https://github.com/user-attachments/assets/452a23b6-a691-4ffb-a140-041f0300f2aa

FastLED 3.10.2

CORKSCREW MAPPING!
- Want to create a light saber or festival stick? Before your options were to have vertical strips.
- Now you can use a corkscrew mapping fl/corkscrew.h, see examples/FestivalStick
  - You input the number of LEDS + number of turns.
  - Corkscrew will provide a surface XY grid that you draw too.
    - then call Corkscrew::draw(), and the current surface will be mapped to the corkscrew.
    - Rendering is done via 2x2 bilinear sampling. Looks great!
Animartrix - 30% faster due to forced -O3 and fastmath compiler settings for this one file.
Ease Functions - lots and lots of ease functions! Great for animations!
- see fl/ease.h and the demo examples/Ease/Ease.ino
- Fast! Everything is done in integer space.
3D Perlin noise (inoise8(x, y, z)) range utilization improved from 72.9% to 88.6%
- Significantly better quality for volumetric LED effects (3D fire, clouds, particles)
- Uses industry-standard 12 edge vectors of a cube for optimal gradient coverage
Adafruit NeoPixel Bridge: Optional Adafruit_NeoPixel clockless controller support
- For some platforms Adafruits NeoPixel just works better.
- Enable with #define FASTLED_USE_ADAFRUIT_NEOPIXEL before including FastLED
- Now your WS2812 chipset will use the AdafruitNeopixel library (if installed)
New LED chipset: SM16824E
- 3-Wire
- See also: https://github.com/FastLED/FastLED/issues/1941#issuecomment-2981643952
apollo3_red (stm variant): beta support.
HSV16 support
- CRGB -> HSV -> CRGB is highly lossy
- CRGB -> HSV16 -> CRGB is almost perfect.
- Integer based so it's fast.
ColorBoost
- CRGB::colorBoost()
- Are you doing video on WS2812? Well then you probably are using gamma correction
- Color Boost is an alternative for gamma correction for the WS2812 and other RGB8 chipsets.
  - It preserves luminosity but allows you to increase saturation.
  - HSV16 is used to preserve color resolution.
HSV -> CRGB default conversion function can now be overriden.
- Thanks to https://github.com/ssilverman or this full spectrum HSV implementation.
If you just want to change it for your sketch you can use this:
- #define FASTLED_HSV_CONVERSION_RAINBOW (default)
- #define FASTLED_HSV_CONVERSION_SPECTRUM
- #define FASTLED_HSV_CONVERSION_FULL_SPECTRUM
- To change for the entire engine (recommended) then set these as build flags:
  - -DFASTLED_HSV_CONVERSION_RAINBOW
  - -DFASTLED_HSV_CONVERSION_SPECTRUM
  - -FASTLED_HSV_CONVERSION_FULL_SPECTRUM
fl/fetch.h
- A non blocking http fetch library returning an fl/promise.h
- You can then await the promise with fl::await or install a callback to be invoked. The latter is recommended.
fl/json.h rewrite
- Much more ergonic library. Fast parsing for packed arrays of number
- The underlying ArduinoJson library is only ergonomic if you allow std:string and std::sstream, which is missing on platforms like avr. So we had to write our own api to handle this.
Platforms
- ESP32-C5 is now supported.
- ESP32 WS2812 SPI driver has a fix for it's async draw routine.
- Blend2d will now replace a subfx XYMap (when necessary) to prevent double mapping. A warning will be issued.
- Seeed XIAO nRF52840 Sense: Fixed incorrect pin mappings that were copied from Adafruit Feather board
- APA102HD Gamma Correction Algorithm: Completely rewritten with closed-form mathematical solution
  - Thanks https://github.com/gwgill!
  - Graph of the old algorithms quantization issues can be see here:
    - https://www.argyllcms.com/APA102_loglog.svg
- STM32F1 pin mapping fixes (blue pill)
  - https://github.com/FastLED/FastLED/pull/1973
  - Thanks https://github.com/vishwamartur!
Internal stuff
- FastLED is now way more strict in it's compiler settings. Warnings are treated as errors
  - Lots of fixes, some code required amnesty.
- The examples now compile under clang and run for ./test
- All examples now compile for ALL platforms.
  - this was a major undertaking.
  - required a rewrite of the testing infrastructure.
  - Teensy41 took ~ 1 hours to compile 40 examples, now it can do 80 examples in ~8 mins

Color Boost Demo
image (3)

FastLED 3.10.2

CORKSCREW MAPPING!

Want to create a light saber or festival stick? Before your options were to have vertical strips.
Now you can use a corkscrew mapping fl/corkscrew.h, see examples/FestivalStick
- You input the number of LEDS + number of turns.
- Corkscrew will provide a surface XY grid that you draw too.
  - then call Corkscrew::draw(), and the current surface will be mapped to the corkscrew.
  - Rendering is done via 2x2 bilinear sampling. Looks great!

Animartrix - 30% faster due to forced -O3 and fastmath compiler settings for this one file.

Ease Functions - lots and lots of ease functions! Great for animations!

see fl/ease.h and the demo examples/Ease/Ease.ino
Fast! Everything is done in integer space.

3D Perlin noise (inoise8(x, y, z)) range utilization improved from 72.9% to 88.6%

Significantly better quality for volumetric LED effects (3D fire, clouds, particles)
Uses industry-standard 12 edge vectors of a cube for optimal gradient coverage

Adafruit NeoPixel Bridge: Optional Adafruit_NeoPixel clockless controller support

For some platforms Adafruits NeoPixel just works better.
Enable with #define FASTLED_USE_ADAFRUIT_NEOPIXEL before including FastLED
Now your WS2812 chipset will use the AdafruitNeopixel library (if installed)

New LED chipset: SM16824E

3-Wire
See also: https://github.com/FastLED/FastLED/issues/1941#issuecomment-2981643952

apollo3_red (stm variant): beta support.

HSV16 support

CRGB -> HSV -> CRGB is highly lossy
CRGB -> HSV16 -> CRGB is almost perfect.
Integer based so it's fast.

ColorBoost

CRGB::colorBoost()
Are you doing video on WS2812? Well then you probably are using gamma correction
Color Boost is an alternative for gamma correction for the WS2812 and other RGB8 chipsets.
- It preserves luminosity but allows you to increase saturation.
- HSV16 is used to preserve color resolution.

HSV -> CRGB default conversion function can now be overriden.

Thanks to https://github.com/ssilverman or this full spectrum HSV implementation.

If you just want to change it for your sketch you can use this:

#define FASTLED_HSV_CONVERSION_RAINBOW (default)
#define FASTLED_HSV_CONVERSION_SPECTRUM
#define FASTLED_HSV_CONVERSION_FULL_SPECTRUM
To change for the entire engine (recommended) then set these as build flags:
- -DFASTLED_HSV_CONVERSION_RAINBOW
- -DFASTLED_HSV_CONVERSION_SPECTRUM
- -FASTLED_HSV_CONVERSION_FULL_SPECTRUM

fl/fetch.h

A non blocking http fetch library returning an fl/promise.h
You can then await the promise with fl::await or install a callback to be invoked. The latter is recommended.

fl/json.h rewrite

Much more ergonic library. Fast parsing for packed arrays of number
The underlying ArduinoJson library is only ergonomic if you allow std:string and std::sstream, which is missing on platforms like avr. So we had to write our own api to handle this.

Platforms

ESP32-C5 is now supported.
ESP32 WS2812 SPI driver has a fix for it's async draw routine.
Blend2d will now replace a subfx XYMap (when necessary) to prevent double mapping. A warning will be issued.
Seeed XIAO nRF52840 Sense: Fixed incorrect pin mappings that were copied from Adafruit Feather board
APA102HD Gamma Correction Algorithm: Completely rewritten with closed-form mathematical solution
- Thanks https://github.com/gwgill!
- Graph of the old algorithms quantization issues can be see here:
  - https://www.argyllcms.com/APA102_loglog.svg
STM32F1 pin mapping fixes (blue pill)
- https://github.com/FastLED/FastLED/pull/1973
- Thanks https://github.com/vishwamartur!

Internal stuff

FastLED is now way more strict in it's compiler settings. Warnings are treated as errors
- Lots of fixes, some code required amnesty.
The examples now compile under clang and run for ./test
All examples now compile for ALL platforms.
- this was a major undertaking.
- required a rewrite of the testing infrastructure.
- Teensy41 took ~ 1 hours to compile 40 examples, now it can do 80 examples in ~8 mins

Color Boost Demo
image (3)

FastLED

FastLED 3.10.2

FastLED 3.10.2

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FastLED 3.10.2

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