Class: Budgie::CheckerTexture

Inherits:
Object
  • Object
show all
Includes:
GL
Defined in:
lib/budgie/checker_texture.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CheckerTexture

Returns a new instance of CheckerTexture.



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# File 'lib/budgie/checker_texture.rb', line 6

def initialize
  @id = (glGenTextures 1).first
  bind

  data = [
    [0xee, 0xee, 0xee], [0xee, 0xee, 0xee], [0xff, 0xff, 0xff], [0xff, 0xff, 0xff],
    [0xee, 0xee, 0xee], [0xee, 0xee, 0xee], [0xff, 0xff, 0xff], [0xff, 0xff, 0xff],
    [0xff, 0xff, 0xff], [0xff, 0xff, 0xff], [0xee, 0xee, 0xee], [0xee, 0xee, 0xee],
    [0xff, 0xff, 0xff], [0xff, 0xff, 0xff], [0xee, 0xee, 0xee], [0xee, 0xee, 0xee]
  ]

  data = data.flatten.pack 'C*'

  glTexImage2D GL_TEXTURE_2D,
    level = 0,
    internal_format = 3,
    width = 4,
    height = 4,
    border = 0,
    format = GL_RGB,
    type = GL_UNSIGNED_BYTE,
    data

  glTexParameteri GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST
  glTexParameteri GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST

  unbind
end

Instance Method Details

#bind ⇒ Object 



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# File 'lib/budgie/checker_texture.rb', line 35

def bind
  glBindTexture GL_TEXTURE_2D, @id
end

#unbind ⇒ Object 



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# File 'lib/budgie/checker_texture.rb', line 39

def unbind
  glBindTexture GL_TEXTURE_2D, 0
end