From 7960c996deda5e562cd1e5b352a8c80e44b6379b Mon Sep 17 00:00:00 2001
From: Ivan Vlasov <ivan.vlasov@autodesk.com>
Date: Mon, 29 Jan 2024 15:36:37 -0500
Subject: [PATCH 1/2] Autotest for translate, rotate, scale

---
 .../mayaUsd/render/mayaToHydra/CMakeLists.txt |   1 +
 .../TransformsTest/cube_parent_moved.png      | Bin 0 -> 2102 bytes
 .../cube_parent_moved_rotated.png             | Bin 0 -> 3206 bytes
 .../cube_parent_moved_rotated_scaled.png      | Bin 0 -> 4364 bytes
 .../TransformsTest/cube_scaled.png            | Bin 0 -> 3010 bytes
 .../TransformsTest/cube_scaled_moved.png      | Bin 0 -> 2658 bytes
 .../cube_scaled_moved_rotated.png             | Bin 0 -> 2133 bytes
 .../TransformsTest/cube_untransformed.png     | Bin 0 -> 2229 bytes
 .../TransformsTest/usd_cube_parent_moved.png  | Bin 0 -> 1981 bytes
 .../usd_cube_parent_moved_rotated.png         | Bin 0 -> 2608 bytes
 .../usd_cube_parent_moved_rotated_scaled.png  | Bin 0 -> 4089 bytes
 .../TransformsTest/usd_cube_scaled.png        | Bin 0 -> 2764 bytes
 .../TransformsTest/usd_cube_scaled_moved.png  | Bin 0 -> 2517 bytes
 .../usd_cube_scaled_moved_rotated.png         | Bin 0 -> 2000 bytes
 .../TransformsTest/usd_cube_untransformed.png | Bin 0 -> 2250 bytes
 .../render/mayaToHydra/testTransforms.py      | 108 ++++++++++++++++++
 16 files changed, 109 insertions(+)
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_parent_moved.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_parent_moved_rotated.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_parent_moved_rotated_scaled.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_scaled.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_scaled_moved.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_scaled_moved_rotated.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_untransformed.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_parent_moved.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_parent_moved_rotated.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_parent_moved_rotated_scaled.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_scaled.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_scaled_moved.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_scaled_moved_rotated.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_untransformed.png
 create mode 100644 test/lib/mayaUsd/render/mayaToHydra/testTransforms.py

diff --git a/test/lib/mayaUsd/render/mayaToHydra/CMakeLists.txt b/test/lib/mayaUsd/render/mayaToHydra/CMakeLists.txt
index 1e47a21e3e..a5726831dc 100644
--- a/test/lib/mayaUsd/render/mayaToHydra/CMakeLists.txt
+++ b/test/lib/mayaUsd/render/mayaToHydra/CMakeLists.txt
@@ -11,6 +11,7 @@ set(TEST_SCRIPT_FILES
     testRendererSwitching.py
     testSceneBrowser.py
     testStageAddPrim.py
+    testTransforms.py
     testNewSceneWithStage.py
     testDirectionalLights.py
     testFlowViewportAPI.py
diff --git a/test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_parent_moved.png b/test/lib/mayaUsd/render/mayaToHydra/TransformsTest/cube_parent_moved.png
new file mode 100644
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diff --git a/test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_scaled_moved_rotated.png b/test/lib/mayaUsd/render/mayaToHydra/TransformsTest/usd_cube_scaled_moved_rotated.png
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diff --git a/test/lib/mayaUsd/render/mayaToHydra/testTransforms.py b/test/lib/mayaUsd/render/mayaToHydra/testTransforms.py
new file mode 100644
index 0000000000..8564ace1ca
--- /dev/null
+++ b/test/lib/mayaUsd/render/mayaToHydra/testTransforms.py
@@ -0,0 +1,108 @@
+# Copyright 2020 Luma Pictures
+# Copyright 2023 Autodesk
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import maya.cmds as cmds
+import maya.mel
+
+import fixturesUtils
+import mtohUtils
+import unittest
+
+class TestTransforms(mtohUtils.MtohTestCase):
+    _file = __file__
+
+    IMAGEDIFF_FAIL_THRESHOLD = 0.01
+    IMAGEDIFF_FAIL_PERCENT = 0.1
+
+    def setUp(self):
+        self.imageVersion = None
+        if maya.mel.eval("defaultShaderName") != "standardSurface1":
+            self.imageVersion = 'lambertDefaultMaterial'
+
+    def verifySnapshot(self, imageName):
+        cmds.refresh()
+        self.assertSnapshotClose(imageName, 
+                                 self.IMAGEDIFF_FAIL_THRESHOLD,
+                                 self.IMAGEDIFF_FAIL_PERCENT, 
+                                 imageVersion=self.imageVersion)
+
+    def test_nativePrim(self):
+        self.makeCubeScene(camDist=6)
+        cubeParent = cmds.group(self.cubeTrans, name='cubeParent')
+        cmds.select(clear=1)
+        
+        self.verifySnapshot("cube_untransformed.png")
+
+        cmds.scale(3, 1, 3, self.cubeTrans, absolute=True)
+        self.verifySnapshot("cube_scaled.png")
+
+        cmds.move(0, 2, 0, self.cubeTrans, absolute=True)
+        self.verifySnapshot("cube_scaled_moved.png")
+
+        cmds.rotate(0, 45, 0, self.cubeTrans, absolute=True)
+        self.verifySnapshot("cube_scaled_moved_rotated.png")
+
+        cmds.move(0, -3, 0, cubeParent, absolute=True)
+        self.verifySnapshot("cube_parent_moved.png")
+
+        cmds.rotate(0, 0, 45, cubeParent, absolute=True)
+        self.verifySnapshot("cube_parent_moved_rotated.png")
+
+        cmds.scale(2, 2, 2, cubeParent, absolute=True)
+        self.verifySnapshot("cube_parent_moved_rotated_scaled.png")
+
+    @unittest.skipUnless(mtohUtils.checkForMayaUsdPlugin(), "Requires Maya USD Plugin.")
+    def test_usdPrim(self):
+        import mayaUsd
+        import mayaUsd_createStageWithNewLayer
+        from pxr import UsdGeom, Gf
+
+        cmds.file(new=True, force=True)
+        self.setBasicCam(10)
+        self.setHdStormRenderer()
+
+        # Create a USD stage
+        usdProxyShapeUfePathString = mayaUsd_createStageWithNewLayer.createStageWithNewLayer()
+        stage = mayaUsd.lib.GetPrim(usdProxyShapeUfePathString).GetStage()
+
+        # Define a cube prim in the stage
+        parentA = "/ParentA"
+        childCube = "/ParentA/Cube"
+        parentPrimA = stage.DefinePrim(parentA, 'Xform')
+        childPrimCube = stage.DefinePrim(childCube, 'Cube')
+        
+        self.verifySnapshot("usd_cube_untransformed.png")
+
+        UsdGeom.XformCommonAPI(childPrimCube).SetScale((2, 1, 2))
+        self.verifySnapshot("usd_cube_scaled.png")
+
+        UsdGeom.XformCommonAPI(childPrimCube).SetTranslate((0, 2, 0))
+        self.verifySnapshot("usd_cube_scaled_moved.png")
+
+        UsdGeom.XformCommonAPI(childPrimCube).SetRotate(Gf.Vec3f(0, 45, 0))
+        self.verifySnapshot("usd_cube_scaled_moved_rotated.png")
+
+        UsdGeom.XformCommonAPI(parentPrimA).SetTranslate((0, -4, 0))
+        self.verifySnapshot("usd_cube_parent_moved.png")
+
+        UsdGeom.XformCommonAPI(parentPrimA).SetRotate(Gf.Vec3f(0, 0, 45))
+        self.verifySnapshot("usd_cube_parent_moved_rotated.png")
+
+        UsdGeom.XformCommonAPI(parentPrimA).SetScale((2, 3, 2))
+        self.verifySnapshot("usd_cube_parent_moved_rotated_scaled.png")
+
+
+if __name__ == '__main__':
+    fixturesUtils.runTests(globals())

From d93b5ca3b96803e668a29fb49d48b268ca332070 Mon Sep 17 00:00:00 2001
From: Ivan Vlasov <ivan.vlasov@autodesk.com>
Date: Wed, 31 Jan 2024 13:42:19 -0500
Subject: [PATCH 2/2] Minor improvements requested by code review

---
 test/lib/mayaUsd/render/mayaToHydra/testTransforms.py | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/test/lib/mayaUsd/render/mayaToHydra/testTransforms.py b/test/lib/mayaUsd/render/mayaToHydra/testTransforms.py
index 8564ace1ca..e862dd92f7 100644
--- a/test/lib/mayaUsd/render/mayaToHydra/testTransforms.py
+++ b/test/lib/mayaUsd/render/mayaToHydra/testTransforms.py
@@ -1,5 +1,4 @@
-# Copyright 2020 Luma Pictures
-# Copyright 2023 Autodesk
+# Copyright 2024 Autodesk
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -26,17 +25,11 @@ class TestTransforms(mtohUtils.MtohTestCase):
     IMAGEDIFF_FAIL_THRESHOLD = 0.01
     IMAGEDIFF_FAIL_PERCENT = 0.1
 
-    def setUp(self):
-        self.imageVersion = None
-        if maya.mel.eval("defaultShaderName") != "standardSurface1":
-            self.imageVersion = 'lambertDefaultMaterial'
-
     def verifySnapshot(self, imageName):
         cmds.refresh()
         self.assertSnapshotClose(imageName, 
                                  self.IMAGEDIFF_FAIL_THRESHOLD,
-                                 self.IMAGEDIFF_FAIL_PERCENT, 
-                                 imageVersion=self.imageVersion)
+                                 self.IMAGEDIFF_FAIL_PERCENT)
 
     def test_nativePrim(self):
         self.makeCubeScene(camDist=6)