1 files changed, 19 insertions, 0 deletions
diff --git a/src/effects/shaders/+glslcore/gaussianinnershadow.frag b/src/effects/shaders/+glslcore/gaussianinnershadow.frag
new file mode 100644
index 0000000..8b8c863
--- /dev/null
+++ b/src/effects/shaders/+glslcore/gaussianinnershadow.frag
@@ -0,0 +1,19 @@
+#version 150 core
+uniform sampler2D original;
+uniform sampler2D shadow;
+uniform float qt_Opacity;
+uniform float spread;
+uniform vec4 color;
+in vec2 qt_TexCoord0;
+out vec4 fragColor;
+
+float linearstep(float e0, float e1, float x) {
+    return clamp((x - e0) / (e1 - e0), 0.0, 1.0);
+}
+
+void main(void) {
+    vec4 originalColor = texture(original, qt_TexCoord0);
+    vec4 shadowColor = texture(shadow, qt_TexCoord0);
+    shadowColor.rgb = mix(originalColor.rgb, color.rgb * originalColor.a, linearstep(0.0, spread, shadowColor.a));
+    fragColor = vec4(shadowColor.rgb, originalColor.a) * originalColor.a * qt_Opacity;
+}