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/*
   Copyright (c) 2014 DIVIDE-Studio
   Copyright (c) 2009 Ionut Cava

   This file is part of DIVIDE Framework.

   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 _CORE_MATH_BOUNDINGVOLUMES_BOUNDINGBOX_H_
#define _CORE_MATH_BOUNDINGVOLUMES_BOUNDINGBOX_H_

#include "Core/Math/Headers/Ray.h"
#include "Utility/Headers/GUIDWrapper.h"
#include <algorithm>

namespace Divide {

class BoundingBox : public GUIDWrapper {
public:

    BoundingBox();
    BoundingBox(const vec3<F32>& min, const vec3<F32>& max);
    BoundingBox(vectorImpl<vec3<F32> >& points);
    ~BoundingBox();

    BoundingBox(const BoundingBox& b);
    void operator=(const BoundingBox& b);

    bool ContainsPoint(const vec3<F32>& point) const;

    bool Collision(const BoundingBox& AABB2) const;

    bool Compare(const BoundingBox& bb) const;
    bool operator == (const BoundingBox& B) const;
    bool operator != (const BoundingBox& B) const;

    /// Optimized method
    bool Intersect(const Ray &r, F32 t0, F32 t1) const;

    void CreateFromPoints(vectorImpl<vec3<F32>>& points);

    void Add(const vec3<F32>& v);
    void Add(const BoundingBox& bb);

    void Translate(const vec3<F32>& v);

    void Multiply(F32 factor);
    void Multiply(const vec3<F32>& v);
    void MultiplyMax(const vec3<F32>& v);
    void MultiplyMin(const vec3<F32>& v);
   
    bool Transform(const BoundingBox& initialBoundingBox, const mat4<F32>& mat, bool force = false);

    void setComputed(bool state);
    bool isComputed() const;

    const vec3<F32>& getMin() const;
    const vec3<F32>& getMax() const;

    vec3<F32> getCenter() const;
    vec3<F32> getExtent() const;
    vec3<F32> getHalfExtent() const;

    F32 getWidth() const;
    F32 getHeight() const;
    F32 getDepth() const;

    void set(const BoundingBox& bb);
    void set(const vec3<F32>& min, const vec3<F32>& max);
    void setMin(const vec3<F32>& min);
    void setMax(const vec3<F32>& max);

    void reset();

    const vec3<F32>* getPoints() const;

    F32 nearestDistanceFromPointSquared(const vec3<F32> &pos) const;
    F32 nearestDistanceFromPoint(const vec3<F32> &pos) const;

protected:

    void ComputePoints() const;

private:
    bool _computed;
    vec3<F32> _min, _max;
    mat4<F32> _oldMatrix;

    // This is is very limited in scope so mutable should be ok
    mutable bool _pointsDirty;
    mutable vec3<F32> _points[8];
    mutable vec3<F32> _cacheVector;
};

}; //namespace Divide

#endif //_CORE_MATH_BOUNDINGVOLUMES_BOUNDINGBOX_H_

#include "BoundingBox.inl"

Commits for Divide-Framework/trunk/Source Code/Core/Math/BoundingVolumes/Headers/BoundingBox.h

Diff revisions: vs.
Revision Author Commited Message
337 Diff Diff IonutCava picture IonutCava Wed 17 Dec, 2014 17:25:16 +0000

[Ionut]
- Replaced all tabs with 4 spaces (some spacing may be off now. no way to check all the files.)
- Moved implementation details for ParamHandler, BoundingBox, BoundingSphere and ProfileTimer to proper .inl and .cpp files. (more to follow)
- Update all forward declared enums with the required storage type (as requested by the C++11 standard)

324 Diff Diff IonutCava picture IonutCava Sun 14 Sep, 2014 14:01:39 +0000

[Ionut]
- New memory management system (no custom allocators in this commit)
— Memory tracer to detect memory leaks on shutdown (from: https://www.relisoft.com/book/tech/9new.html)
— SAFE_DELETE_XYZ are now inline template functions not macros
— ASSERTION system now supports logging and message boxes and continue on error configurable for each build type
— Fixed a lot of memory leaks detected by the new system (some still remain)

- Added SRGB support (part 1)
— Albedo textures are loaded as SRGB (make sure resources are SRGB)
— Shaders output gamma corrected colors
— Moved terrain textures back to 2 array system (albedo and normal maps, albedo maps using a SRGB sampler)

- Sky is now loaded via the ResourceCache system
- Added include safeguards in shader atoms

322 Diff Diff IonutCava picture IonutCava Sat 06 Sep, 2014 20:33:47 +0000

[Ionut]
- Refactored most of Boost related code to be C++11 based
— Boost is only used for ThreadPool, Mutex handling, XML parsing and networking (ASIO)
— Function binds, threads, regex, NonCopyable base, Hashing algorithms and more are now using C++11 libraries
- Replaced all FOR_EACH calls with standard, range, “for” calls

318 Diff Diff IonutCava picture IonutCava Sat 30 Aug, 2014 17:35:53 +0000

[Ionut]
- Wrapped the entire code in a “Divide” namespace
- VertexBuffers now call “shrink_to_fit” on all internal data storage
- Improved some vector performance by preferring “emplace_back” instead of “push_back” + proepr usage of reserve / resize
- Wrapped OIS specific types and classes in Divide::Input namespace
- Added the messageBox.layout file (forgot it in the previous few commits)

307 Diff Diff IonutCava picture IonutCava Tue 12 Aug, 2014 19:45:12 +0000

[Ionut]
- More editor work:
— Per object skeleton rendering, bounding box rendering and shadow map toggling
— Full screen depth preview toggle
— Text entry based transforms

302 Diff Diff IonutCava picture IonutCava Wed 06 Aug, 2014 22:09:55 +0000

[Ionut]
- GenericVertexData buffer size (for read/write buffering) is now configurable instead of a fixed 3x and also applies to non-persistently mapped buffers
- Moved OpenGL enum tables to Divide::GLUtil::GL_ENUM_TABLE
- More code cleanups (glResources, glError, glVertexArray, glGenericVertexData, glIMPrimitive)

270 Diff Diff IonutCava picture IonutCava Thu 05 Jun, 2014 19:08:07 +0000

[Ionut][[BR]]
- SubMeshes now use a single vertex buffer (owned by the parent mesh) with proper offsetting and querying [[BR]]
— Implementation not optimal yet [[BR]]
- Cleaned up VertexBuffer related classes [[BR]]

264 Diff Diff k1ngp1n picture k1ngp1n Tue 27 May, 2014 13:04:38 +0000

[Ionut] [[BR]]
- New camera system: [[BR]]
— Stack based (push/pop active camera) [[BR]]
— Per camera frustum [[BR]]
— Per camera projection [[BR]]
— Shadow mapping now uses the new camera system (each light has a shadow camera) [[BR]]
[[BR]]
- New terrain, water and vegetation system: [[BR]]
— Direct import of terrain from L3DT both as 8-bit grayscale and 16-bit raw formats [[BR]]
— Multiple alpha maps for texture splatting support [[BR]]
— Per texture detail map support [[BR]]
— Transform feedback based visibility culling for vegetation [[BR]]
— Alpha-map based vegetation placing on terrain [[BR]]
— Water now uses a refraction map instead of alpha blending for better refraction effects [[BR]]
[[BR]]
- SceneGraph improvements: [[BR]]
— Better bounding box updates from child to parent [[BR]]
— Better onDraw / postDraw implementation [[BR]]
[[BR]]
- Performance improvements: [[BR]]
— Batch 2D rendering tasks together as much as possible[[BR]]
— Improve renderStateBlock hash generation for better sorting [[BR]]
— Move most state related gfx changes from API implementation to the GFXDevice class [[BR]]
— Move viewport stack to the GFXDevice class [[BR]]
— Added various performance counters (frame duration with round-robin query system, draw call count, etc) [[BR]]
— Fixed and improved clip plane management [[BR]]
— Delete client-side texture data after GPU upload [[BR]]
[[BR]]
- New features: [[BR]]
— Added callback support to the Task class so that a specific task may call a function in the main thread upon completion [[BR]]
— Added mouse-wheel zoom support to Orbit/ThirdPerson cameras [[BR]]
— Added 2D Texture Array support (e.g. used for terrain textures) [[BR]]

260 Diff Diff k1ngp1n picture k1ngp1n Sat 03 May, 2014 19:33:41 +0000

[Ionut] [[BR]]
- More work on CSM. Reverted back to VSM to allow easier blurring and filtering [[BR]]
- Rewrote FrameBuffer classes to fix MSAA and memory leaks that occurred on resize (double creation of textures) [[BR]]
— Removed FBType. FrameBuffer types depend only on attachment types and if it’s MSAA enabled or not [[BR]]
- Rewrote RenderState classes to be API agnostic [[BR]]
- Bug fixes in math classes [[BR]]
- Changed “resolution change” logic [[BR]]
- Simplified some options in config.xml [[BR]]
- Improved per-light shadow options [[BR]]

259 k1ngp1n picture k1ngp1n Sun 27 Apr, 2014 18:24:52 +0000

[Ionut][[BR]]
- Implemented Exponential Stable Cascaded Shadow Maps for directional lights (still buggy, but basically working) [[BR]]
— CSM settings (resolution, number of splits, etc) are part of the scene render state [[BR]]
- SGN can skip rendering for the current frame if they are not ready (e.g. OnDraw can now return false or materials can fail to bind) [[BR]]
- Frustum class is now using the Plane class [[BR]]
- Removed Math SIMD implementation as the compiler generated code will always be faster and safer [[BR]]
- Added a “STUBBED” macro for outputing to the error stream of important messages (instead of using #pragma message) [[BR]]
- Added “freeze time” logic to pause/resume updates with or without freezing the GUI too [[BR]]
- Added “processGUI” method the every Scene class to separate time-sensitive GUI updates from game logic loop [[BR]]
- GLSL <-> Vertex Buffer bind locations are automatically set for every vertex shader [[BR]]
- Added basic support for compute shaders [[BR]]
- Removed most OS define checks to make porting to a new platform easier [[BR]]
- Texture transparency check per-pixel is now using OpenMP [[BR]]
- Texture samplers can now set a border color for CLAMP_TO_BORDER wrap mode [[BR]]
- Removed “Object” suffix from GFX Classes (pixel buffer, vertex buffer, frame buffer, etc) [[BR]]
- Stop processing scene input when application looses focus [[BR]]
- SceneGraphNode class is now responsible for updating SGNComponents on draw and calling its _node’s OnDraw method [[BR]]
- UBOs can now list all of the active uniforms inside a block with info such as type and offset [[BR]]
- Removed deprecated ‘GLCheck’ macro [[BR]]
- A lot of bug fixes and performance improvements in various places [[BR]]