Module: Gsplat::NativeOps

Defined in:
lib/gsplat/native_ops.rb

Overview

Ruby-facing validation and fallback wrappers for native operations.

Class Method Summary collapse

Class Method Details

.isect_offset_encode(keys, camera_count, tile_width, tile_height) ⇒ Object

Raises:



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# File 'lib/gsplat/native_ops.rb', line 94

def isect_offset_encode(keys, camera_count, tile_width, tile_height)
  Backend::RubyIsectTiles.send(:validate_grid!, camera_count, tile_width, tile_height)
  unless keys.is_a?(Numo::Int64)
    return Backend::RubyIsectTiles.offset_encode(keys, camera_count, tile_width, tile_height)
  end
  raise ShapeError, "expected isect_ids [M]" unless keys.ndim == 1

  Native.isect_offset_encode_int64(keys.dup, camera_count, tile_width, tile_height)
end

.isect_tiles(means2d, radii, depths, tile_size, tile_width, tile_height, sort:) ⇒ Object

rubocop:disable Metrics/ParameterLists



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# File 'lib/gsplat/native_ops.rb', line 69

def isect_tiles(means2d, radii, depths, tile_size, tile_width, tile_height, sort:)
  # rubocop:enable Metrics/ParameterLists
  prepared = Backend::RubyIsectTiles.send(
    :validate_inputs, means2d, radii, depths, tile_size, tile_width, tile_height
  )
  typed_means, typed_radii, typed_depths = prepared
  unless typed_means.is_a?(Numo::SFloat)
    return Backend::RubyIsectTiles.forward(
      means2d, radii, depths, tile_size, tile_width, tile_height, sort: sort
    )
  end
  tile_bits = Backend::RubyIsectTiles.send(:tile_n_bits, tile_width, tile_height)
  Backend::RubyIsectTiles.send(:validate_key_width!, typed_means.shape[0], tile_bits)

  Native.isect_tiles_sfloat(
    typed_means.dup,
    typed_radii.dup,
    typed_depths.dup,
    tile_size,
    tile_width,
    tile_height,
    sort
  )
end

.projection_forward(means, covars, quaternions, scales, viewmats, intrinsics, width, height, eps2d:, near_plane:, far_plane:, radius_clip:, calc_compensations:, camera_model:, radial_coeffs: nil, tangential_coeffs: nil, thin_prism_coeffs: nil, global_z_order: true) ⇒ Object

rubocop:disable Metrics/ParameterLists



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# File 'lib/gsplat/native_ops.rb', line 29

def projection_forward(means, covars, quaternions, scales, viewmats, intrinsics, width, height,
                       eps2d:, near_plane:, far_plane:, radius_clip:, calc_compensations:, camera_model:,
                       radial_coeffs: nil, tangential_coeffs: nil, thin_prism_coeffs: nil,
                       global_z_order: true)
  # rubocop:enable Metrics/ParameterLists
  extended = camera_model.to_s == "fisheye" ||
             [radial_coeffs, tangential_coeffs, thin_prism_coeffs].any?
  unless means.is_a?(Numo::SFloat) && !extended && global_z_order
    return Backend::RubyProjection.forward(
      means, covars, quaternions, scales, viewmats, intrinsics, width, height,
      eps2d: eps2d, near_plane: near_plane, far_plane: far_plane,
      radius_clip: radius_clip, calc_compensations: calc_compensations,
      camera_model: camera_model, radial_coeffs: radial_coeffs,
      tangential_coeffs: tangential_coeffs, thin_prism_coeffs: thin_prism_coeffs,
      global_z_order: global_z_order
    )
  end
  prepared = Backend::RubyProjection.send(
    :prepare_inputs,
    means, covars, quaternions, scales, viewmats, intrinsics, width, height,
    eps2d, near_plane, far_plane, radius_clip, camera_model
  )
  typed_means, typed_covars, typed_views, typed_intrinsics = prepared
  Native.projection_forward_sfloat(
    typed_means.dup,
    typed_covars.dup,
    typed_views.dup,
    typed_intrinsics.dup,
    width,
    height,
    eps2d,
    near_plane,
    far_plane,
    radius_clip,
    calc_compensations,
    camera_model.to_s == "ortho"
  )
end

.spherical_harmonics_forward(degree, directions, coefficients, masks: nil) ⇒ Object 



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# File 'lib/gsplat/native_ops.rb', line 11

def spherical_harmonics_forward(degree, directions, coefficients, masks: nil)
  prepared = Backend::RubySphericalHarmonics.send(
    :validate_inputs, degree, directions, coefficients, masks
  )
  typed_directions, typed_coefficients, typed_masks, = prepared
  return Backend::RubySphericalHarmonics.forward(degree, directions, coefficients, masks: masks) if typed_masks
  unless typed_directions.is_a?(Numo::SFloat)
    return Backend::RubySphericalHarmonics.forward(degree, directions, coefficients, masks: masks)
  end

  Native.spherical_harmonics_forward_sfloat(
    degree,
    typed_directions.dup,
    typed_coefficients.dup
  )
end