diff options
Diffstat (limited to 'builtin/common/misc_helpers.lua')
| -rw-r--r-- | builtin/common/misc_helpers.lua | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/builtin/common/misc_helpers.lua b/builtin/common/misc_helpers.lua index c2dc7514d..a495058d9 100644 --- a/builtin/common/misc_helpers.lua +++ b/builtin/common/misc_helpers.lua @@ -238,6 +238,43 @@ function math.sign(x, tolerance) end -------------------------------------------------------------------------------- +-- Video enums and pack function + +-- E_BLEND_FACTOR +minetest.ebf = { + zero = 0, -- src & dest (0, 0, 0, 0) + one = 1, -- src & dest (1, 1, 1, 1) + dst_color = 2, -- src (destR, destG, destB, destA) + one_minus_dst_color = 3, -- src (1-destR, 1-destG, 1-destB, 1-destA) + src_color = 4, -- dest (srcR, srcG, srcB, srcA) + one_minus_src_color = 5, -- dest (1-srcR, 1-srcG, 1-srcB, 1-srcA) + src_alpha = 6, -- src & dest (srcA, srcA, srcA, srcA) + one_minus_src_alpha = 7, -- src & dest (1-srcA, 1-srcA, 1-srcA, 1-srcA) + dst_alpha = 8, -- src & dest (destA, destA, destA, destA) + one_minus_dst_alpha = 9, -- src & dest (1-destA, 1-destA, 1-destA, 1-destA) + src_alpha_saturate = 10,-- src (min(srcA, 1-destA), idem, ...) +} + +-- E_MODULATE_FUNC +minetest.emfn = { + modulate_1x = 1, + modulate_2x = 2, + modulate_4x = 4, +} + +-- E_ALPHA_SOURCE +minetest.eas = { + none = 0, + vertex_color = 1, + texture = 2, +} + +-- BlendFunc = source * sourceFactor + dest * destFactor +function minetest.pack_texture_blend_func(srcFact, dstFact, modulate, alphaSource) + return alphaSource * 4096 + modulate * 256 + srcFact * 16 + dstFact +end + +-------------------------------------------------------------------------------- function get_last_folder(text,count) local parts = text:split(DIR_DELIM) |