I am trying to display an array of MD2 characters in a world and I am getting a segmentation fault when building the mipmap for the skin file ................... CTargaImage image; image.Load(skinFile); glGenTextures(1,&m_texID); glBindTexture(GL_TEXTURE_2D,m_texID); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR); gluBuild2DMipmaps(GL_TEXTURE_2D,GL_RGB,image.GetWidth(),image.GetHeight(),GL_RGB,GL_UNSIGNED_BYTE,image.GetImage()); ............................................ the gluBuild2DMipmap gives the segmentation fault as reported by gdb under Linux. the Meta properties for the Targa file are 432x142 pixels? 24bpp RGB Runlength encoded would this cause the problem? should the image be smaller 64x64 etc??

Yea my thoughts exactly.
If your image.Load function failes, you are likely to get segmentation faults when accessing the image member functions later on

I have a skybox and a textured landscape and my tga seems to be working for these
I scaled the images for the binding to 3Dmodel and still get a segmentation fault??
Any suggestions are welcome!

I have tried the following
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gluBuild2DMipmaps(GL_TEXTURE_2D,GL_RGB,image.GetWidth(),image.GetHeight(),GL_RGB,GL_UNSIGNED_BYTE,image.GetImage());
^setting to 3

and still segmentation fault
my skybox code is
....................
CTargaImage image;

image.Load(top);
glGenTextures(1, &m_textures[SKY_TOP]);
glBindTexture(GL_TEXTURE_2D, m_textures[SKY_TOP]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGB, image.GetWidth(), image.GetHeight(), GL_RGB, GL_UNSIGNED_BYTE, image.GetImage());
image.Release();
......................
and I have tried using CLAMP_TO_EDGE and Im just plain stuck.
my Model load function goes like
.....................................
m_rhinoModel.Load("rhino/tris.md2","rhino/rhino.tga");
m_centaurModel.Load("centaur/tris.md2","centaur/centaur.tga";
m_demonModel.Load("nemocromicus/tris.md2","necromicus/necromicus.tga");
......................................
and the MD2 load is like where scale is set to a constant
bool CMD2Model::Load(const char *modelFile,const char *skinFile,GLfloat scale)
{
FILE *pF;
if((pF = fopen(modelFile,"rb"))==NULL){
return false;
}


fread(&m_info,sizeof(modelHeader_t),1,pF);

m_verts = new xyz_t[m_info.numXYZ * m_info.numFrames];



char *buffer = new char[m_info.numFrames * m_info.framesize];


//////////
// initialize member variables




fseek(pF,m_info.offsetFrames,SEEK_SET);
fread(buffer,m_info.numFrames,m_info.framesize,pF);

int i,j;
frame_t *frame;
xyz_t *pVerts;
m_miny = FLT_MAX;
GLfloat maxy = FLT_MIN;

for(j=0;j<m_info.numFrames;++j)
{
frame =(frame_t*)&buffer[m_info.framesize*j];
pVerts = (xyz_t*)&m_verts[m_info.numXYZ*j];
for(i=0;i<m_info.numXYZ;i++)
{
pVerts.x = scale*(frame->scale[0]*frame->fp.v[0]+frame->translate[0]);
pVerts.x = scale*(frame->scale[1]*frame->fp.v[1]+frame->translate[1]);
pVerts.x = scale*(frame->scale[2]*frame->fp.v[2]+frame->translate[2]);

if(j==0)
{
if(pVerts.y<m_miny)
m_miny = pVerts.y;
if(pVerts.y > maxy)
maxy = pVerts.y;
}
}
}
CalculateBoundingSphere(m_boundingSphere,m_miny,maxy);
// Move(0,0,0);

m_tris = new mesh_t[m_info.numTris];

fseek(pF,m_info.offsetTris,SEEK_SET);
fread(m_tris,m_info.numTris,sizeof(mesh_t),pF);

stIndex_t *stTemp = new stIndex_t[m_info.numST];
m_texCoords = new texCoord_t[m_info.numTris*3];

fseek(pF,m_info.offsetST,SEEK_SET);
fread(stTemp,m_info.numST,sizeof(stIndex_t),pF);

int index =0;
for(i=0;i<m_info.numTris;i++)
{
m_texCoords[index].s = (float)stTemp[m_tris.stIndex[0]].s / m_info.skinwidth;
m_texCoords[index++].t = 1.0f - (float)stTemp[m_tris.stIndex[0]].t / m_info.skinheight;
m_texCoords[index].s = (float)stTemp[m_tris.stIndex[1]].s / m_info.skinwidth;
m_texCoords[index++].t = 1.0f -(float)stTemp[m_tris.stIndex[1]].t / m_info.skinheight;
m_texCoords[index].s = (float)stTemp[m_tris.stIndex[2]].s / m_info.skinwidth;
m_texCoords[index++].t = 1.0f - (float)stTemp[m_tris.stIndex[2]].s / m_info.skinheight;
}

m_currentVerts = new xyz_t[m_info.numTris * 3];

//close file and free mem
fclose(pF);
//pFile.close();
delete[]buffer;

CTargaImage image;
image.Load(skinFile);
glGenTextures(1,&m_texID);
glBindTexture(GL_TEXTURE_2D,m_texID);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gluBuild2DMipmaps(GL_TEXTURE_2D,GL_RGB,image.GetWidth(),image.GetHeight(),GL_RGB,GL_UNSIGNED_BYTE,image.GetImage());

image.Release();

m_currentFrame = 0;
m_nextFrame = 1;
m_interpol = 0.0;

//animate least 1 frame to make sure m_currentVerts get inited
SetAnimation(IDLE,IDLE);
Animate(0);

return true;
}

If you can suggest anything I would be willing to try it.
Thanks
Michael2006

As i said the skybox and texture loads fine which is Targa but my 3D model and texture wont load. As a last resort I bought the book on 3D model standards and am waiting for its delivery and that should get me started!.

Many Thanks
Michael2006

Thanks

I had a typo on "Necromicus" which realy buggered me.
Now it compiles and runs but I dont see any MD3Models.