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Use stack_z_offsets in all the cases we create a TransparentUi (#16197)

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# Objective

Use same pattern when creating `TransparentUi` items where the
`sort_key` is the `UiNode` stack index + some offset.

## Solution

Refactored to follow same pattern.

## Testing

Ran few UI examples.

## Doubts

Maybe `stack_z_offsets::BACKGROUND_COLOR` should be renamed. This is
used for `ExtractedUiNode`, which is not only used for "background
color" it's also used to render borders, images and text (I think).
This commit is contained in:
Asier Illarramendi 2024-11-04 23:18:41 +01:00 committed by GitHub
parent 50dde9b0a7
commit 718688e791
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3 changed files with 8 additions and 6 deletions
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4
crates/bevy_ui/src/render/box_shadow.rs
View file

@ -32,7 +32,7 @@ use bevy_render::{
use bevy_transform::prelude::GlobalTransform;
use bytemuck::{Pod, Zeroable};
use super::{QUAD_INDICES, QUAD_VERTEX_POSITIONS};
use super::{stack_z_offsets, QUAD_INDICES, QUAD_VERTEX_POSITIONS};
pub const BOX_SHADOW_SHADER_HANDLE: Handle<Shader> = Handle::weak_from_u128(17717747047134343426);
@ -365,7 +365,7 @@ pub fn queue_shadows(
pipeline,
entity: (*entity, extracted_shadow.main_entity),
sort_key: (
FloatOrd(extracted_shadow.stack_index as f32 - 0.1),
FloatOrd(extracted_shadow.stack_index as f32 + stack_z_offsets::BOX_SHADOW),
entity.index(),
),
batch_range: 0..0,

8
crates/bevy_ui/src/render/mod.rs
View file

@ -75,7 +75,7 @@ pub mod graph {
/// When this is _not_ possible, pick a suitably unique index unlikely to clash with other things (ex: `0.1826823` not `0.1`).
///
/// Offsets should be unique for a given node entity to avoid z fighting.
/// These should pretty much _always_ be larger than -1.0 and smaller than 1.0 to avoid clipping into nodes
/// These should pretty much _always_ be larger than -0.5 and smaller than 0.5 to avoid clipping into nodes
/// above / below the current node in the stack.
///
/// A z-index of 0.0 is the baseline, which is used as the primary "background color" of the node.
@ -83,7 +83,9 @@ pub mod graph {
/// Note that nodes "stack" on each other, so a negative offset on the node above could clip _into_
/// a positive offset on a node below.
pub mod stack_z_offsets {
pub const BACKGROUND_COLOR: f32 = 0.0;
pub const BOX_SHADOW: f32 = -0.1;
pub const TEXTURE_SLICE: f32 = 0.0;
pub const NODE: f32 = 0.0;
pub const MATERIAL: f32 = 0.18267;
}
@ -861,7 +863,7 @@ pub fn queue_uinodes(
pipeline,
entity: (*entity, extracted_uinode.main_entity),
sort_key: (
FloatOrd(extracted_uinode.stack_index as f32 + stack_z_offsets::BACKGROUND_COLOR),
FloatOrd(extracted_uinode.stack_index as f32 + stack_z_offsets::NODE),
entity.index(),
),
// batch_range will be calculated in prepare_uinodes

2
crates/bevy_ui/src/render/ui_texture_slice_pipeline.rs
View file

@ -365,7 +365,7 @@ pub fn queue_ui_slices(
pipeline,
entity: (*entity, extracted_slicer.main_entity),
sort_key: (
FloatOrd(extracted_slicer.stack_index as f32),
FloatOrd(extracted_slicer.stack_index as f32 + stack_z_offsets::TEXTURE_SLICE),
entity.index(),
),
batch_range: 0..0,