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SDL_BlendOperation

An enumeration of blend operations used when creating a custom blend mode with SDL_ComposeCustomBlendMode().

Values

SDL_BLENDOPERATION_ADD	additive operation
	dst + src
SDL_BLENDOPERATION_SUBTRACT	subtractive operation
	dst - src
SDL_BLENDOPERATION_REV_SUBTRACT	reversed subtractive operation
	src - dst
SDL_BLENDOPERATION_MINIMUM	minimum operation
	min(dst, src)
SDL_BLENDOPERATION_MAXIMUM	maximum operation
	max(dst, src)

Remarks

The blend operation takes place when the calculated pixels from a drawing operation (src) and the pixels from the render target (dst) get combined. Each component (red, green, blue, and alpha) is calculated separately. The result is then stored in the render target.

Some renderers may not support all operations. See SDL_ComposeCustomBlendMode() for a list of what the current renderers support.

Version

This enumeration is available since SDL 2.0.6.

Related Enumerations

SDL_BlendFactor

Related Functions

SDL_ComposeCustomBlendMode

SDL_SetRenderDrawBlendMode

SDL_SetTextureBlendMode

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CategoryEnum, CategoryRender, CategoryDraft

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