1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
/**************************************************************************/
/*  static_raycaster.h                                                    */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
/*                                                                        */
/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
/*                                                                        */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#ifndef STATIC_RAYCASTER_H
#define STATIC_RAYCASTER_H

#include "core/object/ref_counted.h"

#if !defined(__aligned)

#if defined(_WIN32) && defined(_MSC_VER)
#define __aligned(...) __declspec(align(__VA_ARGS__))
#else
#define __aligned(...) __attribute__((aligned(__VA_ARGS__)))
#endif

#endif

class StaticRaycaster : public RefCounted {
	GDCLASS(StaticRaycaster, RefCounted)
protected:
	static StaticRaycaster *(*create_function)();

public:
	// Compatible with embree4 rays.
	struct __aligned(16) Ray {<--- Skipping configuration '_MSC_VER;_WIN32;__aligned' since the value of '__aligned' is unknown. Use -D if you want to check it. You can use -U to skip it explicitly.<--- Skipping configuration '__aligned' since the value of '__aligned' is unknown. Use -D if you want to check it. You can use -U to skip it explicitly.
		const static unsigned int INVALID_GEOMETRY_ID = ((unsigned int)-1); // from rtcore_common.h

		/*! Default construction does nothing. */
		_FORCE_INLINE_ Ray() :<--- Member variable 'Ray::tnear' is not initialized in the constructor.<--- Member variable 'Ray::time' is not initialized in the constructor.<--- Member variable 'Ray::tfar' is not initialized in the constructor.<--- Member variable 'Ray::mask' is not initialized in the constructor.<--- Member variable 'Ray::id' is not initialized in the constructor.<--- Member variable 'Ray::flags' is not initialized in the constructor.<--- Member variable 'Ray::u' is not initialized in the constructor.<--- Member variable 'Ray::v' is not initialized in the constructor.<--- Member variable 'Ray::primID' is not initialized in the constructor.<--- Member variable 'Ray::instID' is not initialized in the constructor.
				geomID(INVALID_GEOMETRY_ID) {}

		/*! Constructs a ray from origin, direction, and ray segment. Near
		 *  has to be smaller than far. */
		_FORCE_INLINE_ Ray(const Vector3 &p_org,<--- Member variable 'Ray::id' is not initialized in the constructor.<--- Member variable 'Ray::flags' is not initialized in the constructor.
				const Vector3 &p_dir,
				float p_tnear = 0.0f,
				float p_tfar = INFINITY) :
				org(p_org),
				tnear(p_tnear),
				dir(p_dir),
				time(0.0f),
				tfar(p_tfar),
				mask(-1),
				u(0.0),
				v(0.0),
				primID(INVALID_GEOMETRY_ID),
				geomID(INVALID_GEOMETRY_ID),
				instID(INVALID_GEOMETRY_ID) {}

		/*! Tests if we hit something. */
		_FORCE_INLINE_ explicit operator bool() const { return geomID != INVALID_GEOMETRY_ID; }

	public:
		Vector3 org; //!< Ray origin + tnear
		float tnear; //!< Start of ray segment
		Vector3 dir; //!< Ray direction + tfar
		float time; //!< Time of this ray for motion blur.
		float tfar; //!< End of ray segment
		unsigned int mask; //!< used to mask out objects during traversal
		unsigned int id; //!< ray ID
		unsigned int flags; //!< ray flags

		Vector3 normal; //!< Not normalized geometry normal
		float u; //!< Barycentric u coordinate of hit
		float v; //!< Barycentric v coordinate of hit
		unsigned int primID; //!< primitive ID
		unsigned int geomID; //!< geometry ID
		unsigned int instID; //!< instance ID
	};

	virtual bool intersect(Ray &p_ray) = 0;
	virtual void intersect(Vector<Ray> &r_rays) = 0;

	virtual void add_mesh(const PackedVector3Array &p_vertices, const PackedInt32Array &p_indices, unsigned int p_id) = 0;
	virtual void commit() = 0;

	virtual void set_mesh_filter(const HashSet<int> &p_mesh_ids) = 0;
	virtual void clear_mesh_filter() = 0;

	static Ref<StaticRaycaster> create();
};

#endif // STATIC_RAYCASTER_H