diff --git a/app/node/factory.cpp b/app/node/factory.cpp
index 273e8ab69..d0d7b12aa 100644
--- a/app/node/factory.cpp
+++ b/app/node/factory.cpp
@@ -27,6 +27,7 @@ void NodeFactory::Initialize()
library_.append(new ExternalNode(":/shaders/boxblur.xml"));
library_.append(new ExternalNode(":/shaders/opacity.xml"));
library_.append(new ExternalNode(":/shaders/solid.xml"));
+ library_.append(new ExternalNode(":/shaders/stroke.xml"));
library_.append(new ExternalNode(":/shaders/alphaover.xml"));
library_.append(new ExternalNode(":/shaders/dropshadow.xml"));
library_.append(new ExternalTransition(":/shaders/crossdissolve.xml"));
diff --git a/app/shaders/dropshadow.xml b/app/shaders/dropshadow.xml
index 31bcfb2eb..5a35a66ef 100644
--- a/app/shaders/dropshadow.xml
+++ b/app/shaders/dropshadow.xml
@@ -5,6 +5,7 @@
Stylize
+ Stylise
@@ -16,9 +17,10 @@
Input
-
+
Color
+ Colour
diff --git a/app/shaders/shaders.qrc b/app/shaders/shaders.qrc
index f4ae6fab0..19a9782f5 100644
--- a/app/shaders/shaders.qrc
+++ b/app/shaders/shaders.qrc
@@ -16,6 +16,8 @@
opacity.xml
solid.frag
solid.xml
+ stroke.frag
+ stroke.xml
videoinput.frag
videoinput.vert
diff --git a/app/shaders/stroke.frag b/app/shaders/stroke.frag
new file mode 100644
index 000000000..20ff1607f
--- /dev/null
+++ b/app/shaders/stroke.frag
@@ -0,0 +1,61 @@
+#version 110
+
+// Standard inputs
+uniform vec2 ove_resolution;
+varying vec2 ove_texcoord;
+uniform int ove_iteration;
+
+// Node parameter inputs
+uniform sampler2D tex_in;
+uniform vec3 color_in;
+uniform float radius_in;
+uniform float opacity_in;
+
+void main(void) {
+ if (radius_in == 0.0 || opacity_in == 0.0) {
+ // No-op, do nothing
+ gl_FragColor = texture2D(tex_in, ove_texcoord);
+ return;
+ }
+
+ float radius = ceil(radius_in);
+
+ float stroke_weight = 0.0;
+
+ // Loop over box
+ for (float i=-radius + 0.5; i<=radius; i += 2.0) {
+ float x_coord = i / ove_resolution.x;
+
+ for (float j=-radius + 0.5; j<=radius; j += 2.0) {
+ float y_coord = j / ove_resolution.y;
+
+ if (abs(length(vec2(i, j))) < radius) {
+ // Get pixel here
+ stroke_weight += texture2D(tex_in, ove_texcoord + vec2(x_coord, y_coord)).a;
+
+ if (stroke_weight >= 1.0) {
+ break;
+ }
+ }
+ }
+
+ if (stroke_weight >= 1.0) {
+ stroke_weight = 1.0;
+ break;
+ }
+ }
+
+ stroke_weight *= opacity_in * 0.01;
+
+ // Make RGBA color
+ vec4 stroke_col = vec4(vec3(1.0) * stroke_weight, stroke_weight);
+ //vec4 stroke_col = vec4(color_in * stroke_weight, stroke_weight);
+
+ // Alpha over color here
+ vec4 pixel_here = texture2D(tex_in, ove_texcoord);
+
+ stroke_col *= 1.0 - pixel_here.a;
+ stroke_col += pixel_here;
+
+ gl_FragColor = stroke_col;
+}
diff --git a/app/shaders/stroke.xml b/app/shaders/stroke.xml
new file mode 100644
index 000000000..a31e0355e
--- /dev/null
+++ b/app/shaders/stroke.xml
@@ -0,0 +1,43 @@
+
+
+
+ Stroke
+
+
+ Stylize
+ Stylise
+
+
+
+ Creates a stroke outline around an image.
+
+
+
+
+ Input
+
+
+
+
+ Color
+ Colour
+
+
+
+
+ Radius
+ 0
+ 10
+
+
+
+
+ Opacity
+ 0
+ 100
+ 100
+
+
+
+
+