I created new flags, using the default renderer in Blender and it is much easier to animate, whereas in Maya somewhere in my working progress, the flags dynamics disappeared especially when I scaled the polygons. I tried Modo but, it’s more complicated and as usual, crashes frequently–but I love Modo’s renderer anyway.
Here’s an image test from Blender before I animate.
A sample animation
Rendered in Blender internal
Rendered 100 samples in Cycles
Rendered on V-ray with compositing