PNG Internal Library Error while scripting VRayFrameBuffer output

[MoonDoggie]

Trying to script a solution for autopathing, but keep running into an error that I've gotten around before, I just don't remember how. It's the "PNG Library Internal Error" when changing the vray frame buffer's output_splitfilename via script.

Here's a workaround someone found, but it's not working for me, any idea guys?

http://forums.cgsociety.org/showthread.php?t=830811

[MoonDoggie]

Figured it out, contrary to that code posted on CGSociety, this code works. Pass the argument a filename and extension "test.jpg" and it will "initialize" the vray frame buffer to not give this error when first opening a scene when changing the splitGBuffer filename without clicking the browse button.

fn initVRayFrameBuffer str = (
    -- Initialize the VRay Frame Buffer 
    -- http://forums.cgsociety.org/showthread.php?t=830811
    local bm_filename = (getDir #userscripts) + "\\" + (filenameFromPath str)
    local bm = Bitmap 10 10 color:red filename:bm_filename
    save bm
    if (isProperty renderers.current #output_splitbitmap) 
        renderers.current.output_splitbitmap = bm
    close bm
    deleteFile bm_filename
)