Implemented bounding box visualization in editor

src/game/bounding_volumes.c

@@ -203,3 +203,46 @@ void bv_bounding_box_vertices_get(struct Bounding_Box* bounding_box, vec3 out_ve
 	vec3_fill(&out_vertices[6], bounding_box->max.x, bounding_box->min.y, bounding_box->max.z);
 	vec3_fill(&out_vertices[7], bounding_box->max.x, bounding_box->max.y, bounding_box->min.z);
 }
+
+void bv_bounding_box_vertices_get_line_visualization(struct Bounding_Box* bounding_box, vec3 out_vertices[24])
+{
+	// Back
+	vec3_fill(&out_vertices[0], bounding_box->min.x, bounding_box->min.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[1], bounding_box->min.x, bounding_box->max.y, bounding_box->min.z);
+
+	vec3_fill(&out_vertices[2], bounding_box->min.x, bounding_box->min.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[3], bounding_box->max.x, bounding_box->min.y, bounding_box->min.z);
+
+	vec3_fill(&out_vertices[4], bounding_box->min.x, bounding_box->max.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[5], bounding_box->max.x, bounding_box->max.y, bounding_box->min.z);
+
+	vec3_fill(&out_vertices[6], bounding_box->max.x, bounding_box->max.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[7], bounding_box->max.x, bounding_box->min.y, bounding_box->min.z);
+
+	// Front
+	vec3_fill(&out_vertices[8], bounding_box->min.x, bounding_box->min.y, bounding_box->max.z);
+	vec3_fill(&out_vertices[9], bounding_box->min.x, bounding_box->max.y, bounding_box->max.z);
+
+	vec3_fill(&out_vertices[10], bounding_box->min.x, bounding_box->min.y, bounding_box->max.z);
+	vec3_fill(&out_vertices[11], bounding_box->max.x, bounding_box->min.y, bounding_box->max.z);
+	
+	vec3_fill(&out_vertices[12], bounding_box->min.x, bounding_box->max.y, bounding_box->max.z);
+	vec3_fill(&out_vertices[13], bounding_box->max.x, bounding_box->max.y, bounding_box->max.z);
+
+	vec3_fill(&out_vertices[14], bounding_box->max.x, bounding_box->max.y, bounding_box->max.z);
+	vec3_fill(&out_vertices[15], bounding_box->max.x, bounding_box->min.y, bounding_box->max.z);
+
+	// Left
+	vec3_fill(&out_vertices[16], bounding_box->min.x, bounding_box->max.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[17], bounding_box->min.x, bounding_box->max.y, bounding_box->max.z);
+	
+	vec3_fill(&out_vertices[18], bounding_box->min.x, bounding_box->min.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[19], bounding_box->min.x, bounding_box->min.y, bounding_box->max.z);
+
+	// Right
+	vec3_fill(&out_vertices[20], bounding_box->max.x, bounding_box->min.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[21], bounding_box->max.x, bounding_box->min.y, bounding_box->max.z);
+	
+	vec3_fill(&out_vertices[22], bounding_box->max.x, bounding_box->max.y, bounding_box->min.z);
+	vec3_fill(&out_vertices[23], bounding_box->max.x, bounding_box->max.y, bounding_box->max.z);
+}

src/game/bounding_volumes.h

@@ -53,9 +53,9 @@ int   bv_intersect_frustum_box(vec4* frustum, struct Bounding_Box* box, vec3* bo
 int   bv_intersect_frustum_box_(vec4* frustum, struct Bounding_Box* box);
 int   bv_intersect_frustum_sphere(vec4* frustum, struct Bounding_Sphere* sphere, vec3* sphere_abs_pos, vec3* sphere_abs_scale);
 bool  bv_intersect_frustum_point(vec4* frustum, const vec3* point);
-//bool  bv_intersect_sphere_ray(struct Bounding_Sphere* sphere, vec3* sphere_abs_position, struct Ray* ray);
-int bv_intersect_sphere_ray(struct Bounding_Sphere* sphere, vec3* sphere_abs_position, vec3* sphere_abs_scale, struct Ray* ray);
+int   bv_intersect_sphere_ray(struct Bounding_Sphere* sphere, vec3* sphere_abs_position, vec3* sphere_abs_scale, struct Ray* ray);
 float bv_distance_ray_plane(struct Ray* ray, Plane* plane);
 void  bv_bounding_box_vertices_get(struct Bounding_Box* box, vec3 out_vertices[8]);
+void  bv_bounding_box_vertices_get_line_visualization(struct Bounding_Box* bounding_box, vec3 out_vertices[24]);
 
 #endif

src/game/editor.c

@@ -249,24 +249,10 @@ void editor_render(struct Editor* editor, struct Camera * active_camera)
 		}
 		
 		/* Draw bounding box for selected entity */
-		vec3 points[8];
-		bv_bounding_box_vertices_get(&editor->selected_entity->transform.bounding_box, points);
-		
-		//struct Geometry* geom = geom_get(((struct Static_Mesh*)editor->selected_entity)->model.geometry_index);
-		//bv_bounding_box_vertices_get(&geom->bounding_box, points);
-		vec3 abs_position = { 0.f, 0.f, 0.f };
-		transform_get_absolute_position(editor->selected_entity, &abs_position);
-		vec3 scale = { 0.f, 0.f, 0.f };
-		scale.x = editor->selected_entity->transform.bounding_box.max.x - editor->selected_entity->transform.bounding_box.min.x;
-		scale.y = editor->selected_entity->transform.bounding_box.max.y - editor->selected_entity->transform.bounding_box.min.y;
-		scale.z = editor->selected_entity->transform.bounding_box.max.z - editor->selected_entity->transform.bounding_box.min.z;
-		vec3_scale(&scale, &scale, 0.5f);
-		//vec3_sub(&abs_position, &abs_position, &scale);
-		im_box(fabsf(scale.x), fabsf(scale.y), fabsf(scale.z), abs_position, (quat) { 0.f, 0.f, 0.f, 1.f }, editor->cursor_entity_color, GDM_TRIANGLES, 3);
-		im_begin((vec3) { 0.f, 0.f, 0.f }, (quat) { 0.f, 0.f, 0.f, 1.f }, (vec3) { 1.f, 1.f, 1.f }, (vec4) { 1.f, 0.f, 1.f, 1.2f }, GDM_LINE_LOOP, 3);
-		for(int i = 0; i < 8; i++)
-			im_pos(points[i].x, points[i].y, points[i].z);
-		im_end();
+		static vec3 vertices[24];
+		bv_bounding_box_vertices_get_line_visualization(&editor->selected_entity->transform.bounding_box, vertices);
+		for(int i = 0; i <= 22; i += 2)
+			im_line(vertices[i], vertices[i + 1], (vec3) { 0.f, 0.f, 0.f }, (quat) { 0.f, 0.f, 0.f, 1.f }, editor->cursor_entity_color, GDM_LINES);
 
 		/* Draw selected entity with projected transformation applied  */
 		if(editor->draw_cursor_entity)

todo.txt

@@ -1,5 +1,4 @@
 Todo:
-	- Implement bounding box visualization
 	- Fix rotation gizmo for scaled meshes
 	- Implement ray-bounding box picking and determine whether that is enough for our needs or do we need to implement OBB
 	- Command to create a placeholder entity of a particular type in a file
@@ -401,3 +400,4 @@ Done:
 	* Implement resetting complete transform or just rotation, translation
 	  or scale for selected entity
 	* Save transformation information when saving entity archetypes
+	* Implement bounding box visualization