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LightsUniform

viewport_lib::resources

Struct LightsUniform 

Source 
#[repr(C)]
pub struct LightsUniform {
Show 14 fields
    pub count: u32,
    pub shadow_bias: f32,
    pub shadows_enabled: u32,
    pub debug_vis_mode: u32,
    pub sky_colour: [f32; 3],
    pub hemisphere_intensity: f32,
    pub ground_colour: [f32; 3],
    pub debug_vis_scale: f32,
    pub ibl_enabled: u32,
    pub ibl_intensity: f32,
    pub ibl_rotation: f32,
    pub show_skybox: u32,
    pub debug_vis_split_x: f32,
    pub _pad_dbg: [u32; 3],

}
Expand description

GPU-side lights header uniform (binding 3 of group 0).

Per-light data lives in a separate storage buffer at binding 13 (light_storage_buf); this header carries only the global parameters and the active light count. Sized so the structure cost stays well inside the uniform-buffer budget regardless of how many lights are active in a given frame.

Layout:

  • count: u32 = 4 bytes
  • shadow_bias: f32 = 4 bytes
  • shadows_enabled: u32 = 4 bytes
  • debug_vis_mode: u32 = 4 bytes
  • sky_colour: [f32; 3] = 12 bytes
  • hemisphere_intensity: f32 = 4 bytes
  • ground_colour: [f32; 3] = 12 bytes
  • debug_vis_scale: f32 = 4 bytes
  • ibl_enabled: u32 = 4 bytes
  • ibl_intensity: f32 = 4 bytes
  • ibl_rotation: f32 = 4 bytes
  • show_skybox: u32 = 4 bytes
  • debug_vis_split_x: f32 = 4 bytes
  • _pad_dbg: [u32; 3] = 12 bytes Total: 16 + 16 + 16 + 16 + 16 = 80 bytes

Fields§

§count: u32

Number of active lights. Indexed against light_storage_buf.

§shadow_bias: f32

Shadow bias applied to depth comparisons to reduce acne.

§shadows_enabled: u32

1 = shadow maps enabled, 0 = disabled.

§debug_vis_mode: u32

Packed debug visualization channel selectors and active flag. 0 = debug off.

§sky_colour: [f32; 3]

Sky hemisphere colour for ambient contribution.

§hemisphere_intensity: f32

Hemisphere ambient intensity multiplier.

§ground_colour: [f32; 3]

Ground hemisphere colour for ambient contribution.

§debug_vis_scale: f32

Scale multiplier applied to debug quantity values before display.

§ibl_enabled: u32

1 = IBL environment map is active, 0 = disabled.

§ibl_intensity: f32

IBL intensity multiplier.

§ibl_rotation: f32

IBL Y-axis rotation in radians.

§show_skybox: u32

1 = show skybox background, 0 = use background colour.

§debug_vis_split_x: f32

Normalized split X position (0..1) for SplitScreen debug mode.

§_pad_dbg: [u32; 3]

Reserved for future debug uniform fields.

Trait Implementations§

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impl Clone for LightsUniform

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fn clone(&self) -> LightsUniform

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for LightsUniform

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impl Pod for LightsUniform

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impl Zeroable for LightsUniform

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fn zeroed() -> Self

Calls zeroed. Read more

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