35 lines
1.4 KiB
Markdown
35 lines
1.4 KiB
Markdown
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---
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title: "Sampler"
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date: 2021-01-25T20:48:35-08:00
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weight: 3
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---
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You might be familiar with the concept of "sampling" in music, where artists take a small segment of recorded music and recontextualize it in another work. Similarly, in graphics applications, sampling refers to the process of looking up segments of texture information in a shader so the data can be used.
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Samplers tell the renderer how upscaling or downscaling scenarios should be filtered. They can also cause the texture to repeat or mirror itself, among other possibilities.
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To create a sampler, define a `SamplerState` struct:
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```cs
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var mySamplerState = new SamplerState
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{
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MinFilter = Filter.Linear,
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MagFilter = Filter.Linear,
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MipmapMode = SamplerMipmapMode.Linear,
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AddressModeU = SamplerAddressMode.Repeat,
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AddressModeV = SamplerAddressMode.Repeat,
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AddressModeW = SamplerAddressMode.Repeat,
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CompareEnable = false,
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AnisotropyEnable = false,
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MipLodBias = 0f,
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MinLod = 0,
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MaxLod = 1000
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};
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var mySampler = new Sampler(GraphicsDevice, mySamplerState);
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```
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The same sampler can be used in conjunction with as many different textures as you like. We will discuss this more when we get into command buffers.
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There are some common `SamplerState`s that are provided for you, for example `SamplerState.PointClamp`. Have a look at the `SamplerState` definition to see them all.
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