Additional shaders

shaders/anamorphic-desqueeze/shader.json

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+{
+  "id": "anamorphic-desqueeze",
+  "name": "Anamorphic Desqueeze",
+  "description": "Desqueezes anamorphic footage by 1.3x, 1.33x, 1.5x, or 2x with fit or fill framing.",
+  "category": "Transform",
+  "entryPoint": "shadeVideo",
+  "parameters": [
+    {
+      "id": "desqueezeFactor",
+      "label": "Desqueeze",
+      "type": "enum",
+      "default": "x1_33",
+      "options": [
+        { "value": "x1_3", "label": "1.3x" },
+        { "value": "x1_33", "label": "1.33x" },
+        { "value": "x1_5", "label": "1.5x" },
+        { "value": "x2_0", "label": "2x" }
+      ]
+    },
+    {
+      "id": "framing",
+      "label": "Framing",
+      "type": "enum",
+      "default": "fit",
+      "options": [
+        { "value": "fit", "label": "Fit" },
+        { "value": "fill", "label": "Fill" }
+      ]
+    },
+    {
+      "id": "pan",
+      "label": "Pan",
+      "type": "vec2",
+      "default": [0.0, 0.0],
+      "min": [-1.0, -1.0],
+      "max": [1.0, 1.0],
+      "step": [0.001, 0.001]
+    },
+    {
+      "id": "outsideColor",
+      "label": "Outside Color",
+      "type": "color",
+      "default": [0.0, 0.0, 0.0, 1.0]
+    }
+  ]
+}

shaders/anamorphic-desqueeze/shader.slang

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+float selectedDesqueezeFactor()
+{
+    if (desqueezeFactor == 0)
+        return 1.3;
+    if (desqueezeFactor == 1)
+        return 1.3333333;
+    if (desqueezeFactor == 2)
+        return 1.5;
+    return 2.0;
+}
+
+float4 shadeVideo(ShaderContext context)
+{
+    float factor = selectedDesqueezeFactor();
+    float2 centered = context.uv - 0.5;
+
+    if (framing == 0)
+    {
+        centered.y *= factor;
+    }
+    else
+    {
+        centered.x /= factor;
+    }
+
+    float2 sourceUv = centered + 0.5 - pan;
+    bool inside = sourceUv.x >= 0.0 && sourceUv.x <= 1.0 && sourceUv.y >= 0.0 && sourceUv.y <= 1.0;
+    if (!inside)
+        return outsideColor;
+
+    return sampleVideo(sourceUv);
+}