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inc/lvgl/src/libs/gltf/math/lv_3dmath.h

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+/**
+ * @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*/