Thinkbox Software has added Next Limit's RealFlow and Maxwell to the list of third-party applications that are available on demand through its e-commerce portal via the company's usage-based licensing model.

The RealFlow fluid simulator and the Maxwell 3D rendering engine are both available by the minute, along with other on-demand applications including Thinkbox's own Deadline and Krakatoa, The Foundry's Nuke and Katana, Chaos Group's V-Ray, Nvidia's Iray and Mental Ray, Redshift, and Peregrine Labs' Yeti.

"On-demand licensing empowers customers of all sizes to work how and where they want with the ability to scale at a moment's notice, and our aim is to continue to bring this infinite scale and flexibility to our users with key partners like Next Limit," said Thinkbox founder Chris Bond in a prepared statement.

Pricing for RealFlow and Maxwell both start at $.09/hour (with the purchase of 60,000 hours) and scale to $0.28/hour with the purchase of 750 hours, the smallest package offered.