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GLTF: Fix nasty bug with incorrect buffer indices

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This commit is contained in:
Aaron Franke
2025-07-04 23:39:45 -07:00
parent 53be3b78d1
commit ad10c6185d
2 changed files with 79 additions and 80 deletions
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155
modules/gltf/gltf_document.cpp
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@ -202,10 +202,6 @@ Error GLTFDocument::_serialize(Ref<GLTFState> p_state) {
return Error::FAILED;
}
for (GLTFBufferViewIndex i = 0; i < p_state->buffer_views.size(); i++) {
p_state->buffer_views.write[i]->buffer = 0;
}
/* STEP SERIALIZE BUFFER VIEWS */
err = _encode_buffer_views(p_state);
if (err != OK) {
@ -1153,12 +1149,12 @@ String GLTFDocument::_get_component_type_name(const GLTFAccessor::GLTFComponentT
return "<Error>";
}
Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_src, const int64_t p_count, const GLTFAccessor::GLTFAccessorType p_accessor_type, const GLTFAccessor::GLTFComponentType p_component_type, const bool p_normalized, const int64_t p_byte_offset, const bool p_for_vertex, GLTFBufferViewIndex &r_accessor, const bool p_for_vertex_indices) {
Error GLTFDocument::_encode_accessor_into_buffer_view(Ref<GLTFState> p_state, const double *p_src, const int64_t p_count, const GLTFAccessor::GLTFAccessorType p_accessor_type, const GLTFAccessor::GLTFComponentType p_component_type, const bool p_normalized, const int64_t p_byte_offset, const bool p_for_vertex, GLTFBufferViewIndex &r_buffer_view, const bool p_for_vertex_indices) {
const int component_count = COMPONENT_COUNT_FOR_ACCESSOR_TYPE[p_accessor_type];
const int component_size = _get_component_type_size(p_component_type);
ERR_FAIL_COND_V(component_size == 0, FAILED);
// The byte offset of an accessor MUST be a multiple of the accessor’s component size.
// https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#data-alignment
// The byte offset of an accessor MUST be a multiple of the accessor's component size.
// See 3.6.2.4: https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#data-alignment
int64_t offset = p_byte_offset;
if (p_byte_offset % component_size != 0) {
offset += component_size - (p_byte_offset % component_size);
@ -1166,7 +1162,8 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
int64_t skip_every = 0;
int64_t skip_bytes = 0;
//special case of alignments, as described in spec
// Accessors of matrix type have data stored in column-major order. The start of each column MUST be aligned to 4-byte boundaries.
// See 3.6.2.4: https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#data-alignment
switch (p_component_type) {
case GLTFAccessor::COMPONENT_TYPE_SIGNED_BYTE:
case GLTFAccessor::COMPONENT_TYPE_UNSIGNED_BYTE: {
@ -1183,7 +1180,7 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
case GLTFAccessor::COMPONENT_TYPE_UNSIGNED_SHORT: {
if (p_accessor_type == GLTFAccessor::TYPE_MAT3) {
skip_every = 6;
skip_bytes = 4;
skip_bytes = 2;
}
} break;
default: {
@ -1192,8 +1189,10 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
Ref<GLTFBufferView> bv;
bv.instantiate();
const GLTFBufferIndex buffer0 = 0;
bv->buffer = buffer0;
bv->byte_offset = offset;
Vector<uint8_t> &gltf_buffer = p_state->buffers.write[0];
Vector<uint8_t> &gltf_buffer = p_state->buffers.write[buffer0];
int64_t stride = component_count * component_size;
if (p_for_vertex && stride % 4) {
@ -1219,8 +1218,8 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
ERR_FAIL_V_MSG(ERR_INVALID_DATA, "glTF: Failed to encode buffer view, component type not set.");
}
case GLTFAccessor::COMPONENT_TYPE_SIGNED_BYTE: {
Vector<int8_t> buffer;
buffer.resize(p_count * component_count);
Vector<int8_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1229,23 +1228,23 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
}
double d = *p_src;
if (p_normalized) {
buffer.write[dst_i] = d * 128.0;
encoded_data.write[dst_i] = d * 128.0;
} else {
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
}
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(int8_t);
const size_t buffer_size = encoded_data.size() * sizeof(int8_t);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_UNSIGNED_BYTE: {
Vector<uint8_t> buffer;
buffer.resize(p_count * component_count);
Vector<uint8_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1254,21 +1253,21 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
}
double d = *p_src;
if (p_normalized) {
buffer.write[dst_i] = d * 255.0;
encoded_data.write[dst_i] = d * 255.0;
} else {
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
}
p_src++;
dst_i++;
}
}
gltf_buffer.append_array(buffer);
const size_t buffer_size = buffer.size() * sizeof(uint8_t);
gltf_buffer.append_array(encoded_data);
const size_t buffer_size = encoded_data.size() * sizeof(uint8_t);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_SIGNED_SHORT: {
Vector<int16_t> buffer;
buffer.resize(p_count * component_count);
Vector<int16_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1277,23 +1276,23 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
}
double d = *p_src;
if (p_normalized) {
buffer.write[dst_i] = d * 32768.0;
encoded_data.write[dst_i] = d * 32768.0;
} else {
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
}
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(int16_t);
const size_t buffer_size = encoded_data.size() * sizeof(int16_t);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_UNSIGNED_SHORT: {
Vector<uint16_t> buffer;
buffer.resize(p_count * component_count);
Vector<uint16_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1302,23 +1301,23 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
}
double d = *p_src;
if (p_normalized) {
buffer.write[dst_i] = d * 65535.0;
encoded_data.write[dst_i] = d * 65535.0;
} else {
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
}
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(uint16_t);
const size_t buffer_size = encoded_data.size() * sizeof(uint16_t);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_SIGNED_INT: {
Vector<int32_t> buffer;
buffer.resize(p_count * component_count);
Vector<int32_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1326,20 +1325,20 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
dst_i += skip_bytes;
}
double d = *p_src;
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(int32_t);
const size_t buffer_size = encoded_data.size() * sizeof(int32_t);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_UNSIGNED_INT: {
Vector<uint32_t> buffer;
buffer.resize(p_count * component_count);
Vector<uint32_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1347,20 +1346,20 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
dst_i += skip_bytes;
}
double d = *p_src;
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(uint32_t);
const size_t buffer_size = encoded_data.size() * sizeof(uint32_t);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_SINGLE_FLOAT: {
Vector<float> buffer;
buffer.resize(p_count * component_count);
Vector<float> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1368,20 +1367,20 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
dst_i += skip_bytes;
}
double d = *p_src;
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(float);
const size_t buffer_size = encoded_data.size() * sizeof(float);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_DOUBLE_FLOAT: {
Vector<double> buffer;
buffer.resize(p_count * component_count);
Vector<double> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1389,23 +1388,23 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
dst_i += skip_bytes;
}
double d = *p_src;
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(double);
const size_t buffer_size = encoded_data.size() * sizeof(double);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_HALF_FLOAT: {
ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "glTF: Half float not supported yet.");
} break;
case GLTFAccessor::COMPONENT_TYPE_SIGNED_LONG: {
Vector<int64_t> buffer;
buffer.resize(p_count * component_count);
Vector<int64_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1414,20 +1413,20 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
}
// FIXME: This can result in precision loss because int64_t can store some values that double can't.
double d = *p_src;
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(int64_t);
const size_t buffer_size = encoded_data.size() * sizeof(int64_t);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
case GLTFAccessor::COMPONENT_TYPE_UNSIGNED_LONG: {
Vector<uint64_t> buffer;
buffer.resize(p_count * component_count);
Vector<uint64_t> encoded_data;
encoded_data.resize(p_count * component_count);
int64_t dst_i = 0;
for (int64_t i = 0; i < p_count; i++) {
for (int64_t j = 0; j < component_count; j++) {
@ -1436,15 +1435,15 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
}
// FIXME: This can result in precision loss because int64_t can store some values that double can't.
double d = *p_src;
buffer.write[dst_i] = d;
encoded_data.write[dst_i] = d;
p_src++;
dst_i++;
}
}
const int64_t old_size = gltf_buffer.size();
const size_t buffer_size = buffer.size() * sizeof(uint64_t);
const size_t buffer_size = encoded_data.size() * sizeof(uint64_t);
gltf_buffer.resize(old_size + buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, buffer.ptrw(), buffer_size);
memcpy(gltf_buffer.ptrw() + old_size, encoded_data.ptrw(), buffer_size);
bv->byte_length = buffer_size;
} break;
}
@ -1456,7 +1455,7 @@ Error GLTFDocument::_encode_buffer_view(Ref<GLTFState> p_state, const double *p_
gltf_buffer.push_back(0);
}
r_accessor = bv->buffer = p_state->buffer_views.size();
r_buffer_view = p_state->buffer_views.size();
p_state->buffer_views.push_back(bv);
return OK;
}
@ -1738,7 +1737,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_ints(Ref<GLTFState> p_state,
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i, p_for_vertex_indices);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i, p_for_vertex_indices);
if (err != OK) {
return -1;
}
@ -1847,7 +1846,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_vec2(Ref<GLTFState> p_state,
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -1900,7 +1899,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_color(Ref<GLTFState> p_state
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -1967,7 +1966,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_weights(Ref<GLTFState> p_sta
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -2018,7 +2017,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_joints(Ref<GLTFState> p_stat
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -2071,7 +2070,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_quaternions(Ref<GLTFState> p
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -2146,7 +2145,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_floats(Ref<GLTFState> p_stat
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -2196,7 +2195,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_vec3(Ref<GLTFState> p_state,
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -2290,11 +2289,11 @@ GLTFAccessorIndex GLTFDocument::_encode_sparse_accessor_as_vec3(Ref<GLTFState> p
} else {
sparse_accessor->sparse_indices_component_type = GLTFAccessor::COMPONENT_TYPE_UNSIGNED_SHORT;
}
if (_encode_buffer_view(p_state, changed_indices.ptr(), changed_indices.size(), GLTFAccessor::TYPE_SCALAR, sparse_accessor->sparse_indices_component_type, sparse_accessor->normalized, sparse_accessor->sparse_indices_byte_offset, false, buffer_view_i_indices) != OK) {
if (_encode_accessor_into_buffer_view(p_state, changed_indices.ptr(), changed_indices.size(), GLTFAccessor::TYPE_SCALAR, sparse_accessor->sparse_indices_component_type, sparse_accessor->normalized, sparse_accessor->sparse_indices_byte_offset, false, buffer_view_i_indices) != OK) {
return -1;
}
// We use changed_indices.size() here, because we must pass the number of vec3 values rather than the number of components.
if (_encode_buffer_view(p_state, changed_values.ptr(), changed_indices.size(), sparse_accessor->accessor_type, sparse_accessor->component_type, sparse_accessor->normalized, sparse_accessor->sparse_values_byte_offset, false, buffer_view_i_values) != OK) {
if (_encode_accessor_into_buffer_view(p_state, changed_values.ptr(), changed_indices.size(), sparse_accessor->accessor_type, sparse_accessor->component_type, sparse_accessor->normalized, sparse_accessor->sparse_values_byte_offset, false, buffer_view_i_values) != OK) {
return -1;
}
sparse_accessor->sparse_indices_buffer_view = buffer_view_i_indices;
@ -2303,7 +2302,7 @@ GLTFAccessorIndex GLTFDocument::_encode_sparse_accessor_as_vec3(Ref<GLTFState> p
} else if (changed_indices.size() > 0) {
GLTFBufferIndex buffer_view_i;
sparse_accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, sparse_accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, sparse_accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -2377,7 +2376,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_xform(Ref<GLTFState> p_state
accessor->accessor_type = accessor_type;
accessor->component_type = component_type;
accessor->byte_offset = 0;
Error err = _encode_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
Error err = _encode_accessor_into_buffer_view(p_state, attribs.ptr(), p_attribs.size(), accessor_type, component_type, accessor->normalized, size, p_for_vertex, buffer_view_i);
if (err != OK) {
return -1;
}
@ -2817,7 +2816,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_variant(Ref<GLTFState> p_sta
p_state->buffers.push_back(Vector<uint8_t>());
}
const int64_t buffer_size = p_state->buffers[buffer_view_index].size();
Error err = _encode_buffer_view(p_state, encoded_attribs.ptr(), p_attribs.size(), p_accessor_type, p_component_type, false, buffer_size, false, buffer_view_index);
Error err = _encode_accessor_into_buffer_view(p_state, encoded_attribs.ptr(), p_attribs.size(), p_accessor_type, p_component_type, false, buffer_size, false, buffer_view_index);
if (err != OK) {
return -1;
}