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22 lines
689 B
GDScript3
22 lines
689 B
GDScript3
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tool
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extends "res://addons/procedural_material/node_base.gd"
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const OUTPUTS = [ "r", "g", "b" ]
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func _get_shader_code(uv, output = 0):
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var rv = { defs="", code="" }
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var src = get_source()
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var src_code = { defs="", code="", rgb="vec3(0.0)" }
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if src != null:
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src_code = src.get_shader_code(uv)
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if generated_variants.empty():
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rv.defs = src_code.defs;
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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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rv.code = src_code.code
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rv.code += "vec3 %s_%d_rgb = %s;\n" % [ name, variant_index, src_code.rgb ]
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rv.f = "%s_%d_rgb.%s" % [ name, variant_index, OUTPUTS[output] ]
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return rv
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