diff --git a/app/node/factory.cpp b/app/node/factory.cpp
index 07e0fa3a3..ed2f15c78 100644
--- a/app/node/factory.cpp
+++ b/app/node/factory.cpp
@@ -33,6 +33,7 @@
#include "distort/transform/transformdistortnode.h"
#include "effect/opacity/opacityeffect.h"
#include "generator/matrix/matrix.h"
+#include "generator/noise/noise.h"
#include "generator/polygon/polygon.h"
#include "generator/shape/shapenode.h"
#include "generator/solid/solid.h"
@@ -255,6 +256,8 @@ Node *NodeFactory::CreateFromFactoryIndex(const NodeFactory::InternalID &id)
return new NodeGroup();
case kOpacityEffect:
return new OpacityEffect();
+ case kNoiseGenerator:
+ return new NoiseGeneratorNode();
case kInternalNodeCount:
break;
diff --git a/app/node/factory.h b/app/node/factory.h
index c576f96a3..24da96373 100644
--- a/app/node/factory.h
+++ b/app/node/factory.h
@@ -63,6 +63,7 @@ public:
kShapeGenerator,
kGroupNode,
kOpacityEffect,
+ kNoiseGenerator,
// Count value
kInternalNodeCount
diff --git a/app/node/generator/CMakeLists.txt b/app/node/generator/CMakeLists.txt
index dfdabb071..74432a826 100644
--- a/app/node/generator/CMakeLists.txt
+++ b/app/node/generator/CMakeLists.txt
@@ -15,6 +15,7 @@
# along with this program. If not, see .
add_subdirectory(matrix)
+add_subdirectory(noise)
add_subdirectory(polygon)
add_subdirectory(shape)
add_subdirectory(solid)
diff --git a/app/node/generator/noise/CMakeLists.txt b/app/node/generator/noise/CMakeLists.txt
new file mode 100644
index 000000000..d883c2737
--- /dev/null
+++ b/app/node/generator/noise/CMakeLists.txt
@@ -0,0 +1,22 @@
+# Olive - Non-Linear Video Editor
+# Copyright (C) 2021 Olive Team
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+set(OLIVE_SOURCES
+ ${OLIVE_SOURCES}
+ node/generator/noise/noise.h
+ node/generator/noise/noise.cpp
+ PARENT_SCOPE
+)
diff --git a/app/node/generator/noise/noise.cpp b/app/node/generator/noise/noise.cpp
new file mode 100644
index 000000000..21eaa215e
--- /dev/null
+++ b/app/node/generator/noise/noise.cpp
@@ -0,0 +1,82 @@
+/***
+
+ Olive - Non-Linear Video Editor
+ Copyright (C) 2021 Olive Team
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+***/
+
+#include "noise.h"
+
+namespace olive {
+
+const QString NoiseGeneratorNode::kColorInput = QStringLiteral("color_in");
+const QString NoiseGeneratorNode::kStrengthInput = QStringLiteral("strength_in");
+
+NoiseGeneratorNode::NoiseGeneratorNode()
+{
+ AddInput(kStrengthInput, NodeValue::kFloat, 20);
+
+ AddInput(kColorInput, NodeValue::kBoolean, false);
+}
+
+Node* NoiseGeneratorNode::copy() const
+{
+ return new NoiseGeneratorNode();
+}
+
+QString NoiseGeneratorNode::Name() const
+{
+ return tr("Noise");
+}
+
+QString NoiseGeneratorNode::id() const
+{
+ return QStringLiteral("org.olivevideoeditor.Olive.noise");
+}
+
+QVector NoiseGeneratorNode::Category() const
+{
+ return {kCategoryGenerator};
+}
+
+QString NoiseGeneratorNode::Description() const
+{
+ return tr("Generates noise patterns");
+}
+
+void NoiseGeneratorNode::Retranslate()
+{
+ SetInputName(kStrengthInput, tr("Strength"));
+ SetInputName(kColorInput, tr("Color"));
+}
+
+ShaderCode NoiseGeneratorNode::GetShaderCode(const QString& shader_id) const {
+ Q_UNUSED(shader_id)
+ return ShaderCode(FileFunctions::ReadFileAsString(":/shaders/noise.frag"));
+}
+
+void NoiseGeneratorNode::Value(const NodeValueRow &value, const NodeGlobals &globals, NodeValueTable *table) const
+{
+ ShaderJob job;
+
+ job.InsertValue(value);
+ job.InsertValue(QStringLiteral("time_in"), NodeValue(NodeValue::kFloat, globals.time().in().toDouble(), this));
+
+
+ table->Push(NodeValue::kShaderJob, QVariant::fromValue(job), this);
+
+}
+}
diff --git a/app/node/generator/noise/noise.h b/app/node/generator/noise/noise.h
new file mode 100644
index 000000000..31dfd2f3b
--- /dev/null
+++ b/app/node/generator/noise/noise.h
@@ -0,0 +1,53 @@
+/***
+
+ Olive - Non-Linear Video Editor
+ Copyright (C) 2021 Olive Team
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+***/
+
+#ifndef NOISEGENERATORNODE_H
+#define NOISEGENERATORNODE_H
+
+#include "node/node.h"
+
+namespace olive {
+
+class NoiseGeneratorNode : public Node {
+ Q_OBJECT
+ public:
+ NoiseGeneratorNode();
+
+ NODE_DEFAULT_DESTRUCTOR(NoiseGeneratorNode)
+
+ virtual Node *copy() const override;
+
+ virtual QString Name() const override;
+ virtual QString id() const override;
+ virtual QVector Category() const override;
+ virtual QString Description() const override;
+
+ virtual void Retranslate() override;
+
+ virtual ShaderCode GetShaderCode(const QString &shader_id) const override;
+ virtual void Value(const NodeValueRow &value, const NodeGlobals &globals, NodeValueTable *table) const override;
+
+ static const QString kColorInput;
+ static const QString kStrengthInput;
+};
+
+} // namespace olive
+
+#endif // NOISEGENERATORNODE_H
diff --git a/app/shaders/noise.frag b/app/shaders/noise.frag
new file mode 100644
index 000000000..377c87357
--- /dev/null
+++ b/app/shaders/noise.frag
@@ -0,0 +1,38 @@
+uniform float time_in;
+varying vec2 ove_texcoord;
+
+uniform float strength_in;
+uniform bool color_in;
+//uniform bool blend;
+
+// precision lowp float;
+
+float PHI = 1.61803398874989484820459 * 00000.1; // Golden Ratio
+float PI = 3.14159265358979323846264 * 00000.1; // PI
+float SQ2 = 1.41421356237309504880169 * 10000.0; // Square Root of Two
+
+bool isNan( float val )
+{
+ return ( val < 0.0 || 0.0 < val || val == 0.0 ) ? false : true;
+ // important: some nVidias failed to cope with version below.
+ // Probably wrong optimization.
+ /*return ( val <= 0.0 || 0.0 <= val ) ? false : true;*/
+
+ // Taken from: https://stackoverflow.com/questions/11810158/how-to-deal-with-nan-or-inf-in-opengl-es-2-0-shaders
+}
+
+float gold_noise(vec2 coordinate, float seed){
+ float value = fract(tan(distance(coordinate*(seed+PHI), vec2(PHI, PI)))*SQ2)*(strength_in*0.01);
+ return isNan(value) ? 0.0 : value;
+}
+
+void main(void) {
+ vec3 noise;
+ if (color_in) {
+ noise = vec3(gold_noise(ove_texcoord, time_in + 42069.0), gold_noise(ove_texcoord, time_in + 69220.0), gold_noise(ove_texcoord, time_in + 1337.0));
+ } else {
+ noise = vec3(gold_noise(ove_texcoord, time_in + 69420.0));
+ }
+
+ gl_FragColor = vec4(noise, 1.0);
+}