Hi,
I have a problem using OpenImageIO for writing exr files if I use it in
a maya plugin on Windows.
I used it to write the final results of my mayaToCorona renderer plugin
what works fine unless I try to unload the plugin.
Then maya freezes completly.
Today I tried to use it to write a Arnold exr driver which enables the
writing of AOV with mixed bit depths what Arnold does not yet support.
Here an output driver is loaded during rendering and unloaded after
rendering and exactly the same happens. I use it with mtoa on windows.
As soon as Arnold tried to unload the driver after a rendering is done,
maya freezes.
Maybe anyone has some experience with this or has any idea what is
happening here. I have tried the following:
OIIO::ImageOutput *out = OIIO::ImageOutput::create(filename);
delete out;
The problem only appears if the filename is an exr file. With jpeg or
tiff, everything works fine without any problems.
So my idea was to check if the problem has something to do with openExr
itself so I tried to write a simple file with Imf tools:
void writeExrTest()
{
int width = 512;
int height = 512;
const char *fileName = "c:/daten/testimage.exr";
Rgba *pixels = new Rgba[512*512];
RgbaOutputFile file(fileName, width, height, WRITE_RGBA);
file.setFrameBuffer (pixels, 1, width);
file.writePixels (height);
}
And this worked fine - no blocking.
I use openExr 2.2 together with OIIO 1.5. Compiled with Visual c++ 11 on
Windows7.
Tomorrow I'll try to export an ass file and check if the same happens
with the standalone.
And I did not try it in release mode yet. I'll check it tomorrow.
I'd really appreciate any ideas. Of course I can implement it completly
without OpenImageIO but I prefer to use it because it makes life easier.
haggi
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