From 27727fdde50cac8a1ce72a73dd4b3e646ded5e03 Mon Sep 17 00:00:00 2001
From: Devin Pentecost <devinpentecost@gmail.com>
Date: Sat, 4 May 2019 23:50:24 -0700
Subject: [PATCH] Adding OpenSimplexNoise Viewer demo

---
 .../OpenSimplexNoise_Viewer.gd                |  92 +++++++++++++
 .../OpenSimplexNoise_Viewer.shader            |  21 +++
 .../OpenSimplexNoise_Viewer.tres              |   8 ++
 .../OpenSimplexNoise_Viewer.tscn              | 125 ++++++++++++++++++
 misc/opensimplexnoise/icon.png                | Bin 0 -> 5437 bytes
 misc/opensimplexnoise/icon.png.import         |  34 +++++
 misc/opensimplexnoise/project.godot           |  27 ++++
 7 files changed, 307 insertions(+)
 create mode 100644 misc/opensimplexnoise/OpenSimplexNoise_Viewer.gd
 create mode 100644 misc/opensimplexnoise/OpenSimplexNoise_Viewer.shader
 create mode 100644 misc/opensimplexnoise/OpenSimplexNoise_Viewer.tres
 create mode 100644 misc/opensimplexnoise/OpenSimplexNoise_Viewer.tscn
 create mode 100644 misc/opensimplexnoise/icon.png
 create mode 100644 misc/opensimplexnoise/icon.png.import
 create mode 100644 misc/opensimplexnoise/project.godot

diff --git a/misc/opensimplexnoise/OpenSimplexNoise_Viewer.gd b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.gd
new file mode 100644
index 00000000..02a34518
--- /dev/null
+++ b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.gd
@@ -0,0 +1,92 @@
+extends Control
+
+var noise = OpenSimplexNoise.new()
+
+var noise_size = 500
+var min_noise = -1
+var max_noise = 1
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	
+	#Set up noise with basic info
+	$ParameterContainer/SeedSpinBox.value = noise.seed
+	$ParameterContainer/LacunaritySpinBox.value = noise.lacunarity
+	$ParameterContainer/OctavesSpinBox.value = noise.octaves
+	$ParameterContainer/PeriodSpinBox.value = noise.period
+	$ParameterContainer/PersistenceSpinBox.value = noise.persistence
+	
+	#Render the noise
+	_refresh_noise_images()
+	
+
+func _refresh_noise_images():
+	
+	#Get a new image
+	var image = noise.get_seamless_image(500)
+	var image_texture = ImageTexture.new()
+	
+	#Adjust min/max for shader
+	var _min = ((min_noise + 1)/2)
+	var _max = ((max_noise + 1)/2)
+	var _material = $SeamlessNoiseTexture.material
+	_material.set_shader_param("min_value", _min)
+	_material.set_shader_param("max_value", _max)
+	
+	#Draw it
+	image_texture.create_from_image(image)
+	$SeamlessNoiseTexture.texture = image_texture
+	
+
+func _on_DocumentationButton_pressed():
+	OS.shell_open("https://docs.godotengine.org/en/latest/classes/class_opensimplexnoise.html")
+	
+
+func _on_SeedSpinBox_value_changed(value):
+	
+	#Update the noise seed
+	noise.seed = value
+	_refresh_noise_images()
+	
+
+func _on_LacunaritySpinBox_value_changed(value):
+	
+	#Update noise
+	noise.lacunarity = value
+	_refresh_noise_images()
+	
+
+func _on_OctavesSpinBox_value_changed(value):
+	
+	#Update noise
+	noise.octaves = value
+	_refresh_noise_images()
+	
+
+func _on_PeriodSpinBox_value_changed(value):
+	
+	#Update noise
+	noise.period = value
+	_refresh_noise_images()
+	
+
+func _on_PersistenceSpinBox_value_changed(value):
+	
+	#Update noise
+	noise.persistence = value
+	_refresh_noise_images()
+	
+
+func _on_MinClipSpinBox_value_changed(value):
+	
+	#Just refresh
+	min_noise = value
+	_refresh_noise_images()
+	
+
+func _on_MaxClipSpinBox_value_changed(value):
+	
+	#Just refresh
+	max_noise = value
+	_refresh_noise_images()
+	
diff --git a/misc/opensimplexnoise/OpenSimplexNoise_Viewer.shader b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.shader
new file mode 100644
index 00000000..bf141b47
--- /dev/null
+++ b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.shader
@@ -0,0 +1,21 @@
+shader_type canvas_item;
+
+uniform float min_value = -1;
+uniform float max_value = 1;
+
+void fragment() {
+	
+	//Get the color
+	vec4 color = texture(TEXTURE, UV);
+	
+	//Compare the value
+	float gray = color.x;
+	if (gray < min_value){
+		color = vec4(0, 0, 0, 1);
+	}else if (gray > max_value) {
+		color = vec4(1, 1, 1, 1);
+	}
+	
+	//Write back the color
+	COLOR = color;
+}
\ No newline at end of file
diff --git a/misc/opensimplexnoise/OpenSimplexNoise_Viewer.tres b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.tres
new file mode 100644
index 00000000..8cb3e14d
--- /dev/null
+++ b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.tres
@@ -0,0 +1,8 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=2]
+
+[ext_resource path="res://OpenSimplexNoise_Viewer.shader" type="Shader" id=1]
+
+[resource]
+shader = ExtResource( 1 )
+shader_param/min_value = -1.0
+shader_param/max_value = 1.0
diff --git a/misc/opensimplexnoise/OpenSimplexNoise_Viewer.tscn b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.tscn
new file mode 100644
index 00000000..a77aef39
--- /dev/null
+++ b/misc/opensimplexnoise/OpenSimplexNoise_Viewer.tscn
@@ -0,0 +1,125 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://OpenSimplexNoise_Viewer.gd" type="Script" id=1]
+[ext_resource path="res://OpenSimplexNoise_Viewer.tres" type="Material" id=2]
+
+[node name="OpenSimplexNoise Viewer" type="Control"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+margin_left = 8.42108
+margin_top = -5.26315
+margin_right = 8.42114
+margin_bottom = -5.26318
+script = ExtResource( 1 )
+
+[node name="DocumentationButton" type="Button" parent="."]
+anchor_left = 1.0
+anchor_right = 1.0
+margin_top = 20.0
+margin_right = -20.0
+grow_horizontal = 0
+text = "API Documentation"
+
+[node name="SeamlessNoiseTexture" type="TextureRect" parent="."]
+material = ExtResource( 2 )
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+margin_left = 30.0
+margin_top = -20.0
+margin_right = 70.0
+margin_bottom = 20.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="ParameterContainer" type="VBoxContainer" parent="."]
+editor/display_folded = true
+margin_left = 20.0
+margin_top = 20.0
+margin_right = 300.0
+margin_bottom = 40.0
+
+[node name="SeedSpinBox" type="SpinBox" parent="ParameterContainer"]
+margin_right = 280.0
+margin_bottom = 24.0
+min_value = -1.53049e+009
+max_value = 1.53049e+009
+rounded = true
+allow_greater = true
+allow_lesser = true
+prefix = "Seed:"
+
+[node name="LacunaritySpinBox" type="SpinBox" parent="ParameterContainer"]
+margin_top = 28.0
+margin_right = 280.0
+margin_bottom = 52.0
+max_value = 1e+008
+step = 0.01
+allow_greater = true
+prefix = "Lacunarity:"
+
+[node name="PeriodSpinBox" type="SpinBox" parent="ParameterContainer"]
+margin_top = 56.0
+margin_right = 280.0
+margin_bottom = 80.0
+min_value = -1e+008
+max_value = 1e+008
+step = 0.01
+allow_greater = true
+prefix = "Period:"
+
+[node name="PersistenceSpinBox" type="SpinBox" parent="ParameterContainer"]
+margin_top = 84.0
+margin_right = 280.0
+margin_bottom = 108.0
+max_value = 1e+008
+step = 0.01
+allow_greater = true
+prefix = "Persistance:"
+
+[node name="OctavesSpinBox" type="SpinBox" parent="ParameterContainer"]
+margin_top = 112.0
+margin_right = 280.0
+margin_bottom = 136.0
+min_value = 1.0
+max_value = 10.0
+value = 1.0
+allow_greater = true
+prefix = "Octaves:"
+
+[node name="ClipContainer" type="VBoxContainer" parent="."]
+anchor_top = 1.0
+anchor_bottom = 1.0
+margin_left = 20.0
+margin_top = -72.0
+margin_right = 300.0
+margin_bottom = -20.0
+grow_vertical = 0
+
+[node name="MinClipSpinBox" type="SpinBox" parent="ClipContainer"]
+margin_right = 280.0
+margin_bottom = 24.0
+min_value = -1.0
+max_value = 1.0
+step = 0.01
+value = -1.0
+prefix = "Min:"
+
+[node name="MaxClipSpinBox" type="SpinBox" parent="ClipContainer"]
+margin_top = 28.0
+margin_right = 280.0
+margin_bottom = 52.0
+min_value = -1.0
+max_value = 1.0
+step = 0.01
+value = 1.0
+prefix = "Max:"
+[connection signal="pressed" from="DocumentationButton" to="." method="_on_DocumentationButton_pressed"]
+[connection signal="value_changed" from="ParameterContainer/SeedSpinBox" to="." method="_on_SeedSpinBox_value_changed"]
+[connection signal="value_changed" from="ParameterContainer/LacunaritySpinBox" to="." method="_on_LacunaritySpinBox_value_changed"]
+[connection signal="value_changed" from="ParameterContainer/PeriodSpinBox" to="." method="_on_PeriodSpinBox_value_changed"]
+[connection signal="value_changed" from="ParameterContainer/PersistenceSpinBox" to="." method="_on_PersistenceSpinBox_value_changed"]
+[connection signal="value_changed" from="ParameterContainer/OctavesSpinBox" to="." method="_on_OctavesSpinBox_value_changed"]
+[connection signal="value_changed" from="ClipContainer/MinClipSpinBox" to="." method="_on_MinClipSpinBox_value_changed"]
+[connection signal="value_changed" from="ClipContainer/MaxClipSpinBox" to="." method="_on_MaxClipSpinBox_value_changed"]
diff --git a/misc/opensimplexnoise/icon.png b/misc/opensimplexnoise/icon.png
new file mode 100644
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diff --git a/misc/opensimplexnoise/icon.png.import b/misc/opensimplexnoise/icon.png.import
new file mode 100644
index 00000000..96cbf462
--- /dev/null
+++ b/misc/opensimplexnoise/icon.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.png"
+dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0
diff --git a/misc/opensimplexnoise/project.godot b/misc/opensimplexnoise/project.godot
new file mode 100644
index 00000000..d5157029
--- /dev/null
+++ b/misc/opensimplexnoise/project.godot
@@ -0,0 +1,27 @@
+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=4
+
+_global_script_classes=[  ]
+_global_script_class_icons={
+
+}
+
+[application]
+
+config/name="OpenSimplexNoise Viewer"
+run/main_scene="res://OpenSimplexNoise_Viewer.tscn"
+config/icon="res://icon.png"
+
+[rendering]
+
+quality/driver/driver_name="GLES2"
+vram_compression/import_etc=true
+vram_compression/import_etc2=false
+environment/default_environment="res://default_env.tres"