material-maker/addons/material_maker/nodes/adjust_hsv.gd
RodZill4 1c56fc60d8 Cleanup and renaming
Moved Material Spray to another repository.
Renamed the addon directory to material_maker
2018-09-03 21:35:44 +02:00

29 lines
1003 B
GDScript

tool
extends "res://addons/material_maker/node_base.gd"
var hue
var saturation
var value
func _ready():
initialize_properties([ $HBoxContainer1/hue, $HBoxContainer2/saturation, $HBoxContainer3/value ])
func _get_shader_code(uv, output = 0):
var rv = { defs="", code="" }
var src = get_source()
var src_code = { defs="", code="", rgb="vec3(0.0)" }
if src == null:
return rv
src_code = src.get_shader_code(uv)
if generated_variants.empty():
rv.defs = src_code.defs;
rv.defs += "vec3 %s_rgb(vec3 c) { vec3 hsv = rgb2hsv(c); return hsv2rgb(vec3(fract(hsv.x+%.9f), clamp(hsv.y*%.9f, 0.0, 1.0), clamp(hsv.z*%.9f, 0.0, 1.0))); }\n" % [ name, hue, saturation, value ]
var variant_index = generated_variants.find(uv)
if variant_index == -1:
variant_index = generated_variants.size()
generated_variants.append(uv)
rv.code = src_code.code
rv.code += "vec3 %s_%d_rgb = %s_rgb(%s);\n" % [ name, variant_index, name, src_code.rgb ]
rv.rgb = "%s_%d_rgb" % [ name, variant_index ]
return rv