blur2d() [4/4]

void fl::gfx::blur2d	(	fl::span< CRGB >	leds,
		u8	width,
		u8	height,
		fract8	blur_amount,
		const XYMap &	xymap )

Two-dimensional blur filter (span version).

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	span of LEDs 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 87 of file blur.cpp.hpp.

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

References fl::blur_amount, blurColumns(), blurRows(), fl::height, leds, fl::width, and xymap.

Referenced by fl::blur2d(), fl::blur2d(), fl::blur2d(), and blur2d().

Here is the call graph for this function:

Here is the caller graph for this function: