usage of displayWindow produces invalid files

Hello,

This is probably very trivial, but I can seem to find a solution. This code works:

Header header (width, height);
RgbaOutputFile file(fileName, header, WRITE_RGB);
file.setFrameBuffer(pixels, 1, width);
file.writePixels(height);

This code doesn’t:

float DCI_SCOPE_RATIO = 858.0 / 1080.0;
int displayHeight = round(height * DCI_SCOPE_RATIO);
int displayHeightOffset = (height - displayHeight) / 2;
Box2i dataWindow (V2i (0, 0 - displayHeightOffset), V2i (width - 1, height - 1));
Box2i displayWindow (V2i (0, 0), V2i (width - 1, displayHeight - 1));
Header header (displayWindow, dataWindow);
RgbaOutputFile file(fileName, header, WRITE_RGB);
file.setFrameBuffer(pixels, 1, width);
file.writePixels(height);

It compiles and all, but it writes corrupted OpenEXR files that are unreadable and that exrheader reports as being “incomplete”. Is there an obvious problem somewhere?

Thanks!

Vincent

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