+ constexpr auto sizeofBlobUnit = sizeof(T) * 4;
+
+ DALI_ASSERT_ALWAYS(((accessor.mBlob.mLength % sizeofBlobUnit == 0) ||
+ accessor.mBlob.mStride >= sizeofBlobUnit) &&
+ "weights buffer length not a multiple of element size");
+ const auto inBufferSize = accessor.mBlob.GetBufferSize();
+ const auto outBufferSize = (sizeof(Vector4) / sizeofBlobUnit) * inBufferSize;
+
+ std::vector<uint8_t> buffer(outBufferSize);
+ auto inBuffer = buffer.data() + outBufferSize - inBufferSize;
+ if(!ReadAccessor(accessor, source, inBuffer))
+ {
+ ExceptionFlinger(ASSERT_LOCATION) << "Failed to read weights from '" << meshPath << "'.";
+ }
+
+ if constexpr(sizeofBlobUnit != sizeof(Vector4))
+ {
+ auto floats = reinterpret_cast<float*>(buffer.data());
+ const auto end = inBuffer + inBufferSize;
+ while(inBuffer != end)
+ {
+ const auto value = *reinterpret_cast<T*>(inBuffer);
+ // Normalize weight value. value /= 255 for uint8_t weight, and value /= 65535 for uint16_t weight.
+ *floats = static_cast<float>(value) / static_cast<float>((1 << (sizeof(T) * 8)) - 1);
+
+ inBuffer += sizeof(T);
+ ++floats;
+ }
+ }
+ raw.mAttribs.push_back({"aWeights", Property::VECTOR4, static_cast<uint32_t>(outBufferSize / sizeof(Vector4)), std::move(buffer)});
+}
+
+template<bool use32BitsIndices, typename IndexProviderType = IndexProvider<use32BitsIndices>>
+bool GenerateNormals(MeshDefinition::RawData& raw)
+{
+ using IndexType = typename IndexProviderType::IndexType;
+
+ // mIndicies size must be even if we use 32bit indices.
+ if(DALI_UNLIKELY(use32BitsIndices && !raw.mIndices.empty() && !(raw.mIndices.size() % (sizeof(IndexType) / sizeof(uint16_t)) == 0)))
+ {
+ return false;
+ }
+