int main()
{
readFile();
setRay();
ColorImage image;
image.init(Rw, Rh);
Pixel pixelColor;
for (int i = 0; i < Rw; ++i) {
for (int j = 0; j < Rh; ++j) {
/// generate the ray.
vec3 ray = dir + i*hori - j*vert;
ray = ray.normalize();
bestDistance = 5;
/// test if it intersected with all triangles.
for (unsigned int t = 0; t < Triangle.size(); t+=3) {
if( isIntersectedTri(ray, Triangle[t], Triangle[t+1], Triangle[t+2]) ) {
pixelColor = {color, color, color};
image.writePixel(i, j, pixelColor);
}
}
/// test if it intersected with all spheres.
// for (unsigned int s = 0; s < Sphere.size(); ++s) {
// if( isIntersectedSph(ray, Sphere[s]) ) {
// image.writePixel(i, j, pixelColor);
// }
// }
}
}
char outputname[15] = "hw1_output.ppm";
image.outputPPM(outputname);
return 0;
}
void output(int sampling, string outputFileName[], Viewport &viewport)
{
ColorImage image;
Pixel p = { 0, 0, 0 };
image.init(viewport.width, viewport.width);
for (int i = 0; i < viewport.height; i++)
{
for (int j = 0; j < viewport.width; j++)
{
viewport.pixel[i][j] *= 255;
for (int k = 0; k < 3; k++)
{
if (viewport.pixel[i][j][k] > 255)
{
viewport.pixel[i][j][k] = 255;
}
}
p.R = viewport.pixel[i][j][0];
p.G = viewport.pixel[i][j][1];
p.B = viewport.pixel[i][j][2];
image.writePixel(j, i, p);
}
}
image.outputPPM(const_cast<char*>((outputFileName[sampling] + ".ppm").c_str()));
}