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Fix z-fighting between feature previews and the bodies in the Design tab

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The bodies now always draw over the preview on every face a feature leaves unchanged, for
all features. Since a hole's cut sits inside the body, the Hole preview now hides the
bodies and shows the result alone, as Fillet/Chamfer and Draft do.
This commit is contained in:
SoftFever
2026-10-05 19:38:46 +08:00
parent 6dfd1c2a0a
commit b67269ccc4
5 changed files with 32 additions and 6 deletions
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src/slic3r/GUI/3DScene.cpp
+7
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@@ -310,6 +310,7 @@ GLVolume::GLVolume(float r, float g, float b, float a)
, force_native_color(false)
, force_neutral_color(false)
, force_sinking_contours(false)
, depth_bias(false)
, picking(false)
, tverts_range(0, size_t(-1))
{
@@ -1332,11 +1333,17 @@ void GLVolumeCollection::render(GLVolumeCollection::ERenderType type,
shader->set_uniform("projection_matrix", projection_matrix);
const Matrix3d view_normal_matrix = view_matrix.matrix().block(0, 0, 3, 3) * model_matrix.matrix().block(0, 0, 3, 3).inverse().transpose();
shader->set_uniform("view_normal_matrix", view_normal_matrix);
if (volume.first->depth_bias) {
glsafe(::glEnable(GL_POLYGON_OFFSET_FILL));
glsafe(::glPolygonOffset(1.0f, 1.0f));
}
//BBS: add outline related logic
if (volume.first->selected && shader_can_outline && GUI::wxGetApp().show_outline())
volume.first->render_with_outline(cnv_size);
else
volume.first->render();
if (volume.first->depth_bias)
glsafe(::glDisable(GL_POLYGON_OFFSET_FILL));
#if ENABLE_ENVIRONMENT_MAP
if (use_environment_texture)