01_ UE4 advanced_ PBR material

PBR texture of material , At different angles , Through different layers , To simulate some physical effects .

  Use an example of a brick wall to demonstrate different layers .

These pictures together form a material .

Create two folders

 

Import these layers

 

 

  This is the basic color picture .

Normal graph ： Give the material a bumpy three-dimensional feeling . 

 

Logo detail shadow

 

  Indicates the level of more detail .

  Represents bump .

Indicates which part is reflective and rough

Express high luminosity .

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Create a new material , Rename it to red_brick

 

 

double-click , Enter the material editor

  First drag the main material into the editor

  attachment

  Drag the normal graph in

  hold rough Figure drag in

Save material , And use this material   Decorate a stage floor .

Drag in ao picture , attachment

  take spec Picture drag in , attachment .

 

  Make the wall material

In order to make this material adapt to this wall . Add this node in the editor .

 

  Add multiply node

B The default is 1, Return the result to five pictures

 

  We can multiply Of B from 1 Set to 5

  That's the effect .

Define a constant node （ Store constants ）

  Right click this node to fill in a parameter

 

We can name this parameter scale

We now create an instance of this material

 

  These two seem to be the same ,red_brick It is made of mother material ,red_brick_insts It's a sub material , The sub material is the parameterization of the parent material , Double click to enter the material instance , Some parameters can be changed .