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Description
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The aim of the RESHADE project is to simulate the mutual shading effects between real and virtual objects in mixed reality applications. In this master thesis a GPU-based ray tracing solution should be implemented with a focus on refraction and reflection. That means real objects should refract and reflect virtual ones and vice versa. The geometry of real objects is pre-modelled and their BRDFs are preset. The goal is to provide a good illusion for human perception, i.e. a sufficient degree of photo-realism, while still maintaining interactive frame rates as required for mixed reality.
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Task
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Our approach called "Differential Instant Radiosity" should be supplemented by a differential ray tracing approach. In differential rendering the difference between a solution that only considers real objects with one that considers real and virtual ones are superimposed to images of the real scene captured by a webcam. This minimizes the BRDF estimation error of real objects. In contrast to our solution, which uses instant radiosity, GPU-based ray tracing will be used as rendering technique. If feasible both approaches should be integrated and used in combination.
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Requirements
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The students should be interested in some of the following topics: Ray tracing, real time rendering, mixed reality.
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Environment
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The implementation will be based on Nvidia's Optix Framework . Optical tracking will be provided by Studierstube Tracker or PTAM.
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Additional Information
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Contact: traxler {ät} cg . tuwien . ac . at
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