RLA to VIFF Converter

Convert legacy renders to VIFF format online for free

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Fast Conversion

RLA to VIFF processing completes in seconds for typical image sizes. Cloud infrastructure keeps turnaround times consistently short.

Cloud Processing

Conversion runs on remote servers, so your computer stays fast. Even large RLA images are handled without slowing your device.

Render Data Preserved

RLA stores rich render data from VFX production. Converting to VIFF captures the visual output in a universally supported format.

How to convert RLA to VIFF

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose viff or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your viff file right afterwards

About formats

RLA is a raster image format developed by Wavefront Technologies in the mid-1980s for their Advanced Visualizer 3D rendering software, which ran primarily on Silicon Graphics workstations. RLA files store rendered frames with support for multiple channels beyond standard RGB — including alpha transparency, Z-depth, surface normal vectors, object ID, material ID, and other arbitrary data channels that compositing artists use to manipulate rendered elements without re-rendering. Each scanline is independently compressed using run-length encoding, allowing efficient random access to any row without decompressing the entire image. The format supports 8-bit, 16-bit, and 32-bit floating-point per channel, making it suitable for high-dynamic-range rendering output. RLA was a staple of visual effects production throughout the 1990s, used extensively in film and broadcast VFX pipelines alongside Wavefront's Composer compositing software. The format's successor, RPF (Rich Pixel Format), extended the concept further and was adopted by Autodesk 3ds Max, but RLA remains the earlier standard. One advantage is the multi-channel rendering data: unlike simple RGB image formats, RLA files carry per-pixel depth, normal, and ID passes that enable post-render effects like depth-of-field blur, fog, re-lighting, and object-level color correction without returning to the 3D application. This pipeline efficiency made RLA essential in early visual effects production. The format is recognized by Autodesk tools, Foundry Nuke, ImageMagick, and various legacy compositing applications.
Initial release: 1986
VIFF (Visualization Image File Format) is a scientific image format developed by Khoral Research (originally at the University of New Mexico), first appearing around 1990 with the Khoros visual programming environment for image processing and data visualization. VIFF files use a 1024-byte header followed by optional color map data, and the image data itself, with the header containing detailed specifications: data storage type (bit, byte, short, integer, float, double, complex), data encoding (none, CCITT Group 3/4), color space model (none, generic, RGB, HSI, CMYK, and others), and support for multi-band (multi-channel) images with arbitrary numbers of bands. The format accommodates one-dimensional signals, two-dimensional images, three-dimensional volumes, and location data (sparse pixel coordinates), making it versatile beyond simple image storage. VIFF was designed for the Khoros/VisiQuest visual dataflow programming environment, where users constructed image processing pipelines by connecting processing nodes in a graphical canvas — an approach that influenced later systems like AVS, MATLAB Simulink, and LabVIEW. One advantage is scientific data fidelity: VIFF supports the full range of numeric types used in scientific computing (including complex numbers and double-precision floats), stores multi-band datasets natively, and carries calibration metadata — making it suitable for remote sensing, medical imaging, and spectral analysis applications where generic image formats lose information. The format's connection to the Khoros visual programming paradigm provides another notable dimension — VIFF was the standard I/O format for one of the most influential early visual programming environments for scientific image analysis. VIFF files can be read by ImageMagick and legacy Khoros/VisiQuest installations.
Developer: Khoral Research
Initial release: 1990

Frequently Asked Questions

Why convert RLA to VIFF?

RLA was designed for 1990s VFX pipelines and lacks modern support. Exporting to VIFF lets you archive and share those renders universally.

What programs can open VIFF?

Khoros/VisiQuest visualization software opens VIFF natively. ImageMagick and XnView can also import VIFF image data files.

Is the conversion from RLA to VIFF lossless?

The conversion keeps your image data intact — VIFF does not introduce compression artifacts, ensuring the output matches the original closely.

How long does RLA to VIFF conversion take?

Most RLA images convert to VIFF within seconds. The exact time depends on the resolution and complexity of the source, but it is typically quick.

Can I queue several RLA files for conversion?

Absolutely. Add several RLA images at once, set VIFF as the output, and the converter processes them all in parallel for maximum efficiency.

Can I convert old VFX project renders?

Yes, as long as the files are in RLA format. Upload them directly and Convertio will convert them to VIFF without extra preparation.