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-rw-r--r--indra/llmath/llvolume.cpp77
1 files changed, 28 insertions, 49 deletions
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index 454969b912..21df7f2b2d 100644
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -2102,14 +2102,11 @@ void LLVolume::regen()
createVolumeFaces();
}
-void LLVolume::genTangents(S32 face, bool mikktspace)
+void LLVolume::genTangents(S32 face)
{
// generate legacy tangents for the specified face
- // if mikktspace is true, only generate tangents if mikktspace tangents are not present (handles the case for non-mesh prims)
- if (!mikktspace || mVolumeFaces[face].mMikktSpaceTangents == nullptr)
- {
- mVolumeFaces[face].createTangents();
- }
+ llassert(!isMeshAssetLoaded() || mVolumeFaces[face].mTangents != nullptr); // if this is a complete mesh asset, we should already have tangents
+ mVolumeFaces[face].createTangents();
}
LLVolume::~LLVolume()
@@ -2492,15 +2489,7 @@ bool LLVolume::unpackVolumeFaces(std::istream& is, S32 size)
{
face.mNormalizedScale.set(1, 1, 1);
}
- if (mdl[i].has("NormalizedTranslation"))
- {
- face.mNormalizedTranslation.setValue(mdl[i]["NormalizedTranslation"]);
- }
- else
- {
- face.mNormalizedTranslation.set(1, 1, 1);
- }
-
+
LLVector4a pos_range;
pos_range.setSub(max_pos, min_pos);
LLVector2 tc_range2 = max_tc - min_tc;
@@ -2551,17 +2540,16 @@ bool LLVolume::unpackVolumeFaces(std::istream& is, S32 size)
}
}
-#if 0
+#if 0 // keep this code for now in case we decide to add support for on-the-wire tangents
{
if (!tangent.empty())
{
- face.allocateTangents(face.mNumVertices, true);
+ face.allocateTangents(face.mNumVertices);
U16* t = (U16*)&(tangent[0]);
- // store incoming tangents in mMikktSpaceTangents
- // NOTE: tangents coming from the asset may not be mikkt space, but they should always be used by the CLTF shaders to
+ // NOTE: tangents coming from the asset may not be mikkt space, but they should always be used by the GLTF shaders to
// maintain compliance with the GLTF spec
- LLVector4a* t_out = face.mMikktSpaceTangents;
+ LLVector4a* t_out = face.mTangents;
for (U32 j = 0; j < num_verts; ++j)
{
@@ -4111,7 +4099,7 @@ S32 LLVolume::lineSegmentIntersect(const LLVector4a& start, const LLVector4a& en
{
if (tangent_out != NULL) // if the caller wants tangents, we may need to generate them
{
- genTangents(i);
+ genTangents(i);
}
if (isUnique())
@@ -4854,15 +4842,15 @@ LLVolumeFace& LLVolumeFace::operator=(const LLVolumeFace& src)
mTangents = NULL;
}
- if (src.mMikktSpaceTangents)
+ if (src.mTangents)
{
- allocateTangents(src.mNumVertices, true);
- LLVector4a::memcpyNonAliased16((F32*)mMikktSpaceTangents, (F32*)src.mMikktSpaceTangents, vert_size);
+ allocateTangents(src.mNumVertices);
+ LLVector4a::memcpyNonAliased16((F32*)mTangents, (F32*)src.mTangents, vert_size);
}
else
{
- ll_aligned_free_16(mMikktSpaceTangents);
- mMikktSpaceTangents = nullptr;
+ ll_aligned_free_16(mTangents);
+ mTangents = nullptr;
}
if (src.mWeights)
@@ -4909,8 +4897,7 @@ LLVolumeFace& LLVolumeFace::operator=(const LLVolumeFace& src)
mOptimized = src.mOptimized;
mNormalizedScale = src.mNormalizedScale;
- mNormalizedTranslation = src.mNormalizedTranslation;
-
+
//delete
return *this;
}
@@ -4937,8 +4924,6 @@ void LLVolumeFace::freeData()
mIndices = NULL;
ll_aligned_free_16(mTangents);
mTangents = NULL;
- ll_aligned_free_16(mMikktSpaceTangents);
- mMikktSpaceTangents = nullptr;
ll_aligned_free_16(mWeights);
mWeights = NULL;
@@ -5060,9 +5045,6 @@ void LLVolumeFace::remap()
ll_aligned_free_16(mTangents);
mTangents = NULL;
- ll_aligned_free_16(mMikktSpaceTangents);
- mMikktSpaceTangents = nullptr;
-
// Assign new values
mIndices = remap_indices;
mPositions = remap_positions;
@@ -5484,10 +5466,10 @@ bool LLVolumeFace::cacheOptimize(bool gen_tangents)
llassert(!mOptimized);
mOptimized = TRUE;
- if (mMikktSpaceTangents == nullptr && gen_tangents && mNormals && mTexCoords)
- { // make sure to generate mikkt space tangents for cache optimizing since the index buffer may change
- allocateTangents(mNumVertices, true);
-
+ if (gen_tangents && mNormals && mTexCoords)
+ { // 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)
@@ -5573,7 +5555,7 @@ bool LLVolumeFace::cacheOptimize(bool gen_tangents)
allocateWeights(vert_count);
}
- allocateTangents(mNumVertices, true);
+ allocateTangents(mNumVertices);
for (int i = 0; i < mNumIndices; ++i)
{
@@ -5585,7 +5567,7 @@ bool LLVolumeFace::cacheOptimize(bool gen_tangents)
mNormals[dst_idx].load3(data.n[src_idx].mV);
mTexCoords[dst_idx] = data.tc[src_idx];
- mMikktSpaceTangents[dst_idx].loadua(data.t[src_idx].mV);
+ mTangents[dst_idx].loadua(data.t[src_idx].mV);
if (mWeights)
{
@@ -5605,10 +5587,10 @@ bool LLVolumeFace::cacheOptimize(bool gen_tangents)
mPositions[i].mul(inv_scale);
mNormals[i].mul(scale);
mNormals[i].normalize3();
- F32 w = mMikktSpaceTangents[i].getF32ptr()[3];
- mMikktSpaceTangents[i].mul(scale);
- mMikktSpaceTangents[i].normalize3();
- mMikktSpaceTangents[i].getF32ptr()[3] = w;
+ F32 w = mTangents[i].getF32ptr()[3];
+ mTangents[i].mul(scale);
+ mTangents[i].normalize3();
+ mTangents[i].getF32ptr()[3] = w;
}
}
@@ -5703,7 +5685,6 @@ void LLVolumeFace::swapData(LLVolumeFace& rhs)
llswap(rhs.mPositions, mPositions);
llswap(rhs.mNormals, mNormals);
llswap(rhs.mTangents, mTangents);
- llswap(rhs.mMikktSpaceTangents, mMikktSpaceTangents);
llswap(rhs.mTexCoords, mTexCoords);
llswap(rhs.mIndices,mIndices);
llswap(rhs.mNumVertices, mNumVertices);
@@ -6415,7 +6396,6 @@ void LLVolumeFace::createTangents()
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_VOLUME;
-
if (!mTangents)
{
allocateTangents(mNumVertices);
@@ -6539,11 +6519,10 @@ void LLVolumeFace::pushVertex(const LLVector4a& pos, const LLVector4a& norm, con
mNumVertices++;
}
-void LLVolumeFace::allocateTangents(S32 num_verts, bool mikktspace)
+void LLVolumeFace::allocateTangents(S32 num_verts)
{
- auto& buff = mikktspace ? mMikktSpaceTangents : mTangents;
- ll_aligned_free_16(buff);
- buff = (LLVector4a*) ll_aligned_malloc_16(sizeof(LLVector4a)*num_verts);
+ ll_aligned_free_16(mTangents);
+ mTangents = (LLVector4a*) ll_aligned_malloc_16(sizeof(LLVector4a)*num_verts);
}
void LLVolumeFace::allocateWeights(S32 num_verts)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 04:21:30 +0000