Hot Spot Studio

Hot Spot Studio is a fun little tool that works like this: you have a blank canvas and you’re free to add as many lights as you want to it. You get to choose where to place the lights, how large the lights are, what color their have, and what intensity level they are. Once you’re done, click Render Picture and Hot Spot Studio will generate a stunning looking image, image that you can save locally as a JPG, PNG, TIFF, or BMP.

Hot Spot Studio is a portable application and that, of course, means you won’t have to install it. Download an archive, extract its contents, and run Spots.exe. These are the simple steps you must go through to get Hot Spot Studio up and running on a PC that runs a 32- or 64-bit version of Windows, anything from Windows XP up to windows 10.

Three tabs are displayed on Hot Spot Studio’s interface:
Design – add all the lights you want, pick light color, set light size, pick light intensity level, set background color, load background image.
Rendering – this is where your image will be displayed on the application is done rendering it. You can save the image locally as a JPG, PNG, TIFF, or BMP.
About – this one is self-explanatory.

Hot Spot Studio is freeware. RL Vision offers this fun tool for the great price of free.

Get Hot Spot Studio and have a bit of fun. Add lights to the canvas and let this free tool render them into a stunning image.

Pros
Hot Spot Studio is a portable Windows application that doesn’t need to be installed. From the Design tab you can add all the lights you want, pick light color, set light size, pick light intensity level, set background color, and load a background image. Rendered images can be saved as JPG, PNG, TIFF, or BMP. Hot Spot Studio is free software.

Cons
None that I could think of.