(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_GPUBlendFactor

Specifies a blending factor to be used when pixels in a render target are blended with existing pixels in the texture.

Header File

Defined in <SDL3/SDL_gpu.h>

Syntax

typedef enum SDL_GPUBlendFactor
{
    SDL_GPU_BLENDFACTOR_INVALID,
    SDL_GPU_BLENDFACTOR_ZERO,                      /**< 0 */
    SDL_GPU_BLENDFACTOR_ONE,                       /**< 1 */
    SDL_GPU_BLENDFACTOR_SRC_COLOR,                 /**< source color */
    SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_COLOR,       /**< 1 - source color */
    SDL_GPU_BLENDFACTOR_DST_COLOR,                 /**< destination color */
    SDL_GPU_BLENDFACTOR_ONE_MINUS_DST_COLOR,       /**< 1 - destination color */
    SDL_GPU_BLENDFACTOR_SRC_ALPHA,                 /**< source alpha */
    SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA,       /**< 1 - source alpha */
    SDL_GPU_BLENDFACTOR_DST_ALPHA,                 /**< destination alpha */
    SDL_GPU_BLENDFACTOR_ONE_MINUS_DST_ALPHA,       /**< 1 - destination alpha */
    SDL_GPU_BLENDFACTOR_CONSTANT_COLOR,            /**< blend constant */
    SDL_GPU_BLENDFACTOR_ONE_MINUS_CONSTANT_COLOR,  /**< 1 - blend constant */
    SDL_GPU_BLENDFACTOR_SRC_ALPHA_SATURATE         /**< min(source alpha, 1 - destination alpha) */
} SDL_GPUBlendFactor;

Remarks

The source color is the value written by the fragment shader. The destination color is the value currently existing in the texture.

Version

This enum is available since SDL 3.1.3

See Also

• SDL_CreateGPUGraphicsPipeline

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CategoryAPI, CategoryAPIEnum, CategoryGPU

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