Class: Rendering::ShadowMapArray

Inherits:
Object
  • Object
show all
Defined in:
lib/engine/rendering/shadow_map_array.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(width: 2048, height: 2048, layer_count: 4) ⇒ ShadowMapArray

Returns a new instance of ShadowMapArray.



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# File 'lib/engine/rendering/shadow_map_array.rb', line 7

def initialize(width: 2048, height: 2048, layer_count: 4)
  @width = width
  @height = height
  @layer_count = layer_count
  create_framebuffer
  create_depth_texture_array
  check_framebuffer_complete
end

Instance Attribute Details

#depth_texture ⇒ Object (readonly)

Returns the value of attribute depth_texture.



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# File 'lib/engine/rendering/shadow_map_array.rb', line 5

def depth_texture
  @depth_texture
end

#framebuffer ⇒ Object (readonly)

Returns the value of attribute framebuffer.



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# File 'lib/engine/rendering/shadow_map_array.rb', line 5

def framebuffer
  @framebuffer
end

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/engine/rendering/shadow_map_array.rb', line 5

def height
  @height
end

#layer_count ⇒ Object (readonly)

Returns the value of attribute layer_count.



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# File 'lib/engine/rendering/shadow_map_array.rb', line 5

def layer_count
  @layer_count
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/engine/rendering/shadow_map_array.rb', line 5

def width
  @width
end

Instance Method Details

#bind_layer(layer_index) ⇒ Object 



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# File 'lib/engine/rendering/shadow_map_array.rb', line 16

def bind_layer(layer_index)
  raise "Layer index #{layer_index} out of bounds (max: #{@layer_count - 1})" if layer_index >= @layer_count

  Engine::GL.BindFramebuffer(Engine::GL::FRAMEBUFFER, @framebuffer)
  Engine::GL.FramebufferTextureLayer(Engine::GL::FRAMEBUFFER, Engine::GL::DEPTH_ATTACHMENT, @depth_texture, 0, layer_index)
  Engine::GL.Viewport(0, 0, @width, @height)
  Engine::GL.Clear(Engine::GL::DEPTH_BUFFER_BIT)
end