From 3f9906a918036dafbf0ff40f84e9cfaf383705e9 Mon Sep 17 00:00:00 2001
From: veclavtalica <veclavtalica@tutamail.com>
Date: Mon, 20 Jan 2025 19:29:57 +0300
Subject: [PATCH] remove fog start and fog end parameters

---
 apps/demos/scenery/scenes/ingame.c  | 5 ++---
 include/twn_context.h               | 2 +-
 share/twn_api.json                  | 2 --
 src/rendering/twn_gl_15_rendering.c | 2 --
 src/twn_loop.c                      | 1 -
 5 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/apps/demos/scenery/scenes/ingame.c b/apps/demos/scenery/scenes/ingame.c
index e3e14c9..2925ebe 100644
--- a/apps/demos/scenery/scenes/ingame.c
+++ b/apps/demos/scenery/scenes/ingame.c
@@ -13,7 +13,7 @@
 
 
 #define TERRAIN_FREQUENCY 0.15f
-#define TERRAIN_DISTANCE 32
+#define TERRAIN_DISTANCE 64
 #define HALF_TERRAIN_DISTANCE ((float)TERRAIN_DISTANCE / 2)
 #define PLAYER_HEIGHT 0.6f
 
@@ -225,8 +225,7 @@ static void ingame_tick(State *state) {
     draw_skybox("/assets/miramar/miramar_*.tga");
 
     ctx.fog_color = (Color){ 140, 147, 160, 255 };
-    ctx.fog_start = 0.9f;
-    ctx.fog_density = 0.05f;
+    ctx.fog_density = 0.03f;
 }
 
 
diff --git a/include/twn_context.h b/include/twn_context.h
index a057c45..8cdb342 100644
--- a/include/twn_context.h
+++ b/include/twn_context.h
@@ -24,7 +24,7 @@ typedef struct Context {
     float frame_duration;
 
     /* it is disabled by having fog_density approximately equal to zero */
-    float fog_start, fog_end, fog_density;
+    float fog_density;
     Color fog_color;
 
     /* resolution is set from config and dictates both logical and drawing space, as they're related */
diff --git a/share/twn_api.json b/share/twn_api.json
index 52010e2..59469fa 100644
--- a/share/twn_api.json
+++ b/share/twn_api.json
@@ -281,8 +281,6 @@
             "fields": [
                 { "name": "frame_number", "type": "float" },
                 { "name": "frame_duration", "type": "float" },
-                { "name": "fog_start", "type": "float" },
-                { "name": "fog_end", "type": "float" },
                 { "name": "fog_density", "type": "float" },
                 { "name": "fog_color", "type": "Color" },
                 { "name": "resolution", "type": "Vec2" },
diff --git a/src/rendering/twn_gl_15_rendering.c b/src/rendering/twn_gl_15_rendering.c
index 35e8913..f650d76 100644
--- a/src/rendering/twn_gl_15_rendering.c
+++ b/src/rendering/twn_gl_15_rendering.c
@@ -454,8 +454,6 @@ void finally_draw_command(DeferredCommandDraw command) {
         ctx.game_copy.fog_density = clampf(ctx.game_copy.fog_density, 0.0, 1.0);
 
         glFogf(GL_FOG_DENSITY, ctx.game_copy.fog_density);
-        glFogf(GL_FOG_START, ctx.game_copy.fog_start);
-        glFogf(GL_FOG_END, ctx.game_copy.fog_end);
 
         float color_conv[4];
         color_conv[0] = (float)ctx.game_copy.fog_color.r / UINT8_MAX;
diff --git a/src/twn_loop.c b/src/twn_loop.c
index c959d73..a812167 100644
--- a/src/twn_loop.c
+++ b/src/twn_loop.c
@@ -604,7 +604,6 @@ static bool initialize(void) {
     ctx.window_mouse_resident = true;
 
     ctx.game.fog_color = (Color){ 255, 255, 255, 255 }; /* TODO: pick some grey? */
-    ctx.game.fog_end = 1.0f;
 
     update_viewport();