added distance fog

[blank.git] / src / world.cpp

diff --git a/src/world.cpp b/src/world.cpp
index 7ab7fe486ec3af8a3d202580e35d47644f79bc22..f0d96f8d4e931f87077f47607d77d003322f2150 100644 (file)
--- a/src/world.cpp
+++ b/src/world.cpp
@@ -198,6 +198,11 @@ void World::Update(int dt) {
 
 void World::Render(DirectionalLighting &program) {
        program.SetLightDirection({ -1.0f, -3.0f, -2.0f });
+       // fade out reaches 1/e (0.3679) at 1/fog_density,
+       // gets less than 0.01 at e/(2 * fog_density)
+       // I chose 0.011 because it yields 91 and 124 for those, so
+       // slightly less than 6 and 8 chunks
+       program.SetFogDensity(0.011f);
        program.SetView(glm::inverse(player->Transform(player->ChunkCoords())));
 
        for (Chunk &chunk : chunks.Loaded()) {