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Tangent 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 Countless Blades of Waving Grass

A full article that presents every aspect of implementing billboarded grass fields in games. It uses a vertex shaders for animating the grass in the wind. Here’s the full article for free (also the...

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Basic Triangle

The triangle is the basic geometry that is used when rendering. All other shapes of geometry you want to draw must be divided into triangles. The triangle parts: Face, the triangle itself, the area is...

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