.hdrimage/vnd.radiance

HDR (.hdr)

HDR (Radiance HDR) is a high-dynamic-range image format used in 3D rendering, photography, and lighting design. Stores floating-point color values.

Quick Facts

File Extension
.hdr
MIME Type
image/vnd.radiance
Category
Image
Full Name
HDR

What is HDR?

The Radiance HDR format is a specialized file type designed to store high-dynamic-range images with floating-point color values. Unlike standard image formats that limit color information to 8 bits per channel, HDR files capture a much wider range of luminance levels. This capability makes them essential for accurate lighting simulations, 3D rendering, and professional photography where preserving detail in both shadows and highlights is critical.

Developed by Greg Ward, this format has become a standard in the CGI and visual effects industries. It allows artists to work with real-world lighting data without losing information during processing. Many 3D applications and image editors support HDR files, enabling seamless integration into workflows that require realistic illumination and environment mapping.

While primarily used for technical purposes, HDR images are also utilized in panoramic photography and virtual reality environments. The ability to store values exceeding 1.0 allows for true representation of bright light sources like the sun or artificial lamps. This ensures that when rendered, the final output maintains physical accuracy and visual fidelity across various display technologies.

Technical Specifications

DeveloperGreg Ward
First Released1985
TypeRaster Image
CompressionRun-Length Encoding (RLE)
Max ResolutionMemory Dependent
Color Depth32-bit Float (RGBE)

Pros & Cons

+Advantages

  • •Wide dynamic range
  • •Floating-point precision
  • •Industry standard for lighting
  • •Supports environment mapping

−Disadvantages

  • •Large file sizes
  • •Limited web browser support
  • •Requires tone mapping for standard displays
  • •Not suitable for general photo sharing

Common Use Cases

3D rendering environment maps

Architectural lighting design

HDR photography

Virtual reality skyboxes

Convert from HDR

Convert .hdr files to other formats.

.hdr.jpg

Convert HDR (.hdr) files to JPEG (.jpg) format. Transform your HDR files to JPG quickly and easily with File ConverterX — completely free.

.hdr.png

Convert HDR (.hdr) files to PNG (.png) format. Transform your HDR files to PNG quickly and easily with File ConverterX — completely free.

.hdr.webp

Convert HDR (.hdr) files to WebP (.webp) format. Transform your HDR files to WEBP quickly and easily with File ConverterX — completely free.

.hdr.gif

Convert HDR (.hdr) files to GIF (.gif) format. Transform your HDR files to GIF quickly and easily with File ConverterX — completely free.

.hdr.pdf

Convert HDR (.hdr) files to PDF (.pdf) format. Transform your HDR files to PDF quickly and easily with File ConverterX — completely free.

.hdr.mp4

Convert HDR (.hdr) files to MP4 (.mp4) format. Transform your HDR files to MP4 quickly and easily with File ConverterX — completely free.

.hdr.svg

Convert HDR (.hdr) files to SVG (.svg) format. Transform your HDR files to SVG quickly and easily with File ConverterX — completely free.

.hdr.heic

Convert HDR (.hdr) files to HEIC (.heic) format. Transform your HDR files to HEIC quickly and easily with File ConverterX — completely free.

.hdr.avif

Convert HDR (.hdr) files to AVIF (.avif) format. Transform your HDR files to AVIF quickly and easily with File ConverterX — completely free.

.hdr.mov

Convert HDR (.hdr) files to MOV (.mov) format. Transform your HDR files to MOV quickly and easily with File ConverterX — completely free.

.hdr.mkv

Convert HDR (.hdr) files to MKV (.mkv) format. Transform your HDR files to MKV quickly and easily with File ConverterX — completely free.

.hdr.tiff

Convert HDR (.hdr) files to TIFF (.tiff) format. Transform your HDR files to TIFF quickly and easily with File ConverterX — completely free.

.hdr.bmp

Convert HDR (.hdr) files to BMP (.bmp) format. Transform your HDR files to BMP quickly and easily with File ConverterX — completely free.

.hdr.html

Convert HDR (.hdr) files to HTML (.html) format. Transform your HDR files to HTML quickly and easily with File ConverterX — completely free.

.hdr.txt

Convert HDR (.hdr) files to Plain Text (.txt) format. Transform your HDR files to TXT quickly and easily with File ConverterX — completely free.

.hdr.eps

Convert HDR (.hdr) files to EPS (.eps) format. Transform your HDR files to EPS quickly and easily with File ConverterX — completely free.

.hdr.json

Convert HDR (.hdr) files to JSON (.json) format. Transform your HDR files to JSON quickly and easily with File ConverterX — completely free.

.hdr.yaml

Convert HDR (.hdr) files to YAML (.yaml) format. Transform your HDR files to YAML quickly and easily with File ConverterX — completely free.

.hdr.webm

Convert HDR (.hdr) files to WebM (.webm) format. Transform your HDR files to WEBM quickly and easily with File ConverterX — completely free.

.hdr.wmv

Convert HDR (.hdr) files to WMV (.wmv) format. Transform your HDR files to WMV quickly and easily with File ConverterX — completely free.

.hdr.ico

Convert HDR (.hdr) files to ICO (.ico) format. Transform your HDR files to ICO quickly and easily with File ConverterX — completely free.

.hdr.jxl

Convert HDR (.hdr) files to JPEG XL (.jxl) format. Transform your HDR files to JXL quickly and easily with File ConverterX — completely free.

.hdr.apng

Convert HDR (.hdr) files to APNG (.apng) format. Transform your HDR files to APNG quickly and easily with File ConverterX — completely free.

.hdr.m4v

Convert HDR (.hdr) files to M4V (.m4v) format. Transform your HDR files to M4V quickly and easily with File ConverterX — completely free.

.hdr.fits

Convert HDR (.hdr) files to FITS (.fits) format. Transform your HDR files to FITS quickly and easily with File ConverterX — completely free.

.hdr.heif

Convert HDR (.hdr) files to HEIF (.heif) format. Transform your HDR files to HEIF quickly and easily with File ConverterX — completely free.

.hdr.j2k

Convert HDR (.hdr) files to JPEG 2000 (.j2k) format. Transform your HDR files to J2K quickly and easily with File ConverterX — completely free.

.hdr.jp2

Convert HDR (.hdr) files to JPEG 2000 (.jp2) format. Transform your HDR files to JP2 quickly and easily with File ConverterX — completely free.

.hdr.ai

Convert HDR (.hdr) files to AI (.ai) format. Transform your HDR files to AI quickly and easily with File ConverterX — completely free.

.hdr.cin

Convert HDR (.hdr) files to Cineon (.cin) format. Transform your HDR files to CIN quickly and easily with File ConverterX — completely free.

.hdr.cur

Convert HDR (.hdr) files to CUR (.cur) format. Transform your HDR files to CUR quickly and easily with File ConverterX — completely free.

.hdr.dds

Convert HDR (.hdr) files to DDS (.dds) format. Transform your HDR files to DDS quickly and easily with File ConverterX — completely free.

.hdr.dpx

Convert HDR (.hdr) files to DPX (.dpx) format. Transform your HDR files to DPX quickly and easily with File ConverterX — completely free.

.hdr.exr

Convert HDR (.hdr) files to OpenEXR (.exr) format. Transform your HDR files to EXR quickly and easily with File ConverterX — completely free.

.hdr.flif

Convert HDR (.hdr) files to FLIF (.flif) format. Transform your HDR files to FLIF quickly and easily with File ConverterX — completely free.

.hdr.flv

Convert HDR (.hdr) files to FLV (.flv) format. Transform your HDR files to FLV quickly and easily with File ConverterX — completely free.

.hdr.mpeg

Convert HDR (.hdr) files to MPEG (.mpeg) format. Transform your HDR files to MPEG quickly and easily with File ConverterX — completely free.

.hdr.pam

Convert HDR (.hdr) files to PAM (.pam) format. Transform your HDR files to PAM quickly and easily with File ConverterX — completely free.

.hdr.pbm

Convert HDR (.hdr) files to PBM (.pbm) format. Transform your HDR files to PBM quickly and easily with File ConverterX — completely free.

.hdr.pct

Convert HDR (.hdr) files to PICT (.pct) format. Transform your HDR files to PCT quickly and easily with File ConverterX — completely free.

.hdr.pcx

Convert HDR (.hdr) files to PCX (.pcx) format. Transform your HDR files to PCX quickly and easily with File ConverterX — completely free.

.hdr.pdb

Convert HDR (.hdr) files to PDB (.pdb) format. Transform your HDR files to PDB quickly and easily with File ConverterX — completely free.

.hdr.pgm

Convert HDR (.hdr) files to PGM (.pgm) format. Transform your HDR files to PGM quickly and easily with File ConverterX — completely free.

.hdr.pnm

Convert HDR (.hdr) files to PNM (.pnm) format. Transform your HDR files to PNM quickly and easily with File ConverterX — completely free.

.hdr.ppm

Convert HDR (.hdr) files to PPM (.ppm) format. Transform your HDR files to PPM quickly and easily with File ConverterX — completely free.

.hdr.ps

Convert HDR (.hdr) files to PostScript (.ps) format. Transform your HDR files to PS quickly and easily with File ConverterX — completely free.

.hdr.psb

Convert HDR (.hdr) files to PSB (.psb) format. Transform your HDR files to PSB quickly and easily with File ConverterX — completely free.

.hdr.psd

Convert HDR (.hdr) files to PSD (.psd) format. Transform your HDR files to PSD quickly and easily with File ConverterX — completely free.

.hdr.qoi

Convert HDR (.hdr) files to QOI (.qoi) format. Transform your HDR files to QOI quickly and easily with File ConverterX — completely free.

.hdr.sgi

Convert HDR (.hdr) files to SGI (.sgi) format. Transform your HDR files to SGI quickly and easily with File ConverterX — completely free.

.hdr.svgz

Convert HDR (.hdr) files to SVGZ (.svgz) format. Transform your HDR files to SVGZ quickly and easily with File ConverterX — completely free.

.hdr.tga

Convert HDR (.hdr) files to TGA (.tga) format. Transform your HDR files to TGA quickly and easily with File ConverterX — completely free.

.hdr.wbmp

Convert HDR (.hdr) files to WBMP (.wbmp) format. Transform your HDR files to WBMP quickly and easily with File ConverterX — completely free.

.hdr.xbm

Convert HDR (.hdr) files to XBM (.xbm) format. Transform your HDR files to XBM quickly and easily with File ConverterX — completely free.

.hdr.xpm

Convert HDR (.hdr) files to XPM (.xpm) format. Transform your HDR files to XPM quickly and easily with File ConverterX — completely free.

Convert to HDR

Convert other files to .hdr format.

.jpg.hdr

Convert JPEG (.jpg) files to HDR (.hdr) format. Transform your JPG files to HDR quickly and easily with File ConverterX — completely free.

.png.hdr

Convert PNG (.png) files to HDR (.hdr) format. Transform your PNG files to HDR quickly and easily with File ConverterX — completely free.

.webp.hdr

Convert WebP (.webp) files to HDR (.hdr) format. Transform your WEBP files to HDR quickly and easily with File ConverterX — completely free.

.gif.hdr

Convert GIF (.gif) files to HDR (.hdr) format. Transform your GIF files to HDR quickly and easily with File ConverterX — completely free.

.pdf.hdr

Convert PDF (.pdf) files to HDR (.hdr) format. Transform your PDF files to HDR quickly and easily with File ConverterX — completely free.

.mp4.hdr

Convert MP4 (.mp4) files to HDR (.hdr) format. Transform your MP4 files to HDR quickly and easily with File ConverterX — completely free.

.mp3.hdr

Convert MP3 (.mp3) files to HDR (.hdr) format. Transform your MP3 files to HDR quickly and easily with File ConverterX — completely free.

.wav.hdr

Convert WAV (.wav) files to HDR (.hdr) format. Transform your WAV files to HDR quickly and easily with File ConverterX — completely free.

.flac.hdr

Convert FLAC (.flac) files to HDR (.hdr) format. Transform your FLAC files to HDR quickly and easily with File ConverterX — completely free.

.svg.hdr

Convert SVG (.svg) files to HDR (.hdr) format. Transform your SVG files to HDR quickly and easily with File ConverterX — completely free.

.heic.hdr

Convert HEIC (.heic) files to HDR (.hdr) format. Transform your HEIC files to HDR quickly and easily with File ConverterX — completely free.

.avif.hdr

Convert AVIF (.avif) files to HDR (.hdr) format. Transform your AVIF files to HDR quickly and easily with File ConverterX — completely free.

.mov.hdr

Convert MOV (.mov) files to HDR (.hdr) format. Transform your MOV files to HDR quickly and easily with File ConverterX — completely free.

.mkv.hdr

Convert MKV (.mkv) files to HDR (.hdr) format. Transform your MKV files to HDR quickly and easily with File ConverterX — completely free.

.avi.hdr

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.ogg.hdr

Convert OGG Vorbis (.ogg) files to HDR (.hdr) format. Transform your OGG files to HDR quickly and easily with File ConverterX — completely free.

.aac.hdr

Convert AAC (.aac) files to HDR (.hdr) format. Transform your AAC files to HDR quickly and easily with File ConverterX — completely free.

.m4a.hdr

Convert M4A (.m4a) files to HDR (.hdr) format. Transform your M4A files to HDR quickly and easily with File ConverterX — completely free.

.tiff.hdr

Convert TIFF (.tiff) files to HDR (.hdr) format. Transform your TIFF files to HDR quickly and easily with File ConverterX — completely free.

.bmp.hdr

Convert BMP (.bmp) files to HDR (.hdr) format. Transform your BMP files to HDR quickly and easily with File ConverterX — completely free.

.txt.hdr

Convert Plain Text (.txt) files to HDR (.hdr) format. Transform your TXT files to HDR quickly and easily with File ConverterX — completely free.

.eps.hdr

Convert EPS (.eps) files to HDR (.hdr) format. Transform your EPS files to HDR quickly and easily with File ConverterX — completely free.

.stl.hdr

Convert STL (.stl) files to HDR (.hdr) format. Transform your STL files to HDR quickly and easily with File ConverterX — completely free.

.webm.hdr

Convert WebM (.webm) files to HDR (.hdr) format. Transform your WEBM files to HDR quickly and easily with File ConverterX — completely free.

.wmv.hdr

Convert WMV (.wmv) files to HDR (.hdr) format. Transform your WMV files to HDR quickly and easily with File ConverterX — completely free.

.wma.hdr

Convert WMA (.wma) files to HDR (.hdr) format. Transform your WMA files to HDR quickly and easily with File ConverterX — completely free.

.opus.hdr

Convert Opus (.opus) files to HDR (.hdr) format. Transform your OPUS files to HDR quickly and easily with File ConverterX — completely free.

.dng.hdr

Convert DNG (.dng) files to HDR (.hdr) format. Transform your DNG files to HDR quickly and easily with File ConverterX — completely free.

.ico.hdr

Convert ICO (.ico) files to HDR (.hdr) format. Transform your ICO files to HDR quickly and easily with File ConverterX — completely free.

.jxl.hdr

Convert JPEG XL (.jxl) files to HDR (.hdr) format. Transform your JXL files to HDR quickly and easily with File ConverterX — completely free.

.apng.hdr

Convert APNG (.apng) files to HDR (.hdr) format. Transform your APNG files to HDR quickly and easily with File ConverterX — completely free.

.3gp.hdr

Convert 3GP (.3gp) files to HDR (.hdr) format. Transform your 3GP files to HDR quickly and easily with File ConverterX — completely free.

.m4v.hdr

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.aiff.hdr

Convert AIFF (.aiff) files to HDR (.hdr) format. Transform your AIFF files to HDR quickly and easily with File ConverterX — completely free.

.3fr.hdr

Convert Hasselblad RAW (.3fr) files to HDR (.hdr) format. Transform your 3FR files to HDR quickly and easily with File ConverterX — completely free.

.3g2.hdr

Convert 3G2 (.3g2) files to HDR (.hdr) format. Transform your 3G2 files to HDR quickly and easily with File ConverterX — completely free.

.ai.hdr

Convert AI (.ai) files to HDR (.hdr) format. Transform your AI files to HDR quickly and easily with File ConverterX — completely free.

.arw.hdr

Convert Sony RAW (.arw) files to HDR (.hdr) format. Transform your ARW files to HDR quickly and easily with File ConverterX — completely free.

.cin.hdr

Convert Cineon (.cin) files to HDR (.hdr) format. Transform your CIN files to HDR quickly and easily with File ConverterX — completely free.

.cr2.hdr

Convert Canon RAW (.cr2) files to HDR (.hdr) format. Transform your CR2 files to HDR quickly and easily with File ConverterX — completely free.

.cur.hdr

Convert CUR (.cur) files to HDR (.hdr) format. Transform your CUR files to HDR quickly and easily with File ConverterX — completely free.

.dds.hdr

Convert DDS (.dds) files to HDR (.hdr) format. Transform your DDS files to HDR quickly and easily with File ConverterX — completely free.

.dpx.hdr

Convert DPX (.dpx) files to HDR (.hdr) format. Transform your DPX files to HDR quickly and easily with File ConverterX — completely free.

.emf.hdr

Convert EMF (.emf) files to HDR (.hdr) format. Transform your EMF files to HDR quickly and easily with File ConverterX — completely free.

.exr.hdr

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.fits.hdr

Convert FITS (.fits) files to HDR (.hdr) format. Transform your FITS files to HDR quickly and easily with File ConverterX — completely free.

.flif.hdr

Convert FLIF (.flif) files to HDR (.hdr) format. Transform your FLIF files to HDR quickly and easily with File ConverterX — completely free.

.flv.hdr

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.heif.hdr

Convert HEIF (.heif) files to HDR (.hdr) format. Transform your HEIF files to HDR quickly and easily with File ConverterX — completely free.

.j2k.hdr

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.jp2.hdr

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.mpeg.hdr

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.nef.hdr

Convert Nikon RAW (.nef) files to HDR (.hdr) format. Transform your NEF files to HDR quickly and easily with File ConverterX — completely free.

.orf.hdr

Convert Olympus RAW (.orf) files to HDR (.hdr) format. Transform your ORF files to HDR quickly and easily with File ConverterX — completely free.

.pam.hdr

Convert PAM (.pam) files to HDR (.hdr) format. Transform your PAM files to HDR quickly and easily with File ConverterX — completely free.

.pbm.hdr

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.pct.hdr

Convert PICT (.pct) files to HDR (.hdr) format. Transform your PCT files to HDR quickly and easily with File ConverterX — completely free.

.pcx.hdr

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.pdb.hdr

Convert PDB (.pdb) files to HDR (.hdr) format. Transform your PDB files to HDR quickly and easily with File ConverterX — completely free.

.pef.hdr

Convert Pentax RAW (.pef) files to HDR (.hdr) format. Transform your PEF files to HDR quickly and easily with File ConverterX — completely free.

.pgm.hdr

Convert PGM (.pgm) files to HDR (.hdr) format. Transform your PGM files to HDR quickly and easily with File ConverterX — completely free.

.pnm.hdr

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.ppm.hdr

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.ps.hdr

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.psb.hdr

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.psd.hdr

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.qoi.hdr

Convert QOI (.qoi) files to HDR (.hdr) format. Transform your QOI files to HDR quickly and easily with File ConverterX — completely free.

.raf.hdr

Convert Fuji RAW (.raf) files to HDR (.hdr) format. Transform your RAF files to HDR quickly and easily with File ConverterX — completely free.

.raw.hdr

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.rw2.hdr

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.sgi.hdr

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.sr2.hdr

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.svgz.hdr

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.tga.hdr

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.wbmp.hdr

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.wmf.hdr

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.xbm.hdr

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.xcf.hdr

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.xpm.hdr

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.ac3.hdr

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.amf.hdr

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.amr.hdr

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.asf.hdr

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.au.hdr

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.caf.hdr

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.dfpwm.hdr

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.dts.hdr

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.dv.hdr

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.eac3.hdr

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.f4v.hdr

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.gsm.hdr

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.gxf.hdr

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.ivf.hdr

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.m4b.hdr

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.mlp.hdr

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.mmf.hdr

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.mp2.hdr

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.mxf.hdr

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.nut.hdr

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.rm.hdr

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.roq.hdr

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.sbc.hdr

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.sox.hdr

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.stp.hdr

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.swf.hdr

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.tta.hdr

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.voc.hdr

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.w64.hdr

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.wv.hdr

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.y4m.hdr

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Frequently Asked Questions

HDR stores floating-point values for wider dynamic range.

Need to convert HDR files?

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