Picture Resolution  
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In this box you determine the resolution at which the picture is calculated, independent of the display window. This permits calculation to any resolutions from 32 x 32 to 6000 x 6000 pixels. Please remember that technical complexity is not necessarily very meaningful. An extremely complex picture that at a resolution of 640* 480 pixels requires a rendering time of, say, 10 minutes, will, at a resolution of 6000* 6000 points - corresponding to 117 times the number of pixels - require almost 20 hours rendering time. The same is also true for the required storage area. A picture of 640* 480 pixels with all effects switched on needs 2.5 MB while rendering for the picture and effect-buffers (maximum 9 byte per picture-point, if all effects like light reflections and depth of focus are switched on). At a resolution of 6000* 6000 pixels would require memory space of about 300 MB.  
You can choose from some preset standard resolutions in the list box or the resolution can be changed to meet specific requirements at any time through the keyboard.