Help planes clipping!

[josemendez]

Thank you so much for your reply!
Would these issues still persist if there are only a small amount of pages (e.g 10)?


Alternatively, if we were to pursue another form of simulation, such as your suggestion of procedural animation, would we be able to use the (hopefully) realistic motions created with Obi to serve as the animations and if so, how would we record/ convert the motion to animations?

Also, might you have any suggestions on how to overcome our current problems to arrive at realistic looking animations, instead of using real-time physics? 
Currently we are manipulating an object with ObiSphericalForceZone as well as the intensity of the force in order to "flip" the pages. Would we still be able to use this method, or do we need to shift to another method, such as moving the pages individually with inverse-kinematics?


again, thanks for helping us on our project.  

Hi,

Yes, even with 10 pages it would be overkill, even with less pages depending on the maximum tolerable page thickness. You can do the math yourself: Consider a 20x20 cm page, 1 mm thickness. That's 200 x 200 particles = 40000 particles per page. Now, consider 10 pages touching each other: That would generate 40000 x 9 = 360000 contacts per frame, which is an awful lot. All that just to have the book sitting there, no wind affecting the pages.

First, consider if you really need to perform realtime simulation for your purpose. Most likely you do not, and if you do, chances are you don't need to go all the way down to consider wind forces over each individual page.

You can either generate your animation in any animation package (Blender for instance), and export it as skeletal animation. Then you can control page flipping in realtime by scrubbing trough the animation using a script.