topic Re: Converting Autodesk materials in 3ds Max Programming Forum

Converting Autodesk materials

hanselmoniz — Wed, 22 May 2013 09:15:50 GMT

Please could you help out to change autodesk materials to vray materials. So far I've got. I would however have to grab the properties of individual autodesk materials and set them to vray... i do not know if I'm going in the right direction as i am new to maxscript

for varMat in scenematerials do
( if classof varMat == Autodesk_Material then
if varMat = Autodesk_ceramic then
(varMat = vraymtl ())
if varMat = Autodesk_concrete then
(varMat = vraymtl ())
if varMat = Autodesk_generic then
(varMat = vraymtl ())
if varMat = Autodesk_glazing then
(varMat = vraymtl ())
if varMat = Autodesk_wood then
(varMat = vraymtl ())
if varMat = Autodesk_masonry then
(varMat = vraymtl ())
if varMat = Autodesk_metal then
(varMat = vraymtl ())
if varMat = Autodesk_metallic_paint then
(varMat = vraymtl ())
if varMat = Autodesk_mirror then
(varMat = vraymtl ())
if varMat = Autodesk_plastic then
(varMat = vraymtl ())
if varMat = Autodesk_solid_glass then
(varMat = vraymtl ())
if varMat = Autodesk_stone then
(varMat = vraymtl ())
if varMat = Autodesk_wall_paint then
(varMat = vraymtl ())
if varMat = Autodesk_water then
( varMat = vraymtl ())
 
)

Re: Converting Autodesk materials

Swordslayer — Wed, 22 May 2013 10:42:12 GMT

There is already http://www.scriptspot.com/3ds-max/scripts/multyconvertor which should handle that. If you want to parse the material manually, note that each autodesk_material allows you to get a generic material using .ConvertToGeneric. Btw. for finding one possible value out of a list, case expression is better than if expression - it would also prevent you from the classic mistake of using assigment to a variable instead (single equal sign) of checking for equality (double equal sign).

Re: Converting Autodesk materials

hanselmoniz — Wed, 22 May 2013 11:22:20 GMT

Thanks for your help. I tried to use Multyconverter but it just converts autodesk materials to vray materials and does not take the parameters... i think there is some file you have to edit in order to get the script working well...but im a noob at that...

Re: Converting Autodesk materials

hanselmoniz — Wed, 22 May 2013 12:04:06 GMT

I'm trying to access the code ConvertToGeneric through script but i do not know how to do it... can you post a code to convert all autodesk materials to autodesk generic materials.. forgive my ignorance

Re: Converting Autodesk materials

Steve_Curley — Wed, 22 May 2013 12:23:21 GMT

Hint. Quote tags are for quoting what others have written, not for posting your own comments.

Re: Converting Autodesk materials

hanselmoniz — Wed, 22 May 2013 12:29:39 GMT

for Autodeskmat in scenematerials do
( if classof  Autodeskmat == Autodesk_Material then
Autogeneric =  Autodeskmat.ConvertToGeneric
Autogeneric.name =  Autodeskmat.name
-- Replace the original material with the new Autodesk material
replaceInstances Autodeskmat Autogeneric)

Re: Converting Autodesk materials

hanselmoniz — Wed, 22 May 2013 12:45:16 GMT

I have to exclude autodesk_generic materials though. I guess it is best done by hasproperty = convertToGeneric

Re: Converting Autodesk materials

hanselmoniz — Wed, 22 May 2013 12:54:43 GMT

i do not know why this does not work.. Please can you help

for Autodeskmat in scenematerials do
( if classof  Autodeskmat == Autodesk_Material then
 (if hasProperty Autodeskmat "ConvertToGeneric" then
 () else
 Autogeneric =  Autodeskmat.ConvertToGeneric
Autogeneric.name =  Autodeskmat.name
-- Replace the original material with the new Autodesk material
replaceInstances Autodeskmat Autogeneric)
)

Re: Converting Autodesk materials

Swordslayer — Wed, 22 May 2013 13:18:23 GMT

You probably wanted to use isProperty here but eitherway both generic autodesk material and all the different autodesk material types have the ConvertToGeneric property - and it shouldn't be a problem, if you only replace a given set of materials. Skip the check - and better don't work on the live sceneMaterials collection, collect the materials to an array (or use something like sceneMats = join #() sceneMaterials).

Re: Converting Autodesk materials

hanselmoniz — Wed, 22 May 2013 15:39:16 GMT

so this should work fine isnt it. But when i run it on autodesk generic and other autodesk materials it does not convert other autodesk materials

for Autodeskmat in scenematerials do
( if classof  Autodeskmat == Autodesk_Material then
Autogeneric =  Autodeskmat.ConvertToGeneric
Autogeneric.name =  Autodeskmat.name
-- Replace the original material with the new Autodesk material
replaceInstances Autodeskmat Autogeneric)

Re: Converting Autodesk materials

Swordslayer — Wed, 22 May 2013 16:07:39 GMT

Only if the class of all sceneMaterials is Autodesk_Material, otherwise it won't work - your Autogeneric variable would be undefined (just put everything after 'then' in a pair of braces to correct it).

Re: Converting Autodesk materials

hanselmoniz — Thu, 23 May 2013 04:50:42 GMT

Actually this code runs fine the first time I open max but if I have to run it again. It does not do anything. Sorry I am a total noob at this..

for Autodeskmat in scenematerials do
 ( if classof  Autodeskmat == Autodesk_Material then
 (Autogeneric =  Autodeskmat.ConvertToGeneric
 Autogeneric.name =  Autodeskmat.name
-- Replace the original material with the new Autodesk material
 replaceInstances Autodeskmat Autogeneric)
)

Re: Converting Autodesk materials

Swordslayer — Thu, 23 May 2013 08:26:08 GMT

The only thing there that might be causing trouble is that scenematerials collection does not update automatically, so for example after importing some geometry with materials assigned it will be still empty, until the scene is saved (autosave will triger the update too). Other than that there should be nothing that could prevent it from working as expected. Of course, in case of multi/sub materials or other nested materials, it won't work either - if that's your case don't use sceneMaterials, assign the result of getClassInstances Autodesk_material to some variable instead and iterate those materials.

Re: Converting Autodesk materials

hanselmoniz — Mon, 27 May 2013 07:04:38 GMT

I don't know why this does not work... i have got all the autodesk materials to an array "autodsk" I do not know how to iterate through that array.

autodsk = getClassInstances Autodesk_material
for i in autodsk do
( Autogeneric =  autodsk.ConvertToGeneric 
Autogeneric.name =  autodsk.name
 replaceInstances autodsk Autogeneric)

Re: Converting Autodesk materials

hanselmoniz — Mon, 27 May 2013 07:20:56 GMT

Just tried this... voila it worked...

autodsk = getClassInstances Autodesk_material
for i = 1 to autodsk.count do
( Autogeneric =  autodsk.ConvertToGeneric
Autogeneric.name =  autodsk.name
 replaceInstances autodsk Autogeneric)

Re: Converting Autodesk materials

Swordslayer — Mon, 27 May 2013 08:22:24 GMT

When you are iterating this way, i.e. for item in collection, access that item then, for example for mat in autodsk do autogeneric = mat.ConvertToGeneric ... you get the idea.

Re: Converting Autodesk materials

Anonymous — Mon, 27 May 2013 08:48:59 GMT

hi

try this...

you must find the right Definition. This is my trick for example: mtl_Definition= findString mtl.DefinitionID "Concrete"

But you can´t easy convert the Maps and Parameters. For this must you know, how a MI-File works and look at the Maps and Values in the MI-File. Second must you hack the Spider_Shader Values from Autodesk. The infos find you in the METASL-Codes. That is not so easy.


 fn convert_Mtl_to_mrArchitectural mtl=
 ( 
 -- if not classof mtl == Autodesk_Material then 
 newmtl = mtl 
 
 case classof mtl of
 (
 Autodesk_Material:
 ( if( not allowMatAuto ) then
 (
 return()
 )
 
 nextmat= on
 
 if nextmat then (
 mtl_Definition= findString mtl.DefinitionID "Ceramic"
 if mtl_Definition != undefined then 
 ( DefinitionID="Ceramic"
   nextmat=off 
 ) else nextmat=on
 )
 
 if nextmat then (
 mtl_Definition= findString mtl.DefinitionID "Concrete"
 if mtl_Definition != undefined then 
 ( DefinitionID="Concrete"
   nextmat=off 
 ) else nextmat=on
 )
 
 if nextmat then (
 mtl_Definition= findString mtl.DefinitionID "Gen"
 if mtl_Definition != undefined then 
 ( DefinitionID="Generic"
   nextmat=off 
 ) else nextmat=on
 )

Re: Converting Autodesk materials

hanselmoniz — Mon, 27 May 2013 10:38:04 GMT

Correct me if I'm wrong but does this script check what type of Autodesk Material it is?....Then i will have to correspond material properties to vray material depending on the type of Autodesk material:)... I was trying to use Multyconvertor from scriptspot but Im unable to find the properties of autodesk materials other than Generic

Re: Converting Autodesk materials

Anonymous — Mon, 27 May 2013 11:30:56 GMT

hi

The Parameters and Maps, can you only convert, have knowledge about MI-File. The Multyconverter can this not.

The code is only a part of a function.

mtl = is your Autodesk Material

the "case of" routine looks wish of Autodesk Material it is "Metal, Generic, Conrete ...."

Max-Script Documentation:
<Autodesk_Material>.DefinitionID String default: "Generic" -- string;

Re: Converting Autodesk materials

hanselmoniz — Tue, 28 May 2013 10:20:51 GMT

Will this do...

fn convert_Mtl_to_mrArchitectural mtl=
  ( 
   if not classof mtl == Autodesk_Material then 
  newmtl = mtl 
  
  case classof mtl of
  (
  Autodesk_Material:
  ( if( not allowMatAuto ) then
  (
  return()
  )
  
  nextmat= on
  
  if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Ceramic"
  if mtl_Definition != undefined then 
  ( DefinitionID="Ceramic"
    nextmat=off 
  ) else nextmat=on
  )
  
  if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Concrete"
  if mtl_Definition != undefined then 
  ( DefinitionID="Concrete"
    nextmat=off 
  ) else nextmat=on
  )
  
  if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Generic"
  if mtl_Definition != undefined then 
  ( DefinitionID="Generic"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Glazing"
  if mtl_Definition != undefined then 
  ( DefinitionID="Glazing"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Hardwood"
  if mtl_Definition != undefined then 
  ( DefinitionID="Hardwood"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "masonry_CMU"
  if mtl_Definition != undefined then 
  ( DefinitionID="masonry_CMU"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Metal"
  if mtl_Definition != undefined then 
  ( DefinitionID="Metal"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "MetallicPaint"
  if mtl_Definition != undefined then 
  ( DefinitionID="MetallicPaint"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Mirror"
  if mtl_Definition != undefined then 
  ( DefinitionID="Mirror"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Plastic_Vinyl"
  if mtl_Definition != undefined then 
  ( DefinitionID="Plastic_Vinyl"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Solid_glass"
  if mtl_Definition != undefined then 
  ( DefinitionID="Solid_glass"
    nextmat=off 
  ) else nextmat=on
  )
    if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Stone"
  if mtl_Definition != undefined then 
  ( DefinitionID="Stone"
    nextmat=off 
  ) else nextmat=on
  )
      if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "Wall_paint"
  if mtl_Definition != undefined then 
  ( DefinitionID="Wall_paint"
    nextmat=off 
  ) else nextmat=on
  )
      if nextmat then (
  mtl_Definition= findString mtl.DefinitionID "water"
  if mtl_Definition != undefined then 
  ( DefinitionID="water"
    nextmat=off 
  ) else nextmat=on
  )
  )
  )
  )
  ---CERAMIC MATERIAL
if DefinitionID = "Ceramic" then
( --Autodesk Ceramic Material properties
--ceramic
newmtl.Diffuse=mtl.Ceramic_Color
mtl.Ceramic_Color_Option = 1
newmtl.texmap_diffuse=mtl.Ceramic_Color_Map
 newmtl = mtl ())