hi again!
this is urgent so pleeease help!
job to do is: make an a4 (magazine) which pages flip open. i dont need to make the hand that grabbs the pages.
the flip should start at the top right corner of the page, and go down left before the whole page flips to the left side of the magazine. in other words: like if you grab a page on the top right corner and flip it to the left side.
i could do this in cinema4d with bones. but i got to do it in xsi. how would u do this?
this should be no problem for an advanced user, i think. please give a noob a link.
thx alot, cya!
k, i played around for some time now..
the major problem seems to be the bottom end of the page (a4 size grid in xz-dim/topview), which is not moving properly, and the main chain that bends in the wrong direction.
i made one long bone on the "left" going straight along the z axis. this bone should tell the grid that its z axis doesnt deform. then i made a second seperate bone chain of 10 smaller bones in z direction (orthogonal to the other single bone) on the upper edges of the grid. this chain should make the page flip.
next i wanted to make the z rotation of the first bone of the chain (beginninng in the upper left corner,at the end of the long-z-bone) controlling the x rotation of the single bone. so if the page flips, the left edges (of the a4-page) remain their position, but also rotate. but i didn't had the time to play around with it any longer and now im at work and cant continue working on this scene.
the deformation problem is caused by a wrong weight map, i think. the chain on the top edge of the page dont effect the whole page/grid. also their weight is mixed with the weight caused by the single bone that "fixes" the page in z direction. which works pretty well. maybe the chain is not well positioned and need to be translated a bit down to the middle of the page...
if ure now thinking: wtf does this guy want to tell me? then check back here a few hours later. i'll post a screenshot. thx!
another problem i found is that the 10-bone chain tends to bend in the wrong direction. when im moving the effector a bit up and towards the root of the chain it should be deformed counter-clockwise (like if u grab a page on the top right corner and flip it to the left), but isn't. so i drew a new chain in "front" viewport with the first bone slightly pointing "down" to give it a more natural angle 'cause bones in a straight line dont work well. i also set max and min angles. but after keyframing the skelettons rotations and moving the effector again, its all the same. the chain still bends clockwise and tend to slightly sag in the middle.
maybe when mirroring the chain (x axis) the bending problem could be solved, but this can't be the final solution.
i know, a picture tells more than thousand words, so when im back home i'll post some screenshots to describe this problem in a clearer way...
any information regarding this problem would be very useful!
thx for ure interest and patience! cya!