Materials and Textures

• There are lots of shaders in unity
• There lots of different options
  • Albedo is the main color you want to set
  • If you’re using a texture file, the Albedo will be replaced
• Just DRAG AND DROP THE MATERIAL to the object you want to have that material. Then it will replace the current default material.

Textures

• https://polyhaven.com/
• PBR Texturing
  • the process of creating digital two-dimensional images which store surface and color information which will be projected onto a 3D object
• PBR map (texture map)
  • Used in Physically-Based Rendering to define surface properties and simulate the interaction of light with materials, ultimately impacting the final visual result
  • Different ways of how a material is “shown” in real world
    • The diffuse file: The map we’re loading to be the texture image file applied to the actual objects
    • The normal map: Tells the engine where things should look bumpy!
      • This requires the texture type to be Normal Map (make sure of this in the Inspector)
    • The roughness map: How much things are reflected in different areas
      • “Metallic”
• You can click the tiny circle to choose the diffuse file for the Albedo
  • Tiling: You can adjust how much the texture can repeat itself

Three main ways to create materials

• Any time you create a 3D object using Unity’s built in types, it automatically assigns a default materials that is NOT EDITABLE.

• To create an editable material, you should create material or import 3d models.

• Bump map

  • texture with info on how light catches a shape
  • Height map
    • In the bump map
    • uses white to black scale to show height
  • Normal map
    • In the bump map
    • uses RGB values to indicate x,y,z facing direction