yggdrasil75/stupidsimcpp
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made vec templates.

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Yggdrasil75
2025-12-04 12:44:02 -05:00
parent b418f38689
commit ff8639baae
7 changed files with 345 additions and 292 deletions
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16
util/output/bmpwriter.hpp
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@@ -7,7 +7,7 @@
#include <string>
#include <algorithm>
#include <filesystem>
#include "../vectorlogic/vec3.hpp"
#include "../vectorlogic/Vec3.hpp"
#include "frame.hpp"
class BMPWriter {
@@ -49,9 +49,9 @@ private:
}
public:
// Save a 2D vector of Vec3 (RGB) colors as BMP
// Vec3 components: x = red, y = green, z = blue (values in range [0,1])
static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3>>& pixels) {
// Save a 2D vector of Vec3ui8 (RGB) colors as BMP
// Vec3ui8 components: x = red, y = green, z = blue (values in range [0,1])
static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3ui8>>& pixels) {
if (pixels.empty() || pixels[0].empty()) {
return false;
}
@@ -70,13 +70,13 @@ public:
}
// Alternative interface with width/height and flat vector (row-major order)
static bool saveBMP(const std::string& filename, const std::vector<Vec3>& pixels, int width, int height) {
static bool saveBMP(const std::string& filename, const std::vector<Vec3ui8>& pixels, int width, int height) {
if (pixels.size() != width * height) {
return false;
}
// Convert to 2D vector format
std::vector<std::vector<Vec3>> pixels2D(height, std::vector<Vec3>(width));
std::vector<std::vector<Vec3ui8>> pixels2D(height, std::vector<Vec3ui8>(width));
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
pixels2D[y][x] = pixels[y * width + x];
@@ -157,7 +157,7 @@ public:
}
private:
static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3>>& pixels, int width, int height) {
static bool saveBMP(const std::string& filename, const std::vector<std::vector<Vec3ui8>>& pixels, int width, int height) {
// Create directory if needed
if (!createDirectoryIfNeeded(filename)) {
return false;
@@ -186,7 +186,7 @@ private:
std::vector<uint8_t> row(rowSize, 0);
for (int y = height - 1; y >= 0; --y) {
for (int x = 0; x < width; ++x) {
const Vec3& color = pixels[y][x];
const Vec3ui8& color = pixels[y][x];
// Convert from [0,1] float to [0,255] uint8_t
uint8_t r = static_cast<uint8_t>(std::clamp(color.x * 255.0f, 0.0f, 255.0f));