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  2. Drybrush - Wikipedia

    en.wikipedia.org/wiki/Drybrush

    Drybrush is a painting technique in which a paint brush that is relatively dry, but still holds paint, is used to create a drawing or painting. Load is applied to a dry support such as paper or primed canvas .

  3. Gaussian blur - Wikipedia

    en.wikipedia.org/wiki/Gaussian_blur

    A halftone print rendered smooth through Gaussian blur. The Gaussian blur is a type of image-blurring filter that uses a Gaussian function (which also expresses the normal distribution in statistics) for calculating the transformation to apply to each pixel in the image.

  4. Bump mapping - Wikipedia

    en.wikipedia.org/wiki/Bump_mapping

    Bump mapping [1] is a texture mapping technique in computer graphics for simulating bumps and wrinkles on the surface of an object. This is achieved by perturbing the surface normals of the object and using the perturbed normal during lighting calculations. The result is an apparently bumpy surface rather than a smooth surface, although the ...

  5. Texture filtering - Wikipedia

    en.wikipedia.org/wiki/Texture_filtering

    During the texture mapping process for any arbitrary 3D surface, a texture lookup takes place to find out where on the texture each pixel center falls. For texture-mapped polygonal surfaces composed of triangles typical of most surfaces in 3D games and movies, every pixel (or subordinate pixel sample) of that surface will be associated with some triangle(s) and a set of barycentric coordinates ...

  6. Texture mapping - Wikipedia

    en.wikipedia.org/wiki/Texture_mapping

    Texture streaming is a means of using data streams for textures, where each texture is available in two or more different resolutions, as to determine which texture should be loaded into memory and used based on draw distance from the viewer and how much memory is available for textures. Texture streaming allows a rendering engine to use low ...

  7. Normal mapping - Wikipedia

    en.wikipedia.org/wiki/Normal_mapping

    However, object-space normal maps cannot be easily reused on multiple models, as the orientation of the surfaces differs. Since color texture maps can be reused freely, and normal maps tend to correspond with a particular texture map, it is desirable for artists that normal maps have the same property. A texture map (left).

  8. Blend modes - Wikipedia

    en.wikipedia.org/wiki/Blend_modes

    The Photoshop and illusions.hu flavors also produce the same result when the top layer is pure white (the differences between these two are in how one interpolates between these 3 results). These three results coincide with gamma correction of the bottom layer with γ=2 (for top black), unchanged bottom layer (or, what is the same, γ=1; for ...

  9. Image editing - Wikipedia

    en.wikipedia.org/wiki/Image_editing

    Image editors usually have a list of special effects that can create unusual results. Images may be skewed and distorted in various ways. Scores of special effects can be applied to an image which include various forms of distortion, artistic effects, geometric transforms and texture effects, [17] or combinations thereof.

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