mirror of
https://github.com/nerfstudio-project/nerfstudio.git
synced 2026-11-14 03:44:02 +08:00
79 lines
1.8 KiB
Python
79 lines
1.8 KiB
Python
"""
|
|
Test renderers
|
|
"""
|
|
import pytest
|
|
import torch
|
|
|
|
from mattport.nerf import renderers
|
|
|
|
|
|
def test_rgb_renderer():
|
|
"""Test RGB volumetric rendering"""
|
|
num_samples = 10
|
|
|
|
rgb = torch.ones((3, num_samples, 3))
|
|
weights = torch.ones((3, num_samples))
|
|
weights /= torch.sum(weights, axis=-1, keepdim=True)
|
|
|
|
rgb_renderer = renderers.RGBRenderer()
|
|
|
|
out = rgb_renderer(rgb=rgb, weights=weights)
|
|
assert torch.max(out.rgb) > 0.9
|
|
|
|
out = rgb_renderer(rgb=rgb * 0, weights=weights)
|
|
assert torch.max(out.rgb) == pytest.approx(0)
|
|
|
|
|
|
def test_sh_renderer():
|
|
"""Test SH volumetric rendering"""
|
|
|
|
levels = 4
|
|
num_samples = 10
|
|
|
|
sh = torch.ones((3, num_samples, 3 * levels**2))
|
|
weights = torch.ones((3, num_samples))
|
|
weights /= torch.sum(weights, axis=-1, keepdim=True)
|
|
directions = torch.zeros((3, num_samples, 3))
|
|
directions[..., 0] = 1
|
|
|
|
sh_renderer = renderers.SHRenderer()
|
|
|
|
out = sh_renderer(sh=sh, directions=directions, weights=weights)
|
|
assert torch.max(out.rgb) > 0.9
|
|
|
|
|
|
def test_acc_renderer():
|
|
"""Test accumulation rendering"""
|
|
|
|
num_samples = 10
|
|
weights = torch.ones((3, num_samples))
|
|
weights /= torch.sum(weights, axis=-1, keepdim=True)
|
|
|
|
acc_renderer = renderers.AccumulationRenderer()
|
|
|
|
out = acc_renderer(weights=weights)
|
|
assert torch.max(out.accumulation) > 0.9
|
|
|
|
|
|
def test_depth_renderer():
|
|
"""Test depth rendering"""
|
|
|
|
num_samples = 10
|
|
weights = torch.ones((3, num_samples))
|
|
weights /= torch.sum(weights, axis=-1, keepdim=True)
|
|
|
|
ts = torch.linspace(0, 100, num_samples)
|
|
ts = torch.stack([ts, ts, ts], dim=0)
|
|
|
|
depth_renderer = renderers.DepthRenderer()
|
|
|
|
out = depth_renderer(weights=weights, ts=ts)
|
|
assert torch.min(out.depth) > 0
|
|
|
|
|
|
if __name__ == "__main__":
|
|
test_rgb_renderer()
|
|
test_sh_renderer()
|
|
test_acc_renderer()
|
|
test_depth_renderer()
|