4 files changed, 69 insertions, 0 deletions
diff --git a/src/imports/shapes/shaders/conicalgradient.frag b/src/imports/shapes/shaders/conicalgradient.frag
new file mode 100644
index 0000000000..af5fdd5ee0
--- /dev/null
+++ b/src/imports/shapes/shaders/conicalgradient.frag
@@ -0,0 +1,19 @@
+#define INVERSE_2PI 0.1591549430918953358
+
+uniform sampler2D gradTabTexture;
+uniform lowp float opacity;
+
+uniform highp float angle;
+
+varying highp vec2 coord;
+
+void main()
+{
+    highp float t;
+    if (abs(coord.y) == abs(coord.x))
+        t = (atan(-coord.y + 0.002, coord.x) + angle) * INVERSE_2PI;
+    else
+        t = (atan(-coord.y, coord.x) + angle) * INVERSE_2PI;
+    gl_FragColor = texture2D(gradTabTexture, vec2(t - floor(t), 0.5)) * opacity;
+
+}
diff --git a/src/imports/shapes/shaders/conicalgradient.vert b/src/imports/shapes/shaders/conicalgradient.vert
new file mode 100644
index 0000000000..3350b0675a
--- /dev/null
+++ b/src/imports/shapes/shaders/conicalgradient.vert
@@ -0,0 +1,13 @@
+attribute vec4 vertexCoord;
+attribute vec4 vertexColor;
+
+uniform mat4 matrix;
+uniform vec2 translationPoint;
+
+varying vec2 coord;
+
+void main()
+{
+    coord = vertexCoord.xy - translationPoint;
+    gl_Position = matrix * vertexCoord;
+}
diff --git a/src/imports/shapes/shaders/conicalgradient_core.frag b/src/imports/shapes/shaders/conicalgradient_core.frag
new file mode 100644
index 0000000000..e18b80159a
--- /dev/null
+++ b/src/imports/shapes/shaders/conicalgradient_core.frag
@@ -0,0 +1,22 @@
+#version 150 core
+
+#define INVERSE_2PI 0.1591549430918953358
+
+uniform sampler2D gradTabTexture;
+uniform float opacity;
+
+uniform float angle;
+
+in vec2 coord;
+
+out vec4 fragColor;
+
+void main()
+{
+    float t;
+    if (abs(coord.y) == abs(coord.x))
+        t = (atan(-coord.y + 0.002, coord.x) + angle) * INVERSE_2PI;
+    else
+        t = (atan(-coord.y, coord.x) + angle) * INVERSE_2PI;
+    fragColor = texture(gradTabTexture, vec2(t - floor(t), 0.5)) * opacity;
+}
diff --git a/src/imports/shapes/shaders/conicalgradient_core.vert b/src/imports/shapes/shaders/conicalgradient_core.vert
new file mode 100644
index 0000000000..f94a56401b
--- /dev/null
+++ b/src/imports/shapes/shaders/conicalgradient_core.vert
@@ -0,0 +1,15 @@
+#version 150 core
+
+in vec4 vertexCoord;
+in vec4 vertexColor;
+
+uniform mat4 matrix;
+uniform vec2 translationPoint;
+
+out vec2 coord;
+
+void main()
+{
+    coord = vertexCoord.xy - translationPoint;
+    gl_Position = matrix * vertexCoord;
+}