summaryrefslogtreecommitdiff
path: root/indra/llmath/llvolume.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'indra/llmath/llvolume.cpp')
-rw-r--r--indra/llmath/llvolume.cpp189
1 files changed, 45 insertions, 144 deletions
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index c7aec52698..69138f64f5 100644
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -45,16 +45,15 @@
#include "llmatrix3a.h"
#include "lloctree.h"
#include "llvolume.h"
-#include "llvolumeoctree.h"
#include "llstl.h"
#include "llsdserialize.h"
#include "llvector4a.h"
#include "llmatrix4a.h"
#include "llmeshoptimizer.h"
#include "lltimer.h"
+#include "llvolumeoctree.h"
-#include "mikktspace/mikktspace.h"
-#include "mikktspace/mikktspace.c" // insert mikktspace implementation into llvolume object file
+#include "mikktspace/mikktspace.hh"
#if LL_USESYSTEMLIBS
#include <meshoptimizer.h>
@@ -381,77 +380,6 @@ BOOL LLTriangleRayIntersect(const LLVector3& vert0, const LLVector3& vert1, cons
}
}
-class LLVolumeOctreeRebound : public LLOctreeTravelerDepthFirst<LLVolumeTriangle, LLVolumeTriangle*>
-{
-public:
- const LLVolumeFace* mFace;
-
- LLVolumeOctreeRebound(const LLVolumeFace* face)
- {
- mFace = face;
- }
-
- virtual void visit(const LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* branch)
- { //this is a depth first traversal, so it's safe to assum all children have complete
- //bounding data
- LL_PROFILE_ZONE_SCOPED_CATEGORY_VOLUME
-
- LLVolumeOctreeListener* node = (LLVolumeOctreeListener*) branch->getListener(0);
-
- LLVector4a& min = node->mExtents[0];
- LLVector4a& max = node->mExtents[1];
-
- if (!branch->isEmpty())
- { //node has data, find AABB that binds data set
- const LLVolumeTriangle* tri = *(branch->getDataBegin());
-
- //initialize min/max to first available vertex
- min = *(tri->mV[0]);
- max = *(tri->mV[0]);
-
- for (LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>::const_element_iter iter = branch->getDataBegin(); iter != branch->getDataEnd(); ++iter)
- { //for each triangle in node
-
- //stretch by triangles in node
- tri = *iter;
-
- min.setMin(min, *tri->mV[0]);
- min.setMin(min, *tri->mV[1]);
- min.setMin(min, *tri->mV[2]);
-
- max.setMax(max, *tri->mV[0]);
- max.setMax(max, *tri->mV[1]);
- max.setMax(max, *tri->mV[2]);
- }
- }
- else if (branch->getChildCount() > 0)
- { //no data, but child nodes exist
- LLVolumeOctreeListener* child = (LLVolumeOctreeListener*) branch->getChild(0)->getListener(0);
-
- //initialize min/max to extents of first child
- min = child->mExtents[0];
- max = child->mExtents[1];
- }
- else
- {
- llassert(!branch->isLeaf()); // Empty leaf
- }
-
- for (S32 i = 0; i < branch->getChildCount(); ++i)
- { //stretch by child extents
- LLVolumeOctreeListener* child = (LLVolumeOctreeListener*) branch->getChild(i)->getListener(0);
- min.setMin(min, child->mExtents[0]);
- max.setMax(max, child->mExtents[1]);
- }
-
- node->mBounds[0].setAdd(min, max);
- node->mBounds[0].mul(0.5f);
-
- node->mBounds[1].setSub(max,min);
- node->mBounds[1].mul(0.5f);
- }
-};
-
//-------------------------------------------------------------------
// statics
//-------------------------------------------------------------------
@@ -5511,8 +5439,41 @@ struct MikktData
}
}
}
-};
+ uint32_t GetNumFaces()
+ {
+ return uint32_t(face->mNumIndices / 3);
+ }
+
+ uint32_t GetNumVerticesOfFace(const uint32_t face_num)
+ {
+ return 3;
+ }
+
+ mikk::float3 GetPosition(const uint32_t face_num, const uint32_t vert_num)
+ {
+ F32* v = p[face_num * 3 + vert_num].mV;
+ return mikk::float3(v);
+ }
+
+ mikk::float3 GetTexCoord(const uint32_t face_num, const uint32_t vert_num)
+ {
+ F32* uv = tc[face_num * 3 + vert_num].mV;
+ return mikk::float3(uv[0], uv[1], 1.0f);
+ }
+
+ mikk::float3 GetNormal(const uint32_t face_num, const uint32_t vert_num)
+ {
+ F32* normal = n[face_num * 3 + vert_num].mV;
+ return mikk::float3(normal);
+ }
+
+ void SetTangentSpace(const uint32_t face_num, const uint32_t vert_num, mikk::float3 T, bool orientation)
+ {
+ S32 i = face_num * 3 + vert_num;
+ t[i].set(T.x, T.y, T.z, orientation ? 1.0f : -1.0f);
+ }
+};
bool LLVolumeFace::cacheOptimize(bool gen_tangents)
{ //optimize for vertex cache according to Forsyth method:
@@ -5524,62 +5485,9 @@ bool LLVolumeFace::cacheOptimize(bool gen_tangents)
{ // generate mikkt space tangents before cache optimizing since the index buffer may change
// a bit of a hack to do this here, but this function gets called exactly once for the lifetime of a mesh
// and is executed on a background thread
- SMikkTSpaceInterface ms;
-
- ms.m_getNumFaces = [](const SMikkTSpaceContext* pContext)
- {
- MikktData* data = (MikktData*)pContext->m_pUserData;
- LLVolumeFace* face = data->face;
- return face->mNumIndices / 3;
- };
-
- ms.m_getNumVerticesOfFace = [](const SMikkTSpaceContext* pContext, const int iFace)
- {
- return 3;
- };
-
- ms.m_getPosition = [](const SMikkTSpaceContext* pContext, float fvPosOut[], const int iFace, const int iVert)
- {
- MikktData* data = (MikktData*)pContext->m_pUserData;
- F32* v = data->p[iFace * 3 + iVert].mV;
- fvPosOut[0] = v[0];
- fvPosOut[1] = v[1];
- fvPosOut[2] = v[2];
- };
-
- ms.m_getNormal = [](const SMikkTSpaceContext* pContext, float fvNormOut[], const int iFace, const int iVert)
- {
- MikktData* data = (MikktData*)pContext->m_pUserData;
- F32* n = data->n[iFace * 3 + iVert].mV;
- fvNormOut[0] = n[0];
- fvNormOut[1] = n[1];
- fvNormOut[2] = n[2];
- };
-
- ms.m_getTexCoord = [](const SMikkTSpaceContext* pContext, float fvTexcOut[], const int iFace, const int iVert)
- {
- MikktData* data = (MikktData*)pContext->m_pUserData;
- F32* tc = data->tc[iFace * 3 + iVert].mV;
- fvTexcOut[0] = tc[0];
- fvTexcOut[1] = tc[1];
- };
-
- ms.m_setTSpaceBasic = [](const SMikkTSpaceContext* pContext, const float fvTangent[], const float fSign, const int iFace, const int iVert)
- {
- MikktData* data = (MikktData*)pContext->m_pUserData;
- S32 i = iFace * 3 + iVert;
-
- data->t[i].set(fvTangent);
- data->t[i].mV[3] = fSign;
- };
-
- ms.m_setTSpace = nullptr;
-
MikktData data(this);
-
- SMikkTSpaceContext ctx = { &ms, &data };
-
- genTangSpaceDefault(&ctx);
+ mikk::Mikktspace ctx(data);
+ ctx.genTangSpace();
//re-weld
meshopt_Stream mos[] =
@@ -5600,9 +5508,6 @@ bool LLVolumeFace::cacheOptimize(bool gen_tangents)
if (vert_count < 65535 && vert_count != 0)
{
- std::vector<U32> indices;
- indices.resize(mNumIndices);
-
//copy results back into volume
resizeVertices(vert_count);
@@ -5691,8 +5596,7 @@ void LLVolumeFace::createOctree(F32 scaler, const LLVector4a& center, const LLVe
llassert(mNumIndices % 3 == 0);
- mOctree = new LLOctreeRoot<LLVolumeTriangle, LLVolumeTriangle*>(center, size, NULL);
- new LLVolumeOctreeListener(mOctree);
+ mOctree = new LLVolumeOctree(center, size);
const U32 num_triangles = mNumIndices / 3;
// Initialize all the triangles we need
mOctreeTriangles = new LLVolumeTriangle[num_triangles];
@@ -5747,7 +5651,7 @@ void LLVolumeFace::createOctree(F32 scaler, const LLVector4a& center, const LLVe
while (!mOctree->balance()) { }
//calculate AABB for each node
- LLVolumeOctreeRebound rebound(this);
+ LLVolumeOctreeRebound rebound;
rebound.traverse(mOctree);
if (gDebugGL)
@@ -5760,12 +5664,12 @@ void LLVolumeFace::createOctree(F32 scaler, const LLVector4a& center, const LLVe
void LLVolumeFace::destroyOctree()
{
delete mOctree;
- mOctree = NULL;
+ mOctree = nullptr;
delete[] mOctreeTriangles;
- mOctreeTriangles = NULL;
+ mOctreeTriangles = nullptr;
}
-const LLOctreeNode<LLVolumeTriangle, LLVolumeTriangle*>* LLVolumeFace::getOctree() const
+const LLVolumeOctree* LLVolumeFace::getOctree() const
{
return mOctree;
}
@@ -6480,9 +6384,6 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build)
return TRUE;
}
-void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVector4a *normal,
- const LLVector2 *texcoord, U32 triangleCount, const U16* index_array, LLVector4a *tangent);
-
void LLVolumeFace::createTangents()
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_VOLUME;
@@ -6500,7 +6401,7 @@ void LLVolumeFace::createTangents()
(*ptr++).clear();
}
- CalculateTangentArray(mNumVertices, mPositions, mNormals, mTexCoords, mNumIndices / 3, mIndices, mTangents);
+ LLCalculateTangentArray(mNumVertices, mPositions, mNormals, mTexCoords, mNumIndices / 3, mIndices, mTangents);
//normalize normals
for (U32 i = 0; i < mNumVertices; i++)
@@ -7210,7 +7111,7 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
}
//adapted from Lengyel, Eric. "Computing Tangent Space Basis Vectors for an Arbitrary Mesh". Terathon Software 3D Graphics Library, 2001. http://www.terathon.com/code/tangent.html
-void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVector4a *normal,
+void LLCalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVector4a *normal,
const LLVector2 *texcoord, U32 triangleCount, const U16* index_array, LLVector4a *tangent)
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_VOLUME
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 10:49:50 +0000