scale script

By animato727 · 2008-02-20

Description

I am looking for a script that will scale an objects size based on its distance from a camera. One key thing it needs to do is only scale that said object after it enters a certain perimeter around the object being scaled. Also the camera must be able to control the spheres scale no matter what direction it is moving towards the sphere. For example:

sphere and camera are separated by 150 units.
sphere size is arbitrary but has a perimeter set at 100 units from pivot.
camera passes through 100 unit perimeter.
sphere will scale down relative to this distance that the camera moves. If the camera moves 50% into the perimeter the sphere will scale to 50%.
camera leaves the perimeter.
sphere will scale back up to its original size.

I am pretty lost on how to do this myself. I tried to use reaction manager but it did not work out. thanks.

Comments (3)

stenionet · 2010-10-12

Insanto
I can not make your script work.
Can you give information how to use it?

Thanks.

Graph · 2010-09-25

are you experienced with maxscript? if so ..

have phun:


(

   if IN_DistDuff != undefined do unRegisterTimeCallback IN_DistDuff.zDepthPreview


         struct distStuff
         (
            var = 0
            ,

            fn getFurthestBBPoint o = --get furthest BBcorner-position of an obj in relation to viewport
            (
               local ma = o.max ; local mi = o.min
               local arr = #([ma.x,ma.y,ma.z],[ma.x,mi.y,ma.z],[mi.x,mi.y,ma.z],[mi.x,ma.y,ma.z],[ma.x,ma.y,mi.z],[ma.x,mi.y,mi.z],[mi.x,mi.y,mi.z],[mi.x,ma.y,mi.z])
               local maxDist = -99999999 ; local maxP = [0,0,0]
               for p in arr do(if(dist=distance(inverse(viewport.getTM())).pos p)>maxDist do(maxDist=dist;maxP=p))
               return maxP
            )--END getFurthestBBPoint FN

            ,

            fn getFurthestPos = --get furthest position of visible geometry in relation to viewwport
            (
               local objArr = for o in geometry where not (o.isHidden) collect o
               local arr = for o in objArr collect (getFurthestBBPoint o)
               local maxDist = -99999999 ; local maxP = [0,0,0]
               for p in arr do(if(dist=distance(inverse(viewport.getTM())).pos p)>maxDist do(maxDist=dist;maxP=p))
               return maxP
            )--END getFurthestPos FN

            ,

            fn zDepthPreview = --make zDepthPreview based on objDistance/MaxDist  --build in isInView check to objArr collection
            (
               local furthestPosFromView = getFurthestPos()

               if furthestPosFromView != [0,0,0] then
               (
                  local maxDist = distance(inverse(viewport.getTM())).pos furthestPosFromView

                  local objArr = for o in geometry where not (o.isHidden) collect o

                  for obj in objArr do
                  (
                     local centerDist = distance(inverse(viewport.getTM())).pos obj.center

                     local val = (abs(centerDist/maxDist-1)) * 255
                     obj.wireColor = color val val val
                  )
               )
               else --handling for non perp views
               (

               )
               return OK
            )--END zDepthPreview FN

            ,

            fn autoSmoothByDist = --set AutoSmooth Itterations based on objDistance/MaxDist
            (



















            )--END autoSmoothByDist FN

         )
         global IN_DistDuff = distStuff var:1

         registerTimeCallback IN_DistDuff.zDepthPreview


)--END local scope

stenionet · 2010-09-25

I am looking for the same solution. For months I am searching and cannot find a way to do this.