OpenImageIO

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I'm trying to force openexr output to be single threaded via OPENIMAGEIO_THREADS, but that seems to be impossible. Should it be possible? In exroutput.cpp's [set_exr_threads()](https://github.com/OpenImageIO/oiio/blob/master/src/openexr.imageio/exroutput.cpp#L265), we have: ``` int oiio_threads...

e4lam

Fix #4265: Add appropriate compiler defines and flags for SIMD with MSVC

3

## Description This should address the following 2 issues when using MSVC: - MSVC does not set defines like `__SSE2__` or `__SSE4_2__` etc. we must do that ourselves - MSVC...

jessey-git

**Describe the bug** Broadly speaking there are two issues here: - MSVC's `/arch` switch only supports the following items[1]: `AVX|AVX2|AVX512` - MSVC does not define `__SSE4_2__`, or similar, meaning all...

jessey-git

[BUG] When using ImageBuf, this file reports a divide-by-zero exception error. Please take a look

2

**Describe the bug** When using ImageBuf, this file reports a divide-by-zero exception error. Please take a look This is a sample file. [XPPen_new_logo.zip](https://github.com/AcademySoftwareFoundation/OpenImageIO/files/14567847/XPPen_new_logo.zip) **OpenImageIO version and dependencies** v2.4.13.0 **To Reproduce**...

cool2528

[FEATURE REQUEST] ImageBuf "wrap" numpy array in python

2

In C++, it is straightforward to construct an ImageBuf that "wraps" an existing buffer without owning the memory, where you just give it the pointer to the memory and the...

lgritz

nVIDIA CUDA R3D

2

## Description This is intended to add support of R3D CUDA based decoder, which is much faster than R3D CPU only decoder. RED One clips are handled by the CPU....

1div0

build: new system to build dependencies locally if needed

10

High level TLDR: * If checked_find_package doesn't find a dependency (or it is not an acceptable version), it looks for `src/cmake/build_.cmake` and if that exists, includes it. It can do...

lgritz

A small piece of the ongoing switch to std::format/print style text output. This part is for error and debugging output when reading/writing exr images. I also switched conditional compilation to...

lgritz

[FEATURE REQUEST] OIIO::ImageBufAlgo::make_texture doesn't take an nthreads argument

2

https://openimageio.readthedocs.io/en/stable/imagebufalgo.html says: `All ImageBufAlgo functions take an optional nthreads parameter that signifies the maximum number of threads to use to parallelize the operation. The default value for nthreads is 0,...

etheory

making a stab at generated images by bending the null image plugin

3

**Is your feature request related to a problem? Please describe.** I was looking for 'an easy way in' to introduce arbitrary generated image content with minimal coding effort. My problem...

kfjahnke