3d: smooth terrain light, hills uses fog and mips

1 files changed, 9 insertions, 1 deletions

diff --git a/examples/hills.c b/examples/hills.c
index c56ab70..a6f36c5 100644
--- a/examples/hills.c
+++ b/examples/hills.c
@@ -22,6 +22,7 @@
 #define SIZE 128
 #define MARKERS 24
 #define BRUSH 3.0f
+#define FOG_END 80.0f
 
 #define COL_SKY 0xFF1B1826u
 #define COL_DIM 0xFF9A93B3u
@@ -35,6 +36,7 @@ typedef struct state {
 	kon_terrain_t *terrain;
 	kon_material_t grass;
 	kon_image *ground, *marker;
+	kon_mipmaps_t *mips;
 	kon_fp_t fp;
 	int raise, lower;
 	double time;
@@ -82,6 +84,9 @@ static void draw(kon_program_t *program, kon_framebuffer_t *game, void *user)
 	kon_clearFramebuffer(game, COL_SKY);
 	light.direction = KON_VEC3(-0.4f, -1.0f, -0.3f);
 	light.ambient = 0.45f;
+	light.fogColor = COL_SKY;
+	light.fogStart = 25.0f;
+	light.fogEnd = FOG_END;
 	kon_drawTerrain(game, &camera, state->terrain, &light);
 
 	for (i = 0; i < MARKERS; i++) {
@@ -151,6 +156,8 @@ static int init(kon_program_t *program, void *user)
 		}
 	}
 	state->grass = kon_materialTexture(state->ground);
+	state->mips = kon_createMipmaps(state->ground);
+	state->grass.mips = state->mips;
 	state->terrain->material = &state->grass;
 
 	state->map.columns = SIZE;
@@ -172,7 +179,7 @@ static int init(kon_program_t *program, void *user)
 	}
 
 	kon_fpInit(&state->fp, &state->map, SIZE / 2, SIZE / 2);
-	state->fp.farZ = 90.0f;
+	state->fp.farZ = FOG_END;
 	kon_fpPlace(&state->fp, &state->map, state->terrain);
 	kon_fpDebug(&state->fp, program->debug);
 	kon_terrainDebug(state->terrain, program->debug);
@@ -185,6 +192,7 @@ static void shutdown(kon_program_t *program, void *user)
 
 	(void)program;
 	kon_terrainFree(state->terrain);
+	kon_freeMipmaps(state->mips);
 	kon_freeFramebuffer(state->ground);
 	kon_freeFramebuffer(state->marker);
 }