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-rw-r--r--indra/llmath/llvolume.cpp82
1 files changed, 45 insertions, 37 deletions
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index 9d2d157c76..5ffc61ce9c 100644
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -87,6 +87,8 @@ const F32 SKEW_MAX = 0.95f;
const F32 SCULPT_MIN_AREA = 0.002f;
const S32 SCULPT_MIN_AREA_DETAIL = 1;
+#define GEN_TRI_STRIP 0
+
BOOL check_same_clock_dir( const LLVector3& pt1, const LLVector3& pt2, const LLVector3& pt3, const LLVector3& norm)
{
LLVector3 test = (pt2-pt1)%(pt3-pt2);
@@ -5079,7 +5081,9 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build)
if (!partial_build)
{
+#if GEN_TRI_STRIP
mTriStrip.clear();
+#endif
S32 idxs[] = {0,1,(grid_size+1)+1,(grid_size+1)+1,(grid_size+1),0};
for(S32 gx = 0;gx<grid_size;gx++)
{
@@ -5093,6 +5097,7 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build)
mIndices.push_back(vtop+(gy*(grid_size+1))+gx+idxs[i]);
}
+#if GEN_TRI_STRIP
if (gy == 0)
{
mTriStrip.push_back((gx+1)*(grid_size+1));
@@ -5108,6 +5113,7 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build)
{
mTriStrip.push_back(gy+1+gx*(grid_size+1));
}
+#endif
}
else
{
@@ -5116,6 +5122,7 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build)
mIndices.push_back(vtop+(gy*(grid_size+1))+gx+idxs[i]);
}
+#if GEN_TRI_STRIP
if (gy == 0)
{
mTriStrip.push_back(gx*(grid_size+1));
@@ -5130,15 +5137,18 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build)
{
mTriStrip.push_back(gy+1+(gx+1)*(grid_size+1));
}
+#endif
}
}
}
+#if GEN_TRI_STRIP
if (mTriStrip.size()%2 == 1)
{
mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]);
}
+#endif
}
return TRUE;
@@ -5508,6 +5518,7 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build)
mIndices[3*i+v2] = i + 1;
}
+#if GEN_TRI_STRIP
//make tri strip
if (mTypeMask & OPEN_MASK)
{
@@ -5550,6 +5561,7 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build)
mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]);
}
}
+#endif
}
return TRUE;
@@ -5557,6 +5569,7 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build)
void LLVolumeFace::makeTriStrip()
{
+#if GEN_TRI_STRIP
for (U32 i = 0; i < mIndices.size(); i+=3)
{
U16 i0 = mIndices[i];
@@ -5585,6 +5598,7 @@ void LLVolumeFace::makeTriStrip()
{
mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]);
}
+#endif
}
void LLVolumeFace::createBinormals()
@@ -5710,12 +5724,6 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
mHasBinormals = FALSE;
}
-
- LLVector3& face_min = mExtents[0];
- LLVector3& face_max = mExtents[1];
-
- mCenter.clearVec();
-
S32 begin_stex = llfloor( profile[mBeginS].mV[2] );
S32 num_s = ((mTypeMask & INNER_MASK) && (mTypeMask & FLAT_MASK) && mNumS > 2) ? mNumS/2 : mNumS;
@@ -5771,15 +5779,6 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
mVertices[cur_vertex].mNormal = LLVector3(0,0,0);
mVertices[cur_vertex].mBinormal = LLVector3(0,0,0);
-
- if (cur_vertex == 0)
- {
- face_min = face_max = mesh[i].mPos;
- }
- else
- {
- update_min_max(face_min, face_max, mesh[i].mPos);
- }
cur_vertex++;
@@ -5813,12 +5812,22 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
mVertices[cur_vertex].mNormal = LLVector3(0,0,0);
mVertices[cur_vertex].mBinormal = LLVector3(0,0,0);
- update_min_max(face_min,face_max,mesh[i].mPos);
-
cur_vertex++;
}
}
+
+ //get bounding box for this side
+ LLVector3& face_min = mExtents[0];
+ LLVector3& face_max = mExtents[1];
+ mCenter.clearVec();
+
+ face_min = face_max = mVertices[0].mPosition;
+ for (U32 i = 1; i < mVertices.size(); ++i)
+ {
+ update_min_max(face_min, face_max, mVertices[i].mPosition);
+ }
+
mCenter = (face_min + face_max) * 0.5f;
S32 cur_index = 0;
@@ -5827,13 +5836,17 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
if (!partial_build)
{
+#if GEN_TRI_STRIP
mTriStrip.clear();
+#endif
// Now we generate the indices.
for (t = 0; t < (mNumT-1); t++)
{
+#if GEN_TRI_STRIP
//prepend terminating index to strip
mTriStrip.push_back(mNumS*t);
+#endif
for (s = 0; s < (mNumS-1); s++)
{
@@ -5844,6 +5857,7 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
mIndices[cur_index++] = s+1 + mNumS*t; //bottom right
mIndices[cur_index++] = s+1 + mNumS*(t+1); //top right
+#if GEN_TRI_STRIP
if (s == 0)
{
mTriStrip.push_back(s+mNumS*t);
@@ -5851,6 +5865,7 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
}
mTriStrip.push_back(s+1+mNumS*t);
mTriStrip.push_back(s+1+mNumS*(t+1));
+#endif
mEdge[cur_edge++] = (mNumS-1)*2*t+s*2+1; //bottom left/top right neighbor face
if (t < mNumT-2) { //top right/top left neighbor face
@@ -5892,44 +5907,37 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build)
}
mEdge[cur_edge++] = (mNumS-1)*2*t+s*2; //top right/bottom left neighbor face
}
+#if GEN_TRI_STRIP
//append terminating vertex to strip
mTriStrip.push_back(mNumS-1+mNumS*(t+1));
+#endif
}
+#if GEN_TRI_STRIP
if (mTriStrip.size()%2 == 1)
{
mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]);
}
+#endif
}
//generate normals
for (U32 i = 0; i < mIndices.size()/3; i++) //for each triangle
{
- const S32 i0 = mIndices[i*3+0];
- const S32 i1 = mIndices[i*3+1];
- const S32 i2 = mIndices[i*3+2];
- const VertexData& v0 = mVertices[i0];
- const VertexData& v1 = mVertices[i1];
- const VertexData& v2 = mVertices[i2];
+ const U16* idx = &(mIndices[i*3]);
+
+ VertexData* v[] =
+ { &mVertices[idx[0]], &mVertices[idx[1]], &mVertices[idx[2]] };
//calculate triangle normal
- LLVector3 norm = (v0.mPosition-v1.mPosition) % (v0.mPosition-v2.mPosition);
+ LLVector3 norm = (v[0]->mPosition-v[1]->mPosition) % (v[0]->mPosition-v[2]->mPosition);
- for (U32 j = 0; j < 3; j++)
- { //add triangle normal to vertices
- const S32 idx = mIndices[i*3+j];
- mVertices[idx].mNormal += norm; // * (weight_sum - d[j])/weight_sum;
- }
+ v[0]->mNormal += norm;
+ v[1]->mNormal += norm;
+ v[2]->mNormal += norm;
//even out quad contributions
- if ((i & 1) == 0)
- {
- mVertices[i2].mNormal += norm;
- }
- else
- {
- mVertices[i1].mNormal += norm;
- }
+ v[i%2+1]->mNormal += norm;
}
// adjust normals based on wrapping and stitching
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 21:02:03 +0000