Effect sinematrix now comes in additional variants with some more color palettes.

include/effect_sinematrix3.h

@@ -4,6 +4,12 @@
 #include "functions.h"
 #include "Effect.h"
 
+enum SinematrixColorScheme {
+    SINEMATRIX_COLOR_PASTEL_RAINBOW,
+    SINEMATRIX_COLOR_RAINBOW,
+    SINEMATRIX_COLOR_PURPLEFLY,
+};
+
 class Sinematrix3Effect : public Effect {
 private:
     double pangle = 0;
@@ -25,12 +31,14 @@ private:
     double fx = 1.0 / (LED_WIDTH / PI);
     double fy = 1.0 / (LED_HEIGHT / PI);
     Matrix rotate;
+    SinematrixColorScheme _color_scheme;
+    CRGB _get_color(int value);
 
 public:
+    Sinematrix3Effect(SinematrixColorScheme s = SINEMATRIX_COLOR_PASTEL_RAINBOW): _color_scheme(s) {};
     boolean supports_window = true;
     boolean can_be_shown_with_clock();
     boolean clock_as_mask();
     void loop(uint16_t ms);
     String get_name() override { return "sinematrix3"; }
 };
-

include/my_color_palettes.h

@@ -6,3 +6,4 @@
 
 extern const TProgmemRGBGradientPalette_byte palette_fire[] FL_PROGMEM;
 extern const TProgmemRGBGradientPalette_byte palette_matrix[] FL_PROGMEM;
+extern const TProgmemRGBGradientPalette_byte palette_purplefly_gp[] FL_PROGMEM;

src/color_palettes.cpp

@@ -9,3 +9,14 @@ __attribute__ ((aligned(4))) extern const TProgmemRGBGradientPalette_byte palett
 __attribute__ ((aligned(4))) extern const TProgmemRGBGradientPalette_byte palette_matrix[] FL_PROGMEM = {
     0,       0,  0,  0,   // black
     255,     0,255,  0 }; // green
+
+// Gradient palette "purplefly_gp", originally from
+// http://soliton.vm.bytemark.co.uk/pub/cpt-city/rc/tn/purplefly.png.index.html
+// converted for FastLED with gammas (2.6, 2.2, 2.5)
+// Size: 16 bytes of program space.
+
+__attribute__ ((aligned(4))) extern const TProgmemRGBGradientPalette_byte palette_purplefly_gp[] FL_PROGMEM = {
+    0,   0,  0,  0,
+   63, 239,  0,122,
+  191, 252,255, 78,
+  255,   0,  0,  0};

src/effect_sinematrix3.cpp

@@ -2,9 +2,9 @@
 #include "prototypes.h"
 #include "functions.h"
 #include "Effect.h"
+#include "my_color_palettes.h"
 
 boolean Sinematrix3Effect::can_be_shown_with_clock() { return true; };
-boolean Sinematrix3Effect::clock_as_mask() { return true; };
 void Sinematrix3Effect::loop(uint16_t ms) {
     pangle = addmodpi( pangle, 0.0133 + (angle / 256) );
     angle = cos(pangle) * PI;
@@ -44,8 +44,22 @@ void Sinematrix3Effect::loop(uint16_t ms) {
         for ( int y = 0; y < LED_HEIGHT; y++ ) {
             Vector c = add(multiply( multiply(rotate, zoom), { .x1 = x - rcx, .x2 = y - rcy } ), translate);
             int sat = (basecol + basefield(c.x1, c.x2)) * 255;
-            CRGB color(CHSV(sat, 120, 255));
+            CRGB color(_get_color(sat));
-            window->setPixel(x, y, &color);
+			window->setPixel(x, y, &color);
         }
     }
 }
+
+CRGB Sinematrix3Effect::_get_color(int sat) {
+    switch(_color_scheme) {
+        case SINEMATRIX_COLOR_PASTEL_RAINBOW: return CRGB(CHSV(sat, 120, 255));
+        case SINEMATRIX_COLOR_RAINBOW: return CRGB(CHSV(sat, 255, 255));
+		case SINEMATRIX_COLOR_PURPLEFLY: return ColorFromPalette((CRGBPalette16)palette_purplefly_gp, (uint8_t)sat);
+    }
+	return CRGB(0xFF00FF);
+}
+
+boolean Sinematrix3Effect::clock_as_mask() {
+	if (_color_scheme == SINEMATRIX_COLOR_PASTEL_RAINBOW) return true;
+	return false;
+};

src/effects.cpp

@@ -55,8 +55,11 @@ const EffectEntry effects[] = {
 	/* 23 */ {"marquee",           0,     [](){ return new MarqueeEffect(); }},
 	/* 24 */ {"night_clock",       false, [](){ return new NightClockEffect(); }},
 	/* 25 */ {"tv_static",         false, [](){ return new TvStaticEffect(); }},
+	/* 26 */ {"sinematrix3_rainbow", true,[](){ return new Sinematrix3Effect(SINEMATRIX_COLOR_RAINBOW); }},
+	/* 27 */ {"sinematrix3_purplefly", true,[](){ return new Sinematrix3Effect(SINEMATRIX_COLOR_PURPLEFLY); }},
+
 };
-const uint8_t effects_size = 26;
+const uint8_t effects_size = 28;
 
 
 Effect* select_effect(const char* name) {