Bulid  >> Dither Points

• Bulid >> Dither Points command makes point sampling by texture dithering. 

• It results in more dense point cloud over bright region and more coarse point cloud over dark region.

Step   

Execute Bulid >> Dither Points  command as follows:

1. Select Bulid >> Dither Points from the menu or click the corresponding icon from the Build toolbar.

2. Pick a shell to dither points.  

3. Following dialogue should be appeared. 

Brightness option : adjust brightness of texture. Brightness affects the point density globally

Brightness Slide : adjust of contrast of texture. The more user increase the contrast, the contrast on the texture image gets bigger, which 

                            results in more dense point cloud over bright region and more coarse point cloud over dark region.

Dithering Method option : rapidform provided with 5 dithering method Javis, Floyd-Steinberg, Cierra, Burkes, Stucki 

                                       Quality of this 5 option is not different with each other, so select proper option as Preview.

Preview option : If user check Preview option, user can verify dithering result in realtime.

Dither Texture : Dither texture by user selected option.

4. Select OK to sampling points. selected shell will be sampled into point shell with no polygon.

Result

                          
                                        Before dithering                                                 Before dithering

Note

• This command can be applied to polygon shell with texture only.
• User can sample points by bright and contrast of texture.