1 files changed, 12 insertions, 0 deletions
diff --git a/src/effects/shaders/conicalgradient_nomask.frag b/src/effects/shaders/conicalgradient_nomask.frag
new file mode 100644
index 0000000..3f7d785
--- /dev/null
+++ b/src/effects/shaders/conicalgradient_nomask.frag
@@ -0,0 +1,12 @@
+varying mediump vec2 qt_TexCoord0;
+uniform lowp sampler2D gradientSource;
+uniform highp float qt_Opacity;
+uniform highp float startAngle;
+uniform highp vec2 center;
+
+void main() {
+    const highp float PI = 3.14159265;
+    const highp float PIx2inv = 0.1591549;
+    highp float a = (atan((center.y - qt_TexCoord0.t), (center.x - qt_TexCoord0.s)) + PI - startAngle) * PIx2inv;
+    gl_FragColor = texture2D(gradientSource, vec2(0.0, fract(a))) * qt_Opacity;
+}