PointPositionPass trouble

[Worldmaker]

hi guys. im using corona alpha 1.00.02
3d max 2012. EyeonFusion 6.2 for compose.
I dont understand...
From 3d max i got CGeometry_WPP 32bit.. Loaded in fusion and got
a strange result... 3 volume masks))) instead of one. Can u expalain wats wrong? See pic below...

[racoonart]

It's broken. The wpp should have negative values, but corona currently outputs only absolute values =/

[Worldmaker]

so no way using corona WPP now?
may b any color correction or color normalization?

[racoonart]

A) You could move your scene so every coordinate is in positive space ;)
B) you could generate a new wpp in fusion using an imported camera and a zdepth (there is a node for that)

other than that, no there is no way. The data in the wpp is garbage.

[Worldmaker]

ok then.Will u fix this stuff in future?
A)))))))))))))
B)tooooo long(((

thx.

[racoonart]

I'm sure the corona devs will fix it eventually, the question is just "when".

A) is maybe not the best idea in huge scenes
B) is actually quite simple, your camera info is saved in the exr anyways. You just have to extract it and use it. You can do that with a few nodes and save it as a macro in fusion.

[Worldmaker]

many thx man...

[Ondra]

AFAIK I made this (using abs values) because 3dsmax was unable to handle negative values... I will give it another look.

[Worldmaker]

i was trying the same scene with Vray and mentalRay... everything ok. I got both negative values, then normalize
them from -1 to 1 in fusion and get nice result.

. I will give it another look. wat did u mean?

[rfletchr]

AFAIK I made this (using abs values) because 3dsmax was unable to handle negative values... I will give it another look.

Mental rays XYZ Generator works perfectly in max. Thats my "go to" for point position passes at the moment. of course the edging is different which causes its own issues. It would be great to have PPP working correctly from Corona. and Motion Vectors ;).. and all 3 types of normals

[rfletchr]

i was trying the same scene with Vray and mentalRay... everything ok. I got both negative values, then normalize
them from -1 to 1 in fusion and get nice result.

. I will give it another look. wat did u mean?

he means he'll(they'll?) take a look and see if they can make it work