Rendering is the process of creating a final image from a 2D or 3D model. This can be done with a variety of different software programs, but V-Ray is one of the most popular. V-Ray is a rendering engine that uses ray tracing to create realistic images. It can be used with a variety of different software programs, but it is most commonly used with 3ds Max, Maya, and Rhinoceros. V-Ray can be used to create images of anything from products to architecture to people.
I don't know much about rendering vray services, but I imagine that it involves using the vray software to create renderings of images or scenes. This could be used for creating images for websites, 3D models, or other purposes.
V-Ray is a rendering engine used for computer graphics. It is developed by Chaos Group, a company based in Sofia, Bulgaria. V-Ray is used in the fields of 3D computer graphics, computer-aided design, and motion graphics. V-Ray is a popular choice for rendering because it is able to produce high-quality images with realistic lighting, shadows, and reflections. V-Ray is also capable of rendering very complex scenes with thousands of objects and materials.