# VP8 Image Analyzer Analyze a WebP/VP8 image with Sharp, generate a grayscale displacement map, and render it as an interactive Three.js 3D relief surface > Canonical page: https://elysiatools.com/en/tools/vp8-image-analyzer - **Category:** Design - **Keywords:** vp8, webp, image analyzer, sharp, three.js, displacement map, height map, 3d image ## Overview Upload a WebP or common raster image. Sharp extracts metadata, creates a grayscale height map, and the browser uses Three.js PlaneGeometry with displacementMap for realtime 3D rotation and height inspection. ## Inputs - **Image File** (file): Upload a WebP/VP8 image - **Displacement Scale** (range) - **Plane Segments** (range) - **Max Texture Size** (select) - **Auto Rotate** (checkbox) - **Wireframe Overlay** (checkbox) ## When to use - When you need to visualize the brightness or depth information of a 2D image as a 3D topographical map. - When testing displacement maps and height maps for 3D modeling or game development workflows. - When inspecting WebP or VP8 image metadata and structural details through a visual relief representation. ## How it works - Upload a supported raster image file, such as WebP, JPEG, PNG, or AVIF. - The backend processes the image using Sharp, extracting metadata and converting it into a grayscale height map. - The browser renders a Three.js PlaneGeometry, applying the height map as a displacement texture. - Interact with the 3D model in real-time, adjusting displacement scale, wireframe overlays, and texture resolution. ## Use cases - Visualizing terrain height maps for game engines or GIS applications. - Reviewing texture displacement effects before applying them in 3D rendering software like Blender. - Creating interactive 3D data visualizations from standard 2D brightness maps. ## Frequently asked questions ### What image formats are supported? You can upload WebP, JPEG, PNG, and AVIF images up to 20MB in size. ### What does the displacement scale do? It controls the intensity of the 3D extrusion. A higher value stretches the bright areas further up from the base plane. ### Why change the plane segments? Increasing plane segments adds more geometric detail to the 3D mesh, making the relief smoother, but it requires more processing power. ### Can I view the underlying mesh structure? Yes, enabling the Wireframe Overlay option displays the polygon grid of the 3D plane instead of a solid texture. ### How is the 3D height calculated? The tool converts the image to grayscale. 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