draw()

void fl::Particles1d::Particle::draw	(	fl::span< CRGB >	leds,
		u32	now,
		u16	numLeds )

Render particle with sub-pixel accuracy and power-modulated color.

Definition at line 137 of file particles.cpp.hpp.

                                                                      {
    if (!active) return;
    float power = getPower(now);
    if (power <= 0.0f) return;
 
    // Power effects: slow down, saturate, dim
    u8 sat = baseColor.sat + (1.0f - power) * (255 - baseColor.sat);
    u8 val = baseColor.val * power;
    CRGB color = CHSV(baseColor.hue, sat, val);
 
    // Sub-pixel rendering
    int i = (int)pos;
    float frac = pos - i;
    if (i >= 0 && i < (int)numLeds)
        leds[i] += color.nscale8(255 * (1.0f - frac));
    if (i + 1 >= 0 && i + 1 < (int)numLeds && frac > 0)
        leds[i + 1] += color.nscale8(255 * frac);
}

References active, baseColor, getPower(), leds, fl::CRGB::nscale8(), and pos.

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