Scarfski/assimp
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

General

Browse Source 
- Added format auto-detection to most loaders
  - Simplified BaseImporter::CanRead() with some utility methods
  - improved fast_atof -> no overruns anymore. Fuck you, irrlicht.
  - added assimp_cmd tool to allow command line model processing. Mainly adebugging tool for internal purposes, but others might find it useful, too.
  - vc8/vc9: revision number is now written to DLL version header
  - mkutil: some batch scripts to simplify tagging & building of release versions
  - some API cleanup
  - fixing some doxygen markup (+now explicit use of @file <filename>)
  - Icon for assimp_view and assimp_cmd

3DS
  - Normal vectors are not anymore inverted in some cases
  - Improved pivot handling
  - Improved handling of x-flipped meshes

Collada
  - fixed a minor bug (visual_scene element)

LWS 
  - WIP implementation. No animations yet, some bugs and crashes.
  - Animation system remains disabled, WIP code
  - many test files for LWS, but most of them test the anim support, which is, read above, currently disabled.

STL
  - fixing a log warning which appears for every model
  - added binary&ascii test spider, exported from truespace

MD3 
  - Cleaning up output tags for automatically joined player models.


IRR
  - Fixing coordinate system issues. 
  - Instance handling improved.
  - Some of the reported crashes not yet fixed.

PretransformVertices
  - Numerous performance improvements.
  - Added config option to preserve the hierarchy during the step.

RemoveRedundantMaterials
  - Added config option to specify a list of materials which are kept in every case.

UNREAL
  - Added support for the old unreal data format (*.a,*.d,*.uc)
  - tested only with exports from Milkshape
  - more Unreal stuff to come soon



git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@356 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
This commit is contained in:
aramis_acg
2009-03-05 22:32:13 +00:00
parent caaf02b0e4
commit 4bbc03332b
237 changed files with 33463 additions and 2245 deletions
Download Patch File Download Diff File Expand all files Collapse all files

219
code/SceneCombiner.cpp
View File

@@ -74,40 +74,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
namespace Assimp {
// ------------------------------------------------------------------------------------------------
/** This is a small helper data structure simplifying our work
*/
struct SceneHelper
{
SceneHelper ()
: scene (NULL)
, idlen (0)
{
id[0] = 0;
}
SceneHelper (aiScene* _scene)
: scene (_scene)
, idlen (0)
{
id[0] = 0;
}
AI_FORCE_INLINE aiScene* operator-> () const
{
return scene;
}
// scene we're working on
aiScene* scene;
// prefix to be added to all identifiers in the scene ...
char id [32];
// and its strlen()
unsigned int idlen;
};
// ------------------------------------------------------------------------------------------------
// Add a prefix to a string
inline void PrefixString(aiString& string,const char* prefix, unsigned int len)
@@ -124,6 +90,21 @@ inline void PrefixString(aiString& string,const char* prefix, unsigned int len)
string.length += len;
}
// ------------------------------------------------------------------------------------------------
// Add node identifiers to a hashing set
void SceneCombiner::AddNodeHashes(aiNode* node, std::set<unsigned int>& hashes)
{
// Add node name to hashing set if it is non-empty - empty nodes are allowed
// and they can't have any anims assigned so its absolutely safe to duplicate them.
if (node->mName.length) {
hashes.insert( SuperFastHash(node->mName.data,node->mName.length) );
}
// Process all children recursively
for (unsigned int i = 0; i < node->mNumChildren;++i)
AddNodeHashes(node->mChildren[i],hashes);
}
// ------------------------------------------------------------------------------------------------
// Add a name prefix to all nodes in a hierarchy
void SceneCombiner::AddNodePrefixes(aiNode* node, const char* prefix, unsigned int len)
@@ -136,6 +117,44 @@ void SceneCombiner::AddNodePrefixes(aiNode* node, const char* prefix, unsigned i
AddNodePrefixes(node->mChildren[i],prefix,len);
}
// ------------------------------------------------------------------------------------------------
// Search for matching names
bool SceneCombiner::FindNameMatch(const aiString& name, std::vector<SceneHelper>& input, unsigned int cur)
{
const unsigned int hash = SuperFastHash(name.data, name.length);
// Check whether we find a positive match in one of the given sets
for (unsigned int i = 0; i < input.size(); ++i) {
if (cur != i && input[i].hashes.find(hash) != input[i].hashes.end()) {
return true;
}
}
return false;
}
// ------------------------------------------------------------------------------------------------
// Add a name prefix to all nodes in a hierarchy if a hash match is found
void SceneCombiner::AddNodePrefixesChecked(aiNode* node, const char* prefix, unsigned int len,
std::vector<SceneHelper>& input, unsigned int cur)
{
ai_assert(NULL != prefix);
const unsigned int hash = SuperFastHash(node->mName.data,node->mName.length);
// Check whether we find a positive match in one of the given sets
for (unsigned int i = 0; i < input.size(); ++i) {
if (cur != i && input[i].hashes.find(hash) != input[i].hashes.end()) {
PrefixString(node->mName,prefix,len);
break;
}
}
// Process all children recursively
for (unsigned int i = 0; i < node->mNumChildren;++i)
AddNodePrefixesChecked(node->mChildren[i],prefix,len,input,cur);
}
// ------------------------------------------------------------------------------------------------
// Add an offset to all mesh indices in a node graph
void SceneCombiner::OffsetNodeMeshIndices (aiNode* node, unsigned int offset)
@@ -300,6 +319,20 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
const unsigned int random = rndGen();
src[i].idlen = ::sprintf(src[i].id,"$%.6X$_",random);
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
// Compute hashes for all identifiers in this scene and store them
// in a sorted table (for convenience I'm using std::set). We hash
// just the node and animation channel names, all identifiers except
// the material names should be caught by doing this.
AddNodeHashes(src[i]->mRootNode,src[i].hashes);
for (unsigned int a = 0; a < src[i]->mNumAnimations;++a) {
aiAnimation* anim = src[i]->mAnimations[a];
src[i].hashes.insert(SuperFastHash(anim->mName.data,anim->mName.length));
}
}
}
}
@@ -321,7 +354,11 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
dest->mNumAnimations += (*cur)->mNumAnimations;
// Combine the flags of all scenes
dest->mFlags |= (*cur)->mFlags;
// We need to process them flag-by-flag here to get correct results
// dest->mFlags ; //|= (*cur)->mFlags;
if ((*cur)->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) {
dest->mFlags |= AI_SCENE_FLAGS_NON_VERBOSE_FORMAT;
}
}
// generate the output texture list + an offset table for all texture indices
@@ -352,11 +389,10 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
// generate the output material list + an offset table for all material indices
if (dest->mNumMaterials)
{
{
aiMaterial** pip = dest->mMaterials = new aiMaterial*[dest->mNumMaterials];
cnt = 0;
for ( unsigned int n = 0; n < src.size();++n )
{
for ( unsigned int n = 0; n < src.size();++n ) {
SceneHelper* cur = &src[n];
for (unsigned int i = 0; i < (*cur)->mNumMaterials;++i)
{
@@ -369,8 +405,7 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
}
else *pip = (*cur)->mMaterials[i];
if ((*cur)->mNumTextures != dest->mNumTextures)
{
if ((*cur)->mNumTextures != dest->mNumTextures) {
// We need to update all texture indices of the mesh. So we need to search for
// a material property called '$tex.file'
@@ -391,8 +426,7 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
}
// Need to generate new, unique material names?
else if (!::strcmp( prop->mKey.data,"$mat.name" ) &&
flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_MATNAMES)
else if (!::strcmp( prop->mKey.data,"$mat.name" ) && flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_MATNAMES)
{
aiString* pcSrc = (aiString*) prop->mData;
PrefixString(*pcSrc, (*cur).id, (*cur).idlen);
@@ -458,7 +492,7 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
aiAnimation** ppAnims = dest->mAnimations = (dest->mNumAnimations
? new aiAnimation*[dest->mNumAnimations] : NULL);
for ( unsigned int n = 0; n < src.size();++n )
for ( int n = src.size()-1; n >= 0 ;--n ) /* !!! important !!! */
{
SceneHelper* cur = &src[n];
aiNode* node;
@@ -466,7 +500,9 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
// To offset or not to offset, this is the question
if (n != duplicates[n])
{
// Get full scenegraph copy
Copy( &node, (*cur)->mRootNode );
OffsetNodeMeshIndices(node,offset[duplicates[n]]);
if (flags & AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY) {
// (note:) they are already 'offseted' by offset[duplicates[n]]
@@ -481,6 +517,30 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
if (n) // src[0] is the master node
nodes.push_back(NodeAttachmentInfo( node,srcList[n-1].attachToNode,n ));
// add name prefixes?
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
// or the whole scenegraph
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
AddNodePrefixesChecked(node,(*cur).id,(*cur).idlen,src,n);
}
else AddNodePrefixes(node,(*cur).id,(*cur).idlen);
// meshes
for (unsigned int i = 0; i < (*cur)->mNumMeshes;++i) {
aiMesh* mesh = (*cur)->mMeshes[i];
// rename all bones
for (unsigned int a = 0; a < mesh->mNumBones;++a) {
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
if (!FindNameMatch(mesh->mBones[a]->mName,src,n))
continue;
}
PrefixString(mesh->mBones[a]->mName,(*cur).id,(*cur).idlen);
}
}
}
// --------------------------------------------------------------------
// Copy light sources
for (unsigned int i = 0; i < (*cur)->mNumLights;++i,++ppLights)
@@ -490,6 +550,17 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
Copy(ppLights, (*cur)->mLights[i]);
}
else *ppLights = (*cur)->mLights[i];
// Add name prefixes?
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
if (!FindNameMatch((*ppLights)->mName,src,n))
continue;
}
PrefixString((*ppLights)->mName,(*cur).id,(*cur).idlen);
}
}
// --------------------------------------------------------------------
@@ -500,6 +571,16 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
Copy(ppCameras, (*cur)->mCameras[i]);
}
else *ppCameras = (*cur)->mCameras[i];
// Add name prefixes?
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
if (!FindNameMatch((*ppCameras)->mName,src,n))
continue;
}
PrefixString((*ppCameras)->mName,(*cur).id,(*cur).idlen);
}
}
// --------------------------------------------------------------------
@@ -510,30 +591,26 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
Copy(ppAnims, (*cur)->mAnimations[i]);
}
else *ppAnims = (*cur)->mAnimations[i];
}
}
for ( unsigned int n = 1; n < src.size();++n ) {
SceneHelper* cur = &src[n];
// --------------------------------------------------------------------
// Add prefixes
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES)
{
for (unsigned int i = 0; i < (*cur)->mNumLights;++i)
PrefixString(dest->mLights[i]->mName,(*cur).id,(*cur).idlen);
// Add name prefixes?
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
if (!FindNameMatch((*ppAnims)->mName,src,n))
continue;
}
for (unsigned int i = 0; i < (*cur)->mNumCameras;++i)
PrefixString(dest->mCameras[i]->mName,(*cur).id,(*cur).idlen);
for (unsigned int i = 0; i < (*cur)->mNumAnimations;++i) {
aiAnimation* anim = dest->mAnimations[i];
PrefixString(anim->mName,(*cur).id,(*cur).idlen);
PrefixString((*ppAnims)->mName,(*cur).id,(*cur).idlen);
// don't forget to update all node animation channels
for (unsigned int a = 0; a < anim->mNumChannels;++a)
PrefixString(anim->mChannels[a]->mNodeName,(*cur).id,(*cur).idlen);
for (unsigned int a = 0; a < (*ppAnims)->mNumChannels;++a) {
if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
if (!FindNameMatch((*ppAnims)->mChannels[a]->mNodeName,src,n))
continue;
}
PrefixString((*ppAnims)->mChannels[a]->mNodeName,(*cur).id,(*cur).idlen);
}
}
AddNodePrefixes(nodes[n-1].node,(*cur).id,(*cur).idlen);
}
}
@@ -585,6 +662,11 @@ void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master,
delete deleteMe;
}
// Check flags
if (!dest->mNumMeshes || !dest->mNumMaterials) {
dest->mFlags |= AI_SCENE_FLAGS_INCOMPLETE;
}
// We're finished
}
@@ -605,10 +687,8 @@ void SceneCombiner::BuildUniqueBoneList(std::list<BoneWithHash>& asBones,
std::list<BoneWithHash>::iterator it2 = asBones.begin();
std::list<BoneWithHash>::iterator end2 = asBones.end();
for (;it2 != end2;++it2)
{
if ((*it2).first == itml)
{
for (;it2 != end2;++it2) {
if ((*it2).first == itml) {
(*it2).pSrcBones.push_back(BoneSrcIndex(p,iOffset));
break;
}
@@ -666,10 +746,7 @@ void SceneCombiner::MergeBones(aiMesh* out,std::vector<aiMesh*>::const_iterator
if (wmit != (*it).pSrcBones.begin() &&
pc->mOffsetMatrix != (*wmit).first->mOffsetMatrix)
{
DefaultLogger::get()->warn("Bones with equal names but different "
"offset matrices can't be joined at the moment. If this causes "
"problems, deactivate the OptimizeGraph-Step");
DefaultLogger::get()->warn("Bones with equal names but different offset matrices can't be joined at the moment");
continue;
}
pc->mOffsetMatrix = (*wmit).first->mOffsetMatrix;
@@ -1026,7 +1103,7 @@ void SceneCombiner::Copy (aiAnimation** _dest, const aiAnimation* src)
::memcpy(dest,src,sizeof(aiAnimation));
// and reallocate all arrays
GetArrayCopy( dest->mChannels, dest->mNumChannels );
CopyPtrArray( dest->mChannels, src->mChannels, dest->mNumChannels );
}
// ------------------------------------------------------------------------------------------------