36 lines
1.2 KiB
GDScript
36 lines
1.2 KiB
GDScript
extends MeshInstance3D
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@export_group("Animation")
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@export var life_time: float = 8.0
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@export var fade_in_time: float = 4.0
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@export var max_base_alpha: float = 1.0
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func _ready():
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var mat = get_active_material(0).duplicate()
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set_surface_override_material(0, mat)
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#add_to_group("camere")
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#set alpha to 0 before first frame to avoid "pop"
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mat.set_shader_parameter("base_alpha", 0.0)
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animate_godray(mat)
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func animate_godray(mat: ShaderMaterial):
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var tween_alpha = create_tween()
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tween_alpha.tween_property(mat, "shader_parameter/base_alpha", max_base_alpha, fade_in_time).from(0.0)
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var tween_intensity = create_tween()
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#tween from 1.0 to 2.0
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tween_intensity.tween_property(mat, "shader_parameter/intensity_multiplier", 0.2, life_time * 0.3).from(1.0)
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#tween to 0.5
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tween_intensity.tween_property(mat, "shader_parameter/intensity_multiplier", 0.5, life_time * 0.3)
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#tween to 0.0
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tween_intensity.tween_property(mat, "shader_parameter/intensity_multiplier", 0.0, life_time * 0.4)
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tween_intensity.tween_callback(queue_free)
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var tween_edge = create_tween()
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tween_edge.tween_property(mat, "shader_parameter/edge_fade_power", 0.5, life_time * 0.5).from(2.0)
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tween_edge.tween_property(mat, "shader_parameter/edge_fade_power", 2.0, life_time * 0.5)
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