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Merge pull request #87231 from Calinou/geometryinstance3d-transparency-warn-mobile-compatibility

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Show warning for GeometryInstance3D transparency in Mobile/Compatibility
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Rémi Verschelde 2024-05-04 11:52:06 +02:00
commit 471ddf4327
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3
doc/classes/GeometryInstance3D.xml
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@ -66,6 +66,7 @@
The transparency applied to the whole geometry (as a multiplier of the materials' existing transparency). [code]0.0[/code] is fully opaque, while [code]1.0[/code] is fully transparent. Values greater than [code]0.0[/code] (exclusive) will force the geometry's materials to go through the transparent pipeline, which is slower to render and can exhibit rendering issues due to incorrect transparency sorting. However, unlike using a transparent material, setting [member transparency] to a value greater than [code]0.0[/code] (exclusive) will [i]not[/i] disable shadow rendering.
In spatial shaders, [code]1.0 - transparency[/code] is set as the default value of the [code]ALPHA[/code] built-in.
[b]Note:[/b] [member transparency] is clamped between [code]0.0[/code] and [code]1.0[/code], so this property cannot be used to make transparent materials more opaque than they originally are.
[b]Note:[/b] Only supported when using the Forward+ rendering method. When using the Mobile or Compatibility rendering method, [member transparency] is ignored and is considered as always being [code]0.0[/code].
</member>
<member name="visibility_range_begin" type="float" setter="set_visibility_range_begin" getter="get_visibility_range_begin" default="0.0" keywords="lod_begin, hlod_begin">
Starting distance from which the GeometryInstance3D will be visible, taking [member visibility_range_begin_margin] into account as well. The default value of 0 is used to disable the range check.
@ -130,9 +131,11 @@
</constant>
<constant name="VISIBILITY_RANGE_FADE_SELF" value="1" enum="VisibilityRangeFadeMode">
Will fade-out itself when reaching the limits of its own visibility range. This is slower than [constant VISIBILITY_RANGE_FADE_DISABLED], but it can provide smoother transitions. The fading range is determined by [member visibility_range_begin_margin] and [member visibility_range_end_margin].
[b]Note:[/b] Only supported when using the Forward+ rendering method. When using the Mobile or Compatibility rendering method, this mode acts like [constant VISIBILITY_RANGE_FADE_DISABLED] but with hysteresis disabled.
</constant>
<constant name="VISIBILITY_RANGE_FADE_DEPENDENCIES" value="2" enum="VisibilityRangeFadeMode">
Will fade-in its visibility dependencies (see [member Node3D.visibility_parent]) when reaching the limits of its own visibility range. This is slower than [constant VISIBILITY_RANGE_FADE_DISABLED], but it can provide smoother transitions. The fading range is determined by [member visibility_range_begin_margin] and [member visibility_range_end_margin].
[b]Note:[/b] Only supported when using the Forward+ rendering method. When using the Mobile or Compatibility rendering method, this mode acts like [constant VISIBILITY_RANGE_FADE_DISABLED] but with hysteresis disabled.
</constant>
</constants>
</class>

9
scene/3d/visual_instance_3d.cpp
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@ -194,6 +194,7 @@ Ref<Material> GeometryInstance3D::get_material_overlay() const {
void GeometryInstance3D::set_transparency(float p_transparency) {
transparency = CLAMP(p_transparency, 0.0f, 1.0f);
RS::get_singleton()->instance_geometry_set_transparency(get_instance(), transparency);
update_configuration_warnings();
}
float GeometryInstance3D::get_transparency() const {
@ -441,6 +442,14 @@ PackedStringArray GeometryInstance3D::get_configuration_warnings() const {
warnings.push_back(RTR("The GeometryInstance3D is configured to fade out smoothly over distance, but the fade transition distance is set to 0.\nTo resolve this, increase Visibility Range End Margin above 0."));
}
if (!Math::is_zero_approx(transparency) && OS::get_singleton()->get_current_rendering_method() != "forward_plus") {
warnings.push_back(RTR("GeometryInstance3D transparency is only available when using the Forward+ rendering method."));
}
if ((visibility_range_fade_mode == VISIBILITY_RANGE_FADE_SELF || visibility_range_fade_mode == VISIBILITY_RANGE_FADE_DEPENDENCIES) && OS::get_singleton()->get_current_rendering_method() != "forward_plus") {
warnings.push_back(RTR("GeometryInstance3D visibility range transparency fade is only available when using the Forward+ rendering method."));
}
return warnings;
}