60 lines
2.1 KiB
Markdown
60 lines
2.1 KiB
Markdown
# Dynamic Underglow Lighting Per-Layer
|
|
|
|
This bit of code allows you to define layer lighting that respects your current eeprom settings, e.g., brightness. It does this by storing the base state rgb
|
|
|
|
## Setup
|
|
|
|
1. Enable RGB underglow in your `rules.mk`
|
|
|
|
```
|
|
RGBLIGHT_ENABLE = yes # Enable keyboard RGB underglow
|
|
```
|
|
|
|
2. (Optional) Add RGB configuration to your `config.h`
|
|
|
|
```
|
|
#ifdef RGBLIGHT_ENABLE
|
|
# define RGBLIGHT_HUE_STEP 8
|
|
# define RGBLIGHT_SAT_STEP 16
|
|
# define RGBLIGHT_VAL_STEP 16
|
|
# define RGBLIGHT_LIMIT_VAL 150
|
|
# define RGBLIGHT_SLEEP
|
|
// # define RGBLIGHT_LAYERS
|
|
#endif
|
|
```
|
|
|
|
3. Add `set_layer_hsv` function. This is where you define your layer-specific colors by setting the HSV properties on the `layer_color` pointer. This example uses the QMK RGB configuration parameters to keep the layer colors offset based on the current EEPROM HSV.
|
|
|
|
> NOTE: The HSV values should be between 0 and 255, but setting the modulus on saturation causes the lights to go white on my board. I _think_ this is due to overflow, but I haven't had the chance to try and resolve it yet.
|
|
|
|
|
|
```
|
|
#ifdef RGBLIGHT_ENABLE
|
|
void set_layer_hsv(layer_state_t state, HSV* layer_color) {
|
|
int32_t h = layer_color->h, s = layer_color->s, v = layer_color->v;
|
|
switch (get_highest_layer(state)) {
|
|
case _RAISE:
|
|
h += 2 * RGBLIGHT_HUE_STEP;
|
|
break;
|
|
case _LOWER:
|
|
h += -2 * RGBLIGHT_HUE_STEP;
|
|
break;
|
|
case _NAV:
|
|
h += 1 * RGBLIGHT_HUE_STEP;
|
|
break;
|
|
case _MOUSE:
|
|
h += -7 * RGBLIGHT_HUE_STEP;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
layer_color->h = h % 255;
|
|
layer_color->s = s;
|
|
layer_color->v = v % 255;
|
|
return;
|
|
}
|
|
#endif
|
|
```
|
|
|
|
4. (Optional) If you're using `post_process_record_user`, you'll need to change the name in your keymap to `post_process_record_keymap`. We use the user function to update the HSV state after one of the RGB keycodes is pressed.
|