02562 - Rendering - Worksheet 3, Part 4

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Scaling the texture coordinates affects large an area of the plane each repitition of the texture covers, or how many pixels each texel covers. The pixel subdivision level will smooth out the textured surface. If the filter mode is set to nearest, there is no real effect if the texture is magnified, only if it is minified. When using linear filtering the effect is also visible if the texture is magnified, blurring each texel more into each other. Increasing the pixel subdivision level will increase the blurring effect in all cases, though mostly visible when the texel size is far from the pixel size.