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36 lines
1.5 KiB
GDScript
36 lines
1.5 KiB
GDScript
tool
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extends "res://addons/procedural_material/node_base.gd"
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var amount = 0.0
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func _ready():
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set_slot(0, true, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
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set_slot(1, true, 0, Color(0.5, 0.5, 1), false, 0, Color(0.5, 0.5, 1))
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initialize_properties([ $amount ])
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func get_shader_code(uv):
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var rv = { defs="", code="" }
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var src0 = get_source(0)
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var src1 = get_source(1)
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if src0 == null || src1 == null:
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return rv
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var variant_index = generated_variants.find(uv)
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if variant_index == -1:
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variant_index = generated_variants.size()
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generated_variants.append(uv)
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var src1_code0 = src1.get_shader_code(uv+"+vec2(0.01, 0.0)")
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var src1_code1 = src1.get_shader_code(uv+"-vec2(0.01, 0.0)")
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var src1_code2 = src1.get_shader_code(uv+"+vec2(0.0, 0.01)")
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var src1_code3 = src1.get_shader_code(uv+"-vec2(0.0, 0.01)")
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rv.defs = src1_code0.defs
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rv.code = src1_code0.code+src1_code1.code+src1_code2.code+src1_code3.code
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rv.code += "vec2 "+name+"_"+str(variant_index)+"_uv = "+uv+"+"+str(amount)+"*vec2("+get_source_f(src1_code0)+"-"+get_source_f(src1_code1)+", "+get_source_f(src1_code2)+"-"+get_source_f(src1_code3)+");\n"
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var src0_code = src0.get_shader_code(name+"_"+str(variant_index)+"_uv")
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rv.defs += src0_code.defs
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rv.code += src0_code.code
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rv.code += "vec3 "+name+"_"+str(variant_index)+"_rgb = "+get_source_rgb(src0_code)+";\n"
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rv.code += "float "+name+"_"+str(variant_index)+"_f = "+get_source_f(src0_code)+";\n"
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rv.rgb = name+"_"+str(variant_index)+"_rgb"
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rv.f = name+"_"+str(variant_index)+"_f"
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return rv
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