Doyle Thai 4eb54c09b1 Fix zbuffer bug clipping at poly's behind 0, 0
Mistakenly use FLT_MIN as the largest negative number possible, where we should
be using -FLT_MAX.
2017-05-25 22:22:47 +10:00

55 lines
1.3 KiB
C++

#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
#include <vector>
#include "model.h"
Model::Model(const char *filename) : verts_(), faces_() {
std::ifstream in;
in.open (filename, std::ifstream::in);
if (in.fail()) return;
std::string line;
while (!in.eof()) {
std::getline(in, line);
std::istringstream iss(line.c_str());
char trash;
if (!line.compare(0, 2, "v ")) {
iss >> trash;
Vec3f v;
for (int i=0;i<3;i++) iss >> v[i];
verts_.push_back(v);
} else if (!line.compare(0, 2, "f ")) {
std::vector<int> f;
int itrash, idx;
iss >> trash;
while (iss >> idx >> trash >> itrash >> trash >> itrash) {
idx--; // in wavefront obj all indices start at 1, not zero
f.push_back(idx);
}
faces_.push_back(f);
}
}
std::cerr << "# v# " << verts_.size() << " f# " << faces_.size() << std::endl;
}
Model::~Model() {
}
int Model::nverts() {
return (int)verts_.size();
}
int Model::nfaces() {
return (int)faces_.size();
}
std::vector<int> Model::face(int idx) {
return faces_[idx];
}
Vec3f Model::vert(int i) {
return verts_[i];
}