Add BOOST, 3D depth, and gradient-angle knobs

- BOOST: global display level multiplier (0.75 - 2.5, 1.0 default)
- 3D: pseudo-3D bevel/shading on bars, LEDs, peaks and curve (0 = flat)
- G-ANG: 3D gradient angle (-180 - 180, 0 = top-lit)
- Apply CURVING rounded corners to bars and peaks in BAR mode

README.md

@@ -34,6 +34,9 @@ and a configurable display.
 | GRID FADE   | 0 – 1            | Fades inner grid lines; outer border stays   |
 | CURVING     | 0 – 1            | LED corner radius (0 = square, 1 = rounded)  |
 | TILT        | -1 – 1           | Spectral tilt: + boosts highs / cuts lows, - does the reverse (0 = flat) |
+| BOOST       | 0.75 – 2.5       | Global display level multiplier (1.0 = unity)                            |
+| 3D          | 0 – 1            | Pseudo-3D bevel/shading on bars, LEDs, peaks and curve (0 = flat)        |
+| G-ANG       | -180 – 180       | Gradient angle for the 3D shading (0 = top-lit, +/-90 = side-lit)        |
 
 ## Building
 

Source/Analyser.cpp

@@ -105,7 +105,7 @@ void Analyser::computeFFT()
         double norm = (db + tiltDb - minDb) / (maxDb - minDb);
         norm = juce::jlimit (0.0, 1.0, norm);
 
-        targets[b] = static_cast<float> (norm);
+        targets[b] = static_cast<float> (norm * boost);
     }
 }
 

Source/Analyser.h

@@ -33,6 +33,8 @@ public:
     void setNumBands (int n) noexcept;
     void setTilt (double amount) noexcept { tilt = amount; }
     double getTilt() const noexcept { return tilt; }
+    void setBoost (double amount) noexcept { boost = amount; }
+    double getBoost() const noexcept { return boost; }
     double getGraceSeconds() const noexcept { return grace; }
     double getFalloffRate()  const noexcept { return falloffRate; }
 
@@ -79,4 +81,8 @@ private:
     // the centre of the log-frequency range.
     static constexpr double maxTiltDb = 18.0;
     double tilt = 0.0;
+
+    // Display boost: a global multiplier on the level the analyser shows
+    // (0.75 = quieter, 1.5 = louder, 1.0 = unity).
+    double boost = 1.0;
 };

Source/AnalyserComponent.h

@@ -38,6 +38,8 @@ public:
         const double gridZoomV = *params.getRawParameterValue ("gridzoom");
         const double gridFadeV = *params.getRawParameterValue ("gridfade");
         const double curveV    = *params.getRawParameterValue ("curving");
+        const double depthV    = *params.getRawParameterValue ("depth3d");
+        const double gradAngV  = *params.getRawParameterValue ("gradangle");
 
         analyser.setGraceSeconds (graceMs / 1000.0);
         analyser.setFalloffRate (0.1 + falloff * 5.0);
@@ -55,6 +57,8 @@ public:
         gridZoom     = static_cast<float> (gridZoomV);
         gridFade     = static_cast<float> (gridFadeV);
         curveAmount  = static_cast<float> (curveV);
+        depthAmount  = static_cast<float> (depthV);
+        gradAngle    = static_cast<float> (gradAngV);
 
         analyser.update (1.0 / 60.0);
         repaint();
@@ -159,9 +163,49 @@ public:
     }
 
 private:
+    // Build a top-lit 3D gradient across `bounds`. `angleDeg` rotates the
+    // gradient direction (0 = vertical/bright-top, +/-90 = horizontal), `bright`
+    // and `dark` scale the highlight/shadow strength (typically 0..1).
+    juce::ColourGradient make3DGradient (juce::Colour base, const juce::Rectangle<float>& bounds,
+                                         float angleDeg, float bright, float dark)
+    {
+        const float rad = juce::degreesToRadians (angleDeg);
+        const float dx = std::sin (rad);
+        const float dy = std::cos (rad);
+        const juce::Point<float> c = bounds.getCentre();
+        const float half = 0.5f * std::sqrt (bounds.getWidth() * bounds.getWidth()
+                                              + bounds.getHeight() * bounds.getHeight());
+        const juce::Point<float> p1 = c - juce::Point<float> (dx, dy) * half;
+        const juce::Point<float> p2 = c + juce::Point<float> (dx, dy) * half;
+        juce::ColourGradient grad (base.brighter (bright), p1.x, p1.y,
+                                   base.darker (dark),    p2.x, p2.y, false);
+        grad.addColour (0.5, base);
+        return grad;
+    }
+
+    // Fill a rounded rectangle with a top-lit 3D gradient. `depth` (0..1) blends
+    // between a flat solid fill and a fully raised/beveled look, angled by the
+    // G-ANG knob, so the two knobs control the 3D appearance.
+    void fill3D (juce::Graphics& g, juce::Colour base, const juce::Rectangle<float>& r,
+                 float radius, float depth)
+    {
+        if (depth <= 0.001f)
+        {
+            g.setColour (base);
+            g.fillRoundedRectangle (r, radius);
+            return;
+        }
+
+        g.setGradientFill (make3DGradient (base, r, gradAngle, depth, depth));
+        g.fillRoundedRectangle (r, radius);
+    }
+
     void drawBars (juce::Graphics& g, int n, const juce::Rectangle<float>& plot,
                    float gap, float bandWidth, float baseY)
     {
+        const float peakH = 3.0f;
+        const float peakRadius = curveAmount * juce::jmin (bandWidth, peakH) * 0.5f;
+
         for (int i = 0; i < n; ++i)
         {
             const float level = analyser.getLevel (i);
@@ -171,12 +215,12 @@ private:
             const float h = level * plot.getHeight();
             const float y = baseY - h;
 
-            g.setColour (lf.getTeal());
+            const float barRadius = curveAmount * juce::jmin (bandWidth, h, 8.0f) * 0.5f;
-            g.fillRect (x, y, bandWidth, h);
+
+            fill3D (g, lf.getTeal(), juce::Rectangle<float> (x, y, bandWidth, h), barRadius, depthAmount);
 
             const float peakY = baseY - peak * plot.getHeight();
-            g.setColour (lf.getPeak());
+            fill3D (g, lf.getPeak(), juce::Rectangle<float> (x, peakY - 2.0f, bandWidth, peakH), peakRadius, depthAmount);
-            g.fillRect (x, peakY - 2.0f, bandWidth, 3.0f);
         }
     }
 
@@ -237,14 +281,23 @@ private:
         wave.lineTo (plot.getX(), baseY);
         wave.closeSubPath();
 
-        // Brighter at the top, darker toward the bottom.
+        // 3D: a top-lit gradient (bright edge fading to a darker underside),
-        juce::ColourGradient grad (lf.getTeal().brighter (0.35f), 0.0f, plot.getY(),
+        // angled by the G-ANG knob. `depthAmount` blends from a flat fill (0)
-                                   lf.getTeal().darker (0.85f), 0.0f, plot.getBottom(), false);
+        // to a fully raised look (1).
-        g.setGradientFill (grad);
+        const juce::Colour base = lf.getTeal();
-        g.fillPath (wave);
+        if (depthAmount <= 0.001f)
+        {
+            g.setColour (base);
+            g.fillPath (wave);
+        }
+        else
+        {
+            g.setGradientFill (make3DGradient (base, plot, gradAngle, 0.7f * depthAmount, depthAmount));
+            g.fillPath (wave);
+        }
 
-        // Bright outline tracing the waveform.
+        // Bright top-edge outline (the "lit" highlight), stronger with depth.
-        g.setColour (lf.getTeal().brighter (0.5f));
+        g.setColour (base.brighter (0.3f + 0.5f * depthAmount));
         g.strokePath (wave, juce::PathStrokeType (1.5f));
 
         // Smooth peak-hold wave: per-band peaks, smoothed with the same
@@ -287,7 +340,16 @@ private:
         }
         peakWave.quadraticTo (ppts[n - 1], ppts[n - 1]);
         peakWave.lineTo (plot.getRight(), baseY - peaks[n - 1] * plot.getHeight());
-        g.setColour (lf.getPeak());
+        // Peak wave gets the same top-lit 3D shading.
+        const juce::Colour pbase = lf.getPeak();
+        if (depthAmount <= 0.001f)
+        {
+            g.setColour (pbase);
+        }
+        else
+        {
+            g.setGradientFill (make3DGradient (pbase, plot, gradAngle, 0.7f * depthAmount, depthAmount));
+        }
         g.strokePath (peakWave, juce::PathStrokeType (2.0f));
     }
 
@@ -319,16 +381,15 @@ private:
                 if (b < litCount)
                 {
                     const float frac = (b + 0.5f) / static_cast<float> (leds);
-                    g.setColour (lf.getTeal().withMultipliedBrightness (0.35f + 0.65f * frac));
+                    const juce::Colour base = lf.getTeal().withMultipliedBrightness (0.35f + 0.65f * frac);
-                    g.fillRoundedRectangle (juce::Rectangle<float> (x, blockTop, bandWidth, blockLen), radius);
+                    fill3D (g, base, juce::Rectangle<float> (x, blockTop, bandWidth, blockLen), radius, depthAmount);
                 }
 
                 // Peak honours the same discrete blocks: draw the peak block in the
                 // peak colour (a single, fully-filled block).
                 if (b == peakBlock - 1)
                 {
-                    g.setColour (lf.getPeak());
+                    fill3D (g, lf.getPeak(), juce::Rectangle<float> (x, blockTop, bandWidth, blockLen), radius, depthAmount);
-                    g.fillRoundedRectangle (juce::Rectangle<float> (x, blockTop, bandWidth, blockLen), radius);
                 }
             }
         }
@@ -345,6 +406,8 @@ private:
     float gridZoom = 1.0f;
     float gridFade = 0.0f;
     float curveAmount = 0.0f;
+    float depthAmount = 0.0f;
+    float gradAngle = 0.0f;
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AnalyserComponent)
 };

Source/PluginEditor.cpp

@@ -41,6 +41,9 @@ BeamgridAudioProcessorEditor::BeamgridAudioProcessorEditor (BeamgridAudioProcess
     setupKnob (gridfadeSlider, "");
     setupKnob (curvingSlider, "");
     setupKnob (tiltSlider, "");
+    setupKnob (boostSlider, "");
+    setupKnob (depth3dSlider, "");
+    setupKnob (gradangleSlider, "");
     barsSlider.setNumDecimalPlacesToDisplay (0);
     modeSlider.setNumDecimalPlacesToDisplay (0);
     ledsSlider.setNumDecimalPlacesToDisplay (0);
@@ -110,6 +113,21 @@ BeamgridAudioProcessorEditor::BeamgridAudioProcessorEditor (BeamgridAudioProcess
     tiltLabel.setColour (juce::Label::textColourId, juce::Colours::lightgrey);
     addAndMakeVisible (tiltLabel);
 
+    boostLabel.setText ("BOOST", juce::dontSendNotification);
+    boostLabel.setJustificationType (juce::Justification::centred);
+    boostLabel.setColour (juce::Label::textColourId, juce::Colours::lightgrey);
+    addAndMakeVisible (boostLabel);
+
+    depth3dLabel.setText ("3D", juce::dontSendNotification);
+    depth3dLabel.setJustificationType (juce::Justification::centred);
+    depth3dLabel.setColour (juce::Label::textColourId, juce::Colours::lightgrey);
+    addAndMakeVisible (depth3dLabel);
+
+    gradangleLabel.setText ("G-ANG", juce::dontSendNotification);
+    gradangleLabel.setJustificationType (juce::Justification::centred);
+    gradangleLabel.setColour (juce::Label::textColourId, juce::Colours::lightgrey);
+    addAndMakeVisible (gradangleLabel);
+
     scaleBox.addItemList (juce::StringArray ("75%", "100%", "150%", "200%", "250%", "300%"), 1);
     scaleBox.setSelectedItemIndex (1); // 100%
     scaleBox.setColour (juce::ComboBox::backgroundColourId, juce::Colours::black.brighter (0.15f));
@@ -167,6 +185,12 @@ BeamgridAudioProcessorEditor::BeamgridAudioProcessorEditor (BeamgridAudioProcess
         processorRef.getParametersState(), "curving", curvingSlider);
     tiltAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
         processorRef.getParametersState(), "tilt", tiltSlider);
+    boostAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
+        processorRef.getParametersState(), "boost", boostSlider);
+    depth3dAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
+        processorRef.getParametersState(), "depth3d", depth3dSlider);
+    gradangleAttachment = std::make_unique<juce::AudioProcessorValueTreeState::SliderAttachment>(
+        processorRef.getParametersState(), "gradangle", gradangleSlider);
 
     // Set these AFTER the attachments: SliderAttachment installs its own
     // textFromValueFunction, so assigning afterwards makes ours take effect.
@@ -259,7 +283,7 @@ void BeamgridAudioProcessorEditor::resized()
 
     const int margin = 24;
     const int gap = 14;
-    const int count = 13;
+    const int count = 16;
     const int titleW = 180;
 
     // Available width for the knob row (leave room on the right for the title).
@@ -289,6 +313,9 @@ void BeamgridAudioProcessorEditor::resized()
         { gridfadeSlider,    gridfadeLabel },
         { curvingSlider,     curvingLabel },
         { tiltSlider,        tiltLabel },
+        { boostSlider,       boostLabel },
+        { depth3dSlider,     depth3dLabel },
+        { gradangleSlider,   gradangleLabel },
     };
 
     const juce::Font labelFont (juce::FontOptions (11.0f));

Source/PluginEditor.h

@@ -35,6 +35,9 @@ private:
     juce::Slider gridfadeSlider;
     juce::Slider curvingSlider;
     juce::Slider tiltSlider;
+    juce::Slider boostSlider;
+    juce::Slider depth3dSlider;
+    juce::Slider gradangleSlider;
 
     juce::Label graceLabel;
     juce::Label falloffLabel;
@@ -49,6 +52,9 @@ private:
     juce::Label gridfadeLabel;
     juce::Label curvingLabel;
     juce::Label tiltLabel;
+    juce::Label boostLabel;
+    juce::Label depth3dLabel;
+    juce::Label gradangleLabel;
     juce::Label titleLabel;
     juce::Label statusLabel;
 
@@ -67,6 +73,9 @@ private:
     std::unique_ptr<juce::AudioProcessorValueTreeState::SliderAttachment> gridfadeAttachment;
     std::unique_ptr<juce::AudioProcessorValueTreeState::SliderAttachment> curvingAttachment;
     std::unique_ptr<juce::AudioProcessorValueTreeState::SliderAttachment> tiltAttachment;
+    std::unique_ptr<juce::AudioProcessorValueTreeState::SliderAttachment> boostAttachment;
+    std::unique_ptr<juce::AudioProcessorValueTreeState::SliderAttachment> depth3dAttachment;
+    std::unique_ptr<juce::AudioProcessorValueTreeState::SliderAttachment> gradangleAttachment;
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BeamgridAudioProcessorEditor)
 };

Source/PluginProcessor.cpp

@@ -71,6 +71,21 @@ BeamgridAudioProcessor::createParameterLayout()
         juce::NormalisableRange<float> (-1.0f, 1.0f, 0.001f), 0.0f,
         juce::AudioParameterFloatAttributes().withLabel ("")));
 
+    params.push_back (std::make_unique<juce::AudioParameterFloat>(
+        "boost", "Boost",
+        juce::NormalisableRange<float> (0.75f, 2.5f, 0.001f), 1.0f,
+        juce::AudioParameterFloatAttributes().withLabel ("")));
+
+    params.push_back (std::make_unique<juce::AudioParameterFloat>(
+        "depth3d", "3D",
+        juce::NormalisableRange<float> (0.0f, 1.0f, 0.001f), 0.0f,
+        juce::AudioParameterFloatAttributes().withLabel ("")));
+
+    params.push_back (std::make_unique<juce::AudioParameterFloat>(
+        "gradangle", "Gradient Angle",
+        juce::NormalisableRange<float> (-180.0f, 180.0f, 0.5f), 0.0f,
+        juce::AudioParameterFloatAttributes().withLabel ("")));
+
     juce::NormalisableRange<float> barsRange (8.0f, 128.0f,
         [] (float start, float end, float v) { return start + v * (end - start); },        // convertFrom0To1
         [] (float start, float end, float v) { return (v - start) / (end - start); },      // convertTo0To1
@@ -150,6 +165,7 @@ void BeamgridAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer,
     juce::ScopedNoDenormals noDenormals;
 
     analyser.setTilt (*params.getRawParameterValue ("tilt"));
+    analyser.setBoost (*params.getRawParameterValue ("boost"));
 
     // Analyse the first channel; pass the audio through unchanged.
     if (buffer.getNumChannels() > 0)