @render_target = Mittsu::OpenGLRenderTargetCube(cube_resolution, cube_resolution, format: Mittsu::RGBFormat, mag_filter: Mittsu::LinearFilter, min_filter: Mittsu::LinearFilter)
end

Instance Attribute Details

#render_target ⇒ Object

Returns the value of attribute render_target.



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# File 'lib/mittsu/cameras/cube_camera.rb', line 3

def render_target
  @render_target
end

Instance Method Details

#update_cube_map(renderer, scene) ⇒ Object 



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# File 'lib/mittsu/cameras/cube_camera.rb', line 46

def update_cube_map(renderer, scene)
  generate_mipmaps = render_target.generate_mipmaps

  render_target.generate_mipmaps = false

  render_target.active_cube_face = 0
  renderer.render(scene, @camera_px, render_target)

  render_target.active_cube_face = 1
  renderer.render(scene, @camera_nx, render_target)

  render_target.active_cube_face = 2
  renderer.render(scene, @camera_py, render_target)

  render_target.active_cube_face = 3
  renderer.render(scene, @camera_ny, render_target)

  render_target.active_cube_face = 4
  renderer.render(scene, @camera_pz, render_target)

  render_target.generate_mipmaps = generate_mipmaps

  render_target.active_cube_face = 5
  renderer.render(scene, @camera_nz, render_target)
end