What is Materials

Preface

I have found good articles about explaining about materials. Therefore it is a good time to clean that up.

Source From

http://www.manufato.com/?p=902 https://m.blog.naver.com/cccani/221233015525

Summary

  • World is only visible because they are reflecting light.
  • Diffuse Reflection
    • The light is reflected from the surface at multiple different angles.
  • Specular Reflection
    • The light that comes in and reflects out from the surface make the same angle.
  • Conductors alter the color of the specular reflection, tinting them. While the Dielectrics materials will be neutral to the light and not affect the color of the specular reflection.
  • In order to get a good non-metallic result (neutral specular color), we need to neutralize the specular reflection using the inverse color of the diffuse.

Nomenclature

  • 3D model: Geometric data for 3d computer graphics
  • Material: Enhancement of texture mapping. Result of combination of shaders and textures.
  • Shaders: Tell the renderer how an object should be displayed.
  • Textures: Provide visual information to the shader.
  • Normal Maps: Information contains the light bounce of the surface.
  • Alpha Maps: Define transparency.
  • Dielectrics: Do not conduct electricity.
  • Conductor: Conduct electricity.
Home