🟦 [Nodes] Add a Post-Process Glow. closes #110

CoolLibs · Dec 30, 2024 · 026f586 · 026f586
1 parent a840530
commit 026f586
Show file tree

Hide file tree

Showing 2 changed files with 120 additions and 0 deletions.
diff --git a/Nodes/11 Image Modifier (Post Process)/Glow.clbnode b/Nodes/11 Image Modifier (Post Process)/Glow.clbnode
@@ -0,0 +1,34 @@
+// Credit: [illtellyoulater](https://github.com/CoolLibs/Lab/issues/110)
+
+INPUT UV->Oklab_PremultipliedA 'Image';
+INPUT float 'Brightness';
+INPUT float 'Size';
+INPUT int 'Quality'; /// The higher the number the smoother the result, but it will start to get laggy if set too high.
+INPUT float 'Mask';
+
+vec4 blur(vec2 uv)
+{
+    vec4 color = vec4(0.);
+    for (int x = -'Quality'; x <= 'Quality'; x++)
+    {
+        for (int y = -'Quality'; y <= 'Quality'; y++)
+        {
+            vec2 offset = vec2(x, y) / 'Quality' * 'Size';
+            color += 'Image'(uv + offset);
+        }
+    }
+
+    float weights_sum = (2. * 'Quality' + 1.) * (2. * 'Quality' + 1.);
+    return color / weights_sum;
+}
+
+Oklab_PremultipliedA main(UV uv)
+{
+    vec4 blurred = blur(uv);
+    vec4 glow    = blurred * 'Brightness';
+    vec4 base    = 'Image'(uv);
+
+    // Combine original image and glow
+    // return mix(base, glow, 'Blend Strength');
+    return base + glow * 'Mask';
+}
diff --git a/Nodes/11 Image Modifier (Post Process)/Glow.clbnode.presets.json b/Nodes/11 Image Modifier (Post Process)/Glow.clbnode.presets.json
@@ -0,0 +1,86 @@
+{
+    "Presets": {
+        "Underlying container": [
+            {
+                "first": "d07c9f21-6de8-4dfd-bc8f-04a5573983de",
+                "second": {
+                    "Name": "Default",
+                    "Values": [
+                        {
+                            "index": 2,
+                            "data": {
+                                "Name": "Brightness",
+                                "Value": 1.5,
+                                "Metadata": {
+                                    "Bounds": {
+                                        "Has min bound": true,
+                                        "Min": 0.0,
+                                        "Has max bound": false,
+                                        "Max": 1.0,
+                                        "Drag speed": 0.009999999776482582,
+                                        "Use slider": false,
+                                        "Is logarithmic": false
+                                    }
+                                }
+                            }
+                        },
+                        {
+                            "index": 2,
+                            "data": {
+                                "Name": "Size",
+                                "Value": 0.15000000596046449,
+                                "Metadata": {
+                                    "Bounds": {
+                                        "Has min bound": true,
+                                        "Min": 0.0,
+                                        "Has max bound": false,
+                                        "Max": 1.0,
+                                        "Drag speed": 0.0010000000474974514,
+                                        "Use slider": false,
+                                        "Is logarithmic": false
+                                    }
+                                }
+                            }
+                        },
+                        {
+                            "index": 1,
+                            "data": {
+                                "Name": "Quality",
+                                "Value": 3,
+                                "Metadata": {
+                                    "Bounds": {
+                                        "Has min bound": true,
+                                        "Min": 1,
+                                        "Has max bound": true,
+                                        "Max": 6,
+                                        "Drag speed": 0.009999999776482582,
+                                        "Use slider": false,
+                                        "Is logarithmic": false
+                                    }
+                                }
+                            }
+                        },
+                        {
+                            "index": 2,
+                            "data": {
+                                "Name": "Mask",
+                                "Value": 1.0,
+                                "Metadata": {
+                                    "Bounds": {
+                                        "Has min bound": true,
+                                        "Min": 0.0,
+                                        "Has max bound": true,
+                                        "Max": 1.0,
+                                        "Drag speed": 0.009999999776482582,
+                                        "Use slider": true,
+                                        "Is logarithmic": false
+                                    }
+                                }
+                            }
+                        }
+                    ]
+                }
+            }
+        ]
+    }
+}