by Artifice, Inc.  
 RenderCity! — Amazingly Free Radiance Online Rendering
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The unique RenderCity web-based architectural rendering system allows you to easily create your own architectural computer graphics renderings free using the powerful Radiance lighting simulation system, from 3D models created on your own computer using DesignWorkshop® Professional or other Radiance-compatible applications.

There is a great deal of discussion in the high-tech media these days about Application Service Providers (ASPs), widely considered to be a wave of the future. RenderCity! has been a successful Internet ASP for computer graphics rendering since 1998.

This online rendering machine provides automatic online Radiance rendering, at your fingertips 24 hours a day, 7 days a week. Non-members can run one rendering job at a time with RenderCity!, completely free at resolutions up to 768 x 768 pixels, or on a pay-as-you-go basis at higher resolutions. Technical support for free renderings is provided free by e-mail with a standard 24 hour response time.

RenderCity! memberships  for regular and power users are available for only $19.95 per month. The monthly membership includes  unlimited free rendering at all resolutions, multiple rendering priviledges, rendering priority during peak periods, a personal account with RenderCity! login and ftp privileges, texture customization, project consulting, and free Radiance technical support by phone and email with ASAP response (averaging less than one hour overall, although response times will vary), all for one low monthly rate.   Start My RenderCity! Membership

Technical Support by E-mail —
RenderCity! Phone Support — for members only — 800-203-8324 USA toll-free, 541-345-7421 voice, 541-345-7438 fax

Click Here to Render Online

Conceptual OverviewGalleryStep-by-Step InstructionsImportant NotesRadiance ReferencesDiscussion ListRadiance Trees

Note:   RenderCity requires Netscape 4.0 or Internet Explorer 4.0 or higher. If you encounter any difficulty using this system, please contact Artifice Support at

Conceptual Overview of RenderCity Online Rendering

RenderCity works by modeling with DesignWorkshop (or other Radiance-compatible 3D CAD software) at your own personal computer, and then rendering online using this web site.

To prepare for using RenderCity, first build the model of your project in DesignWorkshop. Then, working in the modeling window, choose the view you want to render, and then use the File menu, Export 3D > Radiance Scene command. This creates the three text files which are used as input to the Radiance system, with the filename extensions ".rad", ".mat", and ".rif".

Then come to this page, and click on the "Submit Renderings" link above to go to the Start Here page for RenderCity. This first page of the rendering setup process collects enough information to predict the rendering charges, if any, which are then displayed when you go on to the second page.

For most renderings (currently everything up 768x768 high resolution), the cost to you is zip, zero, ziltch, nada, nothing. If this is the case with your rendering, then select the remaining Radiance files for the project, and click at the bottom of the second page to start rendering.

If any charges are shown at the second page, then there's one step to the process. If the cost shown meets your approval, then enter your credit card payment information and go to the third page, where you check and confirm the setup before anything actually happens. If the information shown on the third page is all correct, then select the remaining Radiance files for the project, and click at the bottom of the third page to accept the charges and start rendering.

Either way, when you click to start rendering, your files will be uploaded to the server, and the rendering process will start automatically. You will receive an acknowledgement by e-mail right away, and periodic progress messages as the rendering continues. Then, when the rendering process is complete, the finished image (in the image format you have indicated) will be delivered to you automatically by email.

Step-by-Step Instructions for Radiance Rendering Online

Rendering with Radiance is easy using DesignWorkshop Professional together with this unique self-service online rendering machine. Here's how to do it, step by step:

Preparation:   Create the Radiance file set with DesignWorkshop Professional.

Build your model, set the latitude and time of day, assign lights and materials, and preview them in Lights and Textures. Then go to the modeling window, and go to the exact view you want to render, and use the File menu Export 3D > Radiance Scene command to create the three Radiance input files. You will only set the name for the ".rad" file, which must have the .rad extension. The .mat and .rif files will automatically be created with the identical base filename. None of the three filenames should be changed after the files are created, except by Radiance expert users.

1)   Fill out the form on the Start Here page. You must include your name and e-mail address, both for communication, and because your completed rendering will be delivered to you by e-mail.

Make any changes you want to the default rendering settings available in the Start Here form.

Click the "Browse..." button by filename field in the form above, to choose the Radiance control file (.rif) on your computer to be uploaded.

2)   When the form on this page is complete, click the Preview Rendering Charges button to go to the Step Two page, where the cost calculated will be displayed for the rendering you have set up.

If you would like to accept those cards and proceed to run the rendering, follow the rest of the instructions, entering your credit card information to pay for the rendering costs, and then click the button to go to the Step Three page.

3)   Check and confirm the rendering charges, and then select the two remaining Radiance files needed for the rendering, as shown. When done, click the "Accept charges and Submit Rendering" button.

When the files have successfully received by the web server, a "Thank You" page will be displayed. Rendering will commence a little later, as soon as all the files have been received at the rendering server. You will be sent an e-mail message if any errors occur after the uploading process.

When the rendering is complete, the final output image file will be delivered to you by email. After your rendering is finished, your project files will be deleted from the rendering server.

Important User Notes

Questions and feedback are appreciated! Please contact Artifice Support by email at

Rendering Setup - Step One

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