File size: 3,584 Bytes
6936692 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | # Copyright (c) 2022-2026, The Isaac Lab Project Developers (https://github.com/isaac-sim/IsaacLab/blob/main/CONTRIBUTORS.md).
# All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
"""Tests for PPISP USD parsing helpers."""
import pytest
from isaaclab_ppisp import PpispCfg, auto_camera_ppisp_cfg, normalize_ppisp_cfg, ppisp_cfg_from_usd_shader
from pxr import Gf, Sdf, Usd, UsdShade
def test_ppisp_shader_import_uses_first_time_sample():
stage = Usd.Stage.CreateInMemory()
shader = UsdShade.Shader.Define(stage, "/Render/RenderProduct/PPISP")
exposure = shader.CreateInput("exposureOffset", Sdf.ValueTypeNames.Float).GetAttr()
exposure.Set(1.0)
exposure.Set(2.0, 10.0)
exposure.Set(3.0, 20.0)
color = shader.CreateInput("colorLatentBlue", Sdf.ValueTypeNames.Float2).GetAttr()
color.Set(Gf.Vec2f(0.0, 0.0))
color.Set(Gf.Vec2f(0.1, 0.2), 5.0)
cfg = ppisp_cfg_from_usd_shader(shader)
assert cfg.inputs["exposureOffset"] == 2.0
assert cfg.inputs["colorLatentBlue"] == pytest.approx((0.1, 0.2))
def test_normalize_ppisp_cfg_imports_shader_prim_path_from_stage():
stage = Usd.Stage.CreateInMemory()
shader = UsdShade.Shader.Define(stage, "/Render/RenderProduct/PPISP")
shader.CreateInput("exposureOffset", Sdf.ValueTypeNames.Float).Set(1.5)
shader.CreateInput("colorLatentRed", Sdf.ValueTypeNames.Float2).Set(Gf.Vec2f(0.25, -0.5))
cfg = normalize_ppisp_cfg(PpispCfg(shader_prim_path="/Render/RenderProduct/PPISP"), stage=stage)
assert cfg.shader_prim_path == "/Render/RenderProduct/PPISP"
assert cfg.inputs["exposureOffset"] == 1.5
assert cfg.inputs["colorLatentRed"] == pytest.approx((0.25, -0.5))
def test_normalize_ppisp_cfg_applies_explicit_overrides_after_shader_import():
stage = Usd.Stage.CreateInMemory()
shader = UsdShade.Shader.Define(stage, "/Render/RenderProduct/PPISP")
shader.CreateInput("exposureOffset", Sdf.ValueTypeNames.Float).Set(1.5)
shader.CreateInput("colorLatentRed", Sdf.ValueTypeNames.Float2).Set(Gf.Vec2f(0.25, -0.5))
cfg = normalize_ppisp_cfg(
PpispCfg(
shader_prim_path="/Render/RenderProduct/PPISP",
inputs={"exposureOffset": 2.0},
),
stage=stage,
)
assert cfg.inputs["exposureOffset"] == 2.0
assert cfg.inputs["colorLatentRed"] == pytest.approx((0.25, -0.5))
def test_auto_camera_ppisp_cfg_skips_matching_render_product_without_ppisp():
"""Camera-bound discovery skips generated RenderProducts that lack PPISP.
Isaac RTX can create a transient RenderProduct that targets the same camera
as an authored scene RenderProduct. If the transient prim has no ``PPISP``
child, discovery must keep scanning instead of concluding the camera has no
camera-bound PPISP shader.
"""
stage = Usd.Stage.CreateInMemory()
camera = "/World/Camera"
stage.DefinePrim(camera, "Camera")
plain_rp = stage.DefinePrim("/Render/GeneratedRenderProduct", "RenderProduct")
plain_rp.CreateRelationship("camera").SetTargets([Sdf.Path(camera)])
authored_rp = stage.DefinePrim("/World/Render/RenderProduct", "RenderProduct")
authored_rp.CreateRelationship("camera").SetTargets([Sdf.Path(camera)])
shader = UsdShade.Shader.Define(stage, "/World/Render/RenderProduct/PPISP")
shader.CreateInput("exposureOffset", Sdf.ValueTypeNames.Float).Set(1.5)
cfg = auto_camera_ppisp_cfg(stage, camera)
assert cfg is not None
assert cfg.shader_prim_path == "/World/Render/RenderProduct/PPISP"
assert cfg.inputs["exposureOffset"] == 1.5
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