Applying a 3D Alternate Vein Texture

1. Right-click the material behavior in the specification tree then select xxx_Rendering object > Definition to display the Rendering Properties dialog box.

2. Select the Texture tab then select Alternate Vein in the Type list.

   
   
   

   This texture creates an interpolation by alternating up to 4 vein colors. In the above dialog box, each color square represents a vein. Alternate Vein texture differs from Vein texture since it interpolates the colors of complete veins (and not half-veins as for Vein texture).

   When a 3D texture is selected, the corresponding texture image is projected onto the object in the geometry area so that you can get a better idea of the final result:

   
   
   

   However, note that:

   
   
   • the projected image does not reflect exactly what you get when rendering the image
   • the texture has a low resolution in order not to deteriorate performance and as a consequence, the image projected onto the object may sometimes be pixelated.

   Warning: You can also choose a mapping type but do not forget that this mapping is relevant for real time display only, it has no impact when computing the rendered image.

3. To modify a Vein Color, click the corresponding square button then select the desired color from the Color chooser.

4. Use the slider or the box to set the width of the vein. When Enable is selected, the corresponding color is activated.

5. The Deformation area lets you define noise parameters. Refer to About 3D Textures for detailed information.

6. The Bump area lets you define an Amplitude value but this time, in order to create an "embossing".

7. Use the Transformation area to adjust the mapped texture.

8. Click OK when satisfied with your parameters.

The two images below compare the different results you can obtain using a standard texture and a 3D texture of type Alternate Vein: