how to render file in catia so as make them more appealing & realistic?

first of all rendering completely depends on your perception of how well you know the things you are creating

  1. Step 1:

    Click on the apply material Button and choose the most suitable material for your model .
    It is not necessary that you choose the manufacturing material of your design.

  2. Step 2:

    Then click on the camera icon( RENDER )

  3. Step 3:

    Follow the Instructions thereafter & don't forget to save your rendered image by clicking on the floppy button

  4. Step 4:

    Example of part after rendering .