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Note: this page was generated using a very early version of the
HDR 6x6 codec and is now obsolete.
Reinhard tonemapped, Core i7 (Raptor Lake). Features: 48 ASTC HDR 6x6
modes, 1 or 2 subsets, weight grid upsampling, CEM 7/11, ICtCp colorspace error
metrics, Lagrangian Rate-Distortion Optimization with perceptual
weighting, endpoint DPCM, ASTC configuration reuse.
Notes:
- The LDR examples below were converted from sRGB to linear light and
then multiplied by 100 nits before encoding as HDR.
- These images are already outdated - we've added dual plane support
to the encoder. Roughly 1/3-1/2 of blocks now use dual planes.
- candleglass.exr, 1000x810, 1.36 bits/pixel, 4.4ms decode to ASTC,
27.7ms transcode to BC6H
ASTC
HDR 6x6
BC6H
ASTC
HDR 6x6
BC6H
- office.hdr, 2000x1312, 2.39 bits/pixel, 39ms decode to ASTC, 12.5ms
transcode to BC6H
ASTC
HDR 6x6:
BC6H:
ASTC
HDR 6x6:
BC6H:
- aft_lounge_4k.exr, 4096x2048, 2.28 bits/pixel, 55ms decode to ASTC,
370ms transcode to BC6H
ASTC
HDR 6x6:
BC6H:
ASTC
HDR 6x6:
BC6H:
- xmen.png (LDR, no tonemapping), 1000x1482, 2.99 bits/pixel, 11ms
decode to ASTC, 51.5ms transcode to BC6H
ASTC
HDR 6x6
BC6H
- batman_cover.png (LDR, no tonemapping), 3.1 bits/pixel, 1.5ms decode
to ASTC, 12.3ms transcode to BC6H
ASTC
HDR 6x6
BC6H
- sciwallpaper.png (LDR, no tonemapping), 2880x1800, 2.59 bits/pixel,
35.5ms decode to ASTC, 202ms transcode to BC6H
ASTC
HDR 6x6 
BC6H
- desk.exr, 644x874, 3.1 bits/pixel, 7.6ms decode to ASTC, 26.5ms
transcode to BC6H
ASTC
HDR 6x6
BC6H
LDR delta visualization (tonemapped ASTC HDR 6x6 - tonemapped BC6H,
biased by 128):
- Custom Processing/visualization tool screenshot:
