Applying a Shadow Sticker

This task shows you how to apply a shadow sticker. 

Open the Light_map.CATProduct document.

  1. Click Apply Shadow Sticker in the Apply Material toolbar. The Shadow dialog box is displayed:

  2. Select Teapot (Teapot.1) and Plane (Plane.1) in the specification tree. The teapot and plane to which the shadow has to be applied is selected in the geometry. The Selection field is updated. The geometry is as shown:

  3. Click OK in the Shadow dialog box. The specification tree shows the created shadow.
If the model has lots of triangles in it use large texture sizes. You can also apply different shadow textures on different parts of the model to have better control on the quality of the shadows depending on the importance or complexity of the geometry where the sticker is applied.
  • You can create as many shadows as you want.
  • When a shadow sticker is created, it contains an empty texture. To see the actual shadow, the shadow sticker needs to be rendered.
  • All the shadows created are displayed in the specification tree as Shadow 1, Shadow 2, etc. under the Stickers node.
  • If regular stickers are applied to the geometry, the shadow sticker should be below the regular sticker in the specification tree, else the shadow sticker will not be rendered.

Rendering Shadow Stickers

This task shows you how to render a shadow sticker that was previously created. 
Open the Light_map.CATProduct document. Follow the steps mentioned in Applying a Shadow Sticker.

  1. Click Render Shadow Stickers in the Apply Material toolbar. The Render Shadow Stickers dialog box is displayed.

  • The number of shadows you had previously created by clicking Apply Shadow Sticker are displayed under the Select Stickers to Render field.
  • Stickers in Hide state are not displayed in the dialog box.
  1. Select one of the stickers (in case more than 1 are displayed in the dialog box) and click OK in the Render Shadow Stickers dialog box. The Computing... dialog box is displayed. The shadow sticker is applied to the geometry.

    The rendered object with shadows is displayed.
  • Pre-R19, this functionality required the RTR and PH1/PHS licenses. However, this functionality now requires only the RTR or MRR license.
  • The shadows created depend on the source of light. For more information regarding creating a light source, refer Light Sources.
  • If no light source is created, the default light settings in CATIA are taken into account.