Struct DemRayMarcher 

pub struct DemRayMarcher { /* private fields */ }

GPU-accelerated DEM ray-marching kernel.

Construct once with DemRayMarcher::new and call DemRayMarcher::march for each DEM raster you wish to process.

Implementations

impl DemRayMarcher

pub fn new(ctx: Arc<GpuContext>) -> GpuResult<Self>

Compile the ray-march compute shader and create the GPU pipeline.

Errors

Returns a shader compilation or pipeline creation error when the WGSL source cannot be compiled on the current device.

pub fn march( &self, dem: &[f32], width: u32, height: u32, config: &RayMarchConfig, ) -> GpuResult<RayMarchResult>

Execute the ray-march kernel over the supplied DEM raster.

Arguments

• dem — flat row-major f32 elevations, length must equal width * height.
• width — number of columns in the raster.
• height — number of rows in the raster.
• config — ray-marching parameters (validated before dispatch).

Errors

Returns an error if:

• config.validate() fails.
• dem.len() != width * height.
• Any GPU operation (buffer creation, dispatch, readback) fails.