That's really nice!
Can you share the algorithm you used to create that effect?!
Thanks
Here is the algorithm, it normalizes the quote of the nearby pixels with atan.
// put the ratio of the current pixel p1 with the next p2 in the variable diff
diff = p1/p2;
// raise this value with nSlopePower
diff = diff^nSlopePower
if(diff>1){
// make the diff value between 0 and 1
diff = (atan(diff)-pi/4)/(pi/4);
color = (1-diff)*color + diff*black
}
else{
diff=1/diff;
diff = (atan(diff)-pi/4)/(pi/4);
color = (1-diff)*color + diff*white;
}
However it is not suitable for zoom Movies, because if the joints should not be visible, the nSlopePower needs to grow exponetially as a zoom goes deeper, actually the same value as the magnification. This is since the slope is calculated from nearby pixels, the distance between nearby pixels is decreasing exponentially. It get ridiculus already at 1e5 eliminating all gradients on the shadows.
very, very cool!
I really look forward to the next version!
If it is OK for still images only, I can add it right away.
The rotating zoom movie I created by render frames for each Movie frames, and used my first movie assembler program, if you remember that one, from jpeg images...
April 26, 2012, 09:20:59 AM
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