drk14
Brilliant_Rock
- Joined
- Jun 25, 2014
- Messages
- 1,061
Re: An interesting (to me) ASET comparison -- JA vs. DiamCal
Karl,
Would you mind explaining the above?
Obviously, the on/off description is an analogy (and an apt one!), but in actuality, the only way that motion can cause a virtual facet to appear to turn on and off is if some light-dark boundary is reflected in the facet and towards the eyes of the observer; with motion, the reflected image moves so that the observer sees first the dark region, then the boundary, then the light region (or vice versa). Because the relected rays can rotate faster than the angle of rotation of the diamond, it gives the illusion of turning the facets on and off.
Now, to my confusion: To get an non-crisp effect that looks like a "bulb on a dimmer where the knob is slowly turned", assuming my description above is sufficiently accurate for purposes of discussion, the only way this can happen is if one has a blurry boundary between the light and dark zones that traverse the virtual facet (to cause the on-off effect). Most likely the light-dark boundary is due to a pair of neighboring facets somehere else in the diamond. Thus, wouldn't it be true that the root cause of the "dimmer" effect that you described is ultimately a fuzzy boundary between two virtual facets? And if so, wouldn't we also see such fuzzy boundaries in the static image?
Karl_K|1409858867|3744864 said:Part of the issue is the crispness of a virtual facet needs motion to be seen.
A crisp virtual facet is like a light bulb on a switch on and of on and off.
A less crisp virtual facet is like the same light bulb on a dimmer where the knob is slowly turned.
Both can look the same in a static ASET image both virtual and real.
That is also incredibly complex to account for all the factors that affect it.
Karl,
Would you mind explaining the above?
Obviously, the on/off description is an analogy (and an apt one!), but in actuality, the only way that motion can cause a virtual facet to appear to turn on and off is if some light-dark boundary is reflected in the facet and towards the eyes of the observer; with motion, the reflected image moves so that the observer sees first the dark region, then the boundary, then the light region (or vice versa). Because the relected rays can rotate faster than the angle of rotation of the diamond, it gives the illusion of turning the facets on and off.
Now, to my confusion: To get an non-crisp effect that looks like a "bulb on a dimmer where the knob is slowly turned", assuming my description above is sufficiently accurate for purposes of discussion, the only way this can happen is if one has a blurry boundary between the light and dark zones that traverse the virtual facet (to cause the on-off effect). Most likely the light-dark boundary is due to a pair of neighboring facets somehere else in the diamond. Thus, wouldn't it be true that the root cause of the "dimmer" effect that you described is ultimately a fuzzy boundary between two virtual facets? And if so, wouldn't we also see such fuzzy boundaries in the static image?