lisyarus/psemek
1
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix gfx::light/dark: shouldn't affect color alpha

Browse source
This commit is contained in:
Nikita Lisitsa 2021-01-15 17:59:25 +03:00
parent 4f0b804656
commit e558799702
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
libs/gfx/include/psemek/gfx/color.hpp
View file

@ -105,7 +105,8 @@ namespace psemek::gfx
template <std::size_t N>
geom::vector<float, N> light(geom::vector<float, N> c, float lightness = 0.5f)
{
for (std::size_t i = 0; i < N; ++i)
static_assert(N == 3 || N == 4);
for (std::size_t i = 0; i < 3; ++i)
c[i] = geom::lerp(c[i], 1.f, lightness);
return c;
}
@ -113,7 +114,8 @@ namespace psemek::gfx
template <std::size_t N>
geom::vector<float, N> dark(geom::vector<float, N> c, float darkness = 0.5f)
{
for (std::size_t i = 0; i < N; ++i)
static_assert(N == 3 || N == 4);
for (std::size_t i = 0; i < 3; ++i)
c[i] = geom::lerp(c[i], 0.f, darkness);
return c;
}