| | 41 | ==== nVidia 3D Vision already provides stereoscopic 3D for games. What's the difference with this plugin? ==== |
| | 42 | nVidia 3D Vision provides stereoscopic 3D effects for most 3D games based on Unity, without needing any plugin. It does that by "expanding" the camera at the driver level (DirectX) while Unity is rendering the scene. |
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| | 44 | nVidia 3D Vision stereoscopic 3D has some limitations: |
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| | 46 | * Real-time shadows and image effects are not properly supported. They often cause "ghosting" and other artifacts in the stereoscopic scene. This happens because of the shadow phase still being applied once per frame, instead of once per eye and frame. |
| | 47 | * Expanding the camera at DirectX level can cause more camera displacement than the scene was designed to. The typical effect is to see through walls when approaching them if the collider is adjusted for monoscopic vision (as usually is). |
| | 48 | * Advanced 3D stereo settings cannot be properly achieved. You can tweak the parameters exposed by nVidia 3D Vision only. For instance, you cannot setup a frustrum-based stereoscopic parallax projection. |
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| | 52 | By using Active Stereoscopic 3D for Unity you can set up your scene using two Unity Cameras, one per eye. Then tweak the stereo parameters in the way you want. You have complete control over the settings for both cameras. A fully working camera rig prefab is included, which allows setting true stereoscopic 3D parameters such as parallax distance, frustrum convergence, etc. Each camera renders the full scene to each eye so everything is displayed as expected, including shadows and image post-processing effects. |
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