AR Display Shader Overlay for Real-World Lighting Effects
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Solution Overview
Problem
Current augmented reality systems fail to realistically render lighting effects on real-world objects, as they only overlay digital objects without modifying the user's view of the real-world environment beyond displaying lighting sources, lacking accurate reflection, refraction, and absorption of computer-generated light sources.
Innovation Solution
The method involves overlaying a shader on the augmented reality display, corresponding to the three-dimensional geometry of the environment, with computer-generated lighting sources that illuminate real-world objects, incorporating direct and reflected/refracted lighting effects based on surface reflectivity and geometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a shader is overlaid and illuminated by computer-generated lighting sources, then lighting effects are rendered on real-world objects, but the device complexity increases
Solution Approach 1:
A shader is introduced as an intermediary layer between the computer-generated lighting source and the real-world objects. The shader captures lighting information from virtual sources and transfers it to illuminate real objects in the augmented reality scene, enabling realistic lighting effects without requiring direct modification of the real-world environment or complex hardware changes.
Solution Approach 2:
The system creates a digital copy of lighting information from computer-generated sources and applies it to real-world objects through the shader. Instead of physically introducing light sources into the real environment, the patent copies the visual effect of lighting onto a shader overlay that matches the geometry of real objects, achieving realistic illumination through digital reproduction.
2Reliability
If computer-generated lighting sources are introduced, then lighting effects are simulated on real-world objects, but the realism of augmented reality view is enhanced
Solution Approach 1:
The shader is configured to apply different lighting properties to different regions corresponding to real-world objects. Each object receives customized lighting effects based on its geometry, material properties, and position relative to virtual light sources, enabling realistic differential illumination where surfaces facing light sources are brighter and shadowed areas are darker.
Solution Approach 2:
The system dynamically adjusts lighting parameters such as intensity, color, and direction based on the position of virtual light sources and the geometry of real objects. The shader modifies these parameters in real-time to simulate how light would naturally interact with different surfaces, enhancing realism through accurate parameter variation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the realism of augmented reality experiences by accurately simulating light interactions on real-world objects, providing a more immersive view by rendering lighting effects that correspond to the reflectivity and geometry of the environment, making the augmented reality display more engaging and realistic.
Implementation Method 1
reflected lighting from surfaces in the environment
Implementation Method 2
refracted lighting from surfaces in the environment
Data Source
AI summary
Embodiments provide for the rendering of illumination effects on real-world objects in augmented reality systems. An example method generally includes overlaying a shader on the augmented reality display. The shader generally corresponds to a three-dimensional geometry of an environment in which the augmented reality display is operating, and the shader generally comprises a plurality of vertices forming a plurality of polygons. A computer-generated lighting source is introduced into the augmented reality display. One or more polygons of the shader are illuminated based on the computer-generated lighting source, thereby illuminating one or more real-world objects in the environment with direct lighting from the computer-generated lighting source and reflected and refracted lighting from surfaces in the environment.