WallyHackenslacker/PhotonMF
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Added photon map implementation from the book.

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This commit is contained in:
Miguel Angel Astor Romero
2017-06-27 10:38:12 -04:00
parent 4ed5eccd15
commit c97a2d4fe3
8 changed files with 747 additions and 38 deletions
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30
main.cpp
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@@ -64,6 +64,8 @@ static float g_exposure = 0.0f;
static size_t g_photons = 15000;
static float g_p_sample_radius = 0.01f;
static float g_cone_filter_k = 1.0f;
static int g_max_photons = 7000000;
static int g_max_search = 5000;
////////////////////////////////////////////
// Main function.
@@ -118,7 +120,7 @@ int main(int argc, char ** argv) {
case JENSEN:
cout << "Using " << ANSI_BOLD_YELLOW << "Jensen's photon mapping" << ANSI_RESET_STYLE << " with ray tracing." << endl;
p_tracer = new PhotonTracer(g_max_depth, g_p_sample_radius, g_cone_filter_k);
p_tracer = new PhotonTracer(g_max_depth, g_p_sample_radius, g_cone_filter_k, g_max_photons, g_max_search);
if (g_photons_file == NULL && g_caustics_file == NULL) {
cout << "Building global photon map with " << ANSI_BOLD_YELLOW << g_photons / 2 << ANSI_RESET_STYLE << " primary photons per light source." << endl;
p_tracer->photon_tracing(scn, g_photons / 2);
@@ -260,6 +262,10 @@ void print_usage(char ** const argv) {
cerr << " \tthe photons defined in the specified file." << endl;
cerr << " -l\tCone filter constant." << endl;
cerr << " \tDefaults to 1.0f." << endl;
cerr << " -m\tMax number of photons in the photon map." << endl;
cerr << " \tDefaults to 7000000." << endl;
cerr << " -z\tMax number of photons for radiance estimate." << endl;
cerr << " \tDefaults to 5000." << endl;
}
void parse_args(int argc, char ** const argv) {
@@ -273,7 +279,7 @@ void parse_args(int argc, char ** const argv) {
exit(EXIT_FAILURE);
}
while((opt = getopt(argc, argv, "-:t:s:w:f:o:r:g:e:p:h:k:c:l:")) != -1) {
while((opt = getopt(argc, argv, "-:t:s:w:f:o:r:g:e:p:h:k:c:l:m:z:")) != -1) {
switch (opt) {
case 1:
g_input_file = (char *)malloc((strlen(optarg) + 1) * sizeof(char));
@@ -403,6 +409,26 @@ void parse_args(int argc, char ** const argv) {
exit(EXIT_FAILURE);
}
break;
case 'm':
g_max_photons = atoi(optarg);
if (g_max_photons <= 0) {
cerr << "Need to trace at least 1 photon." << endl;
print_usage(argv);
exit(EXIT_FAILURE);
}
break;
case 'z':
g_max_search = atoi(optarg);
if (g_max_search <= 0) {
cerr << "Need to search at least 1 photon." << endl;
print_usage(argv);
exit(EXIT_FAILURE);
}
break;
case ':':
cerr << "Option \"-" << static_cast<char>(optopt) << "\" requires an argument." << endl;