void writeImage(char *fileName, IMAGE *image, bool printInfo) {
if(printInfo) printf("Writing File...\n");
BMPHeader bmpHeader;
FileHeader fileHeader;
createDataHeader(image->width, image->height, image->numColors, &bmpHeader);
createFileHeader(&bmpHeader,&fileHeader);
FILE *fhandle = fopen(fileName,"wb");
writeFileHeader(fhandle, fileHeader, printInfo);
writeDataHeader(fhandle, bmpHeader, printInfo);
if(image->numColors == 1) writeGreyPalette(fhandle);
writeRaster(fhandle, image, printInfo);
fclose(fhandle);
}
int main(int argc, char* argv[]){
if(argc != 5){
printf("%s",HELP_MESSAGE);
return -1;
}
const int width = atoi(argv[2]);
const int height = atoi(argv[3]);
const int maxIterations = atoi(argv[4]);
if(width <= 0 || height <= 0){
printf("%s",BAD_WIDTH_HEIGHT_OR_MAX_ITERATIONS);
return -1;
}
FILE* file = fopen("test.ppm","wb");
if(file == NULL){
printf(FAILED_TO_CREATE_FILE);
return -1;
}
createFileHeader(file,width,height);
Vector3 direction;
direction = (Vector3){.x=0.5,.y=0.5,.z=1};
Vector3 from;
from = (Vector3){.x=-100,.y=-100,.z=-100};
int x = 0;
int y = 0;
int sampleRate = height/10;
int loadCount = 0;
for(y = 0; y<height; y++){
fprintf(file," ");
for(x = 0; x<width; x++){
Vector3 offset;
offset = (Vector3){.x = x, .y = y, .z = 0};
int value = (int)rayMarch(vec3Add(from,offset),direction,maxIterations);
fprintf(file,"%d %d %d ",value,value,value);
}
fprintf(file,"\n");
if(y % sampleRate == 0){
printf("\r%i\%% done",loadCount*10);
loadCount++;
}
}
fclose(file);
return 0;
}