Author: _wb_
Title: JXL
File size: 352 bytes
File type: JPEG XL (image/jxl)
Date: September 3rd, 2022
Resolution: 2048x1152
Bit depth: 9-bit
jxl_from_tree source code:
(requires this version of jxl_from_tree:
https://github.com/libjxl/libjxl/pull/1833)
/* Background layer: Weighted predictor cloudy stuff with some noise added */
Width 1024
Height 576
Upsample 2
Bitdepth 9
Alpha
NotLast
Noise 0.1 0.05 0.05 0.05 0.05 0.05 0.05 0.0
RCT 13
if c > 2
- Set 511
if c > 1
if y > 0
- NW 1
- N -1
if y > 432
if WGH > 0
- AvgN+NE -3
- AvgN+NW -1
if c > 0
if y > 0
- N 2
- Set -500
if y > 30
if N > 300
- AvgW+NW -300
if N > -50
if WGH > -3
- AvgN+NE 7
- AvgN+NW -3
- AvgN+NW 100
if W > -200
- Weighted -2
- Select 350
/* Overlay 1: a spline of light that will go around the JXL logo */
FramePos 512 164
Upsample 1
BlendMode kAdd
NotLast
Spline
0 -0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0.7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0.8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2.0 1.0 -0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
20 48
992 128
128 196
880 256
220 320
832 384
128 448
920 512
64 544
EndSpline
RCT 0
- Set 0
/* Overlay 2: Sierpinski-ish triangles to go below the JXL logo */
FramePos 512 640
Upsample 1
BlendMode kBlend
NotLast
RCT 0
if c > 2
if y > 0
if N > 0
if NW-N > -1
if N-NE > 0
- Set 0
- N + 0
if N-NE > 0
- N + 0
- Set 0
if NW-N > 0
if N-NE > -1
- NW + 0
- Set 0
if N-NE > -1
- Set 0
- Set 280
if x > 511
- Set 1
- Set 0
- W 1
/* Overlay 3: a JXL logo */
FramePos 512 164
Upsample 1
GroupShift 3
BlendMode kBlend
NotLast
RCT 13
if c > 2
if y > 0
if y > 336
if x > 510
if x > 511
- NW 0
if y > 383
- Set 0
- N -10
- NE 0
if x > 511
- NE + 0
- NW + 0
if x > 1022
- Set 0
if x > 928
- W 10
if x > 927
- Set -450
if x > 895
- Set 0
if x > 801
- W 10
if x > 800
- Set -450
if x > 223
- Set 0
if x > 128
- W -10
if x > 127
- Set 500
if x > 95
- Set 0
if x > 1
- W -10
if x > 0
- Set 500
- Set 0
if c > 0
if x > 0
- W 1
- W -1
if y > 0
- N 3
- Set -560
/* Overlay 4: a signature (JS) in the bottom right */
FramePos 1860 950
BlendMode kAdd
Upsample 1
Spline
3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1.0 0.3 -0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
40 75
55 70
55 160
10 150
70 130
110 120
40 100
120 80
EndSpline
RCT 0
- Set 0
