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View Full Version : Normalize UV clusters???


mandel
09-20-2005, 04:16 PM
Does any one know of a script or a way to select all your uv clusters and normalize there scale. Some of the mapping tools, (flatten mappin) in the unwrap modifier, will normalize they're scale as it flatten maps it, but is there a way to do this to uv clusters that are already unrwraped?
Thanks,
David

prettyPixel
09-20-2005, 05:54 PM
Does any one know of a script or a way to select all your uv clusters and normalize there scale. Some of the mapping tools, (flatten mappin) in the unwrap modifier, will normalize they're scale as it flatten maps it, but is there a way to do this to uv clusters that are already unrwraped?
Thanks,
David

This script does what you request.

macroscript normalizeUVWMacro
category:"UVWtoolBox"
buttonText:"normalizeUVW"
toolTip:"normalizeUVW"
(
global normalizeUVWFloater
try (closerolloutfloater normalizeUVWFloater)catch()
rollout normalizeUVWRollout "normalize UVW 0.1a"
(
group "channel"
(
spinner channel_osd "channel:" range:[1,99,1] type:#integer scale:1 fieldwidth:28
)
group "normalize"
(
button normalizeUVW_osd "normalize UVW"
)
label lb0 "beware alpha version !!!"
label lb1 "by Olivier Vandecasteele"
label lb2 "email: gray@skynet.be"

fn getSizeUVW obj currentFaces objUnwrap objUnwrap2 =
(
TVmode=objUnwrap2.getTVSubObjectMode()
TVelementMode=objUnwrap2.getTVElementMode()
objUnwrap2.setTVSubObjectMode 1
objUnwrap2.setTVElementMode false

objUnwrapGetVertexPosition=objUnwrap.getVertexPosition
objUnwrapGetVertexIndexFromFace=objUnwrap.getVertexIndexFromFace
objUnwrapNumberPointsInFace=objUnwrap.numberPointsInFace
coord=objUnwrapGetVertexPosition 0f (objUnwrapGetVertexIndexFromFace currentFaces[1] 1)
minU=coord.x ; minV=coord.y ; minW=coord.z
maxU=coord.x ; maxV=coord.y ; maxW=coord.z
for f in currentFaces do
(
nVerts=objUnwrapNumberPointsInFace f
for v=1 to nVerts do
(
coord=objUnwrapGetVertexPosition 0f (objUnwrapGetVertexIndexFromFace f v)
if coord.x<minU do minU=coord.x
if coord.y<minV do minV=coord.y
if coord.z<minW do minW=coord.z
if coord.x>maxU do maxU=coord.x
if coord.y>maxV do maxV=coord.y
if coord.z>maxW do maxW=coord.z
)--for v
)--for f
objUnwrap2.setTVSubObjectMode TVmode
objUnwrap2.setTVElementMode TVelementMode
-- min,max,size,center
#([minU,minV,minW],[maxU,maxV,maxW],[maxU-minU,maxV-minV,maxW-minW],[(minU+((maxU-minU)/2.0)),(minV+((maxV-minV)/2.0)),(minW+((maxW-minW)/2.0))])
)--fn

fn normalizeCoord coord size =
(
sx=if size[3].x==0 then 1.0 else (1.0/size[3].x)
sy=if size[3].y==0 then 1.0 else (1.0/size[3].y)
sz=if size[3].z==0 then 1.0 else (1.0/size[3].z)
coord=coord*(transMatrix [-size[1].x,-size[1].y,-size[1].z])*(scaleMatrix [sx,sy,sz])
)

fn normalizeUVW obj =
(
addModifier obj (Unwrap_UVW ())
objUnwrap=obj.modifiers[1].unwrap
objUnwrap2=obj.modifiers[1].unwrap2
objUnwrap.setMapChannel channel_osd.value
objUnwrap.edit()
objUnwrap.displayMap false
objUnwrap2.setGridVisible false
objUnwrap2.setTVSubObjectMode 3
objUnwrap2.setTVElementMode true
objUnwrap2.selectFaces #{1..obj.numfaces}
facesArray=(objUnwrap2.getSelectedFaces()) as array
size=getSizeUVW obj facesArray objUnwrap objUnwrap2
objUnwrap2.setTVSubObjectMode 1
objUnwrap2.setTVElementMode false
nVerts=objUnwrap.NumberVertices()
for v=1 to nVerts do
( objUnwrap.setVertexPosition 0f v (normalizeCoord (objUnwrap.getVertexPosition 0f v) size) )
)

on normalizeUVW_osd pressed do
(
sel=getCurrentSelection()
max modify mode
for obj in sel do
(
select obj
normalizeUVW obj
)
max create mode
max views redraw
)--on

)--rollout
normalizeUVWFloater = newRolloutFloater "normalizeUVW" 162 144
addRollout normalizeUVWRollout normalizeUVWFloater rolledUp:false
)--macro

Installation of the macroscript:
1. Click the MAXScript item in the Main Menu, select Run Script...
2. Locate and select the script and press Open
3. Go to Customize > Customize User Interface and select the desired Tab (Keyboard, Toolbars, Quad or menu)
4. Locate the category 'UVWtoolBox' under group 'Main UI'
5. Search in the category for the name 'normalizeUVW'
6. Drag the script to the toolbar, Menu, QuadMenu or assign to a Shortcut


Beware. I wrote it with the code of my other scripts without optimisation and without verifications of yours objects. If the objects cannot receive UV the script will not work.

I hope this helps.

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