[Closed] Bobo's "Particle Motion Transfer to Scene Objects" Mental ray
This is directed more at Bobo, but if anyone else has a solution i’d be grateful.
I’ve been utilising Bobo’s technique of particle transforms to objects to do a basic volume particle render in Max 9. Easy enough; single frames render fine, and scanline will render the whole thing, but Mental ray refuses to render the particles as a sequence. It will render a single frame fine, but any sequence comes up blank unless there are gizmos on screen already.
My basic assumption is that the gizmo replacement is not occuring when I do a sequential render in Max 9, but why? Is this a bug or something that has always occured with MR?
Thought I’d DL the tute scene to check it out but the link is broken.
It is completely possible that since the gizmos are animated indirectly (by PFlow), the mental ray bridge considers them non-animated and does not update their data after the first frame?
Does it still work with Scanline?
A possible hack around this would be to set keyframes on frist and last frame in the position track of all gizmos to tell the renderer they are going to move. Then PFlow would take over and do its job… Haven’t tested yet, will have to go home first…
Works fine in scanline, but i’m liking your idea of keying the motion. I’ll give it a go.
Okay, tried the keying idea, and it works. ALMOST. The gizmos now render, but they are seriously screwed up. Every frame has a different skew or scale. Obviously, the keys are conflicting with the code somehow.
Try this:
*Create a simple Box primitive at [0,0,0]
*Right-click>Properties>Renderable OFF
*On frame 0, right-click the time slider, uncheck Rotate and Scale and set a key just for the Position
*On the last frame, right-click the time slider, set a key for the Position with the same value.
*LINK all gizmos to this box.
*Render in mental ray
In my tests, it looks like the gizmos are ok and they render in the sequence.
Perfect.
Thank you very much Bobo. It’s a shame you have to trick MR into thinking they’re keyed, but at least it works!