Rendering For VR


You can do stereo rendering in the plugins if you are familiar with the values (map type, resolution) that are compatible for VRImmersively engaging and experiencing depth perception in a three dimensional scene through stereo vision goggles and head-mounted displays.. The camera used for this is a stereoscopic panoramic camera with a Cube Map projection of equal sides (+x,-x,+y,-y,+z,-z).

The advantage of the Standalone Edition is that is has presets for VR rendering:

Figure 1: VR rendering presets


In all cases, it is just like rendering a 2D image in OctaneRender® as a 360x180 panorama. When you are happy with how the panorama looks, it is time to set the scene up for VR.

  1. Make sure that the units are set to Meters. It's best not to change the system unit of an existing scene, but since OctaneRender's default units are in meters, make sure these values are the values that would be equivalent to the units used in the scene. (e.g., 3DS Max® 1 cm = OctaneRender® .01 m ). If possible, change the system unit value before you import or create geometry.
  2. VR scenes are huge. You can temporarily set up the scene with a normal spherical panoramic camera at a low resolution (like 1024×512) so that you can preview the scene and add more textures at optimum performance.

    Figure 2: Setting up the spherical panoramic camera


  3. Turn off Post ProcessingEffects such as Bloom and Glare that are applied after a scene has been rendered. in Render Setup.

    Figure 3: Disabling post-processing


  4. Make sure that the Objects in the view are 10x the stereo offset distance.
  5. Keep the Camera upright from the Camera Modify Panel.

    Figure 4: Enabling the Keep Upright checkbox


  6. Make sure that lighting is as realistic as possible - try to using the Path Tracing or PMC kernels.
  7. When you are satisfied with how the scene looks, you can proceed to create the final quality render, which is the 18K cube map render. While you're in the Camera parameters, make sure to set the camera type to Cube Map, and then choose a Stereo mode (used side-by-side).
  8. Save the resulting image as an 8-bit PNG.

  9. Click Render.
  10. The resulting image should be an 18K cube map, which you can upload into the VR viewer folder of the device that is compatible with GearVR.

    Figure 6: The final result