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Matrix effect speedup

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Typically, more than 50% of pixels are black. 
This optimization avoids to fade and rewrite already black pixels.
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Frank 2023-09-18 15:56:50 +02:00 committed by GitHub
parent 555dd2e726
commit 43613e3b10
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1 changed files with 1 additions and 1 deletions
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wled00/FX.cpp
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@ -5218,7 +5218,7 @@ uint16_t mode_2Dmatrix(void) { // Matrix2D. By Jeremy Williams.
if (row < rows-1) SEGMENT.setPixelColorXY(col, row+1, spawnColor); if (row < rows-1) SEGMENT.setPixelColorXY(col, row+1, spawnColor);
} else { } else {
// fade other pixels // fade other pixels
SEGMENT.setPixelColorXY(col, row, pix.nscale8(fade)); if (pix != CRGB::Black) SEGMENT.setPixelColorXY(col, row, pix.nscale8(fade)); // optimization: don't fade black pixels
} }
} }
} }