How do I turn a CAD file into product images?

Open the studio, drop in your file, and Rendermio converts it in the browser. Pick a material, choose one of the six Looks — each sets lighting, backdrop, pose and camera together — and export. A first image takes about a minute, and no 3D experience is needed.

Which file formats can I use?

STEP, IGES, BREP, Rhino 3DM, STL, OBJ, glTF, FBX, Collada, PLY, 3MF, AMF, 3DS, VRML, VTK, USDZ and Draco. STEP, IGES and BREP are converted with a real geometry kernel (OpenCascade compiled to WebAssembly) rather than an approximation, so curved surfaces stay curved.

Is my CAD file uploaded anywhere?

No. Conversion and rendering both happen on your own machine, using your GPU through WebGL. The file never leaves the browser and nothing about it is stored on a server — which is the point for anyone working on unreleased designs under NDA. Signing in creates an account for your plan only; it gives us no access to your work.

Can it render diamonds and gemstones properly?

Yes. The Traced renderer follows light through a stone's real facet geometry with dielectric Fresnel and dispersion, rather than faking sparkle with a texture. There are 40 cuts, sixteen of them real cut geometry down to a heart, and every stone in a piece can be tuned on its own.

Does it only do jewellery?

No. The same engine renders cars, furniture, buildings and household products. Jewellery gets the ray-traced gems and measured golds; everything else gets car paint, timber, leather, cloth, stone, glass and the industrial metals. Tell the studio what your file is and it dresses it accordingly.

Still images up to 8K, export packs sized for store listings, social and print, and a 360° turntable video as WebM or MP4. Cut-out PNGs carry a transparent background for compositing, and a contact sheet labels every frame in a pack.

The browser studio is free and ad-supported: all materials, cuts and looks, 8K images and turntable video. $4 a month removes the ads. Cloud path-traced rendering is planned as a further paid tier — email rendermiostudio@gmail.com to be told when it opens.

What do I need to run it?

A current desktop browser with WebGL 2 — Chrome, Edge, Firefox or Safari. Rendering uses your graphics card, so a faster GPU means faster exports, but a normal laptop handles the catalogue designs comfortably.

Rendermio

Mesh formats

Render a VTK file in your browser

VTK is the mesh format of scientific visualisation — simulation results, medical surfaces, research geometry. Rendermio reads legacy VTK polydata in the browser and renders it with studio lighting, which is a different look from ParaView's.

How Rendermio reads VTK

Accepted as .vtk. Legacy VTK polydata files are parsed in the page as a single mesh; normals are used if present and computed otherwise, and disconnected pieces are split into parts. The XML VTK formats (.vtp, .vtu) are not read — export legacy .vtk, or better, convert to PLY or OBJ.

What comes through

The polygonal surface
Normals where present
Separate parts where the mesh is disconnected

What does not

Scalar fields, colour maps and every other data attribute — the render shows geometry with a material, not data
Volumetric and unstructured grids: only surfaces render

Exporting VTK from your CAD program

Extract a surface first in ParaView, then save as legacy VTK or PLY
Decimate dense simulation meshes before export

VTK files typically come from ParaView, VTK and ITK pipelines, medical segmentation tools, CFD post-processors. Working in SolidWorks, Fusion, CATIA, Inventor or Creo? Their native files are not readable in a browser — here is what to export instead.

Then what happens

Once the file is in, the steps are the same for every format: tell the studio what the object is, and it dresses it — one click finds the stones in a ring and makes the rest gold. Pick a Look, which sets lighting, backdrop, pose and camera together. Export a listing pack up to 8K or a 360° turntable video. Everything runs on your own GPU; the file never leaves the page.

Questions

Can I render a simulation surface as a product shot?

Yes. Extract the surface, export as legacy VTK polydata or PLY, and render it with a material and one of the studio Looks. Data colouring is not carried; the result is the shape, lit.

Are .vtp and .vtu supported?

Not directly. Save as legacy .vtk polydata from ParaView, or export PLY or OBJ.

Does it show my scalar field?

No. Rendermio renders materials, not data. For colour-mapped results ParaView is the right tool; for a clean presentation image of the shape, this is.

Render a VTK file

Free · runs in your browser · your file is never uploaded

How Rendermio reads VTK

What comes through

What does not

Exporting VTK from your CAD program

Then what happens

Questions

Other formats