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Added some informative prints.

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Wally Hackenslacker
2017-01-13 00:34:52 -04:00
parent e720859918
commit 5857950058
1 changed files with 30 additions and 9 deletions
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35
main.cpp
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@@ -50,7 +50,7 @@ static const char * OUT_FILE = "output.png";
//////////////////////////////////////////// ////////////////////////////////////////////
typedef enum TRACERS { NONE, WHITTED, MONTE_CARLO, JENSEN } tracer_t; typedef enum TRACERS { NONE, WHITTED, MONTE_CARLO, JENSEN } tracer_t;
static char * g_input_file; static char * g_input_file = NULL;
static char * g_out_file_name = NULL; static char * g_out_file_name = NULL;
static int g_samples = 25; static int g_samples = 25;
static float g_fov = 45.f; static float g_fov = 45.f;
@@ -92,11 +92,21 @@ int main(int argc, char ** argv) {
scene_2(figures, lights, cam); scene_2(figures, lights, cam);
// Create the tracer object. // Create the tracer object.
if (g_tracer == WHITTED) cout << "Rendering the input file: " << g_input_file << endl;
cout << "The scene contains: " << endl;
cout << " " << figures.size() << (figures.size() != 1 ? " figures." : " figure.") << endl;
cout << " " << lights.size() << " light " << (lights.size() != 1 ? "sources." : "source.") << endl;
cout << "Output image resolution is " << g_w << "x" << g_h << " pixels." << endl;
cout << "Using " << g_samples << " samples per pixel." << endl;
cout << "Maximum ray tree depth is " << g_max_depth << "." << endl;
if (g_tracer == WHITTED) {
cout << "Using Whitted ray tracing." << endl;
tracer = static_cast<Tracer *>(new WhittedTracer(g_max_depth)); tracer = static_cast<Tracer *>(new WhittedTracer(g_max_depth));
else if(g_tracer == MONTE_CARLO) } else if(g_tracer == MONTE_CARLO) {
cout << "Using Monte Carlo path tracing." << endl;
tracer = static_cast<Tracer *>(new PathTracer(g_max_depth)); tracer = static_cast<Tracer *>(new PathTracer(g_max_depth));
else if(g_tracer == JENSEN) { } else if(g_tracer == JENSEN) {
cerr << "Photon mapping coming soon." << endl; cerr << "Photon mapping coming soon." << endl;
return EXIT_FAILURE; return EXIT_FAILURE;
} else { } else {
@@ -107,6 +117,7 @@ int main(int argc, char ** argv) {
// Generate the image. // Generate the image.
total = g_h * g_w * g_samples; total = g_h * g_w * g_samples;
cout << "Tracing a total of " << total << " primary rays:" << endl;
#pragma omp parallel for schedule(dynamic, 1) private(r, sample) shared(current) #pragma omp parallel for schedule(dynamic, 1) private(r, sample) shared(current)
for (int i = 0; i < g_h; i++) { for (int i = 0; i < g_h; i++) {
for (int j = 0; j < g_w; j++) { for (int j = 0; j < g_w; j++) {
@@ -121,11 +132,12 @@ int main(int argc, char ** argv) {
image[i][j] /= g_samples; image[i][j] /= g_samples;
} }
#pragma omp critical #pragma omp critical
cout << "\r" << setw(3) << static_cast<size_t>((static_cast<double>(current) / static_cast<double>(total)) * 100.0) << "% done"; cout << "\r" << setw(3) << static_cast<size_t>((static_cast<double>(current) / static_cast<double>(total)) * 100.0) << "% done.";
} }
cout << endl; cout << endl;
// Copy the pixels to the output bitmap. // Copy the pixels to the output bitmap.
cout << "Saving output image." << endl;
output_bitmap = FreeImage_Allocate(g_w, g_h, 24, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK); output_bitmap = FreeImage_Allocate(g_w, g_h, 24, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
bpp = FreeImage_GetLine(output_bitmap) / FreeImage_GetWidth(output_bitmap); bpp = FreeImage_GetLine(output_bitmap) / FreeImage_GetWidth(output_bitmap);
for (unsigned int y = 0; y < FreeImage_GetHeight(output_bitmap); y++) { for (unsigned int y = 0; y < FreeImage_GetHeight(output_bitmap); y++) {
@@ -203,8 +215,13 @@ void parse_args(int argc, char ** const argv) {
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
while((opt = getopt(argc, argv, ":t:s:w:f:o:r:")) != -1) { while((opt = getopt(argc, argv, "-:t:s:w:f:o:r:")) != -1) {
switch (opt) { switch (opt) {
case 1:
g_input_file = (char *)malloc((strlen(optarg) + 1) * sizeof(char));
strcpy(g_input_file, optarg);
break;
case 't': case 't':
if (strcmp("whitted", optarg) == 0 ) if (strcmp("whitted", optarg) == 0 )
g_tracer = WHITTED; g_tracer = WHITTED;
@@ -291,7 +308,11 @@ void parse_args(int argc, char ** const argv) {
} }
} }
g_input_file = argv[optind]; if (g_input_file == NULL) {
cerr << "Must specify an input file." << endl;
print_usage(argv);
exit(EXIT_FAILURE);
}
} }
void scene_1(vector<Figure *> & vf, vector<Light *> & vl, Camera * c) { void scene_1(vector<Figure *> & vf, vector<Light *> & vl, Camera * c) {