Scripting : how to move samples from a polygon selection ? 2005-05-08 - By Guillaume Laforge
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Hi,
I'm writing a little script to create a matte pass based on clusters.
Here is a first try :
/-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----
/*Cluster_matte_01.js
Guillaume Laforge 05-2005
Put the selected object with a cluster named "matte" in a partition
with a material. It render the "matte" cluster in white and all the
other poly in black
*/
var oSel = Selection.Item(0)
var oGeo = oSel.ActivePrimitive.Geometry;
var oClusters = oGeo.clusters;
// Check if object has clusters named "matte"
if(oClusters.count!=0)
{
for(var i=0;i<oClusters.count;i++)
{
if (oClusters(i).Name == "matte" )
{
SelectObj ( oClusters );
//create the cluster matte UV proj.
CreateProjection(oSel+".polymsh.cls.matte", null,
siTxtDefaultPlanarXY, "", "Texture_Proj_Matte", null, null, null);
//Create the cluster matte partition
SelectObj (oSel )
CreatePartition(null,"cluster_matte", null, null);
//create the cluster matte material
SICreateMaterial(null,"cluster_matte","Sources.Materials.DefaultLib",
"", null, null);
CopyPaste(null, "Shaders\\Texture\\Image.Preset",
"TransientObjectContainer", null);
SIConnectShaderToCnxPoint("TransientObjectContainer.Image",
"Sources.Materials.DefaultLib.cluster_matte.surface", false);
CopyPaste(null, "Shaders\\Texture\\Share\\Color_share.Preset",
"TransientObjectContainer", null);
SIConnectShaderToCnxPoint("TransientObjectContainer.Color_share",
"Sources.Materials.DefaultLib.cluster_matte.Image.tex", false);
//matte color
SetValue("Sources.Materials.DefaultLib.cluster_matte.Image.Color_share.input
.red",
1, null);
SetValue("Sources.Materials.DefaultLib.cluster_matte.Image.Color_share.input
.green",
1, null);
SetValue("Sources.Materials.DefaultLib.cluster_matte.Image.Color_share.input
.blue",
1, null);
SetValue("Sources.Materials.DefaultLib.cluster_matte.Image.Color_share.input
.alpha",
1, null);
RemoveShaderFromCnxPoint("Sources.Materials.DefaultLib.cluster_matte.Phong",
"Sources.Materials.DefaultLib.cluster_matte.shadow", false);
RemoveShaderFromCnxPoint("Sources.Materials.DefaultLib.cluster_matte.Phong",
"Sources.Materials.DefaultLib.cluster_matte.Photon", false);
}
}
}
/-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----
-- ---- ---- ---- ---- -----
My pb is that for objects like a sphere for exemple, the texture projection
see the poly from behind too and they also render in white :-( (even
if they are not belong to the cluster ).
I need to select all the poly who aren't in the matte cluster and
remove them from UV space.
I try this :
/-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----
-- ---- ---- ----
//There is a polygon cluster named "matte" in the selected object.
var oSel = Selection(0)
//Select all the poly who are not in the "matte" cluster
SelectMembers(oSel+".polymsh.cls.matte", null, null);
var oPoly = InvertSelection("Polygon", null, null);
//move the samples outside UV space for poly who are not in the "matte" cluster.
for(var i=0;i<oPoly.count;i++)
{
var oSamples = oPoly(i).Samples
TranslateUVW(oSamples,
oSel+".polymsh.cls.Texture_Coordinates_AUTO.Texture_Proj_Matte", -1,
-1, 0, siAbsolute, siU, true);
}
/-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----
-- ---- ---- ---- -----
But I've got : //ERROR : 'oPoly.count' a la valeur Null ou n'est pas
un objet. - [line 8]
Any idea on how to access all the polygons who are not in the "matte"
cluster is welcome :-)
Cheers,
Guillaume Laforge
CG artist
www.vol2nuit.fr
PS : you can download scripts here :
http://www.vol2nuit.fr/scripting/cluster_matte.zip
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