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Fix multiple issues with UV compression

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clayjohn 2023-10-29 18:18:18 +01:00 • committed by Clay John
parent 9144457484
commit 3f5c16dd9e
6 changed files with 39 additions and 13 deletions
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41
servers/rendering_server.cpp
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@ -400,7 +400,14 @@ Error RenderingServer::_surface_set_data(Array p_arrays, uint64_t p_format, uint
max_val = max_val.abs().max(min_val.abs());
max_val2 = max_val2.abs().max(min_val2.abs());
r_uv_scale = Vector4(max_val.x, max_val.y, max_val2.x, max_val2.y) * Vector4(2.0, 2.0, 2.0, 2.0);
if (min_val.x >= 0.0 && min_val2.x >= 0.0 && max_val.x <= 1.0 && max_val2.x <= 1.0 &&
min_val.y >= 0.0 && min_val2.y >= 0.0 && max_val.y <= 1.0 && max_val2.y <= 1.0) {
// When all channels are in the 0-1 range, we will compress to 16-bit without scaling to
// preserve the bits as best as possible.
r_uv_scale = Vector4(0.0, 0.0, 0.0, 0.0);
} else {
r_uv_scale = Vector4(max_val.x, max_val.y, max_val2.x, max_val2.y) * Vector4(2.0, 2.0, 2.0, 2.0);
}
}
for (int ai = 0; ai < RS::ARRAY_MAX; ai++) {
@ -670,8 +677,11 @@ Error RenderingServer::_surface_set_data(Array p_arrays, uint64_t p_format, uint
if (p_format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
for (int i = 0; i < p_vertex_array_len; i++) {
Vector2 vec = src[i];
// Normalize into 0-1 from possible range -uv_scale - uv_scale.
vec = vec / (Vector2(r_uv_scale.x, r_uv_scale.y)) + Vector2(0.5, 0.5);
if (!r_uv_scale.is_zero_approx()) {
// Normalize into 0-1 from possible range -uv_scale - uv_scale.
vec = vec / (Vector2(r_uv_scale.x, r_uv_scale.y)) + Vector2(0.5, 0.5);
}
uint16_t uv[2] = { (uint16_t)CLAMP(vec.x * 65535, 0, 65535), (uint16_t)CLAMP(vec.y * 65535, 0, 65535) };
memcpy(&aw[p_offsets[ai] + i * p_attrib_stride], uv, 4);
}
@ -695,8 +705,10 @@ Error RenderingServer::_surface_set_data(Array p_arrays, uint64_t p_format, uint
if (p_format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
for (int i = 0; i < p_vertex_array_len; i++) {
Vector2 vec = src[i];
// Normalize into 0-1 from possible range -uv_scale - uv_scale.
vec = vec / (Vector2(r_uv_scale.z, r_uv_scale.w)) + Vector2(0.5, 0.5);
if (!r_uv_scale.is_zero_approx()) {
// Normalize into 0-1 from possible range -uv_scale - uv_scale.
vec = vec / (Vector2(r_uv_scale.z, r_uv_scale.w)) + Vector2(0.5, 0.5);
}
uint16_t uv[2] = { (uint16_t)CLAMP(vec.x * 65535, 0, 65535), (uint16_t)CLAMP(vec.y * 65535, 0, 65535) };
memcpy(&aw[p_offsets[ai] + i * p_attrib_stride], uv, 4);
}
@ -1311,7 +1323,7 @@ void RenderingServer::mesh_add_surface_from_arrays(RID p_mesh, PrimitiveType p_p
mesh_add_surface(p_mesh, sd);
}
Array RenderingServer::_get_array_from_surface(uint64_t p_format, Vector<uint8_t> p_vertex_data, Vector<uint8_t> p_attrib_data, Vector<uint8_t> p_skin_data, int p_vertex_len, Vector<uint8_t> p_index_data, int p_index_len, const AABB &p_aabb) const {
Array RenderingServer::_get_array_from_surface(uint64_t p_format, Vector<uint8_t> p_vertex_data, Vector<uint8_t> p_attrib_data, Vector<uint8_t> p_skin_data, int p_vertex_len, Vector<uint8_t> p_index_data, int p_index_len, const AABB &p_aabb, const Vector4 &p_uv_scale) const {
uint32_t offsets[RS::ARRAY_MAX];
uint32_t vertex_elem_size;
@ -1469,7 +1481,12 @@ Array RenderingServer::_get_array_from_surface(uint64_t p_format, Vector<uint8_t
if (p_format & ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
for (int j = 0; j < p_vertex_len; j++) {
const uint16_t *v = reinterpret_cast<const uint16_t *>(&ar[j * attrib_elem_size + offsets[i]]);
w[j] = Vector2(float(v[0]) / 65535.0, float(v[1]) / 65535.0);
Vector2 vec = Vector2(float(v[0]) / 65535.0, float(v[1]) / 65535.0);
if (!p_uv_scale.is_zero_approx()) {
vec = (vec - Vector2(0.5, 0.5)) * Vector2(p_uv_scale.x, p_uv_scale.y);
}
w[j] = vec;
}
} else {
for (int j = 0; j < p_vertex_len; j++) {
@ -1489,7 +1506,11 @@ Array RenderingServer::_get_array_from_surface(uint64_t p_format, Vector<uint8_t
if (p_format & ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
for (int j = 0; j < p_vertex_len; j++) {
const uint16_t *v = reinterpret_cast<const uint16_t *>(&ar[j * attrib_elem_size + offsets[i]]);
w[j] = Vector2(float(v[0]) / 65535.0, float(v[1]) / 65535.0);
Vector2 vec = Vector2(float(v[0]) / 65535.0, float(v[1]) / 65535.0);
if (!p_uv_scale.is_zero_approx()) {
vec = (vec - Vector2(0.5, 0.5)) * Vector2(p_uv_scale.z, p_uv_scale.w);
}
w[j] = vec;
}
} else {
for (int j = 0; j < p_vertex_len; j++) {
@ -1686,7 +1707,7 @@ TypedArray<Array> RenderingServer::mesh_surface_get_blend_shape_arrays(RID p_mes
for (uint32_t i = 0; i < blend_shape_count; i++) {
Vector<uint8_t> bs_data = blend_shape_data.slice(i * divisor, (i + 1) * divisor);
Vector<uint8_t> unused;
blend_shape_array.set(i, _get_array_from_surface(bs_format, bs_data, unused, unused, sd.vertex_count, unused, 0, sd.aabb));
blend_shape_array.set(i, _get_array_from_surface(bs_format, bs_data, unused, unused, sd.vertex_count, unused, 0, sd.aabb, sd.uv_scale));
}
return blend_shape_array;
@ -1708,7 +1729,7 @@ Array RenderingServer::mesh_create_arrays_from_surface_data(const SurfaceData &p
uint64_t format = p_data.format;
return _get_array_from_surface(format, vertex_data, attrib_data, skin_data, vertex_len, index_data, index_len, p_data.aabb);
return _get_array_from_surface(format, vertex_data, attrib_data, skin_data, vertex_len, index_data, index_len, p_data.aabb, p_data.uv_scale);
}
#if 0
Array RenderingServer::_mesh_surface_get_skeleton_aabb_bind(RID p_mesh, int p_surface) const {