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+ experimental STL exporter.

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- improve process handling during exporting. This is still WIP.
+ BaseProcess::RequireVerboseFormat.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1062 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
This commit is contained in:
aramis_acg
2011-08-04 11:27:13 +00:00
parent 36b3695a31
commit 45b0ccfc92
9 changed files with 385 additions and 110 deletions
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67
code/Exporter.cpp
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@@ -60,6 +60,9 @@ Here we implement only the C++ interface (Assimp::Exporter).
#include "BaseProcess.h"
#include "Importer.h" // need this for GetPostProcessingStepInstanceList()
#include "MakeVerboseFormat.h"
#include "ConvertToLHProcess.h"
namespace Assimp {
// PostStepRegistry.cpp
@@ -69,6 +72,7 @@ void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out);
// Exporter worker function prototypes. Should not be necessary to #ifndef them, it's just a prototype
void ExportSceneCollada(const char*,IOSystem*, const aiScene*);
void ExportSceneObj(const char*,IOSystem*, const aiScene*);
void ExportSceneSTL(const char*,IOSystem*, const aiScene*);
void ExportScene3DS(const char*, IOSystem*, const aiScene*) {}
/// Function pointer type of a Export worker function
@@ -110,9 +114,15 @@ ExportFormatEntry gExporters[] =
ExportFormatEntry( "obj", "Wavefront OBJ format", "obj", &ExportSceneObj),
#endif
#ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
ExportFormatEntry( "3ds", "Autodesk 3DS (legacy format)", "3ds" , &ExportScene3DS),
#ifndef ASSIMP_BUILD_NO_STL_EXPORTER
ExportFormatEntry( "stl", "Stereolithography", "stl" , &ExportSceneSTL,
aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices
),
#endif
//#ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
// ExportFormatEntry( "3ds", "Autodesk 3DS (legacy format)", "3ds" , &ExportScene3DS),
//#endif
};
@@ -258,11 +268,60 @@ aiReturn Exporter :: Export( const aiScene* pScene, const char* pFormatId, const
pp |= (nonIdempotentSteps & priv->mPPStepsApplied);
}
if (pp) {
// If the input scene is not in verbose format, but there is at least postprocessing step that relies on it,
// we need to run the MakeVerboseFormat step first.
if (scenecopy->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) {
bool verbosify = false;
for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++) {
BaseProcess* const p = pimpl->mPostProcessingSteps[a];
if (p->IsActive(pp)) {
if (p->IsActive(pp) && p->RequireVerboseFormat()) {
verbosify = true;
break;
}
}
if (verbosify || (gExporters[i].mEnforcePP & aiProcess_JoinIdenticalVertices)) {
DefaultLogger::get()->debug("export: Scene data not in verbose format, applying MakeVerboseFormat step first");
MakeVerboseFormatProcess proc;
proc.Execute(scenecopy.get());
}
}
if (pp) {
// the three 'conversion' steps need to be executed first because all other steps rely on the standard data layout
{
FlipWindingOrderProcess step;
if (step.IsActive(pp)) {
step.Execute(scenecopy.get());
}
}
{
FlipUVsProcess step;
if (step.IsActive(pp)) {
step.Execute(scenecopy.get());
}
}
{
MakeLeftHandedProcess step;
if (step.IsActive(pp)) {
step.Execute(scenecopy.get());
}
}
// dispatch other processes
for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++) {
BaseProcess* const p = pimpl->mPostProcessingSteps[a];
if (p->IsActive(pp)
&& !dynamic_cast<FlipUVsProcess*>(p)
&& !dynamic_cast<FlipWindingOrderProcess*>(p)
&& !dynamic_cast<MakeLeftHandedProcess*>(p)) {
p->Execute(scenecopy.get());
}
}