Bugfix.

- segment off

wled00/FX_2Dfcn.cpp

@@ -164,7 +164,7 @@ void IRAM_ATTR Segment::setPixelColorXY(int x, int y, uint32_t col)
   if (leds) leds[XY(x,y)] = col;
 
   uint8_t _bri_t = currentBri(on ? opacity : 0);
-  if (!_bri_t) return;
+  if (!_bri_t && !transitional) return;
   if (_bri_t < 255) {
     byte r = scale8(R(col), _bri_t);
     byte g = scale8(G(col), _bri_t);

wled00/FX_fcn.cpp

@@ -610,7 +610,7 @@ void IRAM_ATTR Segment::setPixelColor(int i, uint32_t col)
 
   uint16_t len = length();
   uint8_t _bri_t = currentBri(on ? opacity : 0);
-  if (!_bri_t) return;
+  if (!_bri_t && !transitional) return;
   if (_bri_t < 255) {
     byte r = scale8(R(col), _bri_t);
     byte g = scale8(G(col), _bri_t);