[Closed] MAXopenExr problems

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Nov 19, 2011 11:03 pm

Hey Eric,
thanks for the tip about Brazil.
I’m rendering a lot of images for use in an online shop. I’m compositing separate passes from VRay with maxscript while adjusting the lightingpass and applying an adjusted alpha-map to them. Previously I unpremultiplied the image myself with the use of the alpha-channel, but I was getting artefacts.
For now I’m trying the rpf-fileformat. I’ve never used it before, but it seems to support all I need. But I’ll definitely check out the rendereffect you suggest.

dans

Nov 19, 2011 11:03 pm

psd-manager 3 (PSD Export, Commercial) is scriptable. Supports 8,16,32 bit output. Premultiplied or straight Alpha… You can control the render elements (PSD layers) premultiplied/straight option too.

However, since it sounds like you need to be able to read it as well and 3ds Max unfortunately only supports 8-bit PSD files it probably is not of use to you.

Daniel

Cryptite

Nov 19, 2011 11:03 pm

I’ve been messing around with this too, namely trying to take all the Render Elements, and add them manually in the EXR setup in a certain way. The only problem is, it doesn’t seem like it works unless I have manually closed the render dialog window before running the script. If I try to have the script do it, nothing changes. Anybody else have this problem or has a solution to it?

Oh yeah, this is Max 2012 and using vRay 1.5 if that has anything to do with it. Below is my code:

renderSceneDialog.close()	

mgr = MaxOps.GetCurRenderElementMgr()

for x in 1 to mgr.NumRenderElements() do (
	ele = (mgr.GetRenderElement (x-1))
	fopenexr.addRenderElementLayerRef ele (ele.elementname as String) 1 0
	print "Added " + ele.elementname as String + " to EXR: " + (result as String)		
)

	
renderSceneDialog.update()	
renderSceneDialog.open()

In fact, sometimes it doesn’t even seem to matter. There’s been no way to tell whether it will work or not, seems like sheer luck. What gives!

PiXeL_MoNKeY

Nov 19, 2011 11:03 pm

You may need to reset the path. Recently I found (last week actually) that you can script the main controls using layer 0 as the input. However, to get the files to stick you need to set the path again for the output file.

fopenexr.setLayerOutputFormat 0 0 -- set Main Render to FLOAT32
 fopenexr.setLayerOutputFormat 0 1 -- set Main Render to FLOAT16
 fopenexr.setLayerOutputFormat 0 2 -- set Main Render to INT32

fopenexr.setLayerOutputType 0 0 -- set Main Render to RGBA
 fopenexr.setLayerOutputType 0 1 -- set Main Render to RGB
 fopenexr.setLayerOutputType 0 2 -- set Main Render to MONO

So to change the main settings you need to call:

fopenexr.setLayerOutputFormat 0 2
fopenexr.setLayerOutputType 0 2
rendOutputFileName = rendOutputFileName

So in your case you can remove the close and open and simply set the output between the loop and the update:

mgr = MaxOps.GetCurRenderElementMgr()

for x in 1 to mgr.NumRenderElements() do (
	ele = (mgr.GetRenderElement (x-1))
	fopenexr.addRenderElementLayerRef ele (ele.elementname as String) 1 0
	print "Added " + ele.elementname as String + " to EXR: " + (result as String)		
)
[b]rendoutputfilename = rendoutputfilename[/b]
	
renderSceneDialog.update()

-Eric