/** * @file lv_3dmath.h * */ #ifndef LV_3DMATH_H #define LV_3DMATH_H #ifdef __cplusplus extern "C" { #endif /********************* * INCLUDES *********************/ #include "../../../lv_conf_internal.h" #if LV_USE_GLTF /********************* * DEFINES *********************/ /********************** * TYPEDEFS **********************/ typedef struct { float x; float y; float z; } lv_3dpoint_t; typedef struct { float x; float y; float z; float w; } lv_quaternion_t; typedef struct { lv_3dpoint_t origin; lv_3dpoint_t direction; } lv_3dplane_t; typedef lv_3dplane_t lv_3dray_t; /********************** * GLOBAL PROTOTYPES **********************/ /** * Get a plane that faces upward, centered at a given height * @param elevation elevation of the ground plane, in world units. this is usually zero * @return ground plane */ lv_3dplane_t lv_get_ground_plane(float elevation); /********************** * MACROS **********************/ #endif /*LV_USE_GLTF*/ #ifdef __cplusplus } /*extern "C"*/ #endif #endif /*LV_3DMATH_H*/