Hi,
I've got a strange problem in my engine. I can load and render some quake 3 maps without any problems. At the moment I'm not rendering meshes, patches or billboards; only faces are loaded. While some maps render fine, others render with holes I can't find anything in any of the Q3 map specs that explains this, anyone have any ideas?
Here is a "normal" map:
and here is a "holey" map:
finally here is the code that takes a Quake map polygon and splits it into triangles:
for(vector<stQ3Face>::const_iterator it = faces.begin();
it != faces.end(); ++it) {
//At the moment only handle normal polygons
if ((*it).type != 1) {
continue;
}
int end = (*it).startVertexIndex + (*it).totalVertices;
for (int i = (*it).startVertexIndex; i < end - 1; i++) {
WorldTriangle newTriangle;
newTriangle.m_Index[0] = (*it).startVertexIndex;
newTriangle.m_Index[1] = i + 1;
newTriangle.m_Index[2] = i;
newTriangle.m_TexCoords[0] = vertices[newTriangle.m_Index[0]].texCoord;
newTriangle.m_TexCoords[1] = vertices[newTriangle.m_Index[1]].texCoord;
newTriangle.m_TexCoords[2] = vertices[newTriangle.m_Index[2]].texCoord;
newTriangle.m_TextureName = path(textures[(*it).texID].file).leaf();
slVec3 vec1, vec2;
vec1 = m_VertexData[newTriangle.m_Index[1]].m_Pos - m_VertexData[newTriangle.m_Index[0]].m_Pos;
vec2 = m_VertexData[newTriangle.m_Index[2]].m_Pos - m_VertexData[newTriangle.m_Index[0]].m_Pos;
slVec3Cross(&newTriangle.m_FaceNormal, &vec1, &vec2);
slVec3Normalize(&newTriangle.m_FaceNormal, &newTriangle.m_FaceNormal);
m_TriangleData.push_back(newTriangle);
}
}
and here is a "holey" map:
finally here is the code that takes a Quake map polygon and splits it into triangles:
