33 lines
1018 B
Markdown
33 lines
1018 B
Markdown
---
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title: "Color Blend State"
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date: 2021-01-27T14:11:42-08:00
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weight: 1
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---
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Color blend state is comprised of three fields - a logical operation, whether that logical operation is enabled, and some blending constants.
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`LogicOp` lets you do a bitwise combination of the original and new color. You can read about that in more detail [over here](https://www.khronos.org/registry/vulkan/specs/1.2/html/chap28.html#framebuffer-logicop).
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`BlendConstants` are used by the blend factors to produce result colors. You can read about that [here](https://www.khronos.org/registry/vulkan/specs/1.2/html/chap28.html#framebuffer-blendconstants).
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Let's put it all together:
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```cs
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var myBlendConstants = new BlendConstants
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{
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R = 1f,
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G = 1f,
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B = 1f,
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A = 1f
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};
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var myColorBlendState = new ColorBlendState
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{
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LogicOpEnable = true,
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LogicOp = LogicOp.And,
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BlendConstants = myBlendConstants
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};
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```
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Further blending state control is provided in GraphicsPipelineAttachmentInfo, which will be discussed later.
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