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added move and more of the particle stuff

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yggdrasil75
2026-02-05 06:52:02 -05:00
parent 341066a0cf
commit 39c38e4061
3 changed files with 54 additions and 45 deletions
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27
tests/fluidsim.cpp
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@@ -29,42 +29,27 @@ int main() {
for (int frameIdx = 0; frameIdx < TOTAL_FRAMES; ++frameIdx) {
// --- Spawning Logic ---
// Spawn throughout the simulation (e.g., until 90% completion)
if (frameIdx % 10 == 0) {
if (frameIdx < (TOTAL_FRAMES * 0.9f)) {
if (frameIdx < (TOTAL_FRAMES * 0.1f)) {
float t = static_cast<float>(frameIdx) / (TOTAL_FRAMES * 0.9f);
// Linear interpolation for Mass: Heavy (10.0) -> Light (0.5)
float currentMass = (1.0f - t) * 10.0f + t * 0.5f;
// Linear interpolation for Size: Large (12.0) -> Small (2.0)
float currentSize = (1.0f - t) * 12.0f + t * 2.0f;
// Number of particles to spawn this frame (can increase as they get smaller)
int spawnCount = 2 + static_cast<int>(t * 4);
sim.spawnParticles(baseParticle, spawnCount, currentSize, currentMass);
sim.spawnParticles(baseParticle, spawnCount);
}
}
// --- Physics Step ---
sim.applyPhysics();
// --- Render & Save ---
if (frameIdx % 50 == 0) {
std::cout << "Rendering Frame " << frameIdx << " / " << TOTAL_FRAMES << std::endl;
// Generate LODs for faster/better rendering
sim.grid.generateLODs();
// Render frame
frame renderedFrame = sim.grid.renderFrame(cam, HEIGHT, WIDTH, frame::colormap::RGB, 4, 4, true, false);
frame renderedFrame = sim.grid.renderFrame(cam, HEIGHT, WIDTH, frame::colormap::RGB, 5, 4, true, false);
// Save to BMP
std::stringstream ss;
ss << "output/frame_" << std::setw(4) << std::setfill('0') << frameIdx << ".bmp";
BMPWriter::saveBMP(ss.str(), renderedFrame);
}
if (frameIdx % 100 == 0) {
sim.grid.printStats();
}
}