redmotion: Auto-rendermap script (XSI)

12 June 2007

Auto-rendermap script (XSI)

Here is a short script for automating the UV-mapping and rendermapping of any polymesh objects you have selected. Change the parts highlighted in red if you want better resolution textures to be generated (eg:512 to 1024). You can also add further rendermap options here like to render illumination only. The line in green is where the UVs are applied. This can be amended to suit various situations.

All rendermaps are automatically saved out to your project/Rendermaps directory.

Once rendermapping is complete, constant shaders are then applied to all the objects and the textures are reattached to the correct objects automatically.

Switch to textured decal in the viewport to see the result.

(Save a copy of the scene before continuing and use at your own risk)

'Make a rendermap on every selected object in scene

'completed between 10 & 11-06-07
'By Jason Wells aka Redmotion

dim name, imfile, oClip

set list = GetValue( "SelectionList" )
if list.count = 0 then
MsgBox "Please select at least one polymesh object first!!"

'start rendermap make routine - depending on scene size and object complexity this could take a while... :)
for each item in list
name =
if item.type = "polymsh" then
SelectObj name, , True
'set up unique UVs with name starting with RM_
oUVs = GenerateUniqueUVs (, "RM_" & name)

AddProp "RenderMap"
SetValue name & ".RenderMap.imagefilepath", "Render_Pictures\RM_" & name & ".pic"
SetInstanceDataValue , name & ".RenderMap.uvprop", "RM_" & name

SetValue name & ".polymsh.cls.Texture_Coordinates_AUTO.RM_"& name &".PolyPackUV.targresv", 512
SetValue name & ".polymsh.cls.Texture_Coordinates_AUTO.RM_"& name &".PolyPackUV.targresu", 512
SetValue name & ".RenderMap.resolutionx", "512"
SetValue name & ".RenderMap.squaretex", True

logmessage "RENDERMAP generation starts for: " & & " - please wait"
RegenerateMaps name & ".RenderMap"
logmessage "RENDERMAP generation complete!"
end if

'change the shaders for selected objects to constants and add RM_image
for each item in list
name =
if item.type = "polymsh" then
SelectObj name, , True

'bring in all rendermap clips
imfile = "Render_Pictures\RM_" & name & ".pic"

oClip = "Clips.RM_" & name & "_pic"

ApplyShader "Material\Constant", , , , siLetLocalMaterialsOverlap
CopyPaste , imfile, "TransientObjectContainer", 1
SIConnectShaderToCnxPoint oClip, ".material.Constant.color", False
SetInstanceDataValue , ".material.Constant.Image.tspace_id", "RM_" & name
end if

end if


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