Jan/WLED_MM_Infinity
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Disable original for now

Browse Source
This commit is contained in:
Will Tatam
2023-05-23 15:41:13 +01:00
parent b397fb5470
commit 3682501eec
1 changed files with 305 additions and 502 deletions
Download Patch File Download Diff File Expand all files Collapse all files

869
usermods/usermod_v2_animartrix/usermod_v2_animartrix.h
View File

@@ -21,598 +21,401 @@
//based on: https://gist.github.com/StefanPetrick/9c091d9a28a902af5a7b540e40442c64 //based on: https://gist.github.com/StefanPetrick/9c091d9a28a902af5a7b540e40442c64
class AnimartrixCore { // class AnimartrixCore:public ANIMartRIX {
private: // private:
public: // public:
float runtime; // elapse ms since startup // float runtime; // elapse ms since startup
float newdist, newangle; // parameters for image reconstruction // // float newdist, newangle; // parameters for image reconstruction
float z; // 3rd dimension for the 3d noise function // // float z; // 3rd dimension for the 3d noise function
float offset_x, offset_y; // wanna shift the cartesians during runtime? // // float offset_x, offset_y; // wanna shift the cartesians during runtime?
float scale_x, scale_y; // cartesian scaling in 2 dimensions // // float scale_x, scale_y; // cartesian scaling in 2 dimensions
float dist, angle; // the actual polar coordinates // // float dist, angle; // the actual polar coordinates
// // int x, y; // the cartesian coordiantes
// // int num_x;// = WIDTH; // horizontal pixel count
// // int num_y;// = HEIGHT; // vertical pixel count
// float center_x;// = (num_x / 2) - 0.5; // the reference point for polar coordinates
// float center_y;// = (num_y / 2) - 0.5; // (can also be outside of the actual xy matrix)
// // //float center_x = 20; // the reference point for polar coordinates
// // //float center_y = 20;
// // //WLEDMM: assign 32x32 fixed for the time being
// // float theta [60] [32]; // look-up table for all angles WLEDMM: 60x32 to support WLED Effects ledmaps
// // float distance[60] [32]; // look-up table for all distances
// // // std::vector<std::vector<float>> theta; // look-up table for all angles
// // // std::vector<std::vector<float>> distance; // look-up table for all distances
// // // std::vector<std::vector<float>> vignette;
// // // std::vector<std::vector<float>> inverse_vignette;
// // float spd; // can be used for animation speed manipulation during runtime
int x, y; // the cartesian coordiantes // // float show1, show2, show3, show4, show5; // to save the rendered values of all animation layers
int num_x;// = WIDTH; // horizontal pixel count // // float red, green, blue; // for the final RGB results after the colormapping
int num_y;// = HEIGHT; // vertical pixel count
// // float c, d, e, f; // factors for oscillators
// // float linear_c, linear_d, linear_e, linear_f; // linear offsets
// // float angle_c, angle_d, angle_e, angle_f; // angle offsets
// // float noise_angle_c, noise_angle_d, noise_angle_e, noise_angle_f; // angles based on linear noise travel
// // float dir_c, dir_d, dir_e, dir_f; // direction multiplicators
float center_x;// = (num_x / 2) - 0.5; // the reference point for polar coordinates // AnimartrixCore() {
float center_y;// = (num_y / 2) - 0.5; // (can also be outside of the actual xy matrix) // USER_PRINTLN("AnimartrixCore constructor");
//float center_x = 20; // the reference point for polar coordinates // }
//float center_y = 20; // ~AnimartrixCore() {
// USER_PRINTLN("AnimartrixCore destructor");
// }
// void init() {
// num_x = SEGMENT.virtualWidth(); // horizontal pixel count
// num_y = SEGMENT.virtualHeight(); // vertical pixel count
// center_x = (num_x / 2) - 0.5; // the reference point for polar coordinates
// center_y = (num_y / 2) - 0.5; // (can also be outside of the actual xy matrix)
// //allocate memory for the 2D arrays
// // theta.resize(num_x, std::vector<float>(num_y, 0));
// // distance.resize(num_x, std::vector<float>(num_y, 0));
// // vignette.resize(num_x, std::vector<float>(num_y, 0));
// // inverse_vignette.resize(num_x, std::vector<float>(num_y, 0));
//WLEDMM: assign 32x32 fixed for the time being // render_polar_lookup_table(center_x, center_y); // precalculate all polar coordinates
float theta [60] [32]; // look-up table for all angles WLEDMM: 60x32 to support WLED Effects ledmaps // // to improve the framerate
float distance[60] [32]; // look-up table for all distances // }
// std::vector<std::vector<float>> theta; // look-up table for all angles
// std::vector<std::vector<float>> distance; // look-up table for all distances
// std::vector<std::vector<float>> vignette;
// std::vector<std::vector<float>> inverse_vignette;
float spd; // can be used for animation speed manipulation during runtime
float show1, show2, show3, show4, show5; // to save the rendered values of all animation layers // void write_pixel_to_framebuffer(int x, int y, rgb &pixel) {
float red, green, blue; // for the final RGB results after the colormapping // // the final color values shall not exceed 255 (to avoid flickering pixels caused by >255 = black...)
// // negative values * -1
float c, d, e, f; // factors for oscillators
float linear_c, linear_d, linear_e, linear_f; // linear offsets
float angle_c, angle_d, angle_e, angle_f; // angle offsets
float noise_angle_c, noise_angle_d, noise_angle_e, noise_angle_f; // angles based on linear noise travel
float dir_c, dir_d, dir_e, dir_f; // direction multiplicators
AnimartrixCore() { // rgb_sanity_check(pixel);
USER_PRINTLN("AnimartrixCore constructor");
}
~AnimartrixCore() {
USER_PRINTLN("AnimartrixCore destructor");
}
void init() { // CRGB finalcolor = CRGB(pixel.red, pixel.green, pixel.blue);
num_x = SEGMENT.virtualWidth(); // horizontal pixel count
num_y = SEGMENT.virtualHeight(); // vertical pixel count
center_x = (num_x / 2) - 0.5; // the reference point for polar coordinates
center_y = (num_y / 2) - 0.5; // (can also be outside of the actual xy matrix)
//allocate memory for the 2D arrays // // write the rendered pixel into the framebutter
// theta.resize(num_x, std::vector<float>(num_y, 0)); // SEGMENT.setPixelColorXY(x,y,finalcolor);
// distance.resize(num_x, std::vector<float>(num_y, 0)); // }
// vignette.resize(num_x, std::vector<float>(num_y, 0));
// inverse_vignette.resize(num_x, std::vector<float>(num_y, 0));
render_polar_lookup_table(); // precalculate all polar coordinates // // Show the current framerate & rendered pixels per second in the serial monitor.
// to improve the framerate
}
void calculate_oscillators() { // void report_performance() {
runtime = millis(); // save elapsed ms since start up // int fps = FastLED.getFPS(); // frames per second
// int kpps = (fps * SEGMENT.virtualLength()) / 1000; // kilopixel per second
runtime = runtime * spd; // global anaimation speed // USER_PRINT(kpps); USER_PRINT(" kpps ... ");
// USER_PRINT(fps); USER_PRINT(" fps @ ");
// USER_PRINT(SEGMENT.virtualLength()); USER_PRINTLN(" LEDs ");
// }
// };
// class PolarBasics:public AnimartrixCore {
// private:
// public:
// // Background for setting the following 2 numbers: the FastLED inoise16() function returns
// // raw values ranging from 0-65535. In order to improve contrast we filter this output and
// // stretch the remains. In histogram (photography) terms this means setting a blackpoint and
// // a whitepoint. low_limit MUST be smaller than high_limit.
// uint16_t low_limit = 30000; // everything lower drawns in black
// // higher numer = more black & more contrast present
// uint16_t high_limit = 50000; // everything higher gets maximum brightness & bleeds out
// // lower number = the result will be more bright & shiny
// // float vignette[60] [32];
// // float inverse_vignette[60] [32];
// PolarBasics() {
// USER_PRINTLN("constructor");
// }
// ~PolarBasics() {
// USER_PRINTLN("destructor");
// }
// // void speedratiosAndOscillators() {
// // // set speedratios for the offsets & oscillators
// // spd = 0.05 ;
// // c = 0.013 ;
// // d = 0.017 ;
// // e = 0.2 ;
// // f = 0.007 ;
// // low_limit = 30000;
// // high_limit = 50000;
// // calculate_oscillators(); // get linear offsets and oscillators going
// // }
// void forLoop() {
// // ...and now let's generate a frame
// for (int x = 0; x < num_x; x++) {
// for (int y = 0; y < num_y; y++) {
// // pick polar coordinates from look the up table
// dist = distance [x] [y];
// angle = theta [y] [x];
// // Generation of one layer. Explore the parameters and what they do.
// scale_x = 10000; // smaller value = zoom in, bigger structures, less detail
// scale_y = 10000; // higher = zoom out, more pixelated, more detail
// z = linear_c * SEGMENT.custom3; // must be >= 0
// newangle = 5*SEGMENT.intensity/255 * angle + angle_c - 3 * SEGMENT.speed/255 * (dist/10*dir_c);
// newdist = dist;
// offset_x = SEGMENT.custom1; // must be >=0
// offset_y = SEGMENT.custom2; // must be >=0
// show1 = render_pixel();
// // newangle = 5*SEGMENT.intensity/255 * angle + angle_d - 3 * SEGMENT.speed/255 * (dist/10*dir_d);
// // z = linear_d * SEGMENT.custom3; // must be >= 0
// // show2 = render_pixel();
// // newangle = 5*SEGMENT.intensity/255 * angle + angle_e - 3 * SEGMENT.speed/255 * (dist/10*dir_e);
// // z = linear_e * SEGMENT.custom3; // must be >= 0
// // show3 = render_pixel();
// // Colormapping - Assign rendered values to colors
// rgb pixel;
// pixel.red = show1;
// pixel.green = show2;
// pixel.blue = show3;
// // Check the final results.
// // Discard faulty RGB values & write the valid results into the framebuffer.
// write_pixel_to_framebuffer(x, y, pixel);
// }
// }
// }
// };
// // Circular Blobs
// //
// // VO.2 preview version
// // by Stefan Petrick 2023
// // This code is licenced under a
// // Creative Commons Attribution
// // License CC BY-NC 3.0
// //
// // In order to run this on your own setup you might want to check and change
// // line 22 & 23 according to your matrix size and
// // line 75 to suit your LED interface type.
// //
// // In case you want to run this code on a different LED driver library
// // (like SmartMatrix, OctoWS2812, ESP32 16x parallel output) you will need to change
// // line 52 to your own framebuffer and line 276+279 to your own setcolor function.
// // In line 154 the framebuffer gets pushed to the LEDs.
// // The whole report_performance function you can just comment out. It gets called
// // in line 157.
// //
// // With this adaptions it should be easy to use this code with
// // any given LED driver & interface you might prefer.
// //based on https://gist.github.com/StefanPetrick/35ffd8467df22a77067545cfb889aa4f
// //and Fastled podcast nr 3: https://www.youtube.com/watch?v=3tfjP7GJnZo
// class CircularBlobs:public AnimartrixCore {
// private:
// float fade(float t){ return t * t * t * (t * (t * 6 - 15) + 10); }
// float lerp(float t, float a, float b){ return a + t * (b - a); }
// float grad(int hash, float x, float y, float z)
// {
// int h = hash & 15; /* CONVERT LO 4 BITS OF HASH CODE */
// float u = h < 8 ? x : y, /* INTO 12 GRADIENT DIRECTIONS. */
// v = h < 4 ? y : h==12||h==14 ? x : z;
// return ((h&1) == 0 ? u : -u) + ((h&2) == 0 ? v : -v);
// }
// #define P(x) p[(x) & 255]
// float pnoise(float x, float y, float z) {
// int X = (int)floorf(x) & 255, /* FIND UNIT CUBE THAT */
// Y = (int)floorf(y) & 255, /* CONTAINS POINT. */
// Z = (int)floorf(z) & 255;
// x -= floorf(x); /* FIND RELATIVE X,Y,Z */
// y -= floorf(y); /* OF POINT IN CUBE. */
// z -= floorf(z);
// float u = fade(x), /* COMPUTE FADE CURVES */
// v = fade(y), /* FOR EACH OF X,Y,Z. */
// w = fade(z);
// int A = P(X)+Y,
// AA = P(A)+Z,
// AB = P(A+1)+Z, /* HASH COORDINATES OF */
// B = P(X+1)+Y,
// BA = P(B)+Z,
// BB = P(B+1)+Z; /* THE 8 CUBE CORNERS, */
// return lerp(w,lerp(v,lerp(u, grad(P(AA ), x, y, z), /* AND ADD */
// grad(P(BA ), x-1, y, z)), /* BLENDED */
// lerp(u, grad(P(AB ), x, y-1, z), /* RESULTS */
// grad(P(BB ), x-1, y-1, z))), /* FROM 8 */
// lerp(v, lerp(u, grad(P(AA+1), x, y, z-1), /* CORNERS */
// grad(P(BA+1), x-1, y, z-1)), /* OF CUBE */
// lerp(u, grad(P(AB+1), x, y-1, z-1),
// grad(P(BB+1), x-1, y-1, z-1))));
// }
// public:
// // Background for setting the following 2 numbers: the pnoise() function returns
// // raw values ranging from -1 to +1. In order to improve contrast we filter this output and
// // stretch the remains. In histogram (photography) terms this means setting a blackpoint and
// // a whitepoint. low_limit MUST be smaller than high_limit.
// float low_limit = 0; // everything lower drawns in black
// // higher numer = more black & more contrast present
// float high_limit = 0.5; // everything higher gets maximum brightness & bleeds out
// // lower number = the result will be more bright & shiny
// float offset_z; // wanna shift the cartesians during runtime?
// float scale_z; // cartesian scaling in 3 dimensions
// // void speedratiosAndOscillators() {
// // // set speedratios for the offsets & oscillators
// // spd = 0.001 ; // higher = faster
// // c = 0.05 ;
// // d = 0.07 ;
// // e = 0.09 ;
// // f = 0.01 ;
linear_c = runtime * c; // some linear rising offsets 0 to max // // low_limit = 0;
linear_d = runtime * d; // // high_limit = 0.5;
linear_e = runtime * e;
linear_f = runtime * f;
angle_c = fmodf(linear_c, 2 * PI); // some cyclic angle offsets 0 to 2*PI // // calculate_oscillators(); // get linear offsets and oscillators going
angle_d = fmodf(linear_d, 2 * PI); // // }
angle_e = fmodf(linear_e, 2 * PI);
angle_f = fmodf(linear_f, 2 * PI);
dir_c = sinf(angle_c); // some direction oscillators -1 to 1 // void forLoop() {
dir_d = sinf(angle_d); // // ...and now let's generate a frame
dir_e = sinf(angle_e);
dir_f = sinf(angle_f);
}
// given a static polar origin we can precalculate // for (int x = 0; x < num_x; x++) {
// all the (expensive) polar coordinates // for (int y = 0; y < num_y; y++) {
void render_polar_lookup_table() { // dist = distance[x][y]; // pick precalculated polar data
// angle = theta[x][y];
for (int xx = 0; xx < num_x; xx++) { // // define first animation layer
for (int yy = 0; yy < num_y; yy++) { // scale_x = 0.11; // smaller value = zoom in
// scale_y = 0.1; // higher = zoom out
// scale_z = 0.1;
float dx = xx - center_x; // newangle = angle + 5*SEGMENT.speed/255 * noise_angle_c + 5*SEGMENT.speed/255 * noise_angle_f;
float dy = yy - center_y; // newdist = 5*SEGMENT.intensity/255 * dist;
// offset_z = linear_c * 100;
// z = -5 * sqrtf(dist) ;
// show1 = render_pixel_faster();
distance[xx] [yy] = hypotf(dx, dy); // // repeat for the 2nd layer, every parameter you don't change stays as it was set
theta[xx] [yy] = atan2f(dy, dx); // // in the previous layer.
} // offset_z = linear_d * 100;
} // newangle = angle + 5*SEGMENT.speed/255 * noise_angle_d + 5*SEGMENT.speed/255 * noise_angle_f;
} // show2 = render_pixel_faster();
// float mapping maintaining 32 bit precision // // 3d layer
// we keep values with high resolution for potential later usage
float map_float(float x, float in_min, float in_max, float out_min, float out_max) { // offset_z = linear_e*100;
// newangle = angle + 5*SEGMENT.speed/255 * noise_angle_e + 5*SEGMENT.speed/255 * noise_angle_f;
// show3 = render_pixel_faster();
float result = (x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min; // // create some interference between the layers
if (result < out_min) result = out_min;
if( result > out_max) result = out_max;
return result; // show3 = show3-show2-show1;
} // if (show3 < 0) show3 = 0;
// Avoid any possible color flicker by forcing the raw RGB values to be 0-255. // // Colormapping - Assign rendered values to colors
// This enables to play freely with random equations for the colormapping
// without causing flicker by accidentally missing the valid target range.
void rgb_sanity_check() { // rgb pixel;
// rescue data if possible: when negative return absolute value // pixel.red = show1-show2/2;
if (red < 0) red = abs(red); // if (pixel.red < 0) pixel.red=0;
if (green < 0) green = abs(green); // pixel.green = (show1-show2)/2;
if (blue < 0) blue = abs(blue); // if (pixel.green < 0) pixel.green=0;
// pixel.blue = show3-show1/2;
// if (pixel.blue < 0) pixel.blue=0;
// discard everything above the valid 0-255 range // // Check the final results and store them.
if (red > 255) red = 255; // // Discard faulty RGB values & write the remaining valid results into the framebuffer.
if (green > 255) green = 255;
if (blue > 255) blue = 255;
}
void write_pixel_to_framebuffer() { // write_pixel_to_framebuffer(x, y, pixel);
// the final color values shall not exceed 255 (to avoid flickering pixels caused by >255 = black...) // }
// negative values * -1 // }
// }
rgb_sanity_check();
CRGB finalcolor = CRGB(red, green, blue); // };
// write the rendered pixel into the framebutter // //effect functions
SEGMENT.setPixelColorXY(x,y,finalcolor); // uint16_t mode_PolarBasics(void) {
}
// Show the current framerate & rendered pixels per second in the serial monitor. // PolarBasics* spe;
void report_performance() {
int fps = FastLED.getFPS(); // frames per second // if(!SEGENV.allocateData(sizeof(PolarBasics))) {SEGMENT.fill(SEGCOLOR(0)); return 350;} //mode_static(); //allocation failed
int kpps = (fps * SEGMENT.virtualLength()) / 1000; // kilopixel per second
USER_PRINT(kpps); USER_PRINT(" kpps ... "); // spe = reinterpret_cast<PolarBasics*>(SEGENV.data);
USER_PRINT(fps); USER_PRINT(" fps @ ");
USER_PRINT(SEGMENT.virtualLength()); USER_PRINTLN(" LEDs ");
} // //first time init
}; // if (SEGENV.call == 0) {
class PolarBasics:public AnimartrixCore { // USER_PRINTF("mode_PolarBasics %d\n", sizeof(PolarBasics));
private: // // if (SEGENV.call == 0) SEGMENT.setUpLeds();
public: // spe->init();
// Background for setting the following 2 numbers: the FastLED inoise16() function returns
// raw values ranging from 0-65535. In order to improve contrast we filter this output and
// stretch the remains. In histogram (photography) terms this means setting a blackpoint and
// a whitepoint. low_limit MUST be smaller than high_limit.
uint16_t low_limit = 30000; // everything lower drawns in black // // spe->render_vignette_table(9.5); // the number is the desired radius in pixel
// higher numer = more black & more contrast present // // WIDTH/2 generates a circle
uint16_t high_limit = 50000; // everything higher gets maximum brightness & bleeds out // }
// lower number = the result will be more bright & shiny
// float vignette[60] [32]; // // spe->speedratiosAndOscillators();
// float inverse_vignette[60] [32];
PolarBasics() { // spe->forLoop();
USER_PRINTLN("constructor");
}
~PolarBasics() {
USER_PRINTLN("destructor");
}
void speedratiosAndOscillators() { // // FastLED.show();
// set speedratios for the offsets & oscillators
spd = 0.05 ; // // EVERY_N_MILLIS(500) spe->report_performance();
c = 0.013 ;
d = 0.017 ;
e = 0.2 ;
f = 0.007 ;
low_limit = 30000; // return FRAMETIME;
high_limit = 50000; // }
// static const char _data_FX_mode_PolarBasics[] PROGMEM = "💡Polar Basics ☾@AngleDist,AngleMult;;!;2;sx=0,ix=51,c1=0,c2=0,c3=0";
calculate_oscillators(); // get linear offsets and oscillators going
}
void forLoop() { // uint16_t mode_CircularBlobs(void) {
// ...and now let's generate a frame // CircularBlobs* spe;
for (x = 0; x < num_x; x++) {
for (y = 0; y < num_y; y++) {
// pick polar coordinates from look the up table
dist = distance [x] [y]; // if(!SEGENV.allocateData(sizeof(CircularBlobs))) {SEGMENT.fill(SEGCOLOR(0)); return 350;} //mode_static(); //allocation failed
angle = theta [y] [x];
// Generation of one layer. Explore the parameters and what they do. // spe = reinterpret_cast<CircularBlobs*>(SEGENV.data);
scale_x = 10000; // smaller value = zoom in, bigger structures, less detail // //first time init
scale_y = 10000; // higher = zoom out, more pixelated, more detail // if (SEGENV.call == 0) {
z = linear_c * SEGMENT.custom3; // must be >= 0
newangle = 5*SEGMENT.intensity/255 * angle + angle_c - 3 * SEGMENT.speed/255 * (dist/10*dir_c);
newdist = dist;
offset_x = SEGMENT.custom1; // must be >=0
offset_y = SEGMENT.custom2; // must be >=0
show1 = render_pixel(); // USER_PRINTF("mode_CircularBlobs %d\n", sizeof(CircularBlobs));
// // if (SEGENV.call == 0) SEGMENT.setUpLeds();
// newangle = 5*SEGMENT.intensity/255 * angle + angle_d - 3 * SEGMENT.speed/255 * (dist/10*dir_d); // spe->init();
// z = linear_d * SEGMENT.custom3; // must be >= 0
// show2 = render_pixel();
// newangle = 5*SEGMENT.intensity/255 * angle + angle_e - 3 * SEGMENT.speed/255 * (dist/10*dir_e); // }
// z = linear_e * SEGMENT.custom3; // must be >= 0
// show3 = render_pixel();
// Colormapping - Assign rendered values to colors // // spe->speedratiosAndOscillators();
red = show1; // spe->forLoop();
green = show2;
blue = show3;
// Check the final results. // // FastLED.show();
// Discard faulty RGB values & write the valid results into the framebuffer.
write_pixel_to_framebuffer(); // // EVERY_N_MILLIS(500) spe->report_performance();
}
}
}
void calculate_oscillators() {
AnimartrixCore::calculate_oscillators();
uint16_t noi;
noi = inoise16(10000 + linear_c * 100000); // some noise controlled angular offsets
noise_angle_c = map_float(noi, 0, 65535 , 0, 4*PI);
noi = inoise16(20000 + linear_d * 100000);
noise_angle_d = map_float(noi, 0, 65535 , 0, 4*PI);
noi = inoise16(30000 + linear_e * 100000);
noise_angle_e = map_float(noi, 0, 65535 , 0, 4*PI);
noi = inoise16(40000 + linear_f * 100000);
noise_angle_f = map_float(noi, 0, 65535 , 0, 4*PI);
}
// convert polar coordinates back to cartesian
// & render noise value there
float render_pixel() {
// convert polar coordinates back to cartesian ones
float newx = (offset_x + center_x - (cosf(newangle) * newdist)) * scale_x;
float newy = (offset_y + center_y - (sinf(newangle) * newdist)) * scale_y;
// render noisevalue at this new cartesian point
uint16_t raw_noise_field_value = inoise16(newx, newy, z);
// a lot is happening here, namely
// A) enhance histogram (improve contrast) by setting the black and white point
// B) scale the result to a 0-255 range
// it's the contrast boosting & the "colormapping" (technically brightness mapping)
if (raw_noise_field_value < low_limit) raw_noise_field_value = low_limit;
if (raw_noise_field_value > high_limit) raw_noise_field_value = high_limit;
float scaled_noise_value = map_float(raw_noise_field_value, low_limit, high_limit, 0, 255);
return scaled_noise_value;
// done, we've just rendered one color value for one single pixel
}
// // precalculate a radial brightness mask
// void render_vignette_table(float filter_radius) {
// for (int xx = 0; xx < num_x; xx++) {
// for (int yy = 0; yy < num_y; yy++) {
// vignette[xx] [yy] = (filter_radius - distance[xx] [yy]) / filter_radius;
// if (vignette[xx] [yy] < 0) vignette[xx] [yy] = 0;
// }
// }
// }
};
/*
Ken Perlins improved noise - http://mrl.nyu.edu/~perlin/noise/
C-port: http://www.fundza.com/c4serious/noise/perlin/perlin.html
by Malcolm Kesson; arduino port by Peter Chiochetti, Sep 2007 :
- make permutation constant byte, obsoletes init(), lookup % 256
*/
static const byte p[] = { 151,160,137,91,90, 15,131, 13,201,95,96,
53,194,233, 7,225,140,36,103,30,69,142, 8,99,37,240,21,10,23,190, 6,
148,247,120,234,75, 0,26,197,62,94,252,219,203,117, 35,11,32,57,177,
33,88,237,149,56,87,174,20,125,136,171,168,68,175,74,165,71,134,139,
48,27,166, 77,146,158,231,83,111,229,122, 60,211,133,230,220,105,92,
41,55,46,245,40,244,102,143,54,65,25,63,161, 1,216,80,73,209,76,132,
187,208, 89, 18,169,200,196,135,130,116,188,159, 86,164,100,109,198,
173,186, 3,64,52,217,226,250,124,123,5,202,38,147,118,126,255,82,85,
212,207,206, 59,227, 47,16,58,17,182,189, 28,42,223,183,170,213,119,
248,152,2,44,154,163,70,221,153,101,155,167,43,172, 9,129,22,39,253,
19,98,108,110,79,113,224,232,178,185,112,104,218,246, 97,228,251,34,
242,193,238,210,144,12,191,179,162,241,81,51,145,235,249,14,239,107,
49,192,214, 31,181,199,106,157,184, 84,204,176,115,121,50,45,127, 4,
150,254,138,236,205, 93,222,114, 67,29,24, 72,243,141,128,195,78,66,
215,61,156,180
};
// Circular Blobs
//
// VO.2 preview version
// by Stefan Petrick 2023
// This code is licenced under a
// Creative Commons Attribution
// License CC BY-NC 3.0
//
// In order to run this on your own setup you might want to check and change
// line 22 & 23 according to your matrix size and
// line 75 to suit your LED interface type.
//
// In case you want to run this code on a different LED driver library
// (like SmartMatrix, OctoWS2812, ESP32 16x parallel output) you will need to change
// line 52 to your own framebuffer and line 276+279 to your own setcolor function.
// In line 154 the framebuffer gets pushed to the LEDs.
// The whole report_performance function you can just comment out. It gets called
// in line 157.
//
// With this adaptions it should be easy to use this code with
// any given LED driver & interface you might prefer.
//based on https://gist.github.com/StefanPetrick/35ffd8467df22a77067545cfb889aa4f
//and Fastled podcast nr 3: https://www.youtube.com/watch?v=3tfjP7GJnZo
class CircularBlobs:public AnimartrixCore {
private:
float fade(float t){ return t * t * t * (t * (t * 6 - 15) + 10); }
float lerp(float t, float a, float b){ return a + t * (b - a); }
float grad(int hash, float x, float y, float z)
{
int h = hash & 15; /* CONVERT LO 4 BITS OF HASH CODE */
float u = h < 8 ? x : y, /* INTO 12 GRADIENT DIRECTIONS. */
v = h < 4 ? y : h==12||h==14 ? x : z;
return ((h&1) == 0 ? u : -u) + ((h&2) == 0 ? v : -v);
}
#define P(x) p[(x) & 255]
float pnoise(float x, float y, float z) {
int X = (int)floorf(x) & 255, /* FIND UNIT CUBE THAT */
Y = (int)floorf(y) & 255, /* CONTAINS POINT. */
Z = (int)floorf(z) & 255;
x -= floorf(x); /* FIND RELATIVE X,Y,Z */
y -= floorf(y); /* OF POINT IN CUBE. */
z -= floorf(z);
float u = fade(x), /* COMPUTE FADE CURVES */
v = fade(y), /* FOR EACH OF X,Y,Z. */
w = fade(z);
int A = P(X)+Y,
AA = P(A)+Z,
AB = P(A+1)+Z, /* HASH COORDINATES OF */
B = P(X+1)+Y,
BA = P(B)+Z,
BB = P(B+1)+Z; /* THE 8 CUBE CORNERS, */
return lerp(w,lerp(v,lerp(u, grad(P(AA ), x, y, z), /* AND ADD */
grad(P(BA ), x-1, y, z)), /* BLENDED */
lerp(u, grad(P(AB ), x, y-1, z), /* RESULTS */
grad(P(BB ), x-1, y-1, z))), /* FROM 8 */
lerp(v, lerp(u, grad(P(AA+1), x, y, z-1), /* CORNERS */
grad(P(BA+1), x-1, y, z-1)), /* OF CUBE */
lerp(u, grad(P(AB+1), x, y-1, z-1),
grad(P(BB+1), x-1, y-1, z-1))));
}
public:
// Background for setting the following 2 numbers: the pnoise() function returns
// raw values ranging from -1 to +1. In order to improve contrast we filter this output and
// stretch the remains. In histogram (photography) terms this means setting a blackpoint and
// a whitepoint. low_limit MUST be smaller than high_limit.
float low_limit = 0; // everything lower drawns in black
// higher numer = more black & more contrast present
float high_limit = 0.5; // everything higher gets maximum brightness & bleeds out
// lower number = the result will be more bright & shiny
float offset_z; // wanna shift the cartesians during runtime?
float scale_z; // cartesian scaling in 3 dimensions
void speedratiosAndOscillators() {
// set speedratios for the offsets & oscillators
spd = 0.001 ; // higher = faster
c = 0.05 ;
d = 0.07 ;
e = 0.09 ;
f = 0.01 ;
low_limit = 0;
high_limit = 0.5;
calculate_oscillators(); // get linear offsets and oscillators going
}
void forLoop() {
// ...and now let's generate a frame
for (x = 0; x < num_x; x++) {
for (y = 0; y < num_y; y++) {
dist = distance[x][y]; // pick precalculated polar data
angle = theta[x][y];
// define first animation layer
scale_x = 0.11; // smaller value = zoom in
scale_y = 0.1; // higher = zoom out
scale_z = 0.1;
newangle = angle + 5*SEGMENT.speed/255 * noise_angle_c + 5*SEGMENT.speed/255 * noise_angle_f;
newdist = 5*SEGMENT.intensity/255 * dist;
offset_z = linear_c * 100;
z = -5 * sqrtf(dist) ;
show1 = render_pixel_faster();
// repeat for the 2nd layer, every parameter you don't change stays as it was set // return FRAMETIME;
// in the previous layer. // }
offset_z = linear_d * 100;
newangle = angle + 5*SEGMENT.speed/255 * noise_angle_d + 5*SEGMENT.speed/255 * noise_angle_f;
show2 = render_pixel_faster();
// 3d layer
offset_z = linear_e*100;
newangle = angle + 5*SEGMENT.speed/255 * noise_angle_e + 5*SEGMENT.speed/255 * noise_angle_f;
show3 = render_pixel_faster();
// create some interference between the layers
show3 = show3-show2-show1;
if (show3 < 0) show3 = 0;
// Colormapping - Assign rendered values to colors
red = show1-show2/2;
if (red < 0) red=0;
green = (show1-show2)/2;
if (green < 0) green=0;
blue = show3-show1/2;
if (blue < 0) blue=0;
// Check the final results and store them.
// Discard faulty RGB values & write the remaining valid results into the framebuffer.
write_pixel_to_framebuffer();
}
}
}
void calculate_oscillators() {
AnimartrixCore::calculate_oscillators();
float n;
n = 1 + pnoise(linear_c , 10, 10); // some noise controlled angular offsets 0 to PI
noise_angle_c = n * PI;
n = 1 + pnoise(linear_d , 20, 20);
noise_angle_d = n * PI;
n = 1 + pnoise(linear_e , 30, 30);
noise_angle_e = n * PI;
n = 1 + pnoise(linear_f , 40, 40);
noise_angle_f = n * PI;
}
// Convert the polar 2 coordinates back to cartesian ones & also apply all 3d transitions.
// Calculate the noise value at this point after the 5 dimensional manipulation of
// the underlaying coordinates.
//
// Now I use a 32 bit float noise function which is more precise AND also more FPU friendly.
// This results in a better render qualitiy in edgecases AND also in a 15% better performance.
// Hurray!
float render_pixel_faster() {
// convert polar coordinates back to cartesian ones
float newx = (offset_x + center_x - (cosf(newangle) * newdist)) * scale_x;
float newy = (offset_y + center_y - (sinf(newangle) * newdist)) * scale_y;
float newz = (offset_z + z) * scale_z;
// render noisevalue at this new cartesian point
float raw_noise_field_value = pnoise(newx, newy, newz);
// a lot is happening here, namely
// A) enhance histogram (improve contrast) by setting the black and white point
// B) scale the result to a 0-255 range
// it's the contrast boosting & the "colormapping" (technically brightness mapping)
if (raw_noise_field_value < low_limit) raw_noise_field_value = low_limit;
if (raw_noise_field_value > high_limit) raw_noise_field_value = high_limit;
float scaled_noise_value = map_float(raw_noise_field_value, low_limit, high_limit, 0, 255);
return scaled_noise_value;
// done, we've just rendered one color value for one single pixel
}
};
//effect functions
uint16_t mode_PolarBasics(void) {
PolarBasics* spe;
if(!SEGENV.allocateData(sizeof(PolarBasics))) {SEGMENT.fill(SEGCOLOR(0)); return 350;} //mode_static(); //allocation failed
spe = reinterpret_cast<PolarBasics*>(SEGENV.data);
//first time init
if (SEGENV.call == 0) {
USER_PRINTF("mode_PolarBasics %d\n", sizeof(PolarBasics));
// if (SEGENV.call == 0) SEGMENT.setUpLeds();
spe->init();
// spe->render_vignette_table(9.5); // the number is the desired radius in pixel
// WIDTH/2 generates a circle
}
spe->speedratiosAndOscillators();
spe->forLoop();
// FastLED.show();
// EVERY_N_MILLIS(500) spe->report_performance();
return FRAMETIME;
}
static const char _data_FX_mode_PolarBasics[] PROGMEM = "💡Polar Basics ☾@AngleDist,AngleMult;;!;2;sx=0,ix=51,c1=0,c2=0,c3=0";
uint16_t mode_CircularBlobs(void) {
CircularBlobs* spe;
if(!SEGENV.allocateData(sizeof(CircularBlobs))) {SEGMENT.fill(SEGCOLOR(0)); return 350;} //mode_static(); //allocation failed
spe = reinterpret_cast<CircularBlobs*>(SEGENV.data);
//first time init
if (SEGENV.call == 0) {
USER_PRINTF("mode_CircularBlobs %d\n", sizeof(CircularBlobs));
// if (SEGENV.call == 0) SEGMENT.setUpLeds();
spe->init();
}
spe->speedratiosAndOscillators();
spe->forLoop();
// FastLED.show();
// EVERY_N_MILLIS(500) spe->report_performance();
return FRAMETIME;
}
static const char _data_FX_mode_CircularBlobs[] PROGMEM = "💡CircularBlobs ☾@AngleDist,AngleMult;;!;2;sx=51,ix=51,c1=0,c2=0,c3=0"; static const char _data_FX_mode_CircularBlobs[] PROGMEM = "💡CircularBlobs ☾@AngleDist,AngleMult;;!;2;sx=51,ix=51,c1=0,c2=0,c3=0";
static const char _data_FX_mode_Module_Experiment10[] PROGMEM = "💡Module_Experiment10 ☾"; static const char _data_FX_mode_Module_Experiment10[] PROGMEM = "💡Module_Experiment10 ☾";