renderer/deco: add glow decoration (#13862)

20 files changed, 487 insertions, 13 deletions

diff --git a/src/config/legacy/ConfigManager.cpp b/src/config/legacy/ConfigManager.cpp
index 31da257c..70a15754 100644
--- a/src/config/legacy/ConfigManager.cpp
+++ b/src/config/legacy/ConfigManager.cpp
@@ -626,6 +626,11 @@ CConfigManager::CConfigManager() {
     registerConfigVar("decoration:shadow:sharp", Hyprlang::INT{0});
     registerConfigVar("decoration:shadow:color", Hyprlang::INT{0xee1a1a1a});
     registerConfigVar("decoration:shadow:color_inactive", Hyprlang::INT{-1});
+    registerConfigVar("decoration:glow:enabled", Hyprlang::INT{0});
+    registerConfigVar("decoration:glow:range", Hyprlang::INT{10});
+    registerConfigVar("decoration:glow:render_power", Hyprlang::INT{3});
+    registerConfigVar("decoration:glow:color", Hyprlang::INT{0xee33ccff});
+    registerConfigVar("decoration:glow:color_inactive", Hyprlang::INT{0x0033ccff});
     registerConfigVar("decoration:dim_inactive", Hyprlang::INT{0});
     registerConfigVar("decoration:dim_modal", Hyprlang::INT{1});
     registerConfigVar("decoration:dim_strength", {0.5f});
diff --git a/src/config/shared/animation/AnimationTree.cpp b/src/config/shared/animation/AnimationTree.cpp
index 39f7620a..bd763a70 100644
--- a/src/config/shared/animation/AnimationTree.cpp
+++ b/src/config/shared/animation/AnimationTree.cpp
@@ -39,6 +39,7 @@ void CAnimationTreeController::reset() {
     m_animationTree.createNode("fadeOut", "fade");
     m_animationTree.createNode("fadeSwitch", "fade");
     m_animationTree.createNode("fadeShadow", "fade");
+    m_animationTree.createNode("fadeGlow", "fade");
     m_animationTree.createNode("fadeDim", "fade");
     m_animationTree.createNode("fadeLayers", "fade");
     m_animationTree.createNode("fadeLayersIn", "fadeLayers");
diff --git a/src/config/supplementary/ConfigDescriptions.hpp b/src/config/supplementary/ConfigDescriptions.hpp
index 90ac0031..6a287d43 100644
--- a/src/config/supplementary/ConfigDescriptions.hpp
+++ b/src/config/supplementary/ConfigDescriptions.hpp
@@ -310,6 +310,36 @@ namespace Config::Supplementary {
             .data        = SConfigOptionDescription::SFloatData{1, 0, 1},
         },
         SConfigOptionDescription{
+            .value       = "decoration:glow:enabled",
+            .description = "enable inner glow on windows",
+            .type        = CONFIG_OPTION_BOOL,
+            .data        = SConfigOptionDescription::SBoolData{false},
+        },
+        SConfigOptionDescription{
+            .value       = "decoration:glow:range",
+            .description = "glow range (size) in layout px",
+            .type        = CONFIG_OPTION_INT,
+            .data        = SConfigOptionDescription::SRangeData{10, 0, 100},
+        },
+        SConfigOptionDescription{
+            .value       = "decoration:glow:render_power",
+            .description = "in what power to render the falloff (more power, the faster the falloff) [1 - 4]",
+            .type        = CONFIG_OPTION_INT,
+            .data        = SConfigOptionDescription::SRangeData{3, 1, 4},
+        },
+        SConfigOptionDescription{
+            .value       = "decoration:glow:color",
+            .description = "glow's color. Alpha dictates glow's opacity.",
+            .type        = CONFIG_OPTION_COLOR,
+            .data        = SConfigOptionDescription::SColorData{0xee33ccff},
+        },
+        SConfigOptionDescription{
+            .value       = "decoration:glow:color_inactive",
+            .description = "inactive glow color. (if not set, will fall back to decoration:glow:color)",
+            .type        = CONFIG_OPTION_COLOR,
+            .data        = SConfigOptionDescription::SColorData{0x0033ccff},
+        },
+        SConfigOptionDescription{
             .value       = "decoration:dim_modal",
             .description = "enables dimming of parents of modal windows",
             .type        = CONFIG_OPTION_BOOL,
diff --git a/src/desktop/view/Window.cpp b/src/desktop/view/Window.cpp
index edab2135..9656bf28 100644
--- a/src/desktop/view/Window.cpp
+++ b/src/desktop/view/Window.cpp
@@ -21,6 +21,7 @@
 #include "../history/WindowHistoryTracker.hpp"
 #include "../../Compositor.hpp"
 #include "../../render/decorations/CHyprDropShadowDecoration.hpp"
+#include "../../render/decorations/CHyprInnerGlowDecoration.hpp"
 #include "../../render/decorations/CHyprGroupBarDecoration.hpp"
 #include "../../render/decorations/CHyprBorderDecoration.hpp"
 #include "../../config/ConfigValue.hpp"
@@ -85,6 +86,7 @@ PHLWINDOW CWindow::create(SP<CXWaylandSurface> surface) {
     g_pAnimationManager->createAnimation(1.f, pWindow->m_alpha, Config::animationTree()->getAnimationPropertyConfig("fadeIn"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(1.f, pWindow->m_activeInactiveAlpha, Config::animationTree()->getAnimationPropertyConfig("fadeSwitch"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(CHyprColor(), pWindow->m_realShadowColor, Config::animationTree()->getAnimationPropertyConfig("fadeShadow"), pWindow, AVARDAMAGE_SHADOW);
+    g_pAnimationManager->createAnimation(CHyprColor(), pWindow->m_realGlowColor, Config::animationTree()->getAnimationPropertyConfig("fadeGlow"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(0.f, pWindow->m_dimPercent, Config::animationTree()->getAnimationPropertyConfig("fadeDim"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(0.f, pWindow->m_movingToWorkspaceAlpha, Config::animationTree()->getAnimationPropertyConfig("fadeOut"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(0.f, pWindow->m_movingFromWorkspaceAlpha, Config::animationTree()->getAnimationPropertyConfig("fadeIn"), pWindow, AVARDAMAGE_ENTIRE);
@@ -92,6 +94,7 @@ PHLWINDOW CWindow::create(SP<CXWaylandSurface> surface) {
 
     pWindow->addWindowDeco(makeUnique<CHyprDropShadowDecoration>(pWindow));
     pWindow->addWindowDeco(makeUnique<CHyprBorderDecoration>(pWindow));
+    pWindow->addWindowDeco(makeUnique<CHyprInnerGlowDecoration>(pWindow));
 
     pWindow->m_target = Layout::CWindowTarget::create(pWindow);
 
@@ -113,6 +116,7 @@ PHLWINDOW CWindow::create(SP<CXDGSurfaceResource> resource) {
     g_pAnimationManager->createAnimation(1.f, pWindow->m_alpha, Config::animationTree()->getAnimationPropertyConfig("fadeIn"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(1.f, pWindow->m_activeInactiveAlpha, Config::animationTree()->getAnimationPropertyConfig("fadeSwitch"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(CHyprColor(), pWindow->m_realShadowColor, Config::animationTree()->getAnimationPropertyConfig("fadeShadow"), pWindow, AVARDAMAGE_SHADOW);
+    g_pAnimationManager->createAnimation(CHyprColor(), pWindow->m_realGlowColor, Config::animationTree()->getAnimationPropertyConfig("fadeGlow"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(0.f, pWindow->m_dimPercent, Config::animationTree()->getAnimationPropertyConfig("fadeDim"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(0.f, pWindow->m_movingToWorkspaceAlpha, Config::animationTree()->getAnimationPropertyConfig("fadeOut"), pWindow, AVARDAMAGE_ENTIRE);
     g_pAnimationManager->createAnimation(0.f, pWindow->m_movingFromWorkspaceAlpha, Config::animationTree()->getAnimationPropertyConfig("fadeIn"), pWindow, AVARDAMAGE_ENTIRE);
@@ -120,6 +124,7 @@ PHLWINDOW CWindow::create(SP<CXDGSurfaceResource> resource) {
 
     pWindow->addWindowDeco(makeUnique<CHyprDropShadowDecoration>(pWindow));
     pWindow->addWindowDeco(makeUnique<CHyprBorderDecoration>(pWindow));
+    pWindow->addWindowDeco(makeUnique<CHyprInnerGlowDecoration>(pWindow));
 
     pWindow->m_target = Layout::CWindowTarget::create(pWindow);
 
@@ -622,6 +627,7 @@ void CWindow::onMap() {
     m_activeInactiveAlpha->resetAllCallbacks();
     m_alpha->resetAllCallbacks();
     m_realShadowColor->resetAllCallbacks();
+    m_realGlowColor->resetAllCallbacks();
     m_dimPercent->resetAllCallbacks();
     m_movingToWorkspaceAlpha->resetAllCallbacks();
     m_movingFromWorkspaceAlpha->resetAllCallbacks();
@@ -1528,6 +1534,9 @@ void CWindow::updateDecorationValues() {
     static auto PFULLSCREENALPHA        = CConfigValue<Hyprlang::FLOAT>("decoration:fullscreen_opacity");
     static auto PSHADOWCOL              = CConfigValue<Hyprlang::INT>("decoration:shadow:color");
     static auto PSHADOWCOLINACTIVE      = CConfigValue<Hyprlang::INT>("decoration:shadow:color_inactive");
+    static auto PGLOW                   = CConfigValue<Hyprlang::INT>("decoration:glow:enabled");
+    static auto PGLOWCOL                = CConfigValue<Hyprlang::INT>("decoration:glow:color");
+    static auto PGLOWCOLINACTIVE        = CConfigValue<Hyprlang::INT>("decoration:glow:color_inactive");
     static auto PDIMSTRENGTH            = CConfigValue<Hyprlang::FLOAT>("decoration:dim_strength");
     static auto PDIMENABLED             = CConfigValue<Hyprlang::INT>("decoration:dim_inactive");
     static auto PDIMMODAL               = CConfigValue<Hyprlang::INT>("decoration:dim_modal");
@@ -1557,9 +1566,15 @@ void CWindow::updateDecorationValues() {
     if (m_self == Desktop::focusState()->window()) {
         const auto* const ACTIVECOLOR = !m_group ? (!(m_groupRules & GROUP_DENY) ? ACTIVECOL : NOGROUPACTIVECOL) : (GROUPLOCKED ? GROUPACTIVELOCKEDCOL : GROUPACTIVECOL);
         setBorderColor(m_ruleApplicator->activeBorderColor().valueOr(*ACTIVECOLOR));
+
+        if (*PGLOW)
+            *m_realGlowColor = *PGLOWCOL;
     } else {
         const auto* const INACTIVECOLOR = !m_group ? (!(m_groupRules & GROUP_DENY) ? INACTIVECOL : NOGROUPINACTIVECOL) : (GROUPLOCKED ? GROUPINACTIVELOCKEDCOL : GROUPINACTIVECOL);
         setBorderColor(m_ruleApplicator->inactiveBorderColor().valueOr(*INACTIVECOLOR));
+
+        if (*PGLOW)
+            *m_realGlowColor = *PGLOWCOLINACTIVE;
     }
 
     // opacity
diff --git a/src/desktop/view/Window.hpp b/src/desktop/view/Window.hpp
index 23dd0117..57dc2697 100644
--- a/src/desktop/view/Window.hpp
+++ b/src/desktop/view/Window.hpp
@@ -227,6 +227,9 @@ namespace Desktop::View {
         // animated shadow color
         PHLANIMVAR<CHyprColor> m_realShadowColor;
 
+        // animated glow color
+        PHLANIMVAR<CHyprColor> m_realGlowColor;
+
         // animated tint
         PHLANIMVAR<float> m_dimPercent;
 
diff --git a/src/render/GLRenderer.cpp b/src/render/GLRenderer.cpp
index 48825a4b..afef2ba0 100644
--- a/src/render/GLRenderer.cpp
+++ b/src/render/GLRenderer.cpp
@@ -1,4 +1,5 @@
 #include "GLRenderer.hpp"
+#include "decorations/CHyprInnerGlowDecoration.hpp"
 #include <aquamarine/output/Output.hpp>
 #include "../config/ConfigValue.hpp"
 #include "../managers/CursorManager.hpp"
@@ -354,6 +355,11 @@ void CHyprGLRenderer::draw(CShadowPassElement* element, const CRegion& damage) {
     m_data.deco->render(g_pHyprRenderer->m_renderData.pMonitor.lock(), m_data.a);
 };
 
+void CHyprGLRenderer::draw(CInnerGlowPassElement* element, const CRegion& damage) {
+    const auto m_data = element->m_data;
+    m_data.deco->render(g_pHyprRenderer->m_renderData.pMonitor.lock(), m_data.a);
+};
+
 void CHyprGLRenderer::draw(CTexPassElement* element, const CRegion& damage) {
     const auto m_data = element->m_data;
 
diff --git a/src/render/GLRenderer.hpp b/src/render/GLRenderer.hpp
index 1446e9b2..6f511fc3 100644
--- a/src/render/GLRenderer.hpp
+++ b/src/render/GLRenderer.hpp
@@ -41,6 +41,7 @@ class CHyprGLRenderer : public IHyprRenderer {
     void              draw(CPreBlurElement* element, const CRegion& damage) override;
     void              draw(CRectPassElement* element, const CRegion& damage) override;
     void              draw(CShadowPassElement* element, const CRegion& damage) override;
+    void              draw(CInnerGlowPassElement* element, const CRegion& damage) override;
     void              draw(CTexPassElement* element, const CRegion& damage) override;
     void              draw(CTextureMatteElement* element, const CRegion& damage) override;
 
diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index 16e892ca..9aaa99d5 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -853,14 +853,14 @@ void CHyprOpenGLImpl::end() {
 }
 
 static const std::vector<std::string> SHADER_INCLUDES = {
-    "defines.h",   "constants.h", "cm_helpers.glsl",  "rounding.glsl", "CM.glsl",    "tonemap.glsl",    "gain.glsl",
-    "border.glsl", "shadow.glsl", "blurprepare.glsl", "blur1.glsl",    "blur2.glsl", "blurFinish.glsl",
+    "defines.h",   "constants.h", "cm_helpers.glsl", "rounding.glsl",    "CM.glsl",    "tonemap.glsl", "gain.glsl",
+    "border.glsl", "shadow.glsl", "inner_glow.glsl", "blurprepare.glsl", "blur1.glsl", "blur2.glsl",   "blurFinish.glsl",
 };
 
 // order matters, see ePreparedFragmentShader
 const std::array<std::string, SH_FRAG_LAST> FRAG_SHADERS = {
-    "quad.frag",        "passthru.frag",   "rgbamatte.frag", "ext.frag",     "blur1.frag",  "blur2.frag",
-    "blurprepare.frag", "blurfinish.frag", "shadow.frag",    "surface.frag", "border.frag", "glitch.frag",
+    "quad.frag",       "passthru.frag", "rgbamatte.frag",  "ext.frag",     "blur1.frag",  "blur2.frag",  "blurprepare.frag",
+    "blurfinish.frag", "shadow.frag",   "inner_glow.frag", "surface.frag", "border.frag", "glitch.frag",
 };
 
 bool CHyprOpenGLImpl::initShaders(const std::string& path) {
@@ -2283,6 +2283,69 @@ void CHyprOpenGLImpl::renderRoundedShadow(const CBox& box, int round, float roun
     glBindVertexArray(0);
 }
 
+void CHyprOpenGLImpl::renderInnerGlow(const CBox& box, int round, float roundingPower, int range, const CHyprColor& color, int glowPower, float a) {
+    auto& m_renderData = g_pHyprRenderer->m_renderData;
+    RASSERT(m_renderData.pMonitor, "Tried to render inner glow without begin()!");
+    RASSERT((box.width > 0 && box.height > 0), "Tried to render inner glow with width/height < 0!");
+
+    if (g_pHyprRenderer->m_renderData.damage.empty())
+        return;
+
+    TRACY_GPU_ZONE("RenderInnerGlow");
+
+    CBox newBox = box;
+    g_pHyprRenderer->m_renderData.renderModif.applyToBox(newBox);
+
+    const auto  col = color;
+
+    const auto& glMatrix = g_pHyprRenderer->projectBoxToTarget(newBox);
+
+    blend(true);
+
+    const bool IS_ICC = g_pHyprRenderer->workBufferImageDescription()->value().icc.present;
+    const bool skipCM = !m_cmSupported || g_pHyprRenderer->workBufferImageDescription()->id() == DEFAULT_IMAGE_DESCRIPTION->id();
+    auto       shader = useShader(getShaderVariant(SH_FRAG_INNER_GLOW, skipCM ? 0 : SH_FEAT_CM | (IS_ICC ? SH_FEAT_ICC : SH_FEAT_TONEMAP | SH_FEAT_SDR_MOD)));
+    if (!skipCM)
+        passCMUniforms(shader, DEFAULT_IMAGE_DESCRIPTION);
+
+    shader->setUniformMatrix3fv(SHADER_PROJ, 1, GL_TRUE, glMatrix.getMatrix());
+    shader->setUniformFloat4(SHADER_COLOR, col.r, col.g, col.b, col.a * a);
+
+    const auto TOPLEFT     = Vector2D(round, round);
+    const auto BOTTOMRIGHT = Vector2D(newBox.width - round, newBox.height - round);
+    const auto FULLSIZE    = Vector2D(newBox.width, newBox.height);
+
+    shader->setUniformFloat2(SHADER_TOP_LEFT, sc<float>(TOPLEFT.x), sc<float>(TOPLEFT.y));
+    shader->setUniformFloat2(SHADER_BOTTOM_RIGHT, sc<float>(BOTTOMRIGHT.x), sc<float>(BOTTOMRIGHT.y));
+    shader->setUniformFloat2(SHADER_FULL_SIZE, sc<float>(FULLSIZE.x), sc<float>(FULLSIZE.y));
+    shader->setUniformFloat(SHADER_RADIUS, round);
+    shader->setUniformFloat(SHADER_ROUNDING_POWER, roundingPower);
+    shader->setUniformFloat(SHADER_RANGE, range);
+    shader->setUniformFloat(SHADER_SHADOW_POWER, glowPower);
+
+    glBindVertexArray(shader->getUniformLocation(SHADER_SHADER_VAO));
+
+    if (g_pHyprRenderer->m_renderData.clipBox.width != 0 && g_pHyprRenderer->m_renderData.clipBox.height != 0) {
+        CRegion damageClip{g_pHyprRenderer->m_renderData.clipBox.x, g_pHyprRenderer->m_renderData.clipBox.y, g_pHyprRenderer->m_renderData.clipBox.width,
+                           g_pHyprRenderer->m_renderData.clipBox.height};
+        damageClip.intersect(g_pHyprRenderer->m_renderData.damage);
+
+        if (!damageClip.empty()) {
+            damageClip.forEachRect([this](const auto& RECT) {
+                scissor(&RECT, g_pHyprRenderer->m_renderData.transformDamage);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            });
+        }
+    } else {
+        g_pHyprRenderer->m_renderData.damage.forEachRect([this](const auto& RECT) {
+            scissor(&RECT, g_pHyprRenderer->m_renderData.transformDamage);
+            glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+        });
+    }
+
+    glBindVertexArray(0);
+}
+
 void CHyprOpenGLImpl::saveBufferForMirror(const CBox& box) {
     auto& m_renderData = g_pHyprRenderer->m_renderData;
     if (!g_pHyprRenderer->m_renderData.pMonitor->m_monitorMirrorFB->isAllocated())
diff --git a/src/render/OpenGL.hpp b/src/render/OpenGL.hpp
index e92d4822..bbca01c0 100644
--- a/src/render/OpenGL.hpp
+++ b/src/render/OpenGL.hpp
@@ -228,6 +228,7 @@ class CHyprOpenGLImpl {
     void                                      renderRect(const CBox&, const CHyprColor&, SRectRenderData data);
     void                                      renderTexture(SP<ITexture>, const CBox&, STextureRenderData data);
     void                                      renderRoundedShadow(const CBox&, int round, float roundingPower, int range, const CHyprColor& color, float a = 1.0);
+    void                                      renderInnerGlow(const CBox&, int round, float roundingPower, int range, const CHyprColor& color, int glowPower, float a = 1.0);
     void                                      renderBorder(const CBox&, const Config::CGradientValueData&, SBorderRenderData data);
     void                                      renderBorder(const CBox&, const Config::CGradientValueData&, const Config::CGradientValueData&, float lerp, SBorderRenderData data);
     void                                      renderTextureMatte(SP<ITexture> tex, const CBox& pBox, SP<IFramebuffer> matte);
diff --git a/src/render/Renderer.cpp b/src/render/Renderer.cpp
index 66d48247..0c184238 100644
--- a/src/render/Renderer.cpp
+++ b/src/render/Renderer.cpp
@@ -1105,6 +1105,7 @@ void IHyprRenderer::draw(WP<IPassElement> element, const CRegion& damage) {
         case EK_RECT: drawRect(dc<CRectPassElement*>(element.get()), damage); break;
         case EK_HINTS: drawHints(dc<CRendererHintsPassElement*>(element.get()), damage); break;
         case EK_SHADOW: draw(dc<CShadowPassElement*>(element.get()), damage); break;
+        case EK_INNER_GLOW: draw(dc<CInnerGlowPassElement*>(element.get()), damage); break;
         case EK_SURFACE: preDrawSurface(dc<CSurfacePassElement*>(element.get()), damage); break;
         case EK_TEXTURE: drawTex(dc<CTexPassElement*>(element.get()), damage); break;
         case EK_TEXTURE_MATTE: drawTexMatte(dc<CTextureMatteElement*>(element.get()), damage); break;
diff --git a/src/render/Renderer.hpp b/src/render/Renderer.hpp
index 4b65141a..d8056d82 100644
--- a/src/render/Renderer.hpp
+++ b/src/render/Renderer.hpp
@@ -23,6 +23,7 @@
 #include "pass/RectPassElement.hpp"
 #include "pass/RendererHintsPassElement.hpp"
 #include "pass/ShadowPassElement.hpp"
+#include "pass/InnerGlowPassElement.hpp"
 #include "pass/SurfacePassElement.hpp"
 #include "pass/TexPassElement.hpp"
 #include "pass/TextureMatteElement.hpp"
@@ -288,14 +289,15 @@ class IHyprRenderer {
     };
 
     SP<ITexture>         getBackground(PHLMONITOR pMonitor);
-    virtual void         draw(CBorderPassElement* element, const CRegion& damage)   = 0;
-    virtual void         draw(CClearPassElement* element, const CRegion& damage)    = 0;
-    virtual void         draw(CFramebufferElement* element, const CRegion& damage)  = 0;
-    virtual void         draw(CPreBlurElement* element, const CRegion& damage)      = 0;
-    virtual void         draw(CRectPassElement* element, const CRegion& damage)     = 0;
-    virtual void         draw(CShadowPassElement* element, const CRegion& damage)   = 0;
-    virtual void         draw(CTexPassElement* element, const CRegion& damage)      = 0;
-    virtual void         draw(CTextureMatteElement* element, const CRegion& damage) = 0;
+    virtual void         draw(CBorderPassElement* element, const CRegion& damage)    = 0;
+    virtual void         draw(CClearPassElement* element, const CRegion& damage)     = 0;
+    virtual void         draw(CFramebufferElement* element, const CRegion& damage)   = 0;
+    virtual void         draw(CPreBlurElement* element, const CRegion& damage)       = 0;
+    virtual void         draw(CRectPassElement* element, const CRegion& damage)      = 0;
+    virtual void         draw(CShadowPassElement* element, const CRegion& damage)    = 0;
+    virtual void         draw(CInnerGlowPassElement* element, const CRegion& damage) = 0;
+    virtual void         draw(CTexPassElement* element, const CRegion& damage)       = 0;
+    virtual void         draw(CTextureMatteElement* element, const CRegion& damage)  = 0;
     virtual SP<ITexture> getBlurTexture(PHLMONITORREF pMonitor);
     SP<ITexture>         m_lockDeadTexture;
     SP<ITexture>         m_lockDead2Texture;
diff --git a/src/render/ShaderLoader.hpp b/src/render/ShaderLoader.hpp
index e522e9fa..9f3f787d 100644
--- a/src/render/ShaderLoader.hpp
+++ b/src/render/ShaderLoader.hpp
@@ -36,6 +36,7 @@ namespace Render {
         SH_FRAG_BLURPREPARE,
         SH_FRAG_BLURFINISH,
         SH_FRAG_SHADOW,
+        SH_FRAG_INNER_GLOW,
         SH_FRAG_SURFACE,
         SH_FRAG_BORDER1,
         SH_FRAG_GLITCH,
diff --git a/src/render/decorations/CHyprInnerGlowDecoration.cpp b/src/render/decorations/CHyprInnerGlowDecoration.cpp
new file mode 100644
index 00000000..a60deccb
--- /dev/null
+++ b/src/render/decorations/CHyprInnerGlowDecoration.cpp
@@ -0,0 +1,104 @@
+#include "CHyprInnerGlowDecoration.hpp"
+
+#include "../../Compositor.hpp"
+#include "../pass/InnerGlowPassElement.hpp"
+#include "../Renderer.hpp"
+#include "../OpenGL.hpp"
+
+CHyprInnerGlowDecoration::CHyprInnerGlowDecoration(PHLWINDOW pWindow) : IHyprWindowDecoration(pWindow), m_window(pWindow) {
+    ;
+}
+
+eDecorationType CHyprInnerGlowDecoration::getDecorationType() {
+    return DECORATION_INNER_GLOW;
+}
+
+SDecorationPositioningInfo CHyprInnerGlowDecoration::getPositioningInfo() {
+    SDecorationPositioningInfo info;
+    info.policy = DECORATION_POSITION_ABSOLUTE;
+    info.edges  = DECORATION_EDGE_BOTTOM | DECORATION_EDGE_LEFT | DECORATION_EDGE_RIGHT | DECORATION_EDGE_TOP;
+    return info;
+}
+
+void CHyprInnerGlowDecoration::onPositioningReply(const SDecorationPositioningReply& reply) {
+    updateWindow(m_window.lock());
+}
+
+uint64_t CHyprInnerGlowDecoration::getDecorationFlags() {
+    return DECORATION_NON_SOLID;
+}
+
+std::string CHyprInnerGlowDecoration::getDisplayName() {
+    return "Inner Glow";
+}
+
+void CHyprInnerGlowDecoration::damageEntire() {
+    const auto PWINDOW = m_window.lock();
+    if (!validMapped(PWINDOW))
+        return;
+
+    CBox       windowBox = PWINDOW->getWindowMainSurfaceBox();
+
+    const auto PWORKSPACE = PWINDOW->m_workspace;
+    if (PWORKSPACE && PWORKSPACE->m_renderOffset->isBeingAnimated() && !PWINDOW->m_pinned)
+        windowBox.translate(PWORKSPACE->m_renderOffset->value());
+    windowBox.translate(PWINDOW->m_floatingOffset);
+
+    g_pHyprRenderer->damageRegion(CRegion(windowBox));
+}
+
+void CHyprInnerGlowDecoration::updateWindow(PHLWINDOW pWindow) {
+    const auto PWINDOW = m_window.lock();
+    m_lastWindowPos    = PWINDOW->m_realPosition->value();
+    m_lastWindowSize   = PWINDOW->m_realSize->value();
+}
+
+void CHyprInnerGlowDecoration::draw(PHLMONITOR pMonitor, float const& a) {
+    CInnerGlowPassElement::SInnerGlowData data;
+    data.deco = this;
+    data.a    = a;
+    g_pHyprRenderer->m_renderPass.add(makeUnique<CInnerGlowPassElement>(data));
+}
+
+void CHyprInnerGlowDecoration::render(PHLMONITOR pMonitor, float const& a) {
+
+    static auto PGLOW      = CConfigValue<Hyprlang::INT>("decoration:glow:enabled");
+    static auto PGLOWRANGE = CConfigValue<Hyprlang::INT>("decoration:glow:range");
+    static auto PGLOWPOWER = CConfigValue<Hyprlang::INT>("decoration:glow:render_power");
+
+    if (!*PGLOW)
+        return;
+
+    const auto PWINDOW = m_window.lock();
+
+    if (!validMapped(PWINDOW))
+        return;
+
+    const auto ROUNDING      = PWINDOW->rounding() > 0 ? PWINDOW->rounding() - 1 : PWINDOW->rounding();
+    const auto ROUNDINGPOWER = PWINDOW->roundingPower();
+    const auto PWORKSPACE    = PWINDOW->m_workspace;
+    const auto WORKSPACEOFF  = PWORKSPACE && !PWINDOW->m_pinned ? PWORKSPACE->m_renderOffset->value() : Vector2D();
+
+    CBox       windowBox = {m_lastWindowPos.x, m_lastWindowPos.y, m_lastWindowSize.x, m_lastWindowSize.y};
+    windowBox.translate(-pMonitor->m_position + WORKSPACEOFF + PWINDOW->m_floatingOffset);
+    windowBox.scale(pMonitor->m_scale).round();
+
+    if (windowBox.width < 1 || windowBox.height < 1)
+        return;
+
+    const int   GLOWSIZE  = *PGLOWRANGE;
+    const float GLOWPOWER = *PGLOWPOWER;
+    const auto  GLOWCOLOR = m_window->m_realGlowColor->value();
+
+    g_pHyprRenderer->m_renderData.currentWindow = m_window;
+
+    g_pHyprRenderer->blend(true);
+
+    g_pHyprOpenGL->renderInnerGlow(windowBox, ROUNDING * pMonitor->m_scale, ROUNDINGPOWER, GLOWSIZE * pMonitor->m_scale, GLOWCOLOR, GLOWPOWER, a);
+
+    g_pHyprRenderer->m_renderData.currentWindow.reset();
+}
+
+eDecorationLayer CHyprInnerGlowDecoration::getDecorationLayer() {
+    return DECORATION_LAYER_OVER;
+}
diff --git a/src/render/decorations/CHyprInnerGlowDecoration.hpp b/src/render/decorations/CHyprInnerGlowDecoration.hpp
new file mode 100644
index 00000000..a2e4d79a
--- /dev/null
+++ b/src/render/decorations/CHyprInnerGlowDecoration.hpp
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "IHyprWindowDecoration.hpp"
+
+class CHyprInnerGlowDecoration : public IHyprWindowDecoration {
+  public:
+    CHyprInnerGlowDecoration(PHLWINDOW);
+    virtual ~CHyprInnerGlowDecoration() = default;
+
+    virtual SDecorationPositioningInfo getPositioningInfo();
+
+    virtual void                       onPositioningReply(const SDecorationPositioningReply& reply);
+
+    virtual void                       draw(PHLMONITOR, float const& a);
+
+    virtual eDecorationType            getDecorationType();
+
+    virtual void                       updateWindow(PHLWINDOW);
+
+    virtual void                       damageEntire();
+
+    virtual eDecorationLayer           getDecorationLayer();
+
+    virtual uint64_t                   getDecorationFlags();
+
+    virtual std::string                getDisplayName();
+
+    void                               render(PHLMONITOR, float const& a);
+
+  private:
+    PHLWINDOWREF m_window;
+
+    Vector2D     m_lastWindowPos;
+    Vector2D     m_lastWindowSize;
+};
diff --git a/src/render/decorations/IHyprWindowDecoration.hpp b/src/render/decorations/IHyprWindowDecoration.hpp
index 9916d392..5f77ea42 100644
--- a/src/render/decorations/IHyprWindowDecoration.hpp
+++ b/src/render/decorations/IHyprWindowDecoration.hpp
@@ -9,6 +9,7 @@ enum eDecorationType : int8_t {
     DECORATION_NONE = -1,
     DECORATION_GROUPBAR,
     DECORATION_SHADOW,
+    DECORATION_INNER_GLOW,
     DECORATION_BORDER,
     DECORATION_CUSTOM
 };
diff --git a/src/render/pass/InnerGlowPassElement.cpp b/src/render/pass/InnerGlowPassElement.cpp
new file mode 100644
index 00000000..04ccebd7
--- /dev/null
+++ b/src/render/pass/InnerGlowPassElement.cpp
@@ -0,0 +1,13 @@
+#include "InnerGlowPassElement.hpp"
+
+CInnerGlowPassElement::CInnerGlowPassElement(const CInnerGlowPassElement::SInnerGlowData& data_) : m_data(data_) {
+    ;
+}
+
+bool CInnerGlowPassElement::needsLiveBlur() {
+    return false;
+}
+
+bool CInnerGlowPassElement::needsPrecomputeBlur() {
+    return false;
+}
diff --git a/src/render/pass/InnerGlowPassElement.hpp b/src/render/pass/InnerGlowPassElement.hpp
new file mode 100644
index 00000000..62db7791
--- /dev/null
+++ b/src/render/pass/InnerGlowPassElement.hpp
@@ -0,0 +1,28 @@
+#pragma once
+#include "PassElement.hpp"
+
+class CHyprInnerGlowDecoration;
+
+class CInnerGlowPassElement : public IPassElement {
+  public:
+    struct SInnerGlowData {
+        CHyprInnerGlowDecoration* deco = nullptr;
+        float                     a    = 1.F;
+    };
+
+    CInnerGlowPassElement(const SInnerGlowData& data_);
+    virtual ~CInnerGlowPassElement() = default;
+
+    virtual bool        needsLiveBlur();
+    virtual bool        needsPrecomputeBlur();
+
+    virtual const char* passName() {
+        return "CInnerGlowPassElement";
+    }
+
+    virtual ePassElementType type() {
+        return EK_INNER_GLOW;
+    };
+
+    SInnerGlowData m_data;
+};
diff --git a/src/render/pass/PassElement.hpp b/src/render/pass/PassElement.hpp
index 0dc5f581..c262b36c 100644
--- a/src/render/pass/PassElement.hpp
+++ b/src/render/pass/PassElement.hpp
@@ -13,7 +13,8 @@ enum ePassElementType : uint8_t {
     EK_SHADOW,
     EK_SURFACE,
     EK_TEXTURE,
-    EK_TEXTURE_MATTE
+    EK_TEXTURE_MATTE,
+    EK_INNER_GLOW
 };
 
 class IPassElement {
diff --git a/src/render/shaders/glsl/inner_glow.frag b/src/render/shaders/glsl/inner_glow.frag
new file mode 100644
index 00000000..2fc405c0
--- /dev/null
+++ b/src/render/shaders/glsl/inner_glow.frag
@@ -0,0 +1,57 @@
+#version 300 es
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+
+#include "defines.h"
+
+precision     highp float;
+in vec4       v_color;
+in vec2       v_texcoord;
+
+uniform int   sourceTF; // eTransferFunction
+uniform int   targetTF; // eTransferFunction
+uniform mat3  targetPrimariesXYZ;
+
+uniform vec2  topLeft;
+uniform vec2  bottomRight;
+uniform vec2  fullSize;
+uniform float radius;
+uniform float roundingPower;
+uniform float range;
+uniform float shadowPower;
+
+#if USE_CM
+#include "cm_helpers.glsl"
+#include "CM.glsl"
+#endif
+
+#include "inner_glow.glsl"
+
+layout(location = 0) out vec4 fragColor;
+void main() {
+    vec4 pixColor = v_color;
+
+    fragColor = getInnerGlow(pixColor, v_texcoord, radius, roundingPower, topLeft, fullSize, range, shadowPower, bottomRight
+#if USE_CM
+                             ,
+                             sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange
+#if USE_ICC
+                             ,
+                             iccLut3D, iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+                             ,
+                             targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+                             ,
+                             maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance
+#endif
+#if USE_SDR_MOD
+                             ,
+                             sdrSaturation, sdrBrightnessMultiplier
+#endif
+#endif
+#endif
+    );
+}
diff --git a/src/render/shaders/glsl/inner_glow.glsl b/src/render/shaders/glsl/inner_glow.glsl
new file mode 100644
index 00000000..b0d55b19
--- /dev/null
+++ b/src/render/shaders/glsl/inner_glow.glsl
@@ -0,0 +1,106 @@
+#ifndef ALLOW_INCLUDES
+#define ALLOW_INCLUDES
+#extension GL_ARB_shading_language_include : enable
+#endif
+#ifndef INNER_GLOW_GLSL
+#define INNER_GLOW_GLSL
+
+#include "cm_helpers.glsl"
+
+float innerGlowAlpha(float distFromEdge, float range, float glowPower) {
+    if (distFromEdge >= range)
+        return 0.0;
+
+    if (distFromEdge <= 0.0)
+        return 1.0;
+
+    return pow(1.0 - distFromEdge / range, glowPower);
+}
+
+float innerGlowModifiedLength(vec2 a, float roundingPower) {
+    return pow(pow(abs(a.x), roundingPower) + pow(abs(a.y), roundingPower), 1.0 / roundingPower);
+}
+
+float innerGlowSmin(float a, float b, float k) {
+    float h = max(k - abs(a - b), 0.0) / k;
+    return min(a, b) - h * h * h * k * (1.0 / 6.0);
+}
+
+vec4 getInnerGlow(vec4 pixColor, vec2 v_texcoord, float radius, float roundingPower, vec2 topLeft, vec2 fullSize, float range, float glowPower, vec2 bottomRight
+#if USE_CM
+                  ,
+                  int sourceTF, int targetTF, mat3 convertMatrix, vec2 srcTFRange, vec2 dstTFRange
+#if USE_ICC
+                  ,
+                  highp sampler3D iccLut3D, float iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+                  ,
+                  mat3 targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+                  ,
+                  float maxLuminance, float dstMaxLuminance, float dstRefLuminance, float srcRefLuminance
+#endif
+#if USE_SDR_MOD
+                  ,
+                  float sdrSaturation, float sdrBrightnessMultiplier
+#endif
+#endif
+#endif
+) {
+    vec2 pixCoord = fullSize * v_texcoord;
+
+    // clip to the rounded rectangle shape using actual SDF
+    vec2  center  = fullSize * 0.5;
+    vec2  p       = abs(pixCoord - center);
+    vec2  q       = p - (center - vec2(radius));
+    vec2  qc      = max(q, vec2(0.0));
+    float cornerD = (qc.x > 0.0 || qc.y > 0.0) ? innerGlowModifiedLength(qc, roundingPower) : 0.0;
+    float sdfDist = cornerD + min(max(q.x, q.y), 0.0) - radius;
+
+    if (sdfDist > 0.0)
+        discard;
+
+    // smooth-min of edge distances for rounded glow contours
+    float distT = pixCoord.y;
+    float distB = fullSize.y - pixCoord.y;
+    float distL = pixCoord.x;
+    float distR = fullSize.x - pixCoord.x;
+
+    float k = range;
+    float distFromEdge = innerGlowSmin(innerGlowSmin(distT, distB, k), innerGlowSmin(distL, distR, k), k);
+
+    pixColor[3] = pixColor[3] * innerGlowAlpha(distFromEdge, range, glowPower);
+
+    if (pixColor[3] == 0.0) 
+        discard;
+
+    // premultiply
+    pixColor.rgb *= pixColor[3];
+
+#if USE_CM
+    pixColor = doColorManagement(pixColor, sourceTF, targetTF, convertMatrix, srcTFRange, dstTFRange
+#if USE_ICC
+                                 ,
+                                 iccLut3D, iccLutSize
+#else
+#if USE_TONEMAP || USE_SDR_MOD
+                                 ,
+                                 targetPrimariesXYZ
+#endif
+#if USE_TONEMAP
+                                 ,
+                                 maxLuminance, dstMaxLuminance, dstRefLuminance, srcRefLuminance
+#endif
+#if USE_SDR_MOD
+                                 ,
+                                 sdrSaturation, sdrBrightnessMultiplier
+#endif
+#endif
+    );
+#endif
+
+    return pixColor;
+}
+#endif