137 lines
4.6 KiB
Python
137 lines
4.6 KiB
Python
import math
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TREE_MAIN = "LFO"
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class TriangleNode:
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def __init__(self) -> None:
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pass
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"position": ("FLOAT", {"default": 0.0, "step": 0.001}),
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"phase_offset": ("FLOAT", {"default": 0.5, "step": 0.001}),
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"frequency": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"amplitude": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"offset": ("FLOAT", {"default": 0.0, "step": 0.001}),
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},
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}
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RETURN_TYPES = ("FLOAT",)
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FUNCTION = "triangle_wave"
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CATEGORY = TREE_MAIN
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def triangle_wave(self, position, phase_offset, frequency, amplitude, offset):
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position = position + phase_offset
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phase = (position * frequency) - int(position * frequency)
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return offset + amplitude * (2 * abs(2 * phase - 1) - 1),
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class SineNode:
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def __init__(self) -> None:
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pass
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"position": ("FLOAT", {"default": 0.0, "step": 0.001}),
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"phase_offset": ("FLOAT", {"default": 0.5, "step": 0.001}),
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"frequency": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"amplitude": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"offset": ("FLOAT", {"default": 0.0, "step": 0.001}),
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},
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}
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RETURN_TYPES = ("FLOAT",)
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FUNCTION = "sine_wave"
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CATEGORY = TREE_MAIN
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def sine_wave(self, position, phase_offset, frequency, amplitude, offset):
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position = position + phase_offset
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phase = position * frequency * 2 * math.pi
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return offset + amplitude * math.sin(phase),
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class SawtoothNode:
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def __init__(self) -> None:
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pass
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"position": ("FLOAT", {"default": 0.0, "step": 0.001}),
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"phase_offset": ("FLOAT", {"default": 0.5, "step": 0.001}),
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"frequency": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"amplitude": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"offset": ("FLOAT", {"default": 0.0, "step": 0.001}),
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},
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}
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RETURN_TYPES = ("FLOAT",)
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FUNCTION = "sawtooth_wave"
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CATEGORY = TREE_MAIN
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def sawtooth_wave(self, position, phase_offset, frequency, amplitude, offset):
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position = position + phase_offset
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phase = (position * frequency) - int(position * frequency)
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return offset + amplitude * (2 * phase - 1),
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class SquareNode:
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def __init__(self) -> None:
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pass
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"position": ("FLOAT", {"default": 0.0, "step": 0.001}),
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"phase_offset": ("FLOAT", {"default": 0.5, "step": 0.001}),
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"frequency": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"amplitude": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"offset": ("FLOAT", {"default": 0.0, "step": 0.001}),
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},
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}
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RETURN_TYPES = ("FLOAT",)
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FUNCTION = "square_wave"
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CATEGORY = TREE_MAIN
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def square_wave(self, position, phase_offset, frequency, amplitude, offset):
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position = position + phase_offset
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phase = (position * frequency) - int(position * frequency)
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return offset + amplitude * (1 if phase < 0.5 else -1),
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class PulseNode:
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def __init__(self) -> None:
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pass
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"position": ("FLOAT", {"default": 0.0, "step": 0.001}),
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"phase_offset": ("FLOAT", {"default": 0.5, "step": 0.001}),
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"frequency": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"amplitude": ("FLOAT", {"default": 1.0, "step": 0.001}),
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"offset": ("FLOAT", {"default": 0.0, "step": 0.001}),
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"pulse_width": ("FLOAT", {"default": 0.3, "step": 0.001}),
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},
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}
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RETURN_TYPES = ("FLOAT",)
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FUNCTION = "pulse_wave"
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CATEGORY = TREE_MAIN
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def pulse_wave(self, position, pulse_width, phase_offset, frequency, amplitude, offset):
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position = position + phase_offset
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phase = (position * frequency) - int(position * frequency)
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return offset + amplitude * (1 if phase < pulse_width else -1),
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NODE_CLASS_MAPPINGS = {
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"LFO_Triangle": TriangleNode,
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"LFO_Sine": SineNode,
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"LFO_Sawtooth": SawtoothNode,
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"LFO_Square": SquareNode,
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"LFO_Pulse": PulseNode,
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} |