diff options
| -rw-r--r-- | minetest.conf.example | 6 | ||||
| -rw-r--r-- | src/defaultsettings.cpp | 2 | ||||
| -rw-r--r-- | src/mapblock_mesh.cpp | 12 |
3 files changed, 15 insertions, 5 deletions
diff --git a/minetest.conf.example b/minetest.conf.example index 0b137c5a2..e1d880d83 100644 --- a/minetest.conf.example +++ b/minetest.conf.example @@ -216,6 +216,11 @@ # Set to true enables waving plants. Requires shaders enabled. #enable_waving_plants = false # Enables caching of facedir rotated meshes +#ambient_occlusion_gamma = 2.2 +# The strength (darkness) of node ambient-occlusion shading. +# Lower is darker, Higher is lighter. The valid range of values for this +# setting is 0.25 to 4.0 inclusive. If the value is out of range it will be +# set to the nearest valid value. #enable_mesh_cache = true # The time in seconds it takes between repeated # right clicks when holding the right mouse button. @@ -548,4 +553,3 @@ # Noise parameters for biome API temperature and humidity #mg_biome_np_heat = 50, 50, (500, 500, 500), 5349, 3, 0.5, 2.0 #mg_biome_np_humidity = 50, 50, (500, 500, 500), 842, 3, 0.5, 2.0 - diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp index 4fb99cd55..6504c5155 100644 --- a/src/defaultsettings.cpp +++ b/src/defaultsettings.cpp @@ -159,6 +159,7 @@ void set_default_settings(Settings *settings) settings->setDefault("water_wave_speed", "5.0"); settings->setDefault("enable_waving_leaves", "false"); settings->setDefault("enable_waving_plants", "false"); + settings->setDefault("ambient_occlusion_gamma", "2.2"); settings->setDefault("enable_shaders", "true"); settings->setDefault("repeat_rightclick_time", "0.25"); settings->setDefault("enable_particles", "true"); @@ -346,4 +347,3 @@ void override_default_settings(Settings *settings, Settings *from) settings->setDefault(name, from->get(name)); } } - diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp index 0e5a883f2..8afca73a5 100644 --- a/src/mapblock_mesh.cpp +++ b/src/mapblock_mesh.cpp @@ -288,9 +288,15 @@ static u16 getSmoothLightCombined(v3s16 p, MeshMakeData *data) if (ambient_occlusion > 4) { - //table of precalculated gamma space multiply factors - //light^2.2 * factor (0.75, 0.5, 0.25, 0.0), so table holds factor ^ (1 / 2.2) - static const float light_amount[4] = { 0.877424315, 0.729740053, 0.532520545, 0.0 }; + static const float ao_gamma = rangelim( + g_settings->getFloat("ambient_occlusion_gamma"), 0.25, 4.0); + + // Table of gamma space multiply factors. + static const float light_amount[3] = { + powf(0.75, 1.0 / ao_gamma), + powf(0.5, 1.0 / ao_gamma), + powf(0.25, 1.0 / ao_gamma) + }; //calculate table index for gamma space multiplier ambient_occlusion -= 5; |