[prodviz]

Hi all,

how are the new projectors applied in maya and how do these differ from adding an HDR image as a MXI texture?

cheers,

Steve

[3dtrialpractice]

so far assigning a projection file to an emitter in maya seems broken.. it just makes the emitter black
assigning a hdr or mxi to a emitter traditionally only cast colors and treats it like normal emitter (so no sharp picture is projected)...
In theory/by their examples the projection file should project the image like a slideshow projector would
here is like to their examples.. watch their video too
http://www.maxwellrender.com/V3/feature/imageprojectors

(I was pretty excited about this new feature and bummed i can't get it to work)

[3dtrialpractice]

the only way i know now to get image projectors in maya is via MXS reference file.. so make the light mxs emmiter in studio save it as mxs file and reference it
you can see a mxs reference with image projector in this post http://www.maxwellrender.com/forum/view ... 01&t=41807

[raduc]

Projection textures should be working in the 3.0.8 Maya plugin. Can you tell me how to reproduce the issue you've been having, or a simple scene where they don't work so I can see what's wrong ?

[3dtrialpractice]

YES correction -projector files are working when applied to CUBE POLY OBJECT but they do not work (for me at least) applied to a poly plane (unless i make a plane in studio and export that plane geo as mxm ref file.. but just a mxm texture reference applied to a polyplane in maya does not work either.. it's gota have the polyplane in the mxm file reference too)

win64 maya2014ext mayaplug3.0.8 maxwell3.0.0.3

[Mihnea Balta]

Projectors aren't supposed to work with planes (they sometimes work, other times they render black). It's a bit weird, but that's how it is in the engine right now. You have to apply the emitter material to a small sphere. The image will be projected in the "up" direction of the sphere (the local Y axis). Someone on the main forum can explain this better than me, I just know the basics.

[3dtrialpractice]

applied to a cube or sphere in my maya scenes it projects in the -Y (negative/down not up -as I would expect)

ALSO the way it acts on cubes now to get image sharp decreasing scale to 0.1 or even 0.01 is great.. but then INCREASING the Y scale(independently) will extend the perimeter of light coverage.. so on my cube scale I have X & Z at 0.01 and Y at 0.2 to get a wide projection coverage whist retaining a sharp image (instead of translating the cube really far away would be the other option to get wider coverage..but if its moved too far it can go behind something else that will block the light so I've been playing with the y scale independently and seems to work great instead of translating the cube)

[prodviz]

Are you putting the image in the MXI/HDR Texture slot?

When I do this, FIRE preview blows out but the actual render is black.

[prodviz]

Ah, it's in the Projected Texture slot.

Works ok on a plane too.

cheers,

Steve