From 583415d5fb7af965646d185d63d8d10d6b9be8b2 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@protonmail.com>
Date: Tue, 26 Oct 2021 17:16:19 +0200
Subject: [PATCH] brightness_contrast node.

---
 .../mat_maker_gd/nodes/common/filter.gd       |  9 +--
 .../nodes/filter/brightness_contrast.gd       | 64 +++++++++++++++++++
 2 files changed, 69 insertions(+), 4 deletions(-)
 create mode 100644 game/addons/mat_maker_gd/nodes/filter/brightness_contrast.gd

diff --git a/game/addons/mat_maker_gd/nodes/common/filter.gd b/game/addons/mat_maker_gd/nodes/common/filter.gd
index f634cbb1..b8b5dc85 100644
--- a/game/addons/mat_maker_gd/nodes/common/filter.gd
+++ b/game/addons/mat_maker_gd/nodes/common/filter.gd
@@ -4256,14 +4256,15 @@ static func adjust_hsv(color : Color, hue : float, saturation : float, value : f
 #output: vec4(clamp($in($uv).rgb*$contrast+vec3($brightness)+0.5-$contrast*0.5, vec3(0.0), vec3(1.0)), $in($uv).a)
 
 static func brightness_contrast(color : Color, brightness : float, contrast : float) -> Color:
-	var bv : Vector3 = Vector3(brightness, brightness, brightness)
-	var cvv : Vector3 = Vector3(color.r * contrast, color.g * contrast, color.b * contrast)
+	#output: vec4(clamp( $in($uv).rgb*$contrast + vec3($brightness) + 0.5 - $contrast*0.5, vec3(0.0), vec3(1.0)), $in($uv).a)
 	
-	var cv : Vector3 = cvv + bv + Vector3(0.5, 0.5, 0.5) - (Vector3(contrast, contrast, contrast) * 0.5)
+	var cvv : Vector3 = Vector3(color.r, color.g, color.b) * contrast
+	
+	var cv : Vector3 = cvv + Vector3(brightness, brightness, brightness) + Vector3(0.5, 0.5, 0.5) - Vector3(contrast, contrast, contrast) * 0.5
 	
 	var v : Vector3 = Commons.clampv3(cv, Vector3(), Vector3(1, 1, 1))
 	
-	return Color(v.x, v.y, v.z, 1);
+	return Color(v.x, v.y, v.z, color.a);
 
 #greyscale
 
diff --git a/game/addons/mat_maker_gd/nodes/filter/brightness_contrast.gd b/game/addons/mat_maker_gd/nodes/filter/brightness_contrast.gd
new file mode 100644
index 00000000..b22db913
--- /dev/null
+++ b/game/addons/mat_maker_gd/nodes/filter/brightness_contrast.gd
@@ -0,0 +1,64 @@
+tool
+extends MMNode
+
+var Commons = preload("res://addons/mat_maker_gd/nodes/common/commons.gd")
+var Filter = preload("res://addons/mat_maker_gd/nodes/common/filter.gd")
+
+export(Resource) var image : Resource
+export(Resource) var input : Resource
+export(float) var brightness : float = 0
+export(float) var contrast : float = 1
+
+func _init_properties():
+	if !input:
+		input = MMNodeUniversalProperty.new()
+		input.default_type = MMNodeUniversalProperty.MMNodeUniversalPropertyDefaultType.DEFAULT_TYPE_COLOR
+		input.set_default_value(Color(0, 0, 0, 1))
+
+	input.input_slot_type = MMNodeUniversalProperty.SlotTypes.SLOT_TYPE_UNIVERSAL
+	input.slot_name = ">>>    Input1    "
+	
+	if !image:
+		image = MMNodeUniversalProperty.new()
+		image.default_type = MMNodeUniversalProperty.MMNodeUniversalPropertyDefaultType.DEFAULT_TYPE_IMAGE
+		
+	#image.input_slot_type = MMNodeUniversalProperty.SlotTypes.SLOT_TYPE_FLOAT
+	image.output_slot_type = MMNodeUniversalProperty.SlotTypes.SLOT_TYPE_IMAGE
+	#image.force_override = true
+
+	register_input_property(input)
+	register_output_property(image)
+
+func _register_methods(mm_graph_node) -> void:
+	mm_graph_node.add_slot_label_universal(input)
+	mm_graph_node.add_slot_texture_universal(image)
+	mm_graph_node.add_slot_float("get_brightness", "set_brightness", "Brightness", 0.01)
+	mm_graph_node.add_slot_float("get_contrast", "set_contrast", "Contrast", 0.01)
+
+func _render(material) -> void:
+	var img : Image = render_image(material)
+
+	image.set_value(img)
+
+func get_value_for(uv : Vector2, pseed : int) -> Color:
+	var c : Color = input.get_value(uv)
+	
+	return Filter.brightness_contrast(c, brightness, contrast)
+
+#brightness
+func get_brightness() -> float:
+	return brightness
+
+func set_brightness(val : float) -> void:
+	brightness = val
+
+	set_dirty(true)
+
+#contrast
+func get_contrast() -> float:
+	return contrast
+
+func set_contrast(val : float) -> void:
+	contrast = val
+
+	set_dirty(true)