void ITR3DMImport::splitX(Poly* poly,PolyList* polyList)
{
Vector<Point3F> points;
Point3F iPoint;
int v1 = poly->vertexList.size() - 1;
for (int v2 = 0; v2 < poly->vertexList.size(); v2++) {
Poly::Vertex* p1 = &poly->vertexList[v1];
Poly::Vertex* p2 = &poly->vertexList[v2];
if (p1->texture.x <= float(splitDist - 1) && p2->texture.x > float(splitDist - 1) ||
p2->texture.x <= float(splitDist - 1) && p1->texture.x > float(splitDist - 1)) {
Point3F vec;
vec = p2->point;
vec -= p1->point;
vec *= (float(splitDist - 1) - p1->texture.x) / (p2->texture.x - p1->texture.x);
vec += p1->point;
points.push_back(vec);
}
if (p1->texture.x < float(splitDist - 1))
iPoint = p1->point;
v1 = v2;
}
// Build plane and split the poly
if (points.size() > 1) {
Point3F vec = points[0];
vec -= points[1];
Point3F normal;
m_cross(vec,poly->plane,&normal);
TPlaneF plane(points[0],normal);
if (plane.whichSide(iPoint) != TPlaneF::Inside)
plane.neg();
Poly tmp;
Poly* npoly = new Poly;
poly->split(plane,&tmp,npoly);
poly->vertexList = tmp.vertexList;
npoly->plane = poly->plane;
npoly->textureOffset = poly->textureOffset;
npoly->material = poly->material;
npoly->volumeMask = poly->volumeMask;
npoly->textureScaleShift = poly->textureScaleShift;
npoly->applyAmbient = poly->applyAmbient;
polyList->push_back(npoly);
// Normalize after the previous information copy,
// normalize alters some of the poly's fields.
normalizeTexture(poly);
normalizeTexture(npoly);
}
}
//----------------------------------------------------------------------------
// ** Note: The vertex and plane normals values are swapped
// around to align with our normal viewing axis.
//
void ITR3DMImport::import(const char* file,PolyList* polyList)
{
int version = 0;
FILE* fp = fopen(file,"r");
char buff[256];
AssertFatal(fp != 0,"ITR3DMImport::import: Error openning file");
// Load the vertex list - or the version number...
do
fgets(buff,256,fp);
while( strcmp(buff,"VERTICES\n") && strcmp( buff, "VERSION\n" ) );
// check if we got verion
if( !strcmp( buff, "VERSION\n" ) )
{
fscanf( fp, "%d\n", &version );
// get to the vertices
do
fgets(buff,256,fp);
while( strcmp(buff,"VERTICES\n") );
}
int vertexCount;
fscanf(fp,"%d\n",&vertexCount);
Vector<Point3F> pointList;
pointList.setSize(vertexCount);
for (int i = 0; i < vertexCount; i++) {
Point3F pp;
// Convert to our coordinate system.
fscanf(fp,"%f %f %f\n",&pp.x,&pp.z,&pp.y);
pp *= scale;
pointList[i] = snap(pp);
}
// Load the faces
do
fgets(buff,256,fp);
while (strcmp(buff,"POLYGONS\n"));
int polyCount;
fscanf(fp,"%d\n",&polyCount);
int degeneratePoly = 0;
polyList->reserve(polyCount);
for (int i = 0; i < polyCount; i++) {
Poly* poly = new Poly;
fgets(buff,256,fp);
poly->material = atoi(buff);
int count;
fscanf(fp,"%d\n",&count);
if (count < 3) {
degeneratePoly++;
delete poly;
continue;
}
poly->vertexList.setSize(count);
// DMM - Scan in texture size and offset. (New in Zed);
fscanf(fp, "%d %d\n", &poly->textureSize.x, &poly->textureSize.y);
fscanf(fp, "%d %d\n", &poly->textureOffset.x, &poly->textureOffset.y);
// grab the texture scaling factor
int textureScaleShift;
fscanf(fp, "%d\n", &textureScaleShift );
poly->textureScaleShift = textureScaleShift;
// check if there is a ambient flag ( any version will have this... )
if( version )
{
int tmp;
fscanf( fp, "%d\n", &tmp );
poly->applyAmbient = bool( tmp );
}
// Vertices
for (int i = 0; i < count; i++) {
int index;
fscanf(fp,"%d",&index);
poly->vertexList[i].point = pointList[index];
poly->vertexList[i].colinear = false;
}
fscanf(fp,"\n",buff);
// Texture coor.
for (int i = 0; i < count; i++) {
Point2F& texture = poly->vertexList[i].texture;
fscanf(fp, "%f %f", &texture.x,&texture.y);
}
fscanf(fp,"\n",buff);
// Volume mask
fscanf(fp,"%lu\n",&poly->volumeMask);
#if 1
// Read in the plane exported by zed
fscanf(fp,"%f %f %f %f\n",
&poly->plane.x, &poly->plane.z, &poly->plane.y, &poly->plane.d);
poly->plane.d *= scale;
// Use the plane class to make sure the polygon
// is not degenerate.
TPlaneF tmp;
Point3F* vl[MaxPolyVertex];
AssertFatal(poly->vertexList.size() <= MaxPolyVertex,
"ITR3DMImport::import: Poly exceeded max vertex size");
for (int v = 0; v < poly->vertexList.size(); v++)
vl[v] = &poly->vertexList[v].point;
if (!tmp.set(poly->vertexList.size(),vl)) {
degeneratePoly++;
delete poly;
continue;
}
#else
// Build the plane using the vertices
Point3F* vl[MaxPolyVertex];
AssertFatal(poly->vertexList.size() <= MaxPolyVertex,
"ITR3DMImport::import: Poly exceeded max vertex size");
for (int v = 0; v < poly->vertexList.size(); v++)
vl[v] = &poly->vertexList[v].point;
if (!poly->plane.set(poly->vertexList.size(),vl)) {
degeneratePoly++;
delete poly;
continue;
}
#endif
// If we have bad texture coordinates, let's try re-boxmapping
// first.
if (poly->textureSize.x == 0 || poly->textureSize.y == 0) {
printf(" Degenerate poly textures (%d)\n",i);
boxMap(poly);
}
normalizeTexture(poly);
if (poly->textureSize.x == 0 || poly->textureSize.y == 0) {
degeneratePoly++;
delete poly;
continue;
}
//
polyList->push_back(poly);
}
if (degeneratePoly)
printf("\n *****: %d Degenerate polys dropped\n ",degeneratePoly);
fclose(fp);
}
// function that generates the 2D noise texture
void TextureManager::generateNoiseTexture(void)
{
float *largeNoiseData1, *largeNoiseData2;
float *filterKernel;
// With copied left-right
largeNoiseData1 = new float [TM_NOISE_TEXTURE_SIZE * TM_NOISE_TEXTURE_SIZE * 4 * 2 * 2];
largeNoiseData2 = new float [TM_NOISE_TEXTURE_SIZE * TM_NOISE_TEXTURE_SIZE * 4 * 2 * 2];
filterKernel = new float [TM_FILTER_KERNEL_SIZE];
// Generate white noise baseline
for (int i = 0; i < TM_NOISE_TEXTURE_SIZE * TM_NOISE_TEXTURE_SIZE * 4; i++)
{
noiseData[i] = frand();
}
// copy noise baseline in repeated border buffer
for (int y = 0; y < TM_NOISE_TEXTURE_SIZE * 2; y++)
{
for (int x = 0; x < TM_NOISE_TEXTURE_SIZE * 2; x++)
{
int srcIdx = (y % TM_NOISE_TEXTURE_SIZE) * TM_NOISE_TEXTURE_SIZE * 4
+ (x % TM_NOISE_TEXTURE_SIZE) * 4;
int dstIdx = y * TM_NOISE_TEXTURE_SIZE * 4 * 2 + x * 4;
largeNoiseData1[dstIdx++] = noiseData[srcIdx++];
largeNoiseData1[dstIdx++] = noiseData[srcIdx++];
largeNoiseData1[dstIdx++] = noiseData[srcIdx++];
largeNoiseData1[dstIdx++] = noiseData[srcIdx++];
}
}
// genereate filter kernel
for (int i = 0; i < TM_FILTER_KERNEL_SIZE; i++)
{
float position = (float)i / (float)TM_FILTER_KERNEL_SIZE * 2.0f * 3.1415926f;
filterKernel[i] = 1.0f - (float)cos(position);
//filterKernel[i] = 1.0f;
}
normalizeKernel(filterKernel, TM_FILTER_KERNEL_SIZE);
float *curSrc = largeNoiseData1;
float *curDst = largeNoiseData2;
for (int mode = 0; mode < 2; mode++)
{
for (int y = 0; y < TM_NOISE_TEXTURE_SIZE + TM_FILTER_KERNEL_SIZE; y++)
{
for (int x = 0; x < TM_NOISE_TEXTURE_SIZE; x++)
{
float filtered[4];
filtered[0] = 0.0f;
filtered[1] = 0.0f;
filtered[2] = 0.0f;
filtered[3] = 0.0f;
int srcIdx = y * TM_NOISE_TEXTURE_SIZE * 2 * 4 + x * 4;
for (int xp = 0; xp < TM_FILTER_KERNEL_SIZE; xp++)
{
filtered[0] += curSrc[srcIdx++] * filterKernel[xp];
filtered[1] += curSrc[srcIdx++] * filterKernel[xp];
filtered[2] += curSrc[srcIdx++] * filterKernel[xp];
filtered[3] += curSrc[srcIdx++] * filterKernel[xp];
}
int dstIdx = x * TM_NOISE_TEXTURE_SIZE * 2 * 4 + y * 4;
curDst[dstIdx] = filtered[0];
curDst[dstIdx+1] = filtered[1];
curDst[dstIdx+2] = filtered[2];
curDst[dstIdx+3] = filtered[3];
}
}
curSrc = largeNoiseData2;
curDst = largeNoiseData1;
}
// copy back to small array
for (int y = 0; y < TM_NOISE_TEXTURE_SIZE; y++)
{
for (int x = 0; x < TM_NOISE_TEXTURE_SIZE; x++)
{
int dstIdx = y * TM_NOISE_TEXTURE_SIZE * 4 + x * 4;
int srcIdx = y * TM_NOISE_TEXTURE_SIZE * 4 * 2 + x * 4;
noiseData[dstIdx++] = (float)largeNoiseData1[srcIdx++];
noiseData[dstIdx++] = (float)largeNoiseData1[srcIdx++];
noiseData[dstIdx++] = (float)largeNoiseData1[srcIdx++];
noiseData[dstIdx++] = (float)largeNoiseData1[srcIdx++];
}
}
// normalize small Array
normalizeTexture(noiseData, TM_NOISE_TEXTURE_SIZE * TM_NOISE_TEXTURE_SIZE);
delete [] largeNoiseData1;
delete [] largeNoiseData2;
delete [] filterKernel;
makeIntTexture();
}