multiple bitmaps and UVWRandomizer

V-Ray V-Ray for 3ds Max General
1

Is here any way to automatically load large number of bitmaps as VRayBitmap, connect them to VRayMutliSubTex and use as a mapping source the same UVWRandomizer for all bitmaps?
Or maybe there is some way to use MutliTexture and VRayUVWRandomizer?

2

You can do it through MaxScript. Here is a simple example script which creates and applies (to the selected object) a VRayMtl in which a VRayMultiSubTex is plugged; the VRayMultiSubTex contains three maps with a shared VRayUVWRandomizer node:


bm=vraybitmap()
bm.HDRIMapName="<map_location>"
bm2=vraybitmap()
bm.HDRIMapName="<map_location>"
bm3=vraybitmap()
bm.HDRIMapName="<map_location>"
uvw=vrayuvwrandomizer()
bm.mapSource=uvw
bm2.mapSource=uvw
bm3.mapSource=uvw
mst=vraymultisubtex()
mst.texmap_1=bm
mst.texmap_2=bm2
mst.texmap_3=bm3
mtl=vraymtl()
mtl.texmap_diffuse=mst
$.Material=mtl
3

That’s cool. Is there not a way to make this available in the map itself?

4

OK - this is my try.
Script displays file select dialog and connect choosed files as VRayBitmap to SELECTED VRayMultiSubTex

fn load_images = (
viewNode = sme.GetView (sme.activeView)
view = trackViewNodes[#sme][(viewNode.name)]
--Get Index of Active View
actIndex = sme.activeview
--Get the actual SME View
theView = sme.getview actIndex
if ((theView.GetSelectedNodes()).count == 0 ) then return messageBox "Select VRayMultiSubTex in Slate Material Editor"
selected = (theView.GetSelectedNodes())[1]
selectedRef = selected.reference
if ((classof selectedRef) != VRayMultiSubTex) then return messageBox "Select VRayMultiSubTex in Slate Material Editor"

--http://www.scriptspot.com/bobo/mxs9/dotNet/OpenFileDialog.html
theDialog = dotNetObject "System.Windows.Forms.OpenFileDialog" --create a OpenFileDialog
theDialog.title = "PLEASE Select One Or More Files" --set the title
theDialog.Multiselect = true --allow multiple files to be selected
theDialog.Filter = "Image Files|*.png;*.bmp;*.tga;*.hdr;*.sgi;*.rgb;*.rgba;* .jpg;*.jpeg;*.jpe;*.exr;*.pic;*.tif;*.tiff;*.psd;* .ifl|All Files (*.*)|*.*" --specify the filter
theDialog.FilterIndex = 1 --set the filter drop-down list to All Files
result = theDialog.showDialog() --display the dialog, get result into variable
result.ToString() --when closed, convert the result to string
result.Equals result.OK --returns TRUE if OK was pressed, FALSE otherwise
result.Equals result.Cancel --returns TRUE if Cancel was pressed, FALSE otherwise
theFilenames = theDialog.fileNames --the selected filenames will be returned as an array

if (result.Equals result.OK) then (
firstFreeSlot = selectedRef.texmap_num + 1

for x=1 to selectedRef.texmap_num do (
if ( selectedRef.texmap[x] == undefined ) then ( firstFreeSlot = x; exit )
)
if (selectedRef.texmap_num - firstFreeSlot + 1 < theFilenames.count) then selectedRef.addSubTex ( theFilenames.count - (selectedRef.texmap_num - firstFreeSlot + 1) )

pos = selected.position
pos[1] -= 150
uvw=vrayuvwrandomizer()
theView.createnode uvw &pos
pos[1] += 100

for i = 1 to theFilenames.count do(
-- pos[2] -= 25
bm=vraybitmap()
bm.mapSource=uvw
bm.HDRIMapName = theFilenames[i]
selectedRef.texmap[i+firstFreeSlot-1] = bm
theView.createnode bm &pos
)

)
)

load_images()
5

Hi there, I found this Script very useful, I even improved a little bit adding Triplanar Texture, but now that MultisubTex has the BatchLoad its not quite perfect there are somethings that need to improve.
Is there a possible way to Add Randomizer & Triplanar directly in the MultisubTex?
Or maibe if you could give a tip in order to do my own script by selecting the desired maps that I want to Add those Maps?

6

A similar question was asked in this thread. We’ve logged an issue for improvement.

Dimitar

7

Thanks Dimitar, thats my post, I also updated with an script that someone shared to me in a Facebook group