fog

[voxscape] / src / voxscape.h

diff --git a/src/voxscape.h b/src/voxscape.h
index 1bbb03a..9bd5164 100644 (file)
--- a/src/voxscape.h
+++ b/src/voxscape.h
@@ -5,13 +5,17 @@
 
 struct voxscape;
 
+#define VOX_RGB(r, g, b)       \
+       ((uint32_t)(r) | ((uint32_t)(g) << 8) | ((uint32_t)(b) << 16))
+
 struct voxscape *vox_create(int xsz, int ysz);
 struct voxscape *vox_open(const char *hfile, const char *cfile);
 void vox_free(struct voxscape *vox);
 
+void vox_fog(struct voxscape *vox, int zstart, uint32_t color);
 int vox_height(struct voxscape *vox, int32_t x, int32_t y);
 
-void vox_framebuf(struct voxscape *vox, int xres, int yres, uint32_t *fb);
+void vox_framebuf(struct voxscape *vox, int xres, int yres, uint32_t *fb, int horizon);
 /* negative height for auto at -h above terrain */
 void vox_view(struct voxscape *vox, int32_t x, int32_t y, int h, int32_t angle);
 void vox_proj(struct voxscape *vox, int fov, int znear, int zfar);
@@ -21,6 +25,7 @@ void vox_render(struct voxscape *vox);
 void vox_begin(struct voxscape *vox);
 void vox_render_slice(struct voxscape *vox, int n);
 
+void vox_sky_solid(struct voxscape *vox, uint32_t color);
 void vox_sky_grad(struct voxscape *vox, uint32_t chor, uint32_t ctop);
 
 #endif /* VOXSCAPE_H_ */