normalize.cpp

#pragma once

#include <vector>
#include <string>

#include "../RenderingEssentials/maths/Vec.hpp"
#include "../RenderingEssentials/maths/Common.hpp"
#include "../RenderingEssentials/geom/Geom.hpp"
#include "../RenderingEssentials/utils/Loader.hpp"
#include "../RenderingEssentials/utils/Exporter.hpp"

using namespace std;

int main(int argc, char *argv[]) {
	
	if (argc < 3) return 0;
	vector<Geom> mesh = Loader::loadOBJ(argv[1]);

	printf("Computing Bounds ... \n");
	BBox bounds{ { INF, INF, INF }, { -INF, -INF, -INF } };
	for (const auto &g : mesh) {
		bounds = BBox::Union(bounds, g.boundingBox());
	}

	printf("Normalization    ... \n");
	for (auto &g : mesh) {
		g.V0 = ((g.V0 - bounds.min) * (1.0 / bounds.maxDimension())) - (((bounds.max - bounds.min) * (1.0 / bounds.maxDimension())) * Vec{ 0.5, 0, 0.5 });
		g.V1 = ((g.V1 - bounds.min) * (1.0 / bounds.maxDimension())) - (((bounds.max - bounds.min) * (1.0 / bounds.maxDimension())) * Vec{ 0.5, 0, 0.5 });
		g.V2 = ((g.V2 - bounds.min) * (1.0 / bounds.maxDimension())) - (((bounds.max - bounds.min) * (1.0 / bounds.maxDimension())) * Vec{ 0.5, 0, 0.5 });
	}

	Exporter::exportOBJ(argv[2], mesh);

	return 0;
};