Struct RayMarchConfig 

pub struct RayMarchConfig {
    pub view_dir: [f32; 3],
    pub light_dir: [f32; 3],
    pub step_size: f32,
    pub max_steps: u32,
    pub vertical_exaggeration: f32,
    pub pixel_size_world: f32,
}

Configuration parameters for the DEM ray-marching kernel.

All vectors use a right-handed coordinate system where X runs east, Y runs north, and Z runs upward.

Fields

view_dir: [f32; 3]

Unit-vector describing the view direction (from eye toward scene). Defaults to [0, 0, -1] (top-down orthographic).

light_dir: [f32; 3]

Unit-vector pointing toward the light source. Defaults to the normalised (1, 1, 1) diagonal.

step_size: f32

World-space distance advanced per march step. Must be > 0.

max_steps: u32

Maximum number of steps before the ray is considered unoccluded. Must be > 0.

vertical_exaggeration: f32

Factor applied to DEM elevations before ray-height comparisons. Set to > 1.0 to exaggerate terrain relief.

pixel_size_world: f32

Real-world length of one DEM pixel (in the same units as elevations). Used to convert pixel-space step offsets to world-space distances.

Implementations

impl RayMarchConfig

pub fn validate(&self, width: u32, height: u32) -> GpuResult<()>

Validate configuration parameters against the supplied raster dimensions.

Errors

Returns GpuError::InvalidKernelParams if:

• step_size <= 0.0
• max_steps == 0
• width == 0 or height == 0

Trait Implementations

impl Clone for RayMarchConfig

fn clone(&self) -> RayMarchConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RayMarchConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RayMarchConfig

fn default() -> Self

Returns the “default value” for a type.