Procedural Textures

The terrain was created using the same method as the “Procedurally Generated Terrain” project. The procedural texture is based on a noise algorithm. The trees are a texture-mapped image of a tree onto a rectangle. The alpha channels of the tree are transparent. The trees have billboarding apply so that the tree rectangles turn to face the user and are also drawn from back to front so that the transparency remains correct.

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Isosurface Computation and Display

The purpose for this project was to visualize interactively isosurfaces of a 3D dataset for three levels of resolution. Using the provided datasets, I extracted and rendered an isosurface. I also added two user interface components that allow a user to change the isovalue of the isosurface and level of resolution of the dataset.

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2D Contouring and Color Maps

The purpose of this project was to visualize how Mount St. Helens was changed by the eruption of 5/18/80. I used Historic Digital Elevation Models (DEM) from the United States Geological Survey website. The terrains have a color map to show the elevations and also has 2D contours at proper elevations to highlight distinct heights. The terrains […]

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Hatching Shader

This is a shader implementation of Real-Time Hatching, Praun et al. [2001]. The scene contains a real-time rendering of hatching strokes over various objects. They use tonal art maps containing different stroke sizes and density at various resolutions. Using these tonal art maps, we can render strokes on complex surfaces.

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