Prof. Dr. Jürgen Döllner


Stereo Coherence in Watercolour Rendering

We investigate stereo coherence – or consistency of stereoscopic views – in non-photorealistic rendering (NPR) by example. We designed and carried out a pilot user study that compared stereoscopic animations created using two different watercolour rendering styles. The rendering styles use image-space and object-space noise respectively. A clear majority of participants preferred the object-based technique and found it more comfortable to watch than the image-space technique which suffers from the ‘shower door effect’. Based on these preliminary results, we conclude that stereo coherence is indeed a desirable property for non-photorealistic rendering techniques.
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