Technical Problems in maya Mapping PDF

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Technical Problems in maya Mapping - how to find most problems in maya and how to fix them...

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TECHNICAL MODELLING PROBLEMS IN MAYA Make sure Windows > Settings/Preferences > Preferences > Selection is set to select Polygons by CENTRE. These are 9 major problems: PROBLEM undeleted history faces that need splitting stray vert on edge, creating 5+-sided faces duplicate faces sharing the same verts (sitting on top of each other)

CLEAN UP TOOL NO YES faces more than 4 sides YES faces more than 4 sides YES lamina ALSO non-manifold

BORDER EDGE TOOL NO NO NO

FIX Edit > Delete By Type > History Split face into 4 or 3 sided faces Delete stray vert

CREATES NEW PROBLEM NO LEAVES HISTORY LEAVES HISTORY

NO

Delete extra face(s)

LEAVES HISTORY

Delete extra face (may need to rebuild if it was a necessary face)

LEAVES HISTORY

Delete faces sitting on edge

LEAVES UNMERGED VERTS; LEAVES HISTORY

edges shared by 3 faces

YES non-manifold

NO (can see better with x-ray shading)

faces sitting on an edge

YES edges with zero length

NO

reversed normals

YES non-manifold

YES

unmerged verts (invisible hole)

NO

YES

hole in model

NO

YES

Reverse normal of affected face, or Conform whole object Merge verts Fill hole by extruding edge, connect verts to corners, merge verts, or Mesh > Fill Hole

LEAVES HISTORY LEAVES HISTORY LEAVES HISTORY; If you extrude a new face, will leave unmerged verts

Searching for problems by tool: TOOL clean-up tool > faces more than 4 sides

PROBLEM faces that need splitting stray vert on edge, creating 5+-sided faces

FIX Split face into 4 or 3 sided faces Delete stray vert

CREATES NEW PROBLEM LEAVES HISTORY LEAVES HISTORY

Reverse normal of affected face, or Conform whole object

LEAVES HISTORY

Delete extra face (may need to rebuild if it was a necessary face)

LEAVES HISTORY

duplicate faces sharing the same verts (sitting on top of each other) duplicate faces sharing the same verts (sitting on top of each other)

OTHER TOOL NO NO will also show border edge around reversed faces *also Display Polygons > Face Normals will show direction of normals NO (can see better with x-ray shading) is also lamina (fixing lamina will fix non-manifolds) is also non-manifold (fixing lamina will fix non-manifolds)

Delete extra face(s)

LEAVES HISTORY

Delete extra face(s)

LEAVES HISTORY

faces sitting on an edge

NO

Delete faces sitting on edge

LEAVES UNMERGED VERTS; LEAVES HISTORY

reversed normals

will also show as non-manifold

unmerged verts (invisible hole)

NO

hole in model

NO

Fill hole by extruding edge, connect verts to corners, merge verts, or Mesh > Fill Hole

undeleted history

NO

Edit > Delete By Type > History

reversed normals clean-up tool > non-manifold edges shared by 3 faces

clean-up tool > lamina clean-up tool > edges with zero length

border edge tool

channel box

To show Dot on Faces: Windows > Settings-Preferences > Preferences On Selection, turn Select faces with Center ON To show Polycount: Display > Heads Up Display > Polycount To get Clean Up tool: Mesh > CleanUp… Set Operation to Select matching Polygons (never Cleanup matching Polygons) To get Border Edge tool: Display > Polygons (tear off menu) Hit Border Edges On and Off To show Face Normals: Display > Polygons (tear off menu) Hot Face Normals On and Off

Reverse normal of affected face, or Conform whole object Merge verts

LEAVES HISTORY LEAVES HISTORY LEAVES HISTORY; If you extrude a new face, will leave unmerged verts NO...