The object menu


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'With texture'
This gives the 3D-objects the selected textures as surface. To the the film calculation also the selected film can be used.
The source of light and the observer apply to the lighting and perspective of the 3D-objects. At present are only simple dithering and starting from 8 bits depth of shade the Gouraudshading with facet avoidance (interpolation of the normal vectors) implemented.
'Ambience of light'
This is a base lighting intensity
'Back face culling'
This suppresses surfaces, whose normal vector shows to the rear. From this a higher speed results. It is however only possible with closed bodies.
'Z-buffer'
This creates an additional memory for the depth of the individual surfaces and enables also complex representations of bodies with cutting sections. This function is implemented only in connection with Gouraud Shading. On Milan computers in the general adjustment menu 'Direct' should be enabled for the output, since all outputs are faster.