Method: Ray::Effect::Generator#code

Defined in:
lib/ray/effect/generator.rb

#code ⇒ String

Returns code of the pixel shader.

Returns:

  • (String) —

    code of the pixel shader



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# File 'lib/ray/effect/generator.rb', line 78

def code
  str  = "#version #@version\n"
  str << "\n"

  str << input    << "\n"
  str << uniforms << "\n"


  str << "out vec4 out_FragColor;\n" if version >= 130
  str << "\n"

  str << "/* Headers */\n"
  each do |effect|
    str << effect.header << "\n"
  end
  str << "\n"

  str << "/* Structs */\n\n"
  each do |effect|
    str << effect.struct << "\n"
  end

  str << "/* Effects parameters */\n"
  each do |effect|
    str << "uniform ray_#{effect.name} #{effect.name};\n"
  end
  str << "\n"

  str << "/* Functions */\n"
  each do |effect|
    str << effect.code << "\n"
  end

  str << "void main() {\n"
  str << default << "\n"

  each do |effect|
    str << "  if (#{effect.name}.enabled)\n"
    str << "    #@color = do_#{effect.name}(#{effect.name}, #@color);\n"
    str << "\n"
  end

  if version >= 130
    str << "  out_FragColor = #@color;\n"
  else
    str << "  gl_FragColor = #@color;\n"
  end

  str << "}\n"
end