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Gaussian Blur Filter Shader
There are different ways to perform blur and this is one of the most common way to do it in a shader. It’s a two step method with first a horizontal blur and then a vertical blur. By splitting the work...
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Mega Textures
Instead of the normal way of texturing with tiled images and trying to blend different types of textures together this approch uses one big texture that covers the whole terrain. Because of the size...
View ArticleTangent Space
Tangent space is (when speaking of rendering) the space built up by the vertex normal and the vertex texture coordinates often called (u,v). This space is useful when dealing with textures with...
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Rendering Geometry with Relief Textures
This is a special technique to do impostors. Instead of only storing the color of the object they also store the depth and the normals. The abstract: “We propose to render geometry using an image based...
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