82 lines
3.1 KiB
Python
82 lines
3.1 KiB
Python
#!/usr/bin/env python3
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import pathlib
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import sys
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import wave
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import bpy
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def write_silence(path):
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path.parent.mkdir(parents=True, exist_ok=True)
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with wave.open(str(path), "wb") as stream:
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stream.setnchannels(1)
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stream.setsampwidth(2)
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stream.setframerate(8000)
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stream.writeframes(b"\0\0" * 8000)
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def main(output_path):
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output = pathlib.Path(output_path).resolve()
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media = output.parent / "media"
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audio_path = media / "WBV2P5002-silence.wav"
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image_path = media / "WBV2P5002-frame.png"
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write_silence(audio_path)
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bpy.ops.wm.read_factory_settings(use_empty=True)
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image = bpy.data.images.new("WBV2P5002Frame", width=8, height=8, alpha=True)
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image.generated_color = (0.12, 0.35, 0.8, 1.0)
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image.filepath_raw = str(image_path)
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image.file_format = "PNG"
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image.save()
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bpy.data.images.remove(image)
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scene = bpy.context.scene
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scene.name = "WBV2P5002MediaScene"
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scene.frame_start = 1
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scene.frame_end = 48
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scene.frame_set(1)
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scene.render.fps = 24
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scene.render.fps_base = 1.0
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tree = bpy.data.node_groups.new("WBV2P5002CompositorTree", "CompositorNodeTree")
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scene.compositing_node_group = tree
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tree.interface.new_socket(name="Image", in_out="OUTPUT", socket_type="NodeSocketColor")
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color = tree.nodes.new("CompositorNodeRGB")
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color.name = "WBV2P5002Constant"
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color.outputs["Color"].default_value = (0.1, 0.2, 0.4, 1.0)
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exposure = tree.nodes.new("CompositorNodeExposure")
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exposure.name = "WBV2P5002Exposure"
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exposure.inputs["Exposure"].default_value = 0.5
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invert = tree.nodes.new("CompositorNodeInvert")
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invert.name = "WBV2P5002Invert"
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composite = tree.nodes.new("NodeGroupOutput")
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composite.name = "WBV2P5002Composite"
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tree.links.new(color.outputs["Color"], exposure.inputs["Image"])
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tree.links.new(exposure.outputs["Image"], invert.inputs["Color"])
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tree.links.new(invert.outputs["Color"], composite.inputs["Image"])
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editor = scene.sequence_editor_create()
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sound = editor.strips.new_sound("WBV2P5002Sound", str(audio_path), channel=1, frame_start=1)
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sound.sound.filepath = "//media/WBV2P5002-silence.wav"
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sound.mute = True
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image_strip = editor.strips.new_image("WBV2P5002Image", str(image_path), channel=2, frame_start=1)
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image_strip.directory = "//media/"
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image_strip.elements[0].filename = "WBV2P5002-frame.png"
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image_strip.frame_final_duration = 24
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second = editor.strips.new_image("WBV2P5002ImageB", str(image_path), channel=3, frame_start=1)
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second.directory = "//media/"
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second.elements[0].filename = "WBV2P5002-frame.png"
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second.frame_final_duration = 24
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cross = editor.strips.new_effect("WBV2P5002Cross", "CROSS", channel=4, frame_start=1, length=24, input1=image_strip, input2=second)
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cross.mute = True
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output.parent.mkdir(parents=True, exist_ok=True)
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bpy.ops.wm.save_as_mainfile(filepath=str(output), check_existing=False, compress=True)
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if __name__ == "__main__":
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arguments = sys.argv[sys.argv.index("--") + 1 :]
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if len(arguments) != 1:
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raise SystemExit("usage: blender -b --factory-startup --python WBV2-P5-002.py -- OUTPUT")
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main(arguments[0])
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