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iest_rob 1,671 posts
Hey all. I've come across this problem quite a few times now. What I've created is a simple cube, selected one of the faces, extrude that face, scale the new face down a tad, position it where i want it to be, hit extrude face again to create a hole in the cube, and everytime a hit the second extrude, some of the faces turn black, and render wierd looking. Has anyone got any idea what's going on?
-Iest
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Todd 84 posts
Yup this happens in Maya when you don't have enough verticies on a face. The shading often turns to a weird looking gradient. Im not sure what base poly editing tools your using but try downloading MJ poly tools to edit polys.
Here's the link
Hope it helps!
Cheers,
~Todd.
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iest_rob 1,671 posts
Hey Todd, thanks a lot i'll have a quick play around with them, at the mo i just use Maya's own polytools. Thanks.
-Iest
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Myk 7 posts
It's a problem with normals, when you extrude maya has to create new normals for the created geometry and it makes them parallel to the existing ones. Unfortunately when you scale the extruded face down the smoothing between the normals is at completely the wrong setting, and maya smooths it incorrectly.
To fix it go to 'edit polygons' -> 'normals' -> 'soften/harden'* and set the angle to 45 degrees or below (basically the angle is how maya decides whether a face should be smoothed between faces).
*or something along those lines, might have got the exact sub-menus wrong
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iest_rob 1,671 posts
Hey Myk, that workes great thank you very much!
Excellent
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tide78 5 posts
yes, actually, it is best to be in the modelling module, and select your object then go to editPolygons->normals->Set to Face then do the soften harden thing.
