mirror of
https://github.com/Relintai/material-maker.git
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71 lines
2.4 KiB
GDScript
71 lines
2.4 KiB
GDScript
extends MMGraphNodeBase
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onready var playback = $AudioStreamPlayer.get_stream_playback()
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var samples_played = 0
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func _ready():
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set_process(false)
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func set_generator(g) -> void:
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.set_generator(g)
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generator.connect("parameter_changed", self, "on_parameter_changed")
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on_parameter_changed(null, null)
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func on_parameter_changed(p, v):
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$Timer.start()
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func update_shader():
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var src = generator.get_source(0)
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var result = { code="", sound="vec2(0.0)", globals=[] }
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if src != null:
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var context : MMGenContext = MMGenContext.new()
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result = src.generator.get_shader_code("vec3(s2ttime(UV))", src.output_index, context)
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while result is GDScriptFunctionState:
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result = yield(result, "completed")
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var code : String = "shader_type canvas_item;\n"
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code += "render_mode blend_disabled;\n"
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code += "uniform float start_time = 0.0;\n"
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code += "const float buffer_size = 64.0;\n"
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code += "float s2ttime(vec2 uv) {\nreturn start_time+(floor(uv.x*buffer_size)+buffer_size*floor(uv.y*buffer_size))/44100.0;\n}\n"
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#code += "vec4 au2tex(vec2 s) {\nvec2 v = floor((0.5+0.5*s)*65536.0);\nvec2 vl = mod(v, 256.0)/255.0;\nvec2 vh = floor(v/256.0)/255.0;\nreturn vec4(vh.x, vl.x, vh.y, vl.y);\n}\n"
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code += "vec4 au2tex(vec2 s) {\nreturn vec4(s.x, s.y, 0.0, 0.0);\n}\n"
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for g in result.globals:
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code += g
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code += "void fragment() {\n"
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code += result.code;
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code += "COLOR = au2tex("+result.sound+");"
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code += "}"
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$ViewportContainer/Viewport/ColorRect.material.shader.code = code
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samples_played = 0
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$ViewportContainer/Viewport/ColorRect.material.set_shader_param("start_time", 0.0)
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func _on_Button_pressed():
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if $AudioStreamPlayer.playing:
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$AudioStreamPlayer.stop()
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set_process(false)
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$Button.text = "Play"
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else:
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update_shader()
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samples_played = 0
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$ViewportContainer/Viewport/ColorRect.material.set_shader_param("start_time", 0.0)
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$AudioStreamPlayer.play()
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set_process(true)
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$Button.text = "Stop"
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func _process(delta):
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var image = $ViewportContainer/Viewport.get_texture().get_data()
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var to_fill = min(playback.get_frames_available(), image.data.width*image.data.height)
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var i : int = 0
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image.lock()
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for j in range(to_fill):
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var p = image.get_pixel(j%image.data.width, j/image.data.width)
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var left = p.r
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var right = p.g
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playback.push_frame(Vector2(left, right))
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i += 4
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samples_played += to_fill
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image.unlock()
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$ViewportContainer/Viewport/ColorRect.material.set_shader_param("start_time", samples_played/44100.0)
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