From 6c5e45d906f9b587f20eadb2981bc5514b00d50b Mon Sep 17 00:00:00 2001
From: Shon Ferguson <shonferg@users.sourceforge.net>
Date: Tue, 13 Jun 2006 22:44:35 +0000
Subject: [PATCH] Implemented repositioning of geometry to line up with skins.
---
obj/NiNode.cpp | 100 +++++++++++++++++++++++++++++++++++++------------
obj/NiNode.h | 2 +
2 files changed, 78 insertions(+), 24 deletions(-)
diff --git a/obj/NiNode.cpp b/obj/NiNode.cpp
index fbb1fea0..c77a97da 100644
--- a/obj/NiNode.cpp
+++ b/obj/NiNode.cpp
@@ -6,6 +6,7 @@ All rights reserved. Please see niflib.h for licence. */
#include "NiDynamicEffect.h"
#include "NiSkinInstance.h"
#include "NiSkinData.h"
+#include "NiTriBasedGeom.h"
//Definition of TYPE constant
const Type NiNode::TYPE("NiNode", &NI_NODE_PARENT::TYPE );
@@ -227,28 +228,79 @@ void NiNode::GoToSkeletonBindPosition() {
}
}
- //All the world positoins have been calculated, so use them to set the local
- //positoins
-
- ////Put skeleton root into world positions if it's not already there
- //if ( world_positions.find( this ) == world_positions.end() ) {
- // world_positions[this] = GetWorldTransform();
- //}
-
- ////Now loop through all nodes in the world_positions map
- //for ( map< NiNodeRef, Matrix44>::iterator it = world_positions.begin(); it != world_positions.end(); ++it ) {
- // if ( world_positions.find(it->first->GetParent()) != world_positions.end() ) {
- // Matrix44 res_mat = world_positions[it->first] * world_positions[it->first->GetParent()].Inverse();
-
- // //Store result in node's local transforms
- // it->first->SetLocalRotation( Matrix33(
- // res_mat[0][0], res_mat[0][1], res_mat[0][2],
- // res_mat[1][0], res_mat[1][1], res_mat[1][2],
- // res_mat[2][0], res_mat[2][1], res_mat[2][2]
- // ) );
- // it->first->SetLocalTranslation( Vector3( res_mat[3][0], res_mat[3][1], res_mat[3][2] ) );
- // //Vector3 scale = res_mat.GetScale();
- // it->first->SetLocalScale( 1.0f );//scale.x + scale.y + scale.z / 3.0f );
- // }
- //}
+ //Search for any NiTriBasedGeom classes lower in the scene graph and
+ //reposition them
+ RepositionGeom(this);
+}
+
+void NiNode::RepositionGeom( NiAVObjectRef root ) {
+ //Check if this is a NiTriBasedGeom
+ NiTriBasedGeomRef geom = DynamicCast<NiTriBasedGeom>(root);
+
+ if ( geom != NULL ) {
+ //This is a NiTriBasedGeom class
+ //Get NiSkinInstance and NiSkinData
+
+ NiSkinInstanceRef skin_inst = geom->GetSkinInstance();
+
+ if ( skin_inst == NULL ) {
+ return;
+ }
+
+ NiSkinDataRef skin_data = skin_inst->GetSkinData();
+
+ if ( skin_data == NULL ) {
+ return;
+ }
+
+ //Get bone info
+ vector<NiNodeRef> bones = skin_inst->GetBones();
+ vector<SkinData> bone_data = skin_data->GetBoneData();
+
+ //Make sure the counts match
+ if ( bones.size() != bone_data.size() ) {
+ throw runtime_error( "Bone counts in NiSkinInstance and attached NiSkinData must match" );
+ }
+
+ //There must be at least one bone to do anything
+ if ( bones.size() == 0 ) {
+ return;
+ }
+
+ //Use first bone (arbitrary choice)
+ Matrix44 offset_mat(
+ bone_data[0].rotation[0][0], bone_data[0].rotation[0][1], bone_data[0].rotation[0][2], 0.0f,
+ bone_data[0].rotation[1][0], bone_data[0].rotation[1][1], bone_data[0].rotation[1][2], 0.0f,
+ bone_data[0].rotation[2][0], bone_data[0].rotation[2][1], bone_data[0].rotation[2][2], 0.0f,
+ bone_data[0].translation.x, bone_data[0].translation.y, bone_data[0].translation.z, 1.0f
+ );
+
+ //Get built up rotations to the root of the skeleton from this bone
+ Matrix44 bone_mat = bones[0]->GetWorldTransform();
+
+ Matrix44 world_mat = offset_mat * bone_mat;
+
+ Matrix44 result_mat = world_mat * geom->GetParent()->GetWorldTransform().Inverse();
+
+ //--Set TriShape Local Position to Result--//
+ geom->SetLocalRotation( result_mat.GetRotation() );
+ geom->SetLocalTranslation( result_mat.GetTranslation() );
+ geom->SetLocalScale( 1.0f );
+
+ //TODO: Calculate the correct adjustment for the NiSkinData overall matrix
+ //due to this change
+
+ return;
+ }
+
+ //Check if this is a NiNode
+ NiNodeRef node = DynamicCast<NiNode>(root);
+
+ if ( node != NULL ) {
+ //This is a NiNode, call this function on all children
+ vector<NiAVObjectRef> children = node->GetChildren();
+ for ( uint i = 0; i < children.size(); ++i ) {
+ RepositionGeom( children[i] );
+ }
+ }
}
\ No newline at end of file
diff --git a/obj/NiNode.h b/obj/NiNode.h
index 8a1be016..8c0d2b0e 100644
--- a/obj/NiNode.h
+++ b/obj/NiNode.h
@@ -66,6 +66,8 @@ public:
/*! Should not be called directly */
void SetSkinFlag( bool n );
+private:
+ void NiNode::RepositionGeom( NiAVObjectRef root );
protected:
list<NiSkinInstance*> skins;
NI_NODE_MEMBERS
--
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