1 files changed, 17 insertions, 0 deletions
diff --git a/src/effects/shaders/gaussianinnershadow.frag b/src/effects/shaders/gaussianinnershadow.frag
new file mode 100644
index 0000000..c9f57a6
--- /dev/null
+++ b/src/effects/shaders/gaussianinnershadow.frag
@@ -0,0 +1,17 @@
+uniform highp sampler2D original;
+uniform highp sampler2D shadow;
+uniform lowp float qt_Opacity;
+uniform highp float spread;
+uniform lowp vec4 color;
+varying highp vec2 qt_TexCoord0;
+
+highp float linearstep(highp float e0, highp float e1, highp float x) {
+    return clamp((x - e0) / (e1 - e0), 0.0, 1.0);
+}
+
+void main(void) {
+    lowp vec4 originalColor = texture2D(original, qt_TexCoord0);
+    lowp vec4 shadowColor = texture2D(shadow, qt_TexCoord0);
+    shadowColor.rgb = mix(originalColor.rgb, color.rgb * originalColor.a, linearstep(0.0, spread, shadowColor.a));
+    gl_FragColor = vec4(shadowColor.rgb, originalColor.a) * originalColor.a * qt_Opacity;
+}