yggdrasil75/stupidsimcpp
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noise features, fixed some grid stuff.

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Yggdrasil75
2026-01-16 13:37:13 -05:00
parent 4dfe6c9a5e
commit acba629774
4 changed files with 226 additions and 8 deletions
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36
tests/g3test2.cpp
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@@ -22,8 +22,8 @@
struct defaults {
int outWidth = 512;
int outHeight = 512;
int gridWidth = 64;
int gridHeight = 64;
int gridWidth = 512;
int gridHeight = 512;
int gridDepth = 64;
float fps = 30.0f;
PNoise2 noise = PNoise2(42);
@@ -51,6 +51,18 @@ 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;
size_t gValw = config.gridWidth / 32;
size_t gValh = config.gridHeight / 32;
size_t gVald = config.gridDepth / 32;
size_t bValw = config.gridWidth / 16;
size_t bValh = config.gridHeight / 16;
size_t bVald = config.gridDepth / 16;
size_t aValw = config.gridWidth / 8;
size_t aValh = config.gridHeight / 8;
size_t aVald = config.gridDepth / 8;
for (int z = 0; z < config.gridDepth; ++z) {
if (z % 64 == 0) {
std::cout << "Processing layer " << z << " of " << config.gridDepth << std::endl;
@@ -58,10 +70,10 @@ void setup(defaults config, VoxelGrid& grid) {
for (int y = 0; y < config.gridHeight; ++y) {
for (int x = 0; x < config.gridWidth; ++x) {
uint8_t r = config.noise.permute(Vec3f(static_cast<float>(x) / config.gridWidth / 64, static_cast<float>(y) / config.gridHeight / 64, static_cast<float>(z) / config.gridDepth / 64)) * 255;
uint8_t g = config.noise.permute(Vec3f(static_cast<float>(x) / config.gridWidth / 32, static_cast<float>(y) / config.gridHeight / 32, static_cast<float>(z) / config.gridDepth / 32)) * 255;
uint8_t b = config.noise.permute(Vec3f(static_cast<float>(x) / config.gridWidth / 16, static_cast<float>(y) / config.gridHeight / 16, static_cast<float>(z) / config.gridDepth / 16)) * 255;
uint8_t a = config.noise.permute(Vec3f(static_cast<float>(x) / config.gridWidth / 8 , static_cast<float>(y) / config.gridHeight / 8 , static_cast<float>(z) / config.gridDepth / 8)) * 255;
uint8_t r = config.noise.permute(Vec3f(static_cast<float>(x) * rValw, static_cast<float>(y) * rValh, static_cast<float>(z) * rVald)) * 255;
uint8_t g = config.noise.permute(Vec3f(static_cast<float>(x) * gValw, static_cast<float>(y) * gValh, static_cast<float>(z) * gVald)) * 255;
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;
//Vec4ui8 noisecolor = config.noise.permuteColor(Vec3f( static_cast<float>(x) / 64, static_cast<float>(y) / 64, static_cast<float>(z) / 64));
if (a > threshold) {
//std::cout << "setting a position" << std::endl;
@@ -155,6 +167,14 @@ void stopAndSaveAVI(defaults& config, const std::string& filename) {
recordingFramesRemaining = 0;
}
void saveSlices(defaults& config, VoxelGrid& grid) {
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";
BMPWriter::saveBMP(filename, frames[i]);
}
}
static void glfw_error_callback(int error, const char* description)
{
fprintf(stderr, "GLFW Error %d: %s\n", error, description);
@@ -341,6 +361,10 @@ int main() {
cameraMoved = true;
}
if (ImGui::Button("Save Slices")) {
saveSlices(config, grid);
}
// AVI Recording Controls
ImGui::Separator();
ImGui::Text("AVI Recording:");