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Added custom root transformation for pre-transform vertices post-process step

pull/261/head
Léo Terziman 2014-02-28 15:32:43 +01:00
parent 843e56c252
commit f54c85d4e6
3 changed files with 33 additions and 4 deletions
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12
code/PretransformVertices.cpp
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@ -57,7 +57,7 @@ using namespace Assimp;
// ------------------------------------------------------------------------------------------------
// Constructor to be privately used by Importer
PretransformVertices::PretransformVertices()
: configKeepHierarchy (false)
: configKeepHierarchy (false), configNormalize(false), configTransform(false), configTransformation()
{
}
@ -79,9 +79,13 @@ bool PretransformVertices::IsActive( unsigned int pFlags) const
// Setup import configuration
void PretransformVertices::SetupProperties(const Importer* pImp)
{
// Get the current value of AI_CONFIG_PP_PTV_KEEP_HIERARCHY and AI_CONFIG_PP_PTV_NORMALIZE
// Get the current value of AI_CONFIG_PP_PTV_KEEP_HIERARCHY, AI_CONFIG_PP_PTV_NORMALIZE,
// AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION and AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION
configKeepHierarchy = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_PTV_KEEP_HIERARCHY,0));
configNormalize = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_PTV_NORMALIZE,0));
configTransform = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION,0));
configTransformation = pImp->GetPropertyMatrix(AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION, aiMatrix4x4());
}
// ------------------------------------------------------------------------------------------------
@ -439,6 +443,10 @@ void PretransformVertices::Execute( aiScene* pScene)
const unsigned int iOldAnimationChannels = pScene->mNumAnimations;
const unsigned int iOldNodes = CountNodes(pScene->mRootNode);
if(configTransform) {
pScene->mRootNode->mTransformation = configTransformation;
}
// first compute absolute transformation matrices for all nodes
ComputeAbsoluteTransform(pScene->mRootNode);

6
code/PretransformVertices.h
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@ -152,8 +152,10 @@ private:
//! Configuration option: keep scene hierarchy as long as possible
bool configKeepHierarchy, configNormalize;
bool configKeepHierarchy;
bool configNormalize;
bool configTransform;
aiMatrix4x4 configTransformation;
};
} // end of namespace Assimp

19
include/assimp/config.h
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@ -233,6 +233,25 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define AI_CONFIG_PP_PTV_NORMALIZE \
"PP_PTV_NORMALIZE"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_PretransformVertices step to use
* a users defined matrix as the scene root node transformation before
* transforming vertices.
* Property type: bool. Default value: false.
*/
#define AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION \
"PP_PTV_ADD_ROOT_TRANSFORMATION"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_PretransformVertices step to use
* a users defined matrix as the scene root node transformation before
* transforming vertices. This property correspond to the 'a1' component
* of the transformation matrix.
* Property type: aiMatrix4x4.
*/
#define AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION \
"PP_PTV_ROOT_TRANSFORMATION"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_FindDegenerates step to
* remove degenerated primitives from the import - immediately.