Defining Reflection Settings 

This task explains how to define advanced reflection settings for a material in case you do not intend to use the default environment reflections.
Open the ApplyMaterial.CATProduct document.
  1. Access the Aluminium material properties (refer to About Material Properties for detailed information on the various methods you can use to access material properties).

    The Properties dialog box is displayed:


  2. Click the ... button beside the Reflectivity box to open the Advanced Reflection Settings dialog box:

    This displays the default environment provided which can be seen on the teapot you opened a few steps before. However, as this image is used for reflection purposes only, you cannot be able to visualize the environment reflections on the object unless you set the Reflectivity parameter to a non-zero value (provided that the object itself is reflecting).
  3. Use the Environment Image box to define another texture image. You can either enter a file name directly in the box or click ... to navigate to the desired file using the File Selection dialog box.

    The Reset Value button lets you reset the environment image to the default image.

    Depending on the document environments (i.e. the method to be used to access your documents) you allowed in the Document settings, an additional window may appear simultaneously to the File Selection dialog box to let you access your documents using an alternate method:

    In our example, four document environments have been allowed among which the DLName environment. If you want to access your texture files using DLNames, for instance, just click Logical File System: this opens a specific dialog box dedicated to the DLName environment.
    For detailed information on this dialog box, refer to Opening Existing Documents Using the Browse Window.
  4. If you wish to create your own environment image, click the Environment image generator button to open the Environment Image Generator dialog box:

  5. In the upper part of the dialog box, click each environment wall (i.e. "Up", "Back", etc.) then navigate to the desired image using the File Selection dialog box.

    The resulting environment is displayed on the environment map as shown below:
  6. The Image Size list lets you choose a small, medium or large size for your environment image.

  7. Enter the name and path of the generated image in the Save as box or click the Browse Directories button to open the File Selection dialog box which lets you browse your folders to the desired location.

  8. Click OK to validate and go back to the Advanced Reflection Settings dialog box.

  9. Choose the environment Reflection Type: Chroma, Paint, Matte Metal, Bright Plastic or Custom.

    Chroma Paint Matte Metal Bright Plastic

    Selecting Custom activates the Transparency Width and Transparency Height boxes to let you specify the desired ratios (values comprised between 0 and 1) for the transparency filter.

  10. Click OK.

    The environment image is defined.
This image supersedes the environment image you may have chosen in the Environment Image File box in the Material General Settings tab.