Re: usage of displayWindow produces invalid files

Seems like you aren't writing enough rows - shouldn't you be writing
(height + displayHeightOffset) rows of data in the second
case?

Or perhaps you mean to say dataWindow (V2i (0, 0 - displayHeightOffset),
V2i (width - 1,
height - 1
- displayHeightOffset));

On 18/03/14 08:48, Vincent Olivier
wrote:

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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