yggdrasil75/stupidsimcpp
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sped up sphere creation, added some chunk stuff. removed serialization that didnt work.

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yggdrasil75
2026-01-22 21:04:13 -05:00
parent a453149f57
commit 65d36cc34c
3 changed files with 389 additions and 107 deletions
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55
tests/g3test2.cpp
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@@ -69,6 +69,7 @@ void setup(defaults config, VoxelGrid& grid) {
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;
size_t rValw = config.gridWidth / 64;
size_t rValh = config.gridHeight / 64;
size_t rVald = config.gridDepth / 64;
@@ -81,6 +82,11 @@ void setup(defaults config, VoxelGrid& grid) {
size_t aValw = config.gridWidth / 8;
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;
@@ -93,13 +99,24 @@ 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) {
grid.set(Vec3i(x, y, z), true, Vec3ui8(r,g,b));
positions.emplace_back(x, y, z);
}
}
}
// 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;
grid.serializeToFile("output/gridsave.ygg3");
grid.printStats();
}
@@ -115,6 +132,10 @@ void createGreenSphere(defaults config, VoxelGrid& grid) {
int progressStep = std::max(1, config.gridDepth / 10);
// Collect all positions to set
std::vector<Vec3i> positions;
positions.reserve(static_cast<size_t>(4.0/3.0 * M_PI * sphereConfig.radius * sphereConfig.radius * sphereConfig.radius));
for (int z = 0; z < config.gridDepth; ++z) {
if (z % progressStep == 0) {
std::cout << "Processing layer " << z << " of " << config.gridDepth << std::endl;
@@ -148,10 +169,21 @@ void createGreenSphere(defaults config, VoxelGrid& grid) {
}
if (shouldSet) {
grid.set(Vec3i(x, y, z), true, Vec3ui8(sphereConfig.r, sphereConfig.g, sphereConfig.b), 0.25);
positions.emplace_back(x, y, z);
}
}
}
// 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 any remaining positions
if (!positions.empty()) {
grid.setBatch(positions, true, Vec3ui8(sphereConfig.r, sphereConfig.g, sphereConfig.b), 0.25f);
}
std::cout << "Green sphere generation complete!" << std::endl;
@@ -159,7 +191,6 @@ void createGreenSphere(defaults config, VoxelGrid& grid) {
<< sphereConfig.centerY << ", " << sphereConfig.centerZ << ")" << std::endl;
std::cout << "Sphere radius: " << sphereConfig.radius << std::endl;
grid.serializeToFile("output/sphere_grid.ygg3");
grid.printStats();
}
@@ -318,14 +349,14 @@ int main() {
defaults config;
VoxelGrid grid;
bool gridInitialized = false;
auto supposedGrid = VoxelGrid::deserializeFromFile("output/gridsave.ygg3");
if (supposedGrid) {
grid = std::move(*supposedGrid);
gridInitialized = true;
config.gridDepth = grid.getDepth();
config.gridHeight = grid.getHeight();
config.gridWidth = grid.getWidth();
}
//auto supposedGrid = VoxelGrid::deserializeFromFile("output/gridsave.ygg3");
// if (supposedGrid) {
// grid = std::move(*supposedGrid);
// gridInitialized = true;
// config.gridDepth = grid.getDepth();
// config.gridHeight = grid.getHeight();
// config.gridWidth = grid.getWidth();
// }