Motion Blur for Software Particles

[matty429]

I believe thats a feature not available untill 4.5 is released

[Deepray]

Think about the time your machine consume to render software particles without motion blur... now, imagine the time of this particles with motion blur... :surprised

[alexx]

if it is 100% vital to have motion blur on particles you can go for the following (time consuming) workaround:

render your particle sytem a second time with the particle instancer and use spheres for the instanced object which have to be bigger than your software particles you rendered. (they can be rendered with lowest AA settings)

render the particle instancer with motion blur and switch in the render globals the following on:
"keep motion vectors"
make the output format Maya IFF.
now you get the files including the motion vectors.

now you can take your softawre particles rendering and the instanced rendering with the motion vectors and combine them using the "blur2d.exe" tool from the maya /bin directory.

use the following (undocumented) switches:
-v and -c

-v defines the files containing the motion vectors
-c defines the files with the image info you want.

with that you can get your motion blur on the particles.

just a small hint:
ever had problems rendering fur with motion blur: this can be done like this as well

have fun

cheers

alexx

[alexx]

Originally posted by Deepray
Think about the time your machine consume to render software particles without motion blur... now, imagine the time of this particles with motion blur... :surprised

btw: if you tune your particle system i think it is quiete fast to render software particles..
you have to keep the number small.
but if you need high particle counts i would go for hardware rendering anyway..

cheers

alexx

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