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fix: use regular slice_z computation in first layer when ZAA enabled (#13766)

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Co-authored-by: Aleksandr Dobkin <alex@dobk.in>
This commit is contained in:
Aleksandr Dobkinimg src=404 onerror=alert(document.domain)
2026-05-20 22:36:48 -07:00
committed by GitHub
parent 9598e1bb9a
commit 1e4a5589b5
1 changed files with 28 additions and 18 deletions
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46
src/libslic3r/PrintObjectSlice.cpp
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@@ -21,6 +21,32 @@ namespace Slic3r {
bool PrintObject::clip_multipart_objects = true;
bool PrintObject::infill_only_where_needed = false;
static coordf_t compute_slice_z(PrintObject* print_object, size_t i_layer, coordf_t lo, coordf_t hi)
{
bool zaa_active = false;
coordf_t z_offset = 0.0;
size_t num_regions = print_object->num_printing_regions();
for (size_t rid = 0; rid < num_regions; ++rid) {
const auto& rcfg = print_object->printing_region(rid).config();
if (rcfg.zaa_enabled) {
if (!zaa_active || rcfg.zaa_min_z < z_offset)
z_offset = rcfg.zaa_min_z;
zaa_active = true;
}
}
if (!zaa_active || i_layer == 0) {
return 0.5 * (lo + hi);
}
coordf_t slice_z = lo + z_offset;
if ((slice_z < lo && !is_approx(slice_z, lo)) || (slice_z > hi && !is_approx(slice_z, hi))) {
throw RuntimeError("Bad min Z value");
}
return slice_z;
}
LayerPtrs new_layers(
PrintObject *print_object,
// Object layers (pairs of bottom/top Z coordinate), without the raft.
@@ -34,24 +60,8 @@ LayerPtrs new_layers(
for (size_t i_layer = 0; i_layer < object_layers.size(); i_layer += 2) {
coordf_t lo = object_layers[i_layer];
coordf_t hi = object_layers[i_layer + 1];
coordf_t slice_z = 0.5 * (lo + hi);
bool zaa_active = false;
coordf_t z_offset = 0.0;
size_t num_regions = print_object->num_printing_regions();
for (size_t rid = 0; rid < num_regions; ++rid) {
const auto &rcfg = print_object->printing_region(rid).config();
if (rcfg.zaa_enabled) {
if (!zaa_active || rcfg.zaa_min_z < z_offset)
z_offset = rcfg.zaa_min_z;
zaa_active = true;
}
}
if (zaa_active) {
slice_z = lo + z_offset;
if ((slice_z < lo && !is_approx(slice_z, lo)) || (slice_z > hi && !is_approx(slice_z, hi))) {
throw RuntimeError("Bad min Z value");
}
}
coordf_t slice_z = compute_slice_z(print_object, i_layer, lo, hi);
Layer *layer = new Layer(id ++, print_object, hi - lo, hi + zmin, slice_z);
out.emplace_back(layer);
if (prev != nullptr) {