深度と法線を組み合わせたテクスチャを生成します
Will generate a screen-space depth and view space normals texture as seen from this camera.
Texture will be in RenderTextureFormat.ARGB32 format and will be set as _CameraDepthNormalsTexture
global shader property. Depth and normals will be specially encoded, see Camera
Depth Texture page for details.
See Also: Camera.depthTextureMode.