I was just wondering why my render only takes 15 minutes in MPlay, but when i go to actually render via OUT>Mantra>Render Button it takes an hour and a half. Would it have anything to do with the output file type, like if im doing EXR versus JPEG? Also my explosion is cached too which should help alot, so i thought…

Mplay or the Render View?

Mplay goes fast … and then when i actually render render by going to the mantra node and hit render

Sounds strange, rendering to Mplay would use the same settings as the render nodes.

Just one more check, how are you launching Mplay?

I just go to the bottom left hand corner and click the button

Are you sure used same Mantra Node !?

Are you sure both one use same Render Engine !? (Micropoly , Raytracing , …)

Maybe M_Play use ipr_mantra and other use Mantra1 .

If you can't solve your ptoblem ,Please upload to us a simple project about that :?