So you want to fly a flag for one of your POV-Ray scenes and you think Poser
is the right place to just do that. You are correct.
However, like I discovered soon enough, there is a glitch that I took some
time to solve properly, there being no tutorial available for this
particular case and - surprisingly - no help available at the official Poser
So, this is what happened and how I solved the glitch.
1) I made a flag (in Silo) with a couple of straps to hold it to a flagpole.
Made a flagpole. Exported as .obj and imported into Poser.
2) I set up a simulation in the Cloth Room, taking care in particular to
define the straps as Constrained Group, as they should stay in place around
3) I ran the simulation and discovered to my amazement that the flag slipped
down the flagpole, the straps flying lose at the end. In my believe (and
experience with clothes) this was not how a Constrained Group should behave.
I ran the Poser curtains tutorial and could not find a clue about what I was
doing wrong. So I went to the Poser7 Forum and stated my question, but no
answer or solution was ever provided. Visibly, nobody had any idea (or
nobody cared enough...).
4) I examined more in detail the curtains from the Poser tutorial and
discovered at last one crucial difference: the curtain straps were attached
at both ends to the curtains. In my flag this was not the case, having
always assumed that one should avoid modelling objets where some edges could
join more than two surfaces. So, this was the reason why my straps came
loose in the simulation.
5) I corrected the model and ran the simulation again. This time, the straps
stayed in place but the flag still slipped down the flagpole!
6) I put a stop on the flagpole (a small cylinder perpendicular to the
flagpole) just below the flag and ran the simulation again. Lo! Everything
was allright and the flag was flying very convincingly.
7) I exported one of the frames to POV-Ray and commented out the small stop.
Perfect. The result can be seen in my latest contribution to the TC-RTC.
Post a reply to this message