Class: PBRT::ParameterList

Inherits:
Object
  • Object
show all
Defined in:
lib/pbrt/parameter_list.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name_value_pairs) ⇒ ParameterList

Returns a new instance of ParameterList.



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# File 'lib/pbrt/parameter_list.rb', line 23

def initialize(name_value_pairs)
  @name_value_pairs = name_value_pairs
end

Class Method Details

.allow_shapes_to_override_materials!(params, type_signature) ⇒ Object 



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# File 'lib/pbrt/parameter_list.rb', line 33

def self.allow_shapes_to_override_materials!(params, type_signature)
  return unless type_signature[:allow_material_overrides]
  type_signature.delete(:allow_material_overrides)

  surplus = params.keys - type_signature.keys

  surplus.each do |key|
    type = Builder::Material::ALL_PARAMS[key]
    type_signature[key] = type if type
  end
end

.from(params, type_signature) ⇒ Object 



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# File 'lib/pbrt/parameter_list.rb', line 3

def self.from(params, type_signature)
  allow_shapes_to_override_materials!(params, type_signature)

  Signature.new(type_signature).check(params)

  pairs = params.map do |name, value|
    type = type_signature[name]

    type, value = Texture.unpack(type, value)

    if type == :spectrum || value.is_a?(Spectrum)
      type, value = Spectrum.unpack(value)
    end

    [Parameter.new(type, name), Values.new(value)]
  end

  new(pairs.to_h)
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/pbrt/parameter_list.rb', line 27

def to_s
  @name_value_pairs.map do |parameter, values|
    [parameter.to_s, "[#{values}]"].join(" ")
  end.join(" ")
end