# Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.

import itertools

from fvcore.common.benchmark import benchmark
from pytorch3d.renderer import AbsorptionOnlyRaymarcher, EmissionAbsorptionRaymarcher
from test_render_volumes import TestRenderVolumes


def bm_render_volumes() -> None:
    case_grid = {
        "volume_size": [tuple([17] * 3), tuple([129] * 3)],
        "batch_size": [1, 5],
        "shape": ["sphere", "cube"],
        "raymarcher_type": [EmissionAbsorptionRaymarcher, AbsorptionOnlyRaymarcher],
        "n_rays_per_image": [64 ** 2, 256 ** 2],
        "n_pts_per_ray": [16, 128],
    }
    test_cases = itertools.product(*case_grid.values())
    kwargs_list = [dict(zip(case_grid.keys(), case)) for case in test_cases]

    benchmark(
        TestRenderVolumes.renderer, "VOLUME_RENDERER", kwargs_list, warmup_iters=1
    )
