yggdrasil75/stupidsimcpp
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well, fast enough I guess.

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Yggdrasil75
2026-01-23 10:13:51 -05:00
parent 9c0be89a8b
commit 4f409cedc5
2 changed files with 293 additions and 145 deletions
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33
tests/g3test2.cpp
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@@ -66,6 +66,7 @@ struct Shared {
};
void setup(defaults config, VoxelGrid& grid) {
TIME_FUNCTION;
uint8_t threshold = 0.1 * 255;
grid.resize(config.gridWidth, config.gridHeight, config.gridDepth);
std::cout << "Generating grid of size " << config.gridWidth << "x" << config.gridHeight << "x" << config.gridDepth << std::endl;
@@ -83,10 +84,6 @@ void setup(defaults config, VoxelGrid& grid) {
size_t aValh = config.gridHeight / 8;
size_t aVald = config.gridDepth / 8;
// Collect all positions to set
std::vector<Vec3i> positions;
positions.reserve(config.gridWidth * config.gridHeight * config.gridDepth / 10); // Estimate 10% will be active
for (int z = 0; z < config.gridDepth; ++z) {
if (z % 64 == 0) {
std::cout << "Processing layer " << z << " of " << config.gridDepth << std::endl;
@@ -99,21 +96,10 @@ void setup(defaults config, VoxelGrid& grid) {
uint8_t b = config.noise.permute(Vec3f(static_cast<float>(x) * bValw, static_cast<float>(y) * bValh, static_cast<float>(z) * bVald)) * 255;
uint8_t a = config.noise.permute(Vec3f(static_cast<float>(x) * aValw, static_cast<float>(y) * aValh, static_cast<float>(z) * aVald)) * 255;
if (a > threshold) {
positions.emplace_back(x, y, z);
grid.set(Vec3i(x, y, z), true, Vec3ui8(r,g,b));
}
}
}
// Process in batches every few layers to manage memory
if (z % 8 == 0 && !positions.empty()) {
grid.setBatch(positions, true, Vec3ui8(255, 255, 255), 1.0f);
positions.clear();
}
}
// Process any remaining positions
if (!positions.empty()) {
grid.setBatch(positions, true, Vec3ui8(255, 255, 255), 1.0f);
}
std::cout << "Noise grid generation complete!" << std::endl;
@@ -121,6 +107,7 @@ void setup(defaults config, VoxelGrid& grid) {
}
void createGreenSphere(defaults config, VoxelGrid& grid) {
TIME_FUNCTION;
grid.resize(config.gridWidth, config.gridHeight, config.gridDepth);
std::cout << "Creating green sphere of size " << config.gridWidth << "x" << config.gridHeight << "x" << config.gridDepth << std::endl;
@@ -174,12 +161,14 @@ void createGreenSphere(defaults config, VoxelGrid& grid) {
}
}
// Process in batches to manage memory
if (z % 4 == 0 && !positions.empty()) {
grid.setBatch(positions, true, Vec3ui8(sphereConfig.r, sphereConfig.g, sphereConfig.b), 0.25f);
positions.clear();
}
// // Process in batches to manage memory
// if (z % 16 == 0 && !positions.empty()) {
// grid.setBatch(positions, true, Vec3ui8(sphereConfig.r, sphereConfig.g, sphereConfig.b), 0.25f);
// positions.clear();
// }
}
grid.setBatch(positions, true, Vec3ui8(sphereConfig.r, sphereConfig.g, sphereConfig.b), 0.25f);
positions.clear();
// Process any remaining positions
if (!positions.empty()) {
@@ -247,6 +236,7 @@ void startAVIRecording(int frameCount) {
}
void stopAndSaveAVI(defaults& config, const std::string& filename) {
TIME_FUNCTION;
std::lock_guard<std::mutex> lock(recordingMutex);
if (!recordedFrames.empty()) {
@@ -272,6 +262,7 @@ void stopAndSaveAVI(defaults& config, const std::string& filename) {
}
void saveSlices(const defaults& config, VoxelGrid& grid) {
TIME_FUNCTION;
std::vector<frame> frames = grid.genSlices(frame::colormap::RGB);
for (int i = 0; i < frames.size(); i++) {
std::string filename = "output/slices/" + std::to_string(i) + ".bmp";