Volume Camera Rendering for 3D Integrity in Mixed Reality
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Solution Overview
Problem
Existing methods for rendering 3D content in mixed reality environments fail to maintain the three-dimensional integrity of the content, as they are designed for 2D screen display and do not adapt well to 3D environments.
Innovation Solution
Implementing a volume camera that defines a 3D volume of space, applies a view transform to capture and render 3D content in mixed reality environments, using a bounding or unbounded space, and employs a backing camera for frustum culling to optimize content selection and rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a virtual camera is used to frame 3D content for 2D screen display, then the content can be displayed on 2D screens, but the model does not work when the content is displayed in a mixed reality environment in three dimensions
Solution Approach 1:
The patent transitions from 2D camera projection models to a 3D volume-based rendering model that preserves spatial integrity in mixed reality environments. The volume camera defines a three-dimensional capture region with near and far clipping planes, allowing proper framing of 3D content for 3D displays without losing geometric accuracy.
2Manufacturing precision
If 3D content is rendered using traditional virtual camera models, then rendering can be performed on 2D screens, but spatial relationships and geometric accuracy are not preserved when transitioning to 3D display
Solution Approach 1:
The patent introduces volume-based parameters including near clipping plane, far clipping plane, and volume definition that fundamentally change how camera rendering works. These parameter changes enable proper 3D content framing while maintaining geometric accuracy through perspective transformations adapted for volumetric capture regions.
3Manufacturing precision
If traditional camera models are used for 3D content, then the system remains simple and compatible with existing workflows, but the quality of rendered images in mixed reality environments deteriorates
Solution Approach 1:
The volume camera model serves multiple functions: it frames 3D content for both 2D and 3D displays, maintains geometric accuracy through perspective transformations, and works with existing 3D content pipelines. This multi-functional approach improves rendering quality without requiring complete system redesign.
Data Source
AI summary
A method of rendering 3D content in a mixed reality environment is disclosed. A volume camera is defined within first virtual environment. The volume camera is configured to capture a 3D volume of space. The defining includes setting parameters for a position or an orientation to be captured by the volume camera. A volume view transform is applied to the volume camera to establish a perspective of the volume camera within the 3D volume of space. The volume view transform is configured to define the position or the orientation relative to the 3D content in the 3D volume of space. Selected 3D content is processed within the 3D volume of space based on a configuration of the volume camera. The selected 3D content is rendered into a second virtual environment based on the configuration. The rendering includes adapting to a perspective of a user within the second virtual environment.