#pragma once // ===== Patternflow pattern ===== // Title: Chromatic Aberration Vortex // Author: Seunghun LEE // Date: 2026-06-29 // SPDX-License-Identifier: CC-BY-SA-4.0 // =============================== #include #include #include #include "config.h" #include "../src/core_display.h" #include "../src/core_encoders.h" #include "../src/core_canvas.h" #include "../src/core_math.h" namespace ChromaticAberrationVortexPattern { const char* NAME = "Chromatic Vortex"; const char* const KNOB_LABELS[4] = {"Split Dist", "Swirl Speed", "Wave Density", "Color Shift"}; const float CHROMATIC_VORTEX_SPLIT_MIN = 0.0f; const float CHROMATIC_VORTEX_SPLIT_MAX = 1.0f; const float CHROMATIC_VORTEX_SPLIT_STEP = 0.05f; const float CHROMATIC_VORTEX_SPEED_MIN = 0.1f; const float CHROMATIC_VORTEX_SPEED_MAX = 10.0f; const float CHROMATIC_VORTEX_SPEED_STEP = 0.10f; const float CHROMATIC_VORTEX_DENSITY_MIN = 0.0f; const float CHROMATIC_VORTEX_DENSITY_MAX = 4.9f; const float CHROMATIC_VORTEX_DENSITY_STEP = 0.05f; const float CHROMATIC_VORTEX_COLOR_BIAS_MIN = 0.0f; const float CHROMATIC_VORTEX_COLOR_BIAS_MAX = 1.0f; const float CHROMATIC_VORTEX_COLOR_BIAS_STEP = 0.05f; struct Params { float split; float speed; float density; float colorBias; float timeAcc; }; Params params; void setup() { PFMath::buildSinLUT(); params.split = 0.4f; params.speed = 1.5f; params.density = 2.0f; params.colorBias = 0.5f; params.timeAcc = 0.0f; } void update(float dt, const InputFrame& input) { params.split += input.knobDeltas[0] * CHROMATIC_VORTEX_SPLIT_STEP; params.split = fmodf(params.split, 1.0f); if (params.split < 0.0f) params.split += 1.0f; params.speed += input.knobDeltas[1] * CHROMATIC_VORTEX_SPEED_STEP; params.speed = constrain(params.speed, CHROMATIC_VORTEX_SPEED_MIN, CHROMATIC_VORTEX_SPEED_MAX); params.density += input.knobDeltas[2] * CHROMATIC_VORTEX_DENSITY_STEP; params.density = constrain(params.density, CHROMATIC_VORTEX_DENSITY_MIN, CHROMATIC_VORTEX_DENSITY_MAX); params.colorBias += input.knobDeltas[3] * CHROMATIC_VORTEX_COLOR_BIAS_STEP; params.colorBias = fmodf(params.colorBias, 1.0f); if (params.colorBias < 0.0f) params.colorBias += 1.0f; params.timeAcc += dt * params.speed; } void draw() { int w = PANEL_RES_W; int h = PANEL_RES_H; float t = params.timeAcc; float cx = w / 2.0f; float cy = h / 2.0f; float maxShift = params.split * 8.0f; float densityCalc = params.density * 0.1f + 0.05f; for (int y = 0; y < h; y++) { float dy = (float)y - cy; for (int x = 0; x < w; x++) { float dx = (float)x - cx; // 완벽한 원형을 위해 실제 sqrtf 사용 (ESP32-S3 FPU 하드웨어 연산 활용) float dist = sqrtf(dx * dx + dy * dy); float angle = atan2f(dy, dx); float dist005 = dist * 0.05f; float shiftR = PFMath::fastSin(dist005 - t) * maxShift; float shiftG = PFMath::fastSin(dist005 - t + 1.0f) * maxShift * 0.5f; float shiftB = PFMath::fastSin(dist005 - t + 2.0f) * maxShift * -0.5f; // Red Channel Matrix float rDist = dist + shiftR; float rWave = PFMath::fastSin(rDist * densityCalc - t * 2.0f + angle); float rInt = rWave * 0.5f + 0.5f; if (rInt < 0.0f) rInt = 0.0f; // Green Channel Matrix float gDist = dist + shiftG; float gWave = PFMath::fastSin(gDist * densityCalc - t * 2.0f + angle + 1.0f); float gInt = gWave * 0.5f + 0.5f; if (gInt < 0.0f) gInt = 0.0f; // Blue Channel Matrix float bDist = dist + shiftB; float bWave = PFMath::fastSin(bDist * densityCalc - t * 2.0f + angle + 2.0f); float bInt = bWave * 0.5f + 0.5f; if (bInt < 0.0f) bInt = 0.0f; // Color Bias Processing float rFloat = rInt * 255.0f * (params.colorBias * 0.5f + 0.5f); float gFloat = gInt * 255.0f * (1.0f - params.colorBias * 0.3f); float bFloat = bInt * 255.0f * (0.3f + params.colorBias * 0.7f); uint8_t r = (uint8_t)constrain(floorf(rFloat), 0.0f, 255.0f); uint8_t g = (uint8_t)constrain(floorf(gFloat), 0.0f, 255.0f); uint8_t b = (uint8_t)constrain(floorf(bFloat), 0.0f, 255.0f); // White Overlap Peak Correction if (rInt > 0.85f && gInt > 0.85f && bInt > 0.85f) { r = 255; g = 255; b = 255; } PFCanvas::setPixel(x, y, r, g, b); } } PFCanvas::present(); } } // namespace ChromaticAberrationVortexPattern // ── Made with Patternflow · https://patternflow.work ── // Shared under CC-BY-SA-4.0. Attribution is part of this licence — // please keep this notice and the author credit above when you reuse, // remix, or redistribute this pattern. Do not delete it.

Chromatic Vortex

Comments (0)