6 files changed, 44 insertions, 18 deletions
diff --git a/modules/opensimplex/doc_classes/NoiseTexture.xml b/modules/opensimplex/doc_classes/NoiseTexture.xml
index 86e7f9cc08..a12412a9cd 100644
--- a/modules/opensimplex/doc_classes/NoiseTexture.xml
+++ b/modules/opensimplex/doc_classes/NoiseTexture.xml
@@ -6,11 +6,12 @@
 	<description>
 		Uses an [OpenSimplexNoise] to fill the texture data. You can specify the texture size but keep in mind that larger textures will take longer to generate and seamless noise only works with square sized textures.
 		NoiseTexture can also generate normal map textures.
-		The class uses [Thread]s to generate the texture data internally, so [method Texture2D.get_data] may return [code]null[/code] if the generation process has not completed yet. In that case, you need to wait for the texture to be generated before accessing the data:
+		The class uses [Thread]s to generate the texture data internally, so [method Texture2D.get_image] may return [code]null[/code] if the generation process has not completed yet. In that case, you need to wait for the texture to be generated before accessing the image and the generated byte data:
 		[codeblock]
 		var texture = preload("res://noise.tres")
 		yield(texture, "changed")
-		var image = texture.get_data()
+		var image = texture.get_image()
+		var data = image.get_data()
 		[/codeblock]
 	</description>
 	<tutorials>
@@ -30,6 +31,9 @@
 		<member name="noise" type="OpenSimplexNoise" setter="set_noise" getter="get_noise">
 			The [OpenSimplexNoise] instance used to generate the noise.
 		</member>
+		<member name="noise_offset" type="Vector2" setter="set_noise_offset" getter="get_noise_offset" default="Vector2( 0, 0 )">
+			An offset used to specify the noise space coordinate of the top left corner of the generated noise. This value is ignored if [member seamless] is enabled.
+		</member>
 		<member name="seamless" type="bool" setter="set_seamless" getter="get_seamless" default="false">
 			Whether the texture can be tiled without visible seams or not. Seamless textures take longer to generate.
 			[b]Note:[/b] Seamless noise has a lower contrast compared to non-seamless noise. This is due to the way noise uses higher dimensions for generating seamless noise.
diff --git a/modules/opensimplex/doc_classes/OpenSimplexNoise.xml b/modules/opensimplex/doc_classes/OpenSimplexNoise.xml
index ad82f87213..2fdbd61ee7 100644
--- a/modules/opensimplex/doc_classes/OpenSimplexNoise.xml
+++ b/modules/opensimplex/doc_classes/OpenSimplexNoise.xml
@@ -31,8 +31,10 @@
 			</argument>
 			<argument index="1" name="height" type="int">
 			</argument>
+			<argument index="2" name="noise_offset" type="Vector2" default="Vector2( 0, 0 )">
+			</argument>
 			<description>
-				Generate a noise image in [constant Image.FORMAT_L8] format with the requested [code]width[/code] and [code]height[/code], based on the current noise parameters.
+				Generate a noise image in [constant Image.FORMAT_L8] format with the requested [code]width[/code] and [code]height[/code], based on the current noise parameters. If [code]noise_offset[/code] is specified, then the offset value is used as the coordinates of the top-left corner of the generated noise.
 			</description>
 		</method>
 		<method name="get_noise_1d" qualifiers="const">
diff --git a/modules/opensimplex/noise_texture.cpp b/modules/opensimplex/noise_texture.cpp
index f5d401b058..9e0155da94 100644
--- a/modules/opensimplex/noise_texture.cpp
+++ b/modules/opensimplex/noise_texture.cpp
@@ -52,6 +52,9 @@ void NoiseTexture::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_noise", "noise"), &NoiseTexture::set_noise);
 	ClassDB::bind_method(D_METHOD("get_noise"), &NoiseTexture::get_noise);
 
+	ClassDB::bind_method(D_METHOD("set_noise_offset", "noise_offset"), &NoiseTexture::set_noise_offset);
+	ClassDB::bind_method(D_METHOD("get_noise_offset"), &NoiseTexture::get_noise_offset);
+
 	ClassDB::bind_method(D_METHOD("set_seamless", "seamless"), &NoiseTexture::set_seamless);
 	ClassDB::bind_method(D_METHOD("get_seamless"), &NoiseTexture::get_seamless);
 
@@ -71,6 +74,7 @@ void NoiseTexture::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "as_normal_map"), "set_as_normal_map", "is_normal_map");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "bump_strength", PROPERTY_HINT_RANGE, "0,32,0.1,or_greater"), "set_bump_strength", "get_bump_strength");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "noise", PROPERTY_HINT_RESOURCE_TYPE, "OpenSimplexNoise"), "set_noise", "get_noise");
+	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "noise_offset"), "set_noise_offset", "get_noise_offset");
 }
 
 void NoiseTexture::_validate_property(PropertyInfo &property) const {
@@ -81,9 +85,9 @@ void NoiseTexture::_validate_property(PropertyInfo &property) const {
 	}
 }
 
-void NoiseTexture::_set_texture_data(const Ref<Image> &p_image) {
-	data = p_image;
-	if (data.is_valid()) {
+void NoiseTexture::_set_texture_image(const Ref<Image> &p_image) {
+	image = p_image;
+	if (image.is_valid()) {
 		if (texture.is_valid()) {
 			RID new_texture = RS::get_singleton()->texture_2d_create(p_image);
 			RS::get_singleton()->texture_replace(texture, new_texture);
@@ -95,7 +99,7 @@ void NoiseTexture::_set_texture_data(const Ref<Image> &p_image) {
 }
 
 void NoiseTexture::_thread_done(const Ref<Image> &p_image) {
-	_set_texture_data(p_image);
+	_set_texture_image(p_image);
 	noise_thread.wait_to_finish();
 	if (regen_queued) {
 		noise_thread.start(_thread_function, this);
@@ -130,7 +134,7 @@ Ref<Image> NoiseTexture::_generate_texture() {
 	if (seamless) {
 		image = ref_noise->get_seamless_image(size.x);
 	} else {
-		image = ref_noise->get_image(size.x, size.y);
+		image = ref_noise->get_image(size.x, size.y, noise_offset);
 	}
 
 	if (as_normal_map) {
@@ -159,7 +163,7 @@ void NoiseTexture::_update_texture() {
 
 	} else {
 		Ref<Image> image = _generate_texture();
-		_set_texture_data(image);
+		_set_texture_image(image);
 	}
 	update_queued = false;
 }
@@ -198,6 +202,14 @@ void NoiseTexture::set_height(int p_height) {
 	_queue_update();
 }
 
+void NoiseTexture::set_noise_offset(Vector2 p_noise_offset) {
+	if (noise_offset == p_noise_offset) {
+		return;
+	}
+	noise_offset = p_noise_offset;
+	_queue_update();
+}
+
 void NoiseTexture::set_seamless(bool p_seamless) {
 	if (p_seamless == seamless) {
 		return;
@@ -245,6 +257,10 @@ int NoiseTexture::get_height() const {
 	return size.y;
 }
 
+Vector2 NoiseTexture::get_noise_offset() const {
+	return noise_offset;
+}
+
 RID NoiseTexture::get_rid() const {
 	if (!texture.is_valid()) {
 		texture = RS::get_singleton()->texture_2d_placeholder_create();
@@ -253,6 +269,6 @@ RID NoiseTexture::get_rid() const {
 	return texture;
 }
 
-Ref<Image> NoiseTexture::get_data() const {
-	return data;
+Ref<Image> NoiseTexture::get_image() const {
+	return image;
 }
diff --git a/modules/opensimplex/noise_texture.h b/modules/opensimplex/noise_texture.h
index e89479d962..20a53bb58b 100644
--- a/modules/opensimplex/noise_texture.h
+++ b/modules/opensimplex/noise_texture.h
@@ -43,7 +43,7 @@ class NoiseTexture : public Texture2D {
 	GDCLASS(NoiseTexture, Texture2D);
 
 private:
-	Ref<Image> data;
+	Ref<Image> image;
 
 	Thread noise_thread;
 
@@ -56,6 +56,7 @@ private:
 
 	Ref<OpenSimplexNoise> noise;
 	Vector2i size = Vector2i(512, 512);
+	Vector2 noise_offset;
 	bool seamless = false;
 	bool as_normal_map = false;
 	float bump_strength = 8.0;
@@ -66,7 +67,7 @@ private:
 	void _queue_update();
 	Ref<Image> _generate_texture();
 	void _update_texture();
-	void _set_texture_data(const Ref<Image> &p_image);
+	void _set_texture_image(const Ref<Image> &p_image);
 
 protected:
 	static void _bind_methods();
@@ -79,6 +80,9 @@ public:
 	void set_width(int p_width);
 	void set_height(int p_height);
 
+	void set_noise_offset(Vector2 p_noise_offset);
+	Vector2 get_noise_offset() const;
+
 	void set_seamless(bool p_seamless);
 	bool get_seamless();
 
@@ -94,7 +98,7 @@ public:
 	virtual RID get_rid() const override;
 	virtual bool has_alpha() const override { return false; }
 
-	virtual Ref<Image> get_data() const override;
+	virtual Ref<Image> get_image() const override;
 
 	NoiseTexture();
 	virtual ~NoiseTexture();
diff --git a/modules/opensimplex/open_simplex_noise.cpp b/modules/opensimplex/open_simplex_noise.cpp
index 3773946112..f0a8867284 100644
--- a/modules/opensimplex/open_simplex_noise.cpp
+++ b/modules/opensimplex/open_simplex_noise.cpp
@@ -96,7 +96,7 @@ void OpenSimplexNoise::set_lacunarity(float p_lacunarity) {
 	emit_changed();
 }
 
-Ref<Image> OpenSimplexNoise::get_image(int p_width, int p_height) const {
+Ref<Image> OpenSimplexNoise::get_image(int p_width, int p_height, const Vector2 &p_noise_offset) const {
 	Vector<uint8_t> data;
 	data.resize(p_width * p_height);
 
@@ -104,7 +104,7 @@ Ref<Image> OpenSimplexNoise::get_image(int p_width, int p_height) const {
 
 	for (int i = 0; i < p_height; i++) {
 		for (int j = 0; j < p_width; j++) {
-			float v = get_noise_2d(j, i);
+			float v = get_noise_2d(float(j) + p_noise_offset.x, float(i) + p_noise_offset.y);
 			v = v * 0.5 + 0.5; // Normalize [0..1]
 			wd8[(i * p_width + j)] = uint8_t(CLAMP(v * 255.0, 0, 255));
 		}
@@ -161,7 +161,7 @@ void OpenSimplexNoise::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_lacunarity", "lacunarity"), &OpenSimplexNoise::set_lacunarity);
 	ClassDB::bind_method(D_METHOD("get_lacunarity"), &OpenSimplexNoise::get_lacunarity);
 
-	ClassDB::bind_method(D_METHOD("get_image", "width", "height"), &OpenSimplexNoise::get_image);
+	ClassDB::bind_method(D_METHOD("get_image", "width", "height", "noise_offset"), &OpenSimplexNoise::get_image, DEFVAL(Vector2()));
 	ClassDB::bind_method(D_METHOD("get_seamless_image", "size"), &OpenSimplexNoise::get_seamless_image);
 
 	ClassDB::bind_method(D_METHOD("get_noise_1d", "x"), &OpenSimplexNoise::get_noise_1d);
diff --git a/modules/opensimplex/open_simplex_noise.h b/modules/opensimplex/open_simplex_noise.h
index 847c157409..bb50c523d2 100644
--- a/modules/opensimplex/open_simplex_noise.h
+++ b/modules/opensimplex/open_simplex_noise.h
@@ -75,7 +75,7 @@ public:
 	void set_lacunarity(float p_lacunarity);
 	float get_lacunarity() const { return lacunarity; }
 
-	Ref<Image> get_image(int p_width, int p_height) const;
+	Ref<Image> get_image(int p_width, int p_height, const Vector2 &p_noise_offset = Vector2()) const;
 	Ref<Image> get_seamless_image(int p_size) const;
 
 	float get_noise_1d(float x) const;