blur2d() [2/2]

void fl::blur2d	(	CRGB *	leds,
		uint8_t	width,
		uint8_t	height,
		fract8	blur_amount,
		const fl::XYMap &	xymap )

Two-dimensional blur filter.

Spreads light to 8 XY neighbors.

• 0 = no spread at all
• 64 = moderate spreading
• 172 = maximum smooth, even spreading
• 173..255 = wider spreading, but increasing flicker

Total light is NOT entirely conserved, so many repeated calls to 'blur' will also result in the light fading, eventually all the way to black; this is by design so that it can be used to (slowly) clear the LEDs to black.

Parameters

leds	a pointer to the LED array to blur
width	the width of the matrix
height	the height of the matrix
blur_amount	the amount of blur to apply

Definition at line 71 of file blur.cpp.

                                {
    blurRows(leds, width, height, blur_amount, xymap);
    blurColumns(leds, width, height, blur_amount, xymap);
}

References blurColumns(), blurRows(), leds, and xymap.

Referenced by blur2d(), fl::Blend2d::draw(), and loop().

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