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pinhole_pixel_ray

roxlap_gpu

Function pinhole_pixel_ray 

Source 
pub fn pinhole_pixel_ray(
    right: [f64; 3],
    down: [f64; 3],
    forward: [f64; 3],
    x: f64,
    y: f64,
    w: f64,
    h: f64,
    fov_y_rad: f64,
) -> [f64; 3]
Expand description

World-space view-ray direction (un-normalised) for window pixel (x, y) under a vertical-FOV pinhole — the projection scene_dda.wgsl’s render_scene uses. Shared by GpuRenderer::pixel_ray; standalone so it’s unit-testable without a device. right/down/forward are the camera basis.