Smoke supports the OpenEXR file format. This file format stores 16- or 32-bit floating-point image data. Advantages of the OpenEXR format include a high dynamic range, high-quality colour resolution, and portability.
From the EditDesk or Batch, you can convert OpenEXR files using the LUT Editor. You can alter image channel values (such as the luminance) using the viewer's conversion controls, however, you cannot alter the original file.
You can convert the output of an OpenEXR image to an integer image with a bit depth of 8, 10, or 12 bits. At a destination bit depth of 12 bits, you can store packed data (which requires less space on the framestore) or unpacked data (which results in faster retrieval times). You still have the option of exporting to a new 16-bit floating point image.
The following steps are the suggested workflow when working with OpenEXR images.
| Step: | Refer to: |
|---|---|
| 1. Import the image. | Importing OpenEXR Files. |
| 2. Work only with nodes, modules, and operations that support the OpenEXR image format (optional). | Supporting Floating-point Images. |
| 3. Convert the image. | Converting an OpenEXR Image in the LUT Editor and Using OpenEXR Images in Batch. |
| 4. Convert the image and make changes to the basic conversion curve and editing parameters, similarly to a 1D LUT. Export an 8-, 10-, or 12-bit integer image from the OpenEXR image. | Converting an OpenEXR Image in the LUT Editor. |
To access EXR Display, open the LUT Editor from:
