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ColladaExport: Added support for per-face materials

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This commit is contained in:
Latif Khalifa
2013-07-16 14:49:40 +02:00
parent b844b63f72
commit 1852656661
2 changed files with 103 additions and 49 deletions
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151
indra/newview/daeexport.cpp
View File

@@ -75,6 +75,8 @@
#include "llview.h"
#include "llselectmgr.h"
#define ANY_FACE -1
extern LLUUID gAgentID;
//Typedefs used in other files, using here for consistency.
@@ -223,6 +225,62 @@ void DAESaver::addSource(daeElement* mesh, const char* src_id, std::string param
}
}
void DAESaver::addPolygons(daeElement* mesh, const char* geomID, const char* materialID, LLViewerObject* obj, int face_to_include)
{
domPolylist* polylist = daeSafeCast<domPolylist>(mesh->add("polylist"));
polylist->setMaterial(materialID);
// Vertices semantic
{
domInputLocalOffset* input = daeSafeCast<domInputLocalOffset>(polylist->add("input"));
input->setSemantic("VERTEX");
input->setOffset(0);
input->setSource(llformat("#%s-%s", geomID, "vertices").c_str());
}
// Normals semantic
{
domInputLocalOffset* input = daeSafeCast<domInputLocalOffset>(polylist->add("input"));
input->setSemantic("NORMAL");
input->setOffset(0);
input->setSource(llformat("#%s-%s", geomID, "normals").c_str());
}
// UV semantic
{
domInputLocalOffset* input = daeSafeCast<domInputLocalOffset>(polylist->add("input"));
input->setSemantic("TEXCOORD");
input->setOffset(0);
input->setSource(llformat("#%s-%s", geomID, "map0").c_str());
}
// Save indices
domP* p = daeSafeCast<domP>(polylist->add("p"));
domPolylist::domVcount *vcount = daeSafeCast<domPolylist::domVcount>(polylist->add("vcount"));
S32 index_offset = 0;
S32 num_tris = 0;
for (S32 face_num = 0; face_num < obj->getVolume()->getNumVolumeFaces(); face_num++)
{
const LLVolumeFace* face = (LLVolumeFace*)&obj->getVolume()->getVolumeFace(face_num);
if (face_to_include == ANY_FACE || face_to_include == face_num)
{
for (S32 i = 0; i < face->mNumIndices; i++)
{
U16 index = index_offset + face->mIndices[i];
(p->getValue()).append(index);
if (i % 3 == 0)
{
(vcount->getValue()).append(3);
num_tris++;
}
}
}
index_offset += face->mNumVertices;
}
polylist->setCount(num_tris);
}
bool DAESaver::saveDAE(std::string filename)
{
DAE dae;
@@ -249,9 +307,6 @@ bool DAESaver::saveDAE(std::string filename)
contributor->add("authoring_tool")->setCharData("Singularity Viewer Collada Export");
daeElement* geomLib = root->add("library_geometries");
daeElement* scene = root->add("library_visual_scenes visual_scene");
scene->setAttribute("id", "Scene");
scene->setAttribute("name", "Scene");
S32 prim_nr = 0;
for (obj_info_t::iterator obj_iter = mObjects.begin(); obj_iter != mObjects.end(); ++obj_iter)
@@ -273,6 +328,7 @@ bool DAESaver::saveDAE(std::string filename)
std::vector<F32> uv_data;
S32 num_faces = obj->getVolume()->getNumVolumeFaces();
for (S32 face_num = 0; face_num < num_faces; face_num++)
{
const LLVolumeFace* face = (LLVolumeFace*)&obj->getVolume()->getVolumeFace(face_num);
@@ -313,62 +369,47 @@ bool DAESaver::saveDAE(std::string filename)
}
// Add triangles
domPolylist* polylist = daeSafeCast<domPolylist>(mesh->add("polylist"));
polylist->setMaterial("mtl");
// Vertices semantic
{
domInputLocalOffset* input = daeSafeCast<domInputLocalOffset>(polylist->add("input"));
input->setSemantic("VERTEX");
input->setOffset(0);
input->setSource(llformat("#%s-%s", geomID, "vertices").c_str());
}
// Normals semantic
{
domInputLocalOffset* input = daeSafeCast<domInputLocalOffset>(polylist->add("input"));
input->setSemantic("NORMAL");
input->setOffset(0);
input->setSource(llformat("#%s-%s", geomID, "normals").c_str());
}
// UV semantic
{
domInputLocalOffset* input = daeSafeCast<domInputLocalOffset>(polylist->add("input"));
input->setSemantic("TEXCOORD");
input->setOffset(0);
input->setSource(llformat("#%s-%s", geomID, "map-0").c_str());
}
// Save indices
domP* p = daeSafeCast<domP>(polylist->add("p"));
domPolylist::domVcount *vcount = daeSafeCast<domPolylist::domVcount>(polylist->add("vcount"));
S32 index_offset = 0;
S32 num_tris = 0;
for (S32 face_num = 0; face_num < num_faces; face_num++)
{
const LLVolumeFace* face = (LLVolumeFace*)&obj->getVolume()->getVolumeFace(face_num);
for (S32 i = 0; i < face->mNumIndices; i++)
{
U16 index = index_offset + face->mIndices[i];
(p->getValue()).append(index);
if (i % 3 == 0)
{
(vcount->getValue()).append(3);
num_tris++;
}
}
index_offset += face->mNumVertices;
addPolygons(mesh, geomID, llformat("%s-f%d-%s", geomID, face_num, "material").c_str(), obj, face_num);
}
// Effects (face color, alpha)
daeElement* effects = root->add("library_effects");
for (S32 face_num = 0; face_num < num_faces; face_num++)
{
LLTextureEntry* te = obj->getTE(face_num);
LLColor4 color = te->getColor();
domEffect* effect = (domEffect*)effects->add("effect");
effect->setId(llformat("%s-f%d-%s", geomID, face_num, "fx").c_str());
daeElement* t = effect->add("profile_COMMON technique");
t->setAttribute("sid", "common");
domElement* phong = t->add("phong");
phong->add("diffuse color")->setCharData(llformat("%f %f %f 1", color.mV[0], color.mV[1], color.mV[2]).c_str());
phong->add("transparency float")->setCharData(llformat("%f", color.mV[3]).c_str());
}
// Materials
daeElement* materials = root->add("library_materials");
for (S32 face_num = 0; face_num < num_faces; face_num++)
{
domMaterial* mat = (domMaterial*)materials->add("material");
mat->setId(llformat("%s-f%d-%s", geomID, face_num, "material").c_str());
domElement* matEffect = mat->add("instance_effect");
matEffect->setAttribute("url", llformat("#%s-f%d-%s", geomID, face_num, "fx").c_str());
}
polylist->setCount(num_tris);
// Add scene
daeElement* scene = root->add("library_visual_scenes visual_scene");
scene->setAttribute("id", "Scene");
scene->setAttribute("name", "Scene");
daeElement* node = scene->add("node");
node->setAttribute("type", "NODE");
node->setAttribute("id", geomID);
node->setAttribute("name", geomID);
// Set tranform matrix (object position, rotation and scale)
// Set tranform matrix (node position, rotation and scale)
domMatrix* matrix = (domMatrix*)node->add("matrix");
LLXform srt;
srt.setScale(obj->getScale());
@@ -380,8 +421,20 @@ bool DAESaver::saveDAE(std::string filename)
for (int j=0; j<4; j++)
(matrix->getValue()).append(m4.mMatrix[j][i]);
// Geometry of the node
daeElement* nodeGeometry = node->add("instance_geometry");
// Bind materials
daeElement* tq = nodeGeometry->add("bind_material technique_common");
for (S32 face_num = 0; face_num < num_faces; face_num++)
{
daeElement* instanceMaterial = tq->add("instance_material");
instanceMaterial->setAttribute("symbol", llformat("%s-f%d-%s", geomID, face_num, "material").c_str());
instanceMaterial->setAttribute("target", llformat("#%s-f%d-%s", geomID, face_num, "material").c_str());
}
nodeGeometry->setAttribute("url", llformat("#%s-%s", geomID, "mesh").c_str());
}
root->add("scene instance_visual_scene")->setAttribute("url", "#Scene");

1
indra/newview/daeexport.h
View File

@@ -41,6 +41,7 @@ public:
private:
void addSource(daeElement* mesh, const char* src_id, std::string params, const std::vector<F32> &vals);
void addPolygons(daeElement* mesh, const char* geomID, const char* materialID, LLViewerObject* obj, int face_to_include);
};
#endif // DAEEXPORT_H_