// Copyright (c) 2014-2016 Khronos Group. This work is licensed under a // Creative Commons Attribution 4.0 International License; see // http://creativecommons.org/licenses/by/4.0/ VkBlendFactor(3) ================ Name ---- VkBlendFactor - framebuffer blending factors C Specification --------------- // refBegin VkBlendFactor framebuffer blending factors The source and destination color and alpha blending factors are selected from the enum: include::../enums/VkBlendFactor.txt[] Description ----------- The semantics of each enum value is described in the table below: .Blend Factors [width="100%",options="header",align="center",cols="59%,28%,13%"] |======================================== |VkBlendFactor | RGB Blend Factors (latexmath:[$S_r,S_g,S_b$]) or (latexmath:[$D_r,D_g,D_b$]) | Alpha Blend Factor (latexmath:[$S_a$] or latexmath:[$D_a$]) |ename:VK_BLEND_FACTOR_ZERO | latexmath:[$(0,0,0)$] | latexmath:[$0$] |ename:VK_BLEND_FACTOR_ONE | latexmath:[$(1,1,1)$] | latexmath:[$1$] |ename:VK_BLEND_FACTOR_SRC_COLOR | latexmath:[$(R_{s0},G_{s0},B_{s0})$] | latexmath:[$A_{s0}$] |ename:VK_BLEND_FACTOR_ONE_MINUS_SRC_COLOR | latexmath:[$(1-R_{s0},1-G_{s0},1-B_{s0})$] | latexmath:[$1-A_{s0}$] |ename:VK_BLEND_FACTOR_DST_COLOR | latexmath:[$(R_d,G_d,B_d)$] | latexmath:[$A_d$] |ename:VK_BLEND_FACTOR_ONE_MINUS_DST_COLOR | latexmath:[$(1-R_d,1-G_d,1-B_d)$] | latexmath:[$1-A_d$] |ename:VK_BLEND_FACTOR_SRC_ALPHA | latexmath:[$(A_{s0},A_{s0},A_{s0})$] | latexmath:[$A_{s0}$] |ename:VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA | latexmath:[$(1-A_{s0},1-A_{s0},1-A_{s0})$] | latexmath:[$1-A_{s0}$] |ename:VK_BLEND_FACTOR_DST_ALPHA | latexmath:[$(A_d,A_d,A_d)$] | latexmath:[$A_d$] |ename:VK_BLEND_FACTOR_ONE_MINUS_DST_ALPHA | latexmath:[$(1-A_d,1-A_d,1-A_d)$] | latexmath:[$1-A_d$] |ename:VK_BLEND_FACTOR_CONSTANT_COLOR | latexmath:[$(R_c,G_c,B_c)$] | latexmath:[$A_c$] |ename:VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_COLOR | latexmath:[$(1-R_c,1-G_c,1-B_c)$] | latexmath:[$1-A_c$] |ename:VK_BLEND_FACTOR_CONSTANT_ALPHA | latexmath:[$(A_c,A_c,A_c)$] | latexmath:[$A_c$] |ename:VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_ALPHA | latexmath:[$(1-A_c,1-A_c,1-A_c)$] | latexmath:[$1-A_c$] |ename:VK_BLEND_FACTOR_SRC_ALPHA_SATURATE | latexmath:[$(f,f,f); f=\min(A_{s0},1-A_d)$] | latexmath:[$1$] |ename:VK_BLEND_FACTOR_SRC1_COLOR | latexmath:[$(R_{s1},G_{s1},B_{s1})$] | latexmath:[$A_{s1}$] |ename:VK_BLEND_FACTOR_ONE_MINUS_SRC1_COLOR | latexmath:[$(1-R_{s1},1-G_{s1},1-B_{s1})$] | latexmath:[$1-A_{s1}$] |ename:VK_BLEND_FACTOR_SRC1_ALPHA | latexmath:[$(A_{s1},A_{s1},A_{s1})$] | latexmath:[$A_{s1}$] |ename:VK_BLEND_FACTOR_ONE_MINUS_SRC1_ALPHA | latexmath:[$(1-A_{s1},1-A_{s1},1-A_{s1})$] | latexmath:[$1-A_{s1}$] |======================================== In this table, the following conventions are used: - latexmath:[$R_{s0},G_{s0},B_{s0}$] and latexmath:[$A_{s0}$] represent the first source color R, G, B, and A components, respectively, for the fragment output location corresponding to the color attachment being blended. - latexmath:[$R_{s1},G_{s1},B_{s1}$] and latexmath:[$A_{s1}$] represent the second source color R, G, B, and A components, respectively, used in dual source blending modes, for the fragment output location corresponding to the color attachment being blended. - latexmath:[$R_d,G_d,B_d$] and latexmath:[$A_d$] represent the R, G, B, and A components of the destination color. That is, the color currently in the corresponding color attachment for this fragment/sample. - latexmath:[$R_c,G_c,B_c$] and latexmath:[$A_c$] represent the blend constant R, G, B, and A components, respectively. // refEnd VkBlendFactor See Also -------- slink:VkPipelineColorBlendAttachmentState Document Notes -------------- For more information, see the Vulkan Specification at URL https://www.khronos.org/registry/vulkan/specs/1.0/xhtml/vkspec.html#VkBlendFactor This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification,not directly. include::footer.txt[]