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yggdrasil75
2026-03-07 11:17:51 -05:00
parent 3d96e569c8
commit 35c8a71102
3 changed files with 260 additions and 87 deletions
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116
tests/materialtest.cpp
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@@ -10,6 +10,9 @@
#include "../util/grid/grid3eigen.hpp"
#include "../util/output/frame.hpp"
#include "../util/output/bmpwriter.hpp"
#include "../util/output/aviwriter.hpp"
#include "../util/timing_decorator.hpp"
#include "../util/timing_decorator.cpp"
// Helper function to create a solid volume of voxels with material properties
void createBox(Octree<int>& octree, const Eigen::Vector3f& center, const Eigen::Vector3f& size,
@@ -123,11 +126,16 @@ int main() {
octree.generateLODs();
octree.printStats();
// 3. Setup rendering loop
// 3. Setup video rendering
int width = 512;
int height = 512;
int samples = 400;
int bounces = 5;
// --- Video Animation Parameters ---
const float fps = 30.0f;
const float durationPerSegment = 10.0f; // Seconds to travel between each view
const int framesPerSegment = static_cast<int>(fps * durationPerSegment);
const int video_samples = 100; // Samples per pixel for each video frame
const int video_bounces = 5; // Ray bounces for each video frame
struct View {
std::string name;
@@ -135,61 +143,65 @@ int main() {
Eigen::Vector3f up;
};
// The walls are set perfectly at +/- 7.0 inner edges.
// Placing camera at +/- 6.8 will put it "just barely inside".
// Floor is at Z = -0.5, Wall top is at Z = 7.5
// Define the keyframe camera views for the animation
std::vector<View> views = {
{"+X", Eigen::Vector3f( 6.8f, 0.0f, 1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
{"-X", Eigen::Vector3f(-6.8f, 0.0f, 1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
{"+Y", Eigen::Vector3f( 0.0f, 6.8f, 1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
{"-Y", Eigen::Vector3f( 0.0f, -6.8f, 1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
{"+Z", Eigen::Vector3f( 0.0f, 0.0f, 7.3f), Eigen::Vector3f(0.0f, 1.0f, 0.0f)} // Looking down from just beneath wall top
{"+X", Eigen::Vector3f( 6.8f, 0.0f, 1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
{"+Y", Eigen::Vector3f( 0.0f, 6.8f, 1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
{"-X", Eigen::Vector3f(-6.8f, 0.0f, 1.0f), Eigen::Vector3f(0.0f, 0.0f, 1.0f)},
{"+Z", Eigen::Vector3f( 0.0f, 0.0f, 7.3f), Eigen::Vector3f(0.0f, 1.0f, 0.0f)} // Top-down view
};
Eigen::Vector3f target(0.0f, 0.0f, 0.5f);
Eigen::Vector3f target(0.0f, 0.0f, 0.5f); // The camera will always look at this point
for (const auto& view : views) {
std::cout << "\nRendering view from " << view.name << " direction (Fast Pass)..." << std::endl;
Camera cam;
cam.origin = view.origin;
cam.direction = (target - view.origin).normalized();
cam.up = view.up;
frame out = octree.fastRenderFrame(cam, height, width, frame::colormap::RGB);
std::string filename = "output/fast/render_" + view.name + ".bmp";
BMPWriter::saveBMP(filename, out);
}
for (const auto& view : views) {
std::cout << "\nRendering view from " << view.name << " direction (Medium 60s Pass)..." << std::endl;
Camera cam;
cam.origin = view.origin;
cam.direction = (target - view.origin).normalized();
cam.up = view.up;
frame out = octree.renderFrameTimed(cam, height, width, frame::colormap::RGB, 60, bounces, false, true);
std::string filename = "output/medium/render_" + view.name + ".bmp";
BMPWriter::saveBMP(filename, out);
}
for (const auto& view : views) {
std::cout << "\nRendering view from " << view.name << " direction (Slow 400 Samples Pass)..." << std::endl;
Camera cam;
cam.origin = view.origin;
cam.direction = (target - view.origin).normalized();
cam.up = view.up;
frame out = octree.renderFrame(cam, height, width, frame::colormap::RGB, samples, bounces, false, true);
std::string filename = "output/slow/render_" + view.name + ".bmp";
BMPWriter::saveBMP(filename, out);
// --- Main Animation and Rendering Loop ---
std::vector<frame> videoFrames;
const int totalFrames = framesPerSegment * views.size();
videoFrames.reserve(totalFrames);
int frameCounter = 0;
std::cout << "\nStarting video render..." << std::endl;
std::cout << "Total frames to render: " << totalFrames << std::endl;
for (size_t i = 0; i < views.size(); ++i) {
const View& startView = views[i];
const View& endView = views[(i + 1) % views.size()]; // Loop back to the first view at the end
std::cout << "\nAnimating segment: " << startView.name << " -> " << endView.name << std::endl;
for (int j = 0; j < framesPerSegment; ++j) {
frameCounter++;
float t = static_cast<float>(j) / static_cast<float>(framesPerSegment);
// Interpolate camera position (origin) linearly
Eigen::Vector3f currentOrigin = startView.origin * (1.0f - t) + endView.origin * t;
// Interpolate camera orientation (up vector) and normalize
Eigen::Vector3f currentUp = (startView.up * (1.0f - t) + endView.up * t).normalized();
Camera cam;
cam.origin = currentOrigin;
cam.up = currentUp;
cam.direction = (target - cam.origin).normalized();
std::cout << "Rendering video frame " << frameCounter << "/" << totalFrames << "..." << std::endl;
frame out = octree.renderFrame(cam, height, width, frame::colormap::RGB, video_samples, video_bounces, false, true);
videoFrames.push_back(std::move(out)); // Use std::move for efficiency
}
}
std::cout << "\nAll renders complete!" << std::endl;
// --- Save the final video ---
std::cout << "\nAll frames rendered. Saving video file..." << std::endl;
std::string videoFilename = "output/material_test_video.avi";
if (AVIWriter::saveAVIFromCompressedFrames(videoFilename, std::move(videoFrames), width, height, fps)) {
std::cout << "Video saved successfully to " << videoFilename << std::endl;
} else {
std::cerr << "Error: Failed to save video!" << std::endl;
}
std::cout << "\nRender complete!" << std::endl;
return 0;
}