Need a prototype OpenSceneGraph application working for both desktop and web

We need an experienced OSG developer to start a prototype application showing same code for both Desktop and cloud/browser. There are a few OSG prototype requirement including tri/quad face facelist display, face-based data color rendering and vertex data color rendering. This is a quick prototyping project. Details will be provided. Please do a quick estimate of the cost if possible. Thanks! For details (as a few asked): the prototype code should read a list of vertex 3D coordinate and a face list of triangle faces from these vertices. It should also read data values associated with each vertex (e.g. from 0 to 100). After display faces in uniform color, the OSG display should show a rendered color of R,G,B (form 0 to 256) based on the vertex data value continuous across faces (vertex-based rendering). It then show the face color based on the average value connected vertices (face-based rendering). The project should run on Windows and on a Chrome browser.