2009-12-20 19:41:50 -08:00
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.. _sampler:
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2009-12-20 15:00:40 -08:00
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Sampler
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=======
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Texture units have many options for selecting texels from loaded textures;
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this state controls an individual texture unit's texel-sampling settings.
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2009-12-20 16:40:39 -08:00
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Texture coordinates are always treated as four-dimensional, and referred to
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with the traditional (S, T, R, Q) notation.
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2009-12-20 15:00:40 -08:00
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Members
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-------
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2009-12-20 16:40:39 -08:00
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XXX undocumented compare_mode, compare_func
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wrap_s
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How to wrap the S coordinate. One of PIPE_TEX_WRAP.
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wrap_t
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How to wrap the T coordinate. One of PIPE_TEX_WRAP.
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wrap_r
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How to wrap the R coordinate. One of PIPE_TEX_WRAP.
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min_img_filter
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The filter to use when minifying texels. One of PIPE_TEX_FILTER.
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min_mip_filter
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The filter to use when minifying mipmapped textures. One of
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PIPE_TEX_FILTER.
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mag_img_filter
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The filter to use when magnifying texels. One of PIPE_TEX_FILTER.
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normalized_coords
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Whether the texture coordinates are normalized. If normalized, they will
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always be in [0, 1]. If not, they will be in the range of each dimension
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of the loaded texture.
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prefilter
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XXX From the Doxy, "weird sampling state exposed by some APIs." Refine.
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lod_bias
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The bias to apply to the level of detail.
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min_lod
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Minimum level of detail, used to clamp LoD after bias.
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max_lod
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Maximum level of detail, used to clamp LoD after bias.
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border_color
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RGBA color used for out-of-bounds coordinates.
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max_anisotropy
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Maximum filtering to apply anisotropically to textures. Setting this to
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1.0 effectively disables anisotropic filtering.
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