Cycles: add animation denoising test, fix operator to work with single frames.

intern/cycles/blender/addon/operators.py

@@ -43,15 +43,15 @@ class CYCLES_OT_use_shading_nodes(Operator):
 
 
 class CYCLES_OT_denoise_animation(Operator):
-    """Denoise rendered animation sequence using current scene and view """ \
-    """layer settings. Requires denoising data passes and output to """ \
-    """OpenEXR multilayer files"""
+    "Denoise rendered animation sequence using current scene and view " \
+    "layer settings. Requires denoising data passes and output to " \
+    "OpenEXR multilayer files"
     bl_idname = "cycles.denoise_animation"
     bl_label = "Denoise Animation"
 
     input_filepath = StringProperty(
         name='Input Filepath',
-        description='File path for frames to denoise. If not specified, uses the render file path from the scene',
+        description='File path for image to denoise. If not specified, uses the render file path and frame range from the scene',
         default='',
         subtype='FILE_PATH')
 
@@ -71,33 +71,41 @@ class CYCLES_OT_denoise_animation(Operator):
         in_filepath = self.input_filepath
         out_filepath = self.output_filepath
 
-        if in_filepath == '':
-            in_filepath = scene.render.filepath
-        if out_filepath == '':
-            out_filepath = in_filepath
-
-        # Backup since we will overwrite the scene path temporarily
-        original_filepath = scene.render.filepath
-
-        # Expand filepaths for each frame so we match Blender render output exactly.
         in_filepaths = []
         out_filepaths = []
 
-        for frame in range(scene.frame_start, scene.frame_end + 1):
-            scene.render.filepath = in_filepath
-            filepath = scene.render.frame_path(frame=frame)
-            in_filepaths.append(filepath)
+        if in_filepath != '':
+            # Denoise a single file
+            if out_filepath == '':
+                out_filepath = in_filepath
 
-            if not os.path.isfile(filepath):
-                scene.render.filepath = original_filepath
-                self.report({'ERROR'}, f"Frame '{filepath}' not found, animation must be complete.")
-                return {'CANCELLED'}
+            in_filepaths.append(in_filepath)
+            out_filepaths.append(out_filepath)
+        else:
+            # Denoise animation sequence with expanded frames matching
+            # Blender render output file naming.
+            in_filepath = scene.render.filepath
+            if out_filepath == '':
+                out_filepath = in_filepath
 
-            scene.render.filepath = out_filepath
-            filepath = scene.render.frame_path(frame=frame)
-            out_filepaths.append(filepath)
+            # Backup since we will overwrite the scene path temporarily
+            original_filepath = scene.render.filepath
 
-        scene.render.filepath = original_filepath
+            for frame in range(scene.frame_start, scene.frame_end + 1):
+                scene.render.filepath = in_filepath
+                filepath = scene.render.frame_path(frame=frame)
+                in_filepaths.append(filepath)
+
+                if not os.path.isfile(filepath):
+                    scene.render.filepath = original_filepath
+                    self.report({'ERROR'}, f"Frame '{filepath}' not found, animation must be complete.")
+                    return {'CANCELLED'}
+
+                scene.render.filepath = out_filepath
+                filepath = scene.render.frame_path(frame=frame)
+                out_filepaths.append(filepath)
+
+            scene.render.filepath = original_filepath
 
         # Run denoiser
         # TODO: support cancel and progress reports.

tests/python/CMakeLists.txt

@@ -549,6 +549,7 @@ if(WITH_CYCLES)
 		add_cycles_render_test(bake)
 		add_cycles_render_test(bsdf)
 		add_cycles_render_test(denoise)
+		add_cycles_render_test(denoise_animation)
 		add_cycles_render_test(displacement)
 		add_cycles_render_test(hair)
 		add_cycles_render_test(image_data_types)

tests/python/cycles_render_tests.py

@@ -14,61 +14,40 @@ def render_file(filepath, output_filepath):
     basedir = os.path.dirname(dirname)
     subject = os.path.basename(dirname)
 
-    custom_args = os.getenv('CYCLESTEST_ARGS')
-    custom_args = shlex.split(custom_args) if custom_args else []
+    frame_filepath = output_filepath + '0001.png'
+
+    common_args = [
+        "-noaudio",
+        "--factory-startup",
+        "--enable-autoexec",
+        filepath,
+        "-E", "CYCLES",
+        "-o", output_filepath,
+        "-F", "PNG"]
 
     # OSL and GPU examples
     # custom_args += ["--python-expr", "import bpy; bpy.context.scene.cycles.shading_system = True"]
     # custom_args += ["--python-expr", "import bpy; bpy.context.scene.cycles.device = 'GPU'"]
-
-    frame_filepath = output_filepath + '0001.png'
+    custom_args = os.getenv('CYCLESTEST_ARGS')
+    custom_args = shlex.split(custom_args) if custom_args else []
+    common_args += custom_args
 
     if subject == 'opengl':
-        command = [
-            BLENDER,
-            "--window-geometry", "0", "0", "1", "1",
-            "-noaudio",
-            "--factory-startup",
-            "--enable-autoexec",
-            filepath,
-            "-E", "CYCLES"]
-        command += custom_args
-        command += [
-            "-o", output_filepath,
-            "-F", "PNG",
-            '--python', os.path.join(basedir,
-                                     "util",
-                                     "render_opengl.py")]
+        command = [BLENDER, "--window-geometry", "0", "0", "1", "1"]
+        command += common_args
+        command += ['--python', os.path.join(basedir, "util", "render_opengl.py")]
     elif subject == 'bake':
-        command = [
-            BLENDER,
-            "-b",
-            "-noaudio",
-            "--factory-startup",
-            "--enable-autoexec",
-            filepath,
-            "-E", "CYCLES"]
-        command += custom_args
-        command += [
-            "-o", output_filepath,
-            "-F", "PNG",
-            '--python', os.path.join(basedir,
-                                     "util",
-                                     "render_bake.py")]
+        command = [BLENDER, "--background"]
+        command += common_args
+        command += ['--python', os.path.join(basedir, "util", "render_bake.py")]
+    elif subject == 'denoise_animation':
+        command = [BLENDER, "--background"]
+        command += common_args
+        command += ['--python', os.path.join(basedir, "util", "render_denoise.py")]
     else:
-        command = [
-            BLENDER,
-            "--background",
-            "-noaudio",
-            "--factory-startup",
-            "--enable-autoexec",
-            filepath,
-            "-E", "CYCLES"]
-        command += custom_args
-        command += [
-            "-o", output_filepath,
-            "-F", "PNG",
-            "-f", "1"]
+        command = [BLENDER, "--background"]
+        command += common_args
+        command += ["-f", "1"]
 
     try:
         # Success