Converción de un archivo ASC

#include <stdlib.h>
#include <string.h>
#include <conio.h>
#include <stdio.h>
#include <math.h>

//numero de vertices y caras del objeto
int vertices, faces;

void LoadObject(FILE *fin, FILE *fout);
void LoadScene(FILE *fin, FILE *fout);
void DisplayUsage(void);

void LoadObject(FILE *fin, FILE *fout)
{
 int count, vertexnum, tempA, tempB, tempC;
 float tempX, tempY, tempZ;
 char *tempString = new char [80];

 while(strncmp(tempString, "Vertices",8))
	{
	fscanf(fin, "%s", tempString);
	if (feof(fin))
		{
		printf("String \"Vertices\" not found in file.Exitting...\n");
		exit(1);
		}
	}

 fgetc(fin);				//Get ':'
 fscanf(fin, "%d", &vertices);
 printf("Object has %d vertices\n", vertices);
 fprintf(fout, "%d\n", vertices);
 while(strncmp(tempString, "Faces", 5))
	{
	fscanf(fin, "%s", tempString);
	if (feof(fin))
		{
		printf("String \"Faces\" not found in file.Exitting...\n");
		exit(1);
		}
	}

 fgetc(fin);				//Get ':'
 fscanf(fin, "%d", &faces);
 printf("Object has %d faces\n", faces);
 while(strncmp(tempString, "Vertex",6))
	{
	fscanf(fin, "%s", tempString);
	if (feof(fin))
		{
		printf("String \"Vertex\" not found in file.Exitting...\n");
		exit(1);
		}
	}

 while(strncmp(tempString,"list:",5))
	{
	fscanf(fin, "%s", tempString);
	if (feof(fin))
		{
		printf("String \"list\" not found in file.Exitting...\n");
		exit(1);
		}
	}
 printf("\nVertex data:\n");

//********************  LOAD VERTEX DATA  ********************************

 for (count = 0; count < vertices; count++)
	{
	while(strncmp(tempString,"Vertex",6))
		{
		fscanf(fin, "%s", tempString);
		if(feof(fin))
			{
			printf("String \"Vertex\" not found in file.Exitting...\n");
			exit(1);
			}
		}
	fscanf(fin, "%d", &vertexnum);
	fscanf(fin, "%s", tempString);      //get ':   '
	fscanf(fin, "%[^:]", tempString);   //get '     X'
	fgetc(fin);                      	//get ':'
	fscanf(fin, "%f", &tempX);
	fscanf(fin, "%[^:]", tempString);
	fgetc(fin);
	fscanf(fin, "%f", &tempY);
	fscanf(fin, "%[^:]", tempString);
	fgetc(fin);
	fscanf(fin, "%f", &tempZ);
	/*- aqui es donde cargo la estructura con los datos de cada vertice --*/
	printf("Vertex %d:  X:%4.2f Y:%4.2f Z:%4.2f\n", vertexnum, tempX, tempY, tempZ);
	fprintf(fout, "%f %f %f\n", tempX, tempY, tempZ);
	}

 while(strncmp(tempString,"Face",4))
	{
	fscanf(fin, "%s", tempString);
	if (feof(fin))
		{
		printf("String \"Face\" not found in file.Exitting...\n");
		exit(1);
		}
	}

 while(strncmp(tempString,"list",4))
	{
	fscanf(fin, "%s", tempString);
	if (feof(fin))
		{
		printf("String \"list\" not found in file.Exitting...\n");
		exit(1);
		}
	}
 printf("\nFace data:\n");

//**********************  LOAD FACE DATA  ********************************
 fprintf(fout, "%d\n", faces);
 for (count = 0; count < faces; count++)
	{
	while(strncmp(tempString,"Face",4))
		{
		fscanf(fin, "%s", tempString);
		if (feof(fin))
			{
			printf("String \"Face\" not found in file.Exitting...\n");
			exit(1);
			}
		}
	fscanf(fin, "%d", &vertexnum);
	fscanf(fin, "%s", tempString);

	while (fgetc(fin) != 'A');
		fgetc(fin);                  // get the ':' character
	fscanf(fin, "%d", &tempA);   // get value for vertex A
	while (fgetc(fin) != 'B');
		fgetc(fin);
	fscanf(fin, "%d", &tempB);
	while (fgetc(fin) != 'C');
		fgetc(fin);
	fscanf(fin, "%d", &tempC);
	/***** me cargo las caras del objeto ********/
	printf("Face %d:  %8d %8d %8d\n", vertexnum, tempA, tempB, tempC);
	fprintf(fout,"%d %d %d\n", tempA, tempB, tempC);
	}
}

void LoadScene(FILE *fin, FILE *fout)
{
 char *tempString = new char[80];
 //Parse the input file
 while(!feof(fin))
	{
	fscanf(fin,"%s",tempString);
	if(strcmp("Tri-mesh,",tempString)==0)  //Found Tri-mesh
		LoadObject(fin, fout);
	}
}

void DisplayUsage()
{
 printf("A L P H A  v1.0  - 3D Studio object viewer (July 1996)\n");
 printf("by Ramiro Alcocer (c) 2000\n\n");
 printf("USAGE: asc <filename.asc>\n");
}

void main(int argc, char *argv[])
{
 FILE *file_asc, *file_text;

 clrscr();
 if(argc < 2)
	{
	DisplayUsage();
	exit(0);
	}
 if((file_asc = fopen(argv[1], "rt"))==NULL)
	{
	printf("Error opening file %s\n", argv[1]);
	DisplayUsage();
	exit(1);
	}

 if((file_text = fopen(argv[2], "wt"))==NULL)
	{
	printf("Error opening file %s\n", argv[2]);
	DisplayUsage();
	exit(1);
	}

 LoadScene(file_asc, file_text);

 fclose(file_text);
 fclose(file_asc);
 getch();
}