Triangle::Triangle( const Vector3& v1, const Vector3& v2, const Vector3& v3){
_v1=v1; _v2=v2; _v3=v3;
_normal = (_v2-_v1).cross(_v3-_v1);
_normal.normalize();
//set normals for points to 0
_normals[0] = _normals[1] = _normals[2] = Vector3(0,0,0);
_normalsSet = false;
_dominant = getDominantAxis();
real _b[2],_c[2];
_b[0]= _dominant==0?(_v2[1]-_v1[1]):(_v2[0]-_v1[0]);
_b[1]= _dominant==2?(_v2[1]-_v1[1]):(_v2[2]-_v1[2]);
_c[0]= _dominant==0?(_v3[1]-_v1[1]):(_v3[0]-_v1[0]);
_c[1]= _dominant==2?(_v3[1]-_v1[1]):(_v3[2]-_v1[2]);
real _div1 = (_b[1]*_c[0]-_b[0]*_c[1]);
real _div2 = (_c[1]*_b[0]-_c[0]*_b[1]);
_ud1 = _c[0]/_div1;
_ud2 = - _c[1]/_div1;
_vd1 = _b[0]/_div2;
_vd2 = - _b[1]/_div2;
_px[0] = _px[1] = _px[2] = _py[0] = _py[1] = _py[2] = -1;
}
void LWObject::collectTextureCoordinates(const std::vector<LWMaterial> &materials, const FBMatrix &transform)
{
// This part is a bit messy.
// Can't help it since LW's gotta do what LW's gotta do etc.
LWTextureFuncs *textureFunctions = Manager::getSingleton()->getTextureFunctions();
LWObjectInfo *objectInfo = Manager::getSingleton()->getObjectInfo();
if((textureFunctions == 0) || (objectInfo == 0))
return;
LWMeshInfo *meshInfo = objectInfo->meshInfo(lwId, TRUE);
if(meshInfo == 0)
return;
// Get them per face (looks ugly otherwise)
for(unsigned int i = 0; i < faces.size(); ++i)
{
// If no material, no texture
if(faces[i].materialId == -1)
continue;
// Each face have different material
LWTextureID textureId = materials[faces[i].materialId].getTextureId();
if(textureId == 0)
continue;
LWTLayerID layerId = textureFunctions->firstLayer(textureId);
if(layerId == 0)
continue;
int projection = 0;
textureFunctions->getParam(layerId, TXTAG_PROJ, &projection);
for(int j = 0; j < 3; ++j)
{
if(projection == TXPRJ_UVMAP) // UV-map
{
void *map = NULL;
textureFunctions->getParam(layerId, TXTAG_VMAP, &map);
if(map == 0)
continue;
if(meshInfo->pntVSelect(meshInfo, map) != 2)
{
Manager::getSingleton()->getExporter()->printWarning(name + ": UV-map isn't 2-dimensional. Discarding.");
continue;
}
float uv[2] = { 0 };
LWPntID vertexId = vertices[faces[i].indices[j]].id;
// Finally query texture coordinates
if(meshInfo->pntVPGet(meshInfo, vertexId, faces[i].id, uv))
{
faces[i].uvs[j].x = uv[0];
faces[i].uvs[j].y = -uv[1];
faces[i].hasUvs[j] = true;
}
else if(meshInfo->pntVGet(meshInfo, vertexId, uv))
{
faces[i].uvs[j].x = uv[0];
faces[i].uvs[j].y = -uv[1];
faces[i].hasUvs[j] = true;
}
}
else // Projected mapping
{
// Normals largest absolute value defines dominant axis (in world and object space)
FBVector worldNormal = faces[i].normal;
transform.RotateVector(worldNormal);
int wAxis = getDominantAxis(worldNormal);
//int wAxis = getDominantAxis(transform.GetTransformedVector(faces[i].normal));
int oAxis = getDominantAxis(faces[i].normal);
// Position in world and object space
FBVector &vO = vertices[faces[i].indices[j]].position;
FBVector vW = transform.GetTransformedVector(vO);
double oPosition[3] = { vO.x, vO.y, vO.z };
double wPosition[3] = { vW.x, vW.y, vW.z };
double uv[2] = { 0 };
textureFunctions->evaluateUV(layerId, wAxis, oAxis, oPosition, wPosition, uv);
faces[i].uvs[j].x = static_cast<double> (uv[0]);
faces[i].uvs[j].y = static_cast<double> (-uv[1]);
faces[i].hasUvs[j] = true;
}
//faces[i].uvs2[j] = faces[i].uvs[j];
}
}
// In the name of holy spaghetti. Should clean this up a bit
for(unsigned int i = 0; i < faces.size(); ++i)
{
// If no material, no texture
if(faces[i].materialId == -1)
continue;
// Each face have different material
LWTextureID textureId = materials[faces[i].materialId].getLightmapId();
if(textureId == 0)
continue;
/*
int a = 0;
if(materials[faces[i].materialId].getName() == "Lattia")
a = 1;
*/
LWTLayerID layerId = textureFunctions->firstLayer(textureId);
if(layerId == 0)
{
//materials[faces[i].materialId].removeLightmap();
continue;
}
int projection = 0;
textureFunctions->getParam(layerId, TXTAG_PROJ, &projection);
for(int j = 0; j < 3; ++j)
{
if(projection == TXPRJ_UVMAP) // UV-map
{
void *map = 0;
textureFunctions->getParam(layerId, TXTAG_VMAP, &map);
if(meshInfo->pntVSelect(meshInfo, map) != 2)
{
Manager::getSingleton()->getExporter()->printWarning(name + ": No actual UV-map defined. Discarding.");
//materials[faces[i].materialId].removeLightmap();
continue;
}
if(map == 0)
{
//materials[faces[i].materialId].removeLightmap();
continue;
}
if(meshInfo->pntVSelect(meshInfo, map) != 2)
{
Manager::getSingleton()->getExporter()->printWarning(name + ": UV-map isn't 2-dimensional. Discarding.");
//materials[faces[i].materialId].removeLightmap();
continue;
}
float uv[2] = { 0 };
LWPntID vertexId = vertices[faces[i].indices[j]].id;
// Finally query texture coordinates
if(meshInfo->pntVPGet(meshInfo, vertexId, faces[i].id, uv))
{
faces[i].uvs2[j].x = uv[0];
faces[i].uvs2[j].y = -uv[1];
if(faces[i].hasUvs[j] == false)
{
faces[i].uvs[j].x = faces[i].uvs2[j].x;
faces[i].uvs[j].y = faces[i].uvs2[j].y;
}
faces[i].hasUvs[j] = true;
}
else if(meshInfo->pntVGet(meshInfo, vertexId, uv))
{
faces[i].uvs2[j].x = uv[0];
faces[i].uvs2[j].y = -uv[1];
if(faces[i].hasUvs[j] == false)
{
faces[i].uvs[j].x = faces[i].uvs2[j].x;
faces[i].uvs[j].y = faces[i].uvs2[j].y;
}
faces[i].hasUvs[j] = true;
}
//else
// materials[faces[i].materialId].removeLightmap();
}
//else
// materials[faces[i].materialId].removeLightmap();
/*
else // Projected mapping
{
// Normals largest absolute value defines dominant axis (in world and object space)
FBVector worldNormal = faces[i].normal;
transform.RotateVector(worldNormal);
int wAxis = getDominantAxis(worldNormal);
int oAxis = getDominantAxis(faces[i].normal);
// Position in world and object space
Vector &vO = vertices[faces[i].indices[j]].position;
Vector vW = transform.GetTransformedVector(vO);
double oPosition[3] = { vO.x, vO.y, vO.z };
double wPosition[3] = { vW.x, vW.y, vW.z };
double uv[2] = { 0 };
textureFunctions->evaluateUV(layerId, wAxis, oAxis, oPosition, wPosition, uv);
faces[i].uvs2[j].x = static_cast<double> (uv[0]);
faces[i].uvs2[j].y = static_cast<double> (-uv[1]);
if(faces[i].hasUvs[j] == false)
{
faces[i].uvs[j].x = faces[i].uvs2[j].x;
faces[i].uvs[j].y = faces[i].uvs2[j].y;
}
faces[i].hasUvs[j] = true;
}
*/
}
}
if(meshInfo->destroy)
meshInfo->destroy(meshInfo);
}