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2D drift improvements for large panel sizes

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speedup, accuracy improvements and enhancements:
* separated calculations in float from integer
* improved time resolution
* slow down effect on for dimensions >32
* added original "twin" option
* added customizable blur (thanks dedehai)
This commit is contained in:
Frank
2024-11-14 18:30:43 +01:00
parent 81facea82f
commit 776718b734
2 changed files with 32 additions and 13 deletions
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43
wled00/FX.cpp
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@@ -5137,6 +5137,7 @@ static const char _data_FX_MODE_2DDNASPIRAL[] PROGMEM = "DNA Spiral@Scroll speed
// 2D Drift //
/////////////////////////
uint16_t mode_2DDrift() { // By: Stepko https://editor.soulmatelights.com/gallery/884-drift , Modified by: Andrew Tuline
// optimized for large panels by @softhack007
if (!strip.isMatrix) return mode_static(); // not a 2D set-up
const uint16_t cols = SEGMENT.virtualWidth();
@@ -5147,22 +5148,40 @@ uint16_t mode_2DDrift() { // By: Stepko https://editor.soulmateli
SEGMENT.fill(BLACK);
}
SEGMENT.fadeToBlackBy(128);
if (SEGMENT.intensity > 1) SEGMENT.fadeToBlackBy(128);
else SEGMENT.fill(BLACK); // WLEDMM fill is faster than fade
const float maxDim = max(cols, rows)/2.0f;
const uint16_t maxDim = MAX(cols, rows)/2;
unsigned long t = strip.now / (32 - (SEGMENT.speed>>3));
unsigned long t_20 = t/20; // softhack007: pre-calculating this gives about 10% speedup
for (float i = 1; i < maxDim; i += 0.25) {
float angle = radians(t * (maxDim - i));
uint16_t myX = (cols>>1) + (uint16_t)(sinf(angle) * i) + (cols%2);
uint16_t myY = (rows>>1) + (uint16_t)(cosf(angle) * i) + (rows%2);
SEGMENT.setPixelColorXY(myX, myY, ColorFromPalette(SEGPALETTE, (i * 20) + t_20, 255, LINEARBLEND));
// WLEDMM calculate timebase in float, so we don't need to worry about rounding
const float strip_now = strip.now & 0x003FFFFF; // float can exactly represent numbers up to 22bit
float t;
if (maxDim < 6.0f) t = strip_now / float(16U - (SEGMENT.speed>>4)); // up to 12 (faster)
else if (maxDim <= 16.0f) t = strip_now / float(32U - (SEGMENT.speed>>3)); // 12..32 (standard)
else if (maxDim <= 32.0f) t = strip_now / float(64U - (SEGMENT.speed>>2)); // 32..64 (slower)
else t = strip_now / float(256U - SEGMENT.speed); // above 64 (slowest)
// WLEDMM pre-calculate some values to speed up the main loop
const int colsCenter = (cols >> 1) + (cols % 2);
const int rowsCenter = (rows >> 1) + (rows % 2);
unsigned t_20 = t/20.0f; // softhack007: pre-calculating this gives about 10% speedup
const float step = (maxDim < 6.0f) ? 0.52f : (maxDim > 24.0f) ? 0.16666666f : 0.25f; // WLEDMM more detail on larger panels
for (float i = 1.0f; i <= maxDim; i += step) {
unsigned i_20 = i * 20.0f;
float t_maxdim = t * (maxDim - i);
float angle = float(DEG_TO_RAD) * t_maxdim;
int mySin = sinf(angle) * i;
int myCos = cosf(angle) * i;
if ((unsigned(colsCenter+mySin) < cols) && (unsigned(rowsCenter+myCos) < rows)) // don't draw invisible pixels
SEGMENT.setPixelColorXY(colsCenter+mySin, rowsCenter+myCos, ColorFromPalette(SEGPALETTE, i_20 + t_20, 255, LINEARBLEND));
if ((SEGMENT.check1) && (unsigned(colsCenter+myCos) < cols) && (unsigned(rowsCenter+mySin) < rows))
SEGMENT.setPixelColorXY(colsCenter+myCos, rowsCenter+mySin, ColorFromPalette(SEGPALETTE, i_20 + t_20, 255, LINEARBLEND)); // twin mode
}
SEGMENT.blur(SEGMENT.intensity>>3);
SEGMENT.blur(SEGMENT.intensity>>((!SEGMENT.check2) * 3), SEGMENT.check2); // user-defined blur - thanks @dedehai
return FRAMETIME;
} // mode_2DDrift()
static const char _data_FX_MODE_2DDRIFT[] PROGMEM = "Drift@Rotation speed,Blur amount;;!;2";
static const char _data_FX_MODE_2DDRIFT[] PROGMEM = "Drift@Rotation speed,Blur,,,,Twin,Smear;;!;2;ix=0";
//////////////////////////

2
wled00/wled.h
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@@ -8,7 +8,7 @@
*/
// version code in format yymmddb (b = daily build)
#define VERSION 2411130
#define VERSION 2411140
// WLEDMM - you can check for this define in usermods, to only enabled WLEDMM specific code in the "right" fork. Its not defined in AC WLED.
#define _MoonModules_WLED_