Class: Mittsu::SpritePlugin

Inherits:
Object
  • Object
show all
Includes:
OpenGLHelper
Defined in:
lib/mittsu/renderers/opengl/plugins/sprite_plugin.rb

Constant Summary collapse

VERTICES = 
[
  -0.5, -0.5, 0.0, 0.0,
   0.5, -0.5, 1.0, 0.0,
   0.5,  0.5, 1.0, 1.0,
  -0.5,  0.5, 0.0, 1.0
]
FACES =

Float32Array

[
  0, 1, 2,
  0, 2, 3
]

Instance Method Summary collapse

Methods included from OpenGLHelper

#array_to_ptr, #array_to_ptr_easy, #glBufferData_easy, #glCreateBuffer, #glCreateFramebuffer, #glCreateRenderbuffer, #glCreateTexture, #glCreateVertexArray, #glGetParameter, mark_uniforms_lights_needs_update, painter_sort_stable, refresh_uniforms_lambert, refresh_uniforms_lights, refresh_uniforms_shadow, reverse_painter_sort_stable, set_color_linear

Constructor Details

#initialize(renderer, sprites) ⇒ SpritePlugin

Uint16Array



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# File 'lib/mittsu/renderers/opengl/plugins/sprite_plugin.rb', line 17

def initialize(renderer, sprites)
  @renderer = renderer
  @sprites = sprites
  @program = nil

  # for decomposing matrixWorld
  @sprite_position = Vector3.new
  @sprite_rotation = Quaternion.new
  @sprite_scale = Vector3.new
end

Instance Method Details

#render(scene, camera) ⇒ Object 



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# File 'lib/mittsu/renderers/opengl/plugins/sprite_plugin.rb', line 28

def render(scene, camera)
  return if @sprites.empty?

  init if @program.nil?
  setup_gl_for_render(camera)
  setup_fog(scene)

  update_positions_and_sort(camera)

  render_all_sprites(scene)

  glEnable(GL_CULL_FACE)
  @renderer.reset_gl_state
end