GPUBlendComponent
operation: GPUBlendOperation= 'add'
GPUBlendOperation
'add', 'subtract', 'reverse-subtract', 'min', 'max'srcFactor: GPUBlendFactor= 'one'
GPUBlendFactor
'zero', 'one', 'src', 'one-minus-src', 'src-alpha', 'one-minus-src-alpha', 'dst', 'one-minus-dst', 'dst-alpha', 'one-minus-dst-alpha', 'src-alpha-saturated', 'constant', 'one-minus-constant'dstFactor: GPUBlendFactor= 'zero'
GPUBlendFactor
'zero', 'one', 'src', 'one-minus-src', 'src-alpha', 'one-minus-src-alpha', 'dst', 'one-minus-dst', 'dst-alpha', 'one-minus-dst-alpha', 'src-alpha-saturated', 'constant', 'one-minus-constant'