Much improved frame reflections. This is a little bit heavier but much better looking. The code should be ok, but maybe the parameters might use some fine tuning.

app/ApplicationSettings.qml

@@ -128,8 +128,9 @@ Item{
 
     // FRAMES /////////////////////////////////////////////////////////////////
 
-    property bool frame_reflections: true
-    property real frame_reflection_strength: ((frame_reflections && framelist.get(frames_index).reflections) ? 1.0 : 0.0) * 0.15
+    property bool _frameReflections: true
+    property bool reflectionsAllowed: framelist.get(frames_index).reflections
+    property bool frameReflections: _frameReflections && reflectionsAllowed
 
     property alias profiles_list: profileslist
     property int profiles_index: 0
@@ -147,7 +148,8 @@ Item{
             contrast: contrast,
             ambient_light: ambient_light,
             fontScalingIndexes: fontScalingIndexes,
-            fontIndexes: fontIndexes
+            fontIndexes: fontIndexes,
+            frameReflections: _frameReflections
         }
         return JSON.stringify(settings);
     }
@@ -210,6 +212,8 @@ Item{
 
         fontIndexes = settings.fontIndexes !== undefined ? settings.fontIndexes : fontIndexes
         fontScalingIndexes = settings.fontScalingIndexes !== undefined ? settings.fontScalingIndexes : fontScalingIndexes
+
+        _frameReflections = settings.frameReflections !== undefined ? settings.frameReflections : _frameReflections;
     }
 
     function loadProfileString(profileString){

app/SettingsGeneralTab.qml

@@ -99,8 +99,15 @@ Tab{
             anchors.right: parent.right
             GridLayout{
                 anchors.fill: parent
-                rows: 2
+                rows: 3
                 columns: 3
+                CheckBox{
+                    Layout.columnSpan: 3
+                    checked: shadersettings._frameReflections
+                    text: qsTr("Frame reflections")
+                    onCheckedChanged: shadersettings._frameReflections = checked
+                    enabled: shadersettings.reflectionsAllowed
+                }
                 CheckBox{
                     property int fps: checked ? slider.value : 0
                     onFpsChanged: shadersettings.fps = fps

app/SettingsTerminalTab.qml

@@ -122,12 +122,6 @@ Tab{
                     currentIndex: shadersettings.frames_index
                     onCurrentIndexChanged: shadersettings.frames_index = currentIndex
                 }
-                CheckBox{
-                    checked: shadersettings.frame_reflections
-                    text: qsTr("Reflections")
-                    onCheckedChanged: shadersettings.frame_reflections = checked
-                    enabled: framescombobox.model.get(framescombobox.currentIndex).reflections
-                }
             }
         }
     }

app/ShaderTerminal.qml

@@ -42,7 +42,7 @@ ShaderEffect {
     property real brightness_flickering: shadersettings.brightness_flickering
     property real horizontal_sincronization: shadersettings.horizontal_sincronization
 
-    property bool frame_reflection_strength: shadersettings.frame_reflection_strength
+    property bool frameReflections: shadersettings.frameReflections
 
     property real disp_top: frame.item.displacementTop * shadersettings.window_scaling
     property real disp_bottom: frame.item.displacementBottom * shadersettings.window_scaling
@@ -51,7 +51,7 @@ ShaderEffect {
 
     property real brightness: shadersettings.brightness * 1.5 + 0.5
 
-    property real time: timeManager.time !== 0 ? timeManager.time : 1
+    property real time: timeManager.time
     property variant randomFunctionSource: randfuncsource
 
     blending: false
@@ -138,7 +138,7 @@ ShaderEffect {
             :"
                 vec2 coords = qt_TexCoord0;") +
 
-            (frame_reflection_strength ? "
+            (frameReflections ? "
                 vec2 inside = step(0.0, coords) - step(1.0, coords);
                 coords = abs(mod(floor(coords), 2.0) - fract(coords)) * clamp(inside.x + inside.y, 0.0, 1.0);" : "") +
 

app/TimeManager.qml

@@ -21,7 +21,7 @@
 import QtQuick 2.2
 
 Timer{
-    property int time
+    property real time
 
     NumberAnimation on time {
         from: 0

app/frames/utils/FrameShader.qml

@@ -1,4 +1,5 @@
 import QtQuick 2.2
+import QtGraphicalEffects 1.0
 
 ShaderEffect{
     property variant source: framesource
@@ -7,49 +8,50 @@ ShaderEffect{
     property real ambient_light: shadersettings.ambient_light
     property color font_color: shadersettings.font_color
     property color background_color: shadersettings.background_color
-    property real time: timeManager.time
-    property variant randomFunctionSource: randfuncsource
-    property real brightness_flickering: shadersettings.brightness_flickering
     property real brightness: shadersettings.brightness * 1.5 + 0.5
 
-    property real frame_reflection_strength: shadersettings.frame_reflection_strength
+    property bool frameReflections: shadersettings.frameReflections
+    property variant lightSource: reflectionEffectSourceLoader.item
 
-    property color reflection_color: Qt.rgba((font_color.r*0.3 + background_color.r*0.7),
-                                             (font_color.g*0.3 + background_color.g*0.7),
-                                             (font_color.b*0.3 + background_color.b*0.7),
-                                             1.0)
+    Loader{
+        id: reflectionEffectLoader
+        width: parent.width * 0.33
+        height: parent.height * 0.33
+        active: frameReflections
+
+        sourceComponent: FastBlur{
+            id: frameReflectionEffect
+            radius: 128
+            source: terminal.kterminal
+            smooth: false
+        }
+    }
+
+    Loader{
+        id: reflectionEffectSourceLoader
+        active: frameReflections
+        sourceComponent: ShaderEffectSource{
+            id: frameReflectionSource
+            sourceItem: reflectionEffectLoader.item
+            hideSource: true
+            smooth: true
+        }
+    }
 
     blending: true
 
-    vertexShader: "
-                    uniform highp mat4 qt_Matrix;
-                    uniform highp float time;
-                    uniform sampler2D randomFunctionSource;
-
-                    attribute highp vec4 qt_Vertex;
-                    attribute highp vec2 qt_MultiTexCoord0;
-
-                    varying highp vec2 qt_TexCoord0;
-                    varying lowp float brightness;
-
-                    void main() {
-                        qt_TexCoord0 = qt_MultiTexCoord0;
-                        brightness = "+brightness.toFixed(1)+";" +
-                        (brightness_flickering !== 0 ?
-                            "brightness -= texture2D(randomFunctionSource, vec2(fract(time/(1024.0*2.0)), fract(time/(1024.0*1024.0*2.0)))).r * "+brightness_flickering.toFixed(1)+";"
-                        : "") + "
-
-                        gl_Position = qt_Matrix * qt_Vertex;
-                    }"
-
     fragmentShader: "
                             uniform sampler2D source;
                             uniform sampler2D normals;
                             uniform highp float screen_distorsion;
                             uniform highp float ambient_light;
-                            uniform highp float qt_Opacity;
+                            uniform highp float qt_Opacity;" +
 
-                            uniform vec4 reflection_color;
+                            (frameReflections ?
+                                "uniform sampler2D lightSource;" : "") + "
+
+                            uniform vec4 font_color;
+                            uniform vec4 background_color;
                             varying lowp float brightness;
 
                             varying highp vec2 qt_TexCoord0;
@@ -65,11 +67,23 @@ ShaderEffect{
                                 vec4 txt_color = texture2D(source, coords);
                                 vec4 txt_normal = texture2D(normals, coords);
                                 vec3 normal = normalize(txt_normal.rgb * 2.0 - 1.0);
-                                vec3 light_dir = normalize(vec3(0.5,0.5, 0.0) - vec3(qt_TexCoord0, 0.0));
-                                float diffuse = dot(normal, light_dir);
-                                float reflection = (diffuse * 0.6 + 0.4) * txt_normal.a;
-                                float reflection_alpha = (1.0 - diffuse*"+frame_reflection_strength.toFixed(1)+");
-                                vec4 dark_color = vec4(reflection_color.rgb * reflection * 0.4, txt_normal.a * reflection_alpha);
+                                vec3 light_direction = normalize(vec3(0.5, 0.5, 0.0) - vec3(qt_TexCoord0, 0.0));
+
+                                float dotProd = dot(normal, light_direction);" +
+
+                                (frameReflections ? "
+                                    float screenLight = texture2D(lightSource, coords).r;
+                                    float clampedDotProd = clamp(dotProd, 0.05, 1.0);
+                                    float diffuseReflection = clamp(screenLight * 1.5 * clampedDotProd, 0.0, 0.35);
+                                    float reflectionAlpha = mix(1.0, 0.90, dotProd);"
+                                : "
+                                    float diffuseReflection = 0.0;
+                                    float reflectionAlpha = 1.0;") + "
+
+                                vec3 back_color = background_color.rgb * (0.2 + 0.5 * dotProd);
+                                vec3 front_color = font_color.rgb * (0.05 + diffuseReflection);
+
+                                vec4 dark_color = vec4((back_color + front_color) * txt_normal.a, txt_normal.a * reflectionAlpha);
                                 gl_FragColor = mix(dark_color, txt_color, ambient_light);
                             }"