Matrix effect speedup
Typically, more than 50% of pixels are black. This optimization avoids to fade and rewrite already black pixels.
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@ -5218,7 +5218,7 @@ uint16_t mode_2Dmatrix(void) { // Matrix2D. By Jeremy Williams.
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if (row < rows-1) SEGMENT.setPixelColorXY(col, row+1, spawnColor);
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} else {
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// fade other pixels
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SEGMENT.setPixelColorXY(col, row, pix.nscale8(fade));
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if (pix != CRGB::Black) SEGMENT.setPixelColorXY(col, row, pix.nscale8(fade)); // optimization: don't fade black pixels
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}
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}
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}
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