diff options
Diffstat (limited to 'indra/llmath/llvolume.cpp')
| -rw-r--r-- | indra/llmath/llvolume.cpp | 672 |
1 files changed, 518 insertions, 154 deletions
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp index 3c1dd11842..c563af592f 100644 --- a/indra/llmath/llvolume.cpp +++ b/indra/llmath/llvolume.cpp @@ -48,13 +48,6 @@ #include "llstl.h" #include "llsdserialize.h" -#ifdef LL_STANDALONE -# include <zlib.h> -#else -# include "zlib/zlib.h" -#endif - - #define DEBUG_SILHOUETTE_BINORMALS 0 #define DEBUG_SILHOUETTE_NORMALS 0 // TomY: Use this to display normals using the silhouette #define DEBUG_SILHOUETTE_EDGE_MAP 0 // DaveP: Use this to display edge map using the silhouette @@ -1681,7 +1674,9 @@ LLVolume::LLVolume(const LLVolumeParams ¶ms, const F32 detail, const BOOL ge mFaceMask = 0x0; mDetail = detail; mSculptLevel = -2; - + mIsTetrahedron = FALSE; + mLODScaleBias.setVec(1,1,1); + // set defaults if (mParams.getPathParams().getCurveType() == LL_PCODE_PATH_FLEXIBLE) { @@ -1696,7 +1691,8 @@ LLVolume::LLVolume(const LLVolumeParams ¶ms, const F32 detail, const BOOL ge mGenerateSingleFace = generate_single_face; generate(); - if (mParams.getSculptID().isNull() && params.getSculptType() == LL_SCULPT_TYPE_NONE) + + if (mParams.getSculptID().isNull() && mParams.getSculptType() == LL_SCULPT_TYPE_NONE) { createVolumeFaces(); } @@ -1879,6 +1875,24 @@ bool LLVolumeFace::VertexData::operator==(const LLVolumeFace::VertexData& rhs)co return true; } +bool LLVolumeFace::VertexData::compareNormal(const LLVolumeFace::VertexData& rhs, F32 angle_cutoff) const +{ + bool retval = false; + if (rhs.mPosition == mPosition && rhs.mTexCoord == mTexCoord) + { + if (angle_cutoff > 1.f) + { + retval = (mNormal == rhs.mNormal); + } + else + { + F32 cur_angle = rhs.mNormal*mNormal; + retval = cur_angle > angle_cutoff; + } + } + + return retval; +} BOOL LLVolume::createVolumeFacesFromFile(const std::string& file_name) { @@ -1896,19 +1910,19 @@ BOOL LLVolume::createVolumeFacesFromFile(const std::string& file_name) BOOL LLVolume::createVolumeFacesFromStream(std::istream& is) { mSculptLevel = -1; // default is an error occured - + LLSD header; { if (!LLSDSerialize::deserialize(header, is, 1024*1024*1024)) { - llwarns << "not a valid mesh asset!" << llendl; + llwarns << "Mesh header parse error. Not a valid mesh asset!" << llendl; return FALSE; } } std::string nm[] = { - "impostor", + "lowest_lod", "low_lod", "medium_lod", "high_lod" @@ -1916,115 +1930,55 @@ BOOL LLVolume::createVolumeFacesFromStream(std::istream& is) S32 lod = llclamp((S32) mDetail, 0, 3); - while (lod < 4 && header[nm[lod]]["offset"].asInteger() == -1) + while (lod < 4 && + (header[nm[lod]]["offset"].asInteger() == -1 || + header[nm[lod]]["size"].asInteger() == 0 )) { ++lod; } if (lod >= 4) { - llwarns << "Couldn't load model for given lod" << llendl; - return FALSE; - } - - is.seekg(header[nm[lod]]["offset"].asInteger(), std::ios_base::cur); - - - U8* result = NULL; - U32 cur_size = 0; - - { - //input stream is now pointing at a zlib compressed block of LLSD - //decompress block - z_stream strm; - - const U32 CHUNK = 65536; - - S32 size = header[nm[lod]]["size"].asInteger(); - U8 *in = new U8[size]; - is.read((char*) in, size); - - U8 out[CHUNK]; - - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; - strm.avail_in = size; - strm.next_in = in; - - S32 ret = inflateInit(&strm); + lod = llclamp((S32) mDetail, 0, 3); - if (ret != Z_OK) + while (lod >= 0 && + (header[nm[lod]]["offset"].asInteger() == -1 || + header[nm[lod]]["size"].asInteger() == 0) ) { - llerrs << "WTF?" << llendl; + --lod; } - - do - { - strm.avail_out = CHUNK; - strm.next_out = out; - ret = inflate(&strm, Z_NO_FLUSH); - if (ret == Z_STREAM_ERROR) - { - inflateEnd(&strm); - free(result); - delete [] in; - return FALSE; - } - - switch (ret) - { - case Z_NEED_DICT: - ret = Z_DATA_ERROR; - case Z_DATA_ERROR: - case Z_MEM_ERROR: - inflateEnd(&strm); - free(result); - delete [] in; - return FALSE; - break; - } - - U32 have = CHUNK-strm.avail_out; - result = (U8*) realloc(result, cur_size + have); - memcpy(result+cur_size, out, have); - cur_size += have; - - } while (strm.avail_out == 0); - - inflateEnd(&strm); - delete [] in; - - if (ret != Z_STREAM_END) + if (lod < 0) { - free(result); + llwarns << "Mesh header missing LOD offsets. Not a valid mesh asset!" << llendl; return FALSE; } } - //result now points to the decompressed LLSD block + is.seekg(header[nm[lod]]["offset"].asInteger(), std::ios_base::cur); + + return unpackVolumeFaces(is, header[nm[lod]]["size"].asInteger()); +} +bool LLVolume::unpackVolumeFaces(std::istream& is, S32 size) +{ + //input stream is now pointing at a zlib compressed block of LLSD + //decompress block LLSD mdl; - + if (!unzip_llsd(mdl, is, size)) { - std::string res_str((char*) result, cur_size); - std::istringstream istr(res_str); - - if (!LLSDSerialize::deserialize(mdl, istr, cur_size)) - { - llwarns << "not a valid mesh asset!" << llendl; - return FALSE; - } + llwarns << "not a valid mesh asset!" << llendl; + return false; } - - - free(result); - - + { U32 face_count = mdl.size(); + if (face_count == 0) + { + llerrs << "WTF?" << llendl; + } + mVolumeFaces.resize(face_count); for (U32 i = 0; i < face_count; ++i) @@ -2036,12 +1990,13 @@ BOOL LLVolume::createVolumeFacesFromStream(std::istream& is) LLVolumeFace& face = mVolumeFaces[i]; - face.mHasBinormals = FALSE; + face.mHasBinormals = false; //copy out indices face.mIndices.resize(idx.size()/2); - if (idx.empty()) + if (idx.empty() || face.mIndices.size() < 3) { //why is there an empty index list? + llerrs <<"WTF?" << llendl; continue; } @@ -2055,18 +2010,55 @@ BOOL LLVolume::createVolumeFacesFromStream(std::istream& is) U32 num_verts = pos.size()/(3*2); face.mVertices.resize(num_verts); + if (mdl[i].has("Weights")) + { + face.mWeights.resize(num_verts); + LLSD::Binary weights = mdl[i]["Weights"]; + + LLSD::Binary::iterator iter = weights.begin(); + + U32 cur_vertex = 0; + while (iter != weights.end()) + { + const S32 END_INFLUENCES = 0xFF; + U8 joint = *(iter++); + + U32 cur_influence = 0; + while (joint != END_INFLUENCES) + { + U16 influence = *(iter++); + influence = influence << 8; + influence |= *(iter++); + + F32 w = llmin((F32) influence / 65535.f, 0.99999f); + face.mWeights[cur_vertex].mV[cur_influence++] = (F32) joint + w; + + if (cur_influence >= 4) + { + joint = END_INFLUENCES; + } + else + { + joint = *(iter++); + } + } + + cur_vertex++; + iter++; + } + } + LLVector3 min_pos; LLVector3 max_pos; LLVector2 min_tc; LLVector2 max_tc; + min_pos.setValue(mdl[i]["PositionDomain"]["Min"]); max_pos.setValue(mdl[i]["PositionDomain"]["Max"]); min_tc.setValue(mdl[i]["TexCoord0Domain"]["Min"]); max_tc.setValue(mdl[i]["TexCoord0Domain"]["Max"]); - F32 scale = llclamp((F32) mdl[i]["Scale"].asReal(), 1.f, 10.f); - LLVector3 pos_range = max_pos - min_pos; LLVector2 tc_range = max_tc - min_tc; @@ -2084,8 +2076,6 @@ BOOL LLVolume::createVolumeFacesFromStream(std::istream& is) (F32) v[1] / 65535.f * pos_range.mV[1] + min_pos.mV[1], (F32) v[2] / 65535.f * pos_range.mV[2] + min_pos.mV[2]); - face.mVertices[j].mPosition *= scale; - if (j == 0) { min = max = face.mVertices[j].mPosition; @@ -2109,20 +2099,170 @@ BOOL LLVolume::createVolumeFacesFromStream(std::istream& is) (F32) t[1] / 65535.f * tc_range.mV[1] + min_tc.mV[1]); } + + // modifier flags? + bool do_mirror = (mParams.getSculptType() & LL_SCULPT_FLAG_MIRROR); + bool do_invert = (mParams.getSculptType() &LL_SCULPT_FLAG_INVERT); + + + // translate to actions: + bool do_reflect_x = false; + bool do_reverse_triangles = false; + bool do_invert_normals = false; + + if (do_mirror) + { + do_reflect_x = true; + do_reverse_triangles = !do_reverse_triangles; + } + + if (do_invert) + { + do_invert_normals = true; + do_reverse_triangles = !do_reverse_triangles; + } + + // now do the work + + if (do_reflect_x) + { + for (S32 i = 0; i < face.mVertices.size(); i++) + { + face.mVertices[i].mPosition.mV[VX] *= -1.0f; + face.mVertices[i].mNormal.mV[VX] *= -1.0f; + } + } + + if (do_invert_normals) + { + for (S32 i = 0; i < face.mVertices.size(); i++) + { + face.mVertices[i].mNormal *= -1.0f; + } + } + + if (do_reverse_triangles) + { + for (U32 j = 0; j < face.mIndices.size(); j += 3) + { + // swap the 2nd and 3rd index + S32 swap = face.mIndices[j+1]; + face.mIndices[j+1] = face.mIndices[j+2]; + face.mIndices[j+2] = swap; + } + } + } } mSculptLevel = 0; // success! - return TRUE; + return true; +} + +void tetrahedron_set_normal(LLVolumeFace::VertexData* cv) +{ + LLVector3 nrm = (cv[1].mPosition-cv[0].mPosition)%(cv[2].mPosition-cv[0].mPosition); + + nrm.normVec(); + + cv[0].mNormal = nrm; + cv[1].mNormal = nrm; + cv[2].mNormal = nrm; +} + +BOOL LLVolume::isTetrahedron() +{ + return mIsTetrahedron; +} + +void LLVolume::makeTetrahedron() +{ + mVolumeFaces.clear(); + + LLVolumeFace face; + + F32 x = 0.25f; + LLVector3 p[] = + { //unit tetrahedron corners + LLVector3(x,x,x), + LLVector3(-x,-x,x), + LLVector3(-x,x,-x), + LLVector3(x,-x,-x) + }; + + face.mExtents[0].setVec(-x,-x,-x); + face.mExtents[1].setVec(x,x,x); + + LLVolumeFace::VertexData cv[3]; + + //set texture coordinates + cv[0].mTexCoord = LLVector2(0,0); + cv[1].mTexCoord = LLVector2(1,0); + cv[2].mTexCoord = LLVector2(0.5f, 0.5f*F_SQRT3); + + + //side 1 + cv[0].mPosition = p[1]; + cv[1].mPosition = p[0]; + cv[2].mPosition = p[2]; + + tetrahedron_set_normal(cv); + + face.mVertices.push_back(cv[0]); + face.mVertices.push_back(cv[1]); + face.mVertices.push_back(cv[2]); + + //side 2 + cv[0].mPosition = p[3]; + cv[1].mPosition = p[0]; + cv[2].mPosition = p[1]; + + tetrahedron_set_normal(cv); + + face.mVertices.push_back(cv[0]); + face.mVertices.push_back(cv[1]); + face.mVertices.push_back(cv[2]); + + //side 3 + cv[0].mPosition = p[3]; + cv[1].mPosition = p[1]; + cv[2].mPosition = p[2]; + + tetrahedron_set_normal(cv); + + face.mVertices.push_back(cv[0]); + face.mVertices.push_back(cv[1]); + face.mVertices.push_back(cv[2]); + + //side 4 + cv[0].mPosition = p[2]; + cv[1].mPosition = p[0]; + cv[2].mPosition = p[3]; + + tetrahedron_set_normal(cv); + + face.mVertices.push_back(cv[0]); + face.mVertices.push_back(cv[1]); + face.mVertices.push_back(cv[2]); + + //set index buffer + for (U32 i = 0; i < 12; i++) + { + face.mIndices.push_back(i); + } + + mVolumeFaces.push_back(face); + mSculptLevel = 0; + mIsTetrahedron = TRUE; } void LLVolume::copyVolumeFaces(LLVolume* volume) { mVolumeFaces = volume->mVolumeFaces; mSculptLevel = 0; + mIsTetrahedron = FALSE; } -S32 const LL_SCULPT_MESH_MAX_FACES = 8; S32 LLVolume::getNumFaces() const { @@ -2504,6 +2644,11 @@ void LLVolume::sculpt(U16 sculpt_width, U16 sculpt_height, S8 sculpt_components, LLMemType m1(LLMemType::MTYPE_VOLUME); U8 sculpt_type = mParams.getSculptType(); + if (sculpt_type & LL_SCULPT_TYPE_MASK == LL_SCULPT_TYPE_MESH) + { + llerrs << "WTF?" << llendl; + } + BOOL data_is_empty = FALSE; if (sculpt_width == 0 || sculpt_height == 0 || sculpt_components < 3 || sculpt_data == NULL) @@ -3672,6 +3817,20 @@ S32 LLVolume::getNumTriangleIndices() const return count; } + +S32 LLVolume::getNumTriangles() const +{ + U32 triangle_count = 0; + + for (S32 i = 0; i < getNumVolumeFaces(); ++i) + { + triangle_count += getVolumeFace(i).mIndices.size()/3; + } + + return triangle_count; +} + + //----------------------------------------------------------------------------- // generateSilhouetteVertices() //----------------------------------------------------------------------------- @@ -3689,7 +3848,7 @@ void LLVolume::generateSilhouetteVertices(std::vector<LLVector3> &vertices, normals.clear(); segments.clear(); - if (mParams.getSculptType() == LL_SCULPT_TYPE_MESH) + if ((mParams.getSculptType() & LL_SCULPT_TYPE_MASK) == LL_SCULPT_TYPE_MESH) { return; } @@ -3894,7 +4053,7 @@ S32 LLVolume::lineSegmentIntersect(const LLVector3& start, const LLVector3& end, if (face == -1) // ALL_SIDES { start_face = 0; - end_face = getNumFaces() - 1; + end_face = getNumVolumeFaces() - 1; } else { @@ -4136,6 +4295,7 @@ BOOL LLVolume::cleanupTriangleData( const S32 num_input_vertices, // Generate the vertex mapping and the list of vertices without // duplicates. This will crash if there are no vertices. + llassert(num_input_vertices > 0); // check for no vertices! S32 *vertex_mapping = new S32[num_input_vertices]; LLVector3 *new_vertices = new LLVector3[num_input_vertices]; LLVertexIndexPair *prev_pairp = NULL; @@ -4754,6 +4914,61 @@ BOOL LLVolumeFace::create(LLVolume* volume, BOOL partial_build) } } +void LLVolumeFace::optimize(F32 angle_cutoff) +{ + LLVolumeFace new_face; + + VertexMapData::PointMap point_map; + + //remove redundant vertices + for (U32 i = 0; i < mIndices.size(); ++i) + { + U16 index = mIndices[i]; + + LLVolumeFace::VertexData cv = mVertices[index]; + + BOOL found = FALSE; + VertexMapData::PointMap::iterator point_iter = point_map.find(cv.mPosition); + if (point_iter != point_map.end()) + { //duplicate point might exist + for (U32 j = 0; j < point_iter->second.size(); ++j) + { + LLVolumeFace::VertexData& tv = (point_iter->second)[j]; + if (tv.compareNormal(cv, angle_cutoff)) + { + found = TRUE; + new_face.mIndices.push_back((point_iter->second)[j].mIndex); + break; + } + } + } + + if (!found) + { + new_face.mVertices.push_back(cv); + U16 index = (U16) new_face.mVertices.size()-1; + new_face.mIndices.push_back(index); + + VertexMapData d; + d.mPosition = cv.mPosition; + d.mTexCoord = cv.mTexCoord; + d.mNormal = cv.mNormal; + d.mIndex = index; + if (point_iter != point_map.end()) + { + point_iter->second.push_back(d); + } + else + { + point_map[d.mPosition].push_back(d); + } + } + } + + mVertices = new_face.mVertices; + mIndices = new_face.mIndices; +} + void LerpPlanarVertex(LLVolumeFace::VertexData& v0, LLVolumeFace::VertexData& v1, LLVolumeFace::VertexData& v2, @@ -4859,15 +5074,65 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build) if (!partial_build) { - int idxs[] = {0,1,(grid_size+1)+1,(grid_size+1)+1,(grid_size+1),0}; - for(int gx = 0;gx<grid_size;gx++){ - for(int gy = 0;gy<grid_size;gy++){ - if (mTypeMask & TOP_MASK){ - for(int i=5;i>=0;i--)mIndices.push_back(vtop+(gy*(grid_size+1))+gx+idxs[i]); - }else{ - for(int i=0;i<6;i++)mIndices.push_back(vtop+(gy*(grid_size+1))+gx+idxs[i]); + mTriStrip.clear(); + S32 idxs[] = {0,1,(grid_size+1)+1,(grid_size+1)+1,(grid_size+1),0}; + for(S32 gx = 0;gx<grid_size;gx++) + { + + for(S32 gy = 0;gy<grid_size;gy++) + { + if (mTypeMask & TOP_MASK) + { + for(S32 i=5;i>=0;i--) + { + mIndices.push_back(vtop+(gy*(grid_size+1))+gx+idxs[i]); + } + + if (gy == 0) + { + mTriStrip.push_back((gx+1)*(grid_size+1)); + mTriStrip.push_back((gx+1)*(grid_size+1)); + mTriStrip.push_back(gx*(grid_size+1)); + } + + mTriStrip.push_back(gy+1+(gx+1)*(grid_size+1)); + mTriStrip.push_back(gy+1+gx*(grid_size+1)); + + + if (gy == grid_size-1) + { + mTriStrip.push_back(gy+1+gx*(grid_size+1)); + } + } + else + { + for(S32 i=0;i<6;i++) + { + mIndices.push_back(vtop+(gy*(grid_size+1))+gx+idxs[i]); + } + + if (gy == 0) + { + mTriStrip.push_back(gx*(grid_size+1)); + mTriStrip.push_back(gx*(grid_size+1)); + mTriStrip.push_back((gx+1)*(grid_size+1)); + } + + mTriStrip.push_back(gy+1+gx*(grid_size+1)); + mTriStrip.push_back(gy+1+(gx+1)*(grid_size+1)); + + if (gy == grid_size-1) + { + mTriStrip.push_back(gy+1+(gx+1)*(grid_size+1)); + } } } + + } + + if (mTriStrip.size()%2 == 1) + { + mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]); } } @@ -5109,6 +5374,8 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build) pt2--; } } + + makeTriStrip(); } else { @@ -5213,67 +5480,108 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build) pt2--; } } + + makeTriStrip(); } } else { // Not hollow, generate the triangle fan. + U16 v1 = 2; + U16 v2 = 1; + if (mTypeMask & TOP_MASK) { - if (mTypeMask & OPEN_MASK) - { - // SOLID OPEN TOP - // Generate indices - // This is a tri-fan, so we reuse the same first point for all triangles. - for (S32 i = 0; i < (num_vertices - 2); i++) - { - mIndices[3*i] = num_vertices - 1; - mIndices[3*i+1] = i; - mIndices[3*i+2] = i + 1; - } - } - else - { - // SOLID CLOSED TOP - for (S32 i = 0; i < (num_vertices - 2); i++) - { - //MSMSM fix these caps but only for the un-cut case - mIndices[3*i] = num_vertices - 1; - mIndices[3*i+1] = i; - mIndices[3*i+2] = i + 1; - } - } + v1 = 1; + v2 = 2; + } + + for (S32 i = 0; i < (num_vertices - 2); i++) + { + mIndices[3*i] = num_vertices - 1; + mIndices[3*i+v1] = i; + mIndices[3*i+v2] = i + 1; + } + + //make tri strip + if (mTypeMask & OPEN_MASK) + { + makeTriStrip(); } else { - if (mTypeMask & OPEN_MASK) + S32 j = num_vertices-2; + if (mTypeMask & TOP_MASK) { - // SOLID OPEN BOTTOM - // Generate indices - // This is a tri-fan, so we reuse the same first point for all triangles. - for (S32 i = 0; i < (num_vertices - 2); i++) + mTriStrip.push_back(0); + for (S32 i = 0; i <= j; ++i) { - mIndices[3*i] = num_vertices - 1; - mIndices[3*i+1] = i + 1; - mIndices[3*i+2] = i; + mTriStrip.push_back(i); + if (i != j) + { + mTriStrip.push_back(j); + } + --j; } } else { - // SOLID CLOSED BOTTOM - for (S32 i = 0; i < (num_vertices - 2); i++) + mTriStrip.push_back(j); + for (S32 i = 0; i <= j; ++i) { - //MSMSM fix these caps but only for the un-cut case - mIndices[3*i] = num_vertices - 1; - mIndices[3*i+1] = i + 1; - mIndices[3*i+2] = i; + if (i != j) + { + mTriStrip.push_back(j); + } + mTriStrip.push_back(i); + --j; } } + + mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]); + + if (mTriStrip.size()%2 == 1) + { + mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]); + } } } + return TRUE; } +void LLVolumeFace::makeTriStrip() +{ + for (U32 i = 0; i < mIndices.size(); i+=3) + { + U16 i0 = mIndices[i]; + U16 i1 = mIndices[i+1]; + U16 i2 = mIndices[i+2]; + + if ((i/3)%2 == 1) + { + mTriStrip.push_back(i0); + mTriStrip.push_back(i0); + mTriStrip.push_back(i1); + mTriStrip.push_back(i2); + mTriStrip.push_back(i2); + } + else + { + mTriStrip.push_back(i2); + mTriStrip.push_back(i2); + mTriStrip.push_back(i1); + mTriStrip.push_back(i0); + mTriStrip.push_back(i0); + } + } + + if (mTriStrip.size()%2 == 1) + { + mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]); + } +} + void LLVolumeFace::createBinormals() { LLMemType m1(LLMemType::MTYPE_VOLUME); @@ -5319,6 +5627,42 @@ void LLVolumeFace::createBinormals() } } +void LLVolumeFace::appendFace(const LLVolumeFace& face, LLMatrix4& mat, LLMatrix4& norm_mat) +{ + U16 offset = mVertices.size(); + + if (face.mVertices.size() + mVertices.size() > 65536) + { + llerrs << "Cannot append face -- 16-bit overflow will occur." << llendl; + } + + for (U32 i = 0; i < face.mVertices.size(); ++i) + { + VertexData v = face.mVertices[i]; + v.mPosition = v.mPosition*mat; + v.mNormal = v.mNormal * norm_mat; + + v.mNormal.normalize(); + + mVertices.push_back(v); + + if (offset == 0 && i == 0) + { + mExtents[0] = mExtents[1] = v.mPosition; + } + else + { + update_min_max(mExtents[0], mExtents[1], v.mPosition); + } + } + + + for (U32 i = 0; i < face.mIndices.size(); ++i) + { + mIndices.push_back(face.mIndices[i]+offset); + } +} + BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build) { LLMemType m1(LLMemType::MTYPE_VOLUME); @@ -5351,7 +5695,7 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build) { mIndices.resize(num_indices); - if (volume->getParams().getSculptType() != LL_SCULPT_TYPE_MESH) + if ((volume->getParams().getSculptType() & LL_SCULPT_TYPE_MASK) != LL_SCULPT_TYPE_MESH) { mEdge.resize(num_indices); } @@ -5478,9 +5822,14 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build) if (!partial_build) { + mTriStrip.clear(); + // Now we generate the indices. for (t = 0; t < (mNumT-1); t++) { + //prepend terminating index to strip + mTriStrip.push_back(mNumS*t); + for (s = 0; s < (mNumS-1); s++) { mIndices[cur_index++] = s + mNumS*t; //bottom left @@ -5490,6 +5839,14 @@ 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 (s == 0) + { + mTriStrip.push_back(s+mNumS*t); + mTriStrip.push_back(s+mNumS*(t+1)); + } + mTriStrip.push_back(s+1+mNumS*t); + mTriStrip.push_back(s+1+mNumS*(t+1)); + 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 mEdge[cur_edge++] = (mNumS-1)*2*(t+1)+s*2+1; @@ -5530,6 +5887,13 @@ BOOL LLVolumeFace::createSide(LLVolume* volume, BOOL partial_build) } mEdge[cur_edge++] = (mNumS-1)*2*t+s*2; //top right/bottom left neighbor face } + //append terminating vertex to strip + mTriStrip.push_back(mNumS-1+mNumS*(t+1)); + } + + if (mTriStrip.size()%2 == 1) + { + mTriStrip.push_back(mTriStrip[mTriStrip.size()-1]); } } |