Exporting Cubemaps (Photoshop)
Once you have a series of images laid out in Photoshop and ready to use as a Cubemap, then you are ready to start exporting. In this example, we will use the NVIDIA Texture Tools plug-in for Photoshop CS6. If you have not downloaded and installed this plug-in yet, you can get it from here.
- First, make sure your textures for the Cubemap are lined up in a single document. You will also need to make sure that the image are all the same size and that the selected size is a power of two. Finally, make sure that the textures used in the Cubemap are correctly rotated as described here.
- When that has all be completed, go to the File menu and select the Save As option.
- In the Save As window, choose D3D/DDS (_.DDS; _.DDS) and name your file.
- In the NVIDIA dds Format window, choose 220.127.116.11 ARGB 32 bpp | unsigned from the combobox at the top. Set the combobox underneath to Cube Map. Set MIP Map Generation group to No MIP maps.
- Click Save.
Images used here are derived from light probes originally from Paul Debevec's website http://www.pauldebevec.com.