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Home Page: http://trillek.space
License: GNU Lesser General Public License v3.0
The Trillek Engine
Home Page: http://trillek.space
License: GNU Lesser General Public License v3.0
Actually we not are pruning anything to the render pipeline, and eventually we would need to not throw everything to the GPU rendering pipeline.
A first and easy optimization, is doing a view frustum culling. I have reading about doing it on GPU side with geometry shaders. Other way, is doing a collision test with the physic engine, against a box or a frustum that represents the view frustum, and only send to the GPU, the objects that are inside (I did this with BEPU with C#. But BEPU, have this implemented, so I only need to call the method and get a list of object that I need to render).
Other possible optimization is LOD. Here I have a lecture about using (again) shaders to do it on GPU, but on this case is done on OpenGL 4.0. I don't know if could be adapted to 3.3 : http://rastergrid.com/blog/2010/10/gpu-based-dynamic-geometry-lod/
Also, the voxel rendering need to fuse/prune no visible quads as it would give a abysmal rendering speed boost. I would try to put a lecture that I read a lot of time ago of a guy creating a voxel engine and doing this with a lot of explain of how does it.
I have a problem to run TEC (black screen):
Initializing voxel system...
[Shader] Error compiling shader : debug.vert : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error compiling shader : debug.frag : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error linking : error: linking with uncompiled shadererror: linking with uncompiled shader
[Shader] Error compiling shader : deferred_geometry.vert : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error compiling shader : deferred_geometry.frag : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error linking : error: linking with uncompiled shadererror: linking with uncompiled shader
[Shader] Error compiling shader : deferred_light.vert : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error compiling shader : deferred_pointlight.frag : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error linking : error: linking with uncompiled shadererror: linking with uncompiled shader
[Shader] Error compiling shader : deferred_light.vert : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error compiling shader : deferred_dirlight.frag : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error linking : error: linking with uncompiled shadererror: linking with uncompiled shader
[Shader] Error compiling shader : deferred_light.vert : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error compiling shader : deferred_pointlight.frag : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error linking : error: linking with uncompiled shadererror: linking with uncompiled shader
[Shader] Error compiling shader : deferred_shadow.vert : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error compiling shader : deferred_shadow.frag : 0:1(10): error: GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES
[Shader] Error linking : error: linking with uncompiled shadererror: linking with uncompiled shader
[Vorbis-Stream] Can't load file /home/ziggi/build/tec/assets/theme.ogg code 6 : Can't open file
This branch: https://github.com/Zardoz89/tec/tree/bullet_external
OpenGL version 3.0 Mesa 11.0.2 is supported
glew 1.13.0
This is a method to bundle up several components into an easy to use package. When a package is added to the world all components will be added to the active entity or, If needed, a new entity will be created.
I have some errors on linking stage:
../lib/libTEC_LIB.a(physics-system.cpp.o): In function `tec::PhysicsSystem::Update(double)':
physics-system.cpp:(.text+0xd31): undefined reference to `btRigidBody::setMassProps(double, btVector3 const&)'
../lib/libTEC_LIB.a(physics-system.cpp.o): In function `void __gnu_cxx::new_allocator<btCapsuleShape>::construct<btCapsuleShape, float&, float&>(btCapsuleShape*, float&, float&)':
physics-system.cpp:(.text._ZN9__gnu_cxx13new_allocatorI14btCapsuleShapeE9constructIS1_JRfS4_EEEvPT_DpOT0_[_ZN9__gnu_cxx13new_allocatorI14btCapsuleShapeE9constructIS1_JRfS4_EEEvPT_DpOT0_]+0x76): undefined reference to `btCapsuleShape::btCapsuleShape(double, double)'
../lib/libTEC_LIB.a(collisionbody.cpp.o):(.rodata._ZTV23btGImpactShapeInterface[_ZTV23btGImpactShapeInterface]+0x28): undefined reference to `btCollisionShape::getBoundingSphere(btVector3&, double&) const'
../lib/libTEC_LIB.a(collisionbody.cpp.o):(.rodata._ZTV23btGImpactShapeInterface[_ZTV23btGImpactShapeInterface]+0x38): undefined reference to `btCollisionShape::getContactBreakingThreshold(double) const'
collect2: error: ld returned 1 exit status
CMakeFiles/TEC.dir/build.make:137: recipe for target 'bin/TEC' failed
make[2]: *** [bin/TEC] Error 1
CMakeFiles/Makefile2:70: recipe for target 'CMakeFiles/TEC.dir/all' failed
make[1]: *** [CMakeFiles/TEC.dir/all] Error 2
Makefile:149: recipe for target 'all' failed
make: *** [all] Error 2
Specs:
We should have a continuous integration build on travis.ci for the OS X build and instructions in the README.
Unless they're very slow to generate and quite small or something, anyway.
We need a way of finding game assets and user configuration regardless of executable location and run directory.
A component that contains vital data for a character including, but not limited to:
This component would be used by the scripting system to determine if, for example, the character is alive or dead.
This involves the ability for a player to add, move, and remove entities to the world.
For this, engine systems will need to handle mouse click events and take appropriate action. Also editing widgets such as a rotation arc ball and translation cross-hair will need to be added as well.
Whe compiling TEC with gcc 5.x, two compiler warnings related to imgui are shown. In gcc 6.x, those are treated as errors, so this should be fixed soon.
/home/john/Documents/git/tec/client/main.cpp: In lambda function:
/home/john/Documents/git/tec/client/main.cpp:132:125: warning: converting 'false' to pointer type for argument 2 of 'bool ImGui::Begin(const char*, bool*, ImGuiWindowFlags)' [-Wconversion-null]
ImGui::Begin("Connect to Server", false, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse);
^
/home/john/Documents/git/tec/client/main.cpp: In lambda function:
/home/john/Documents/git/tec/client/main.cpp:258:176: warning: converting 'false' to pointer type for argument 2 of 'bool ImGui::Begin(const char*, bool*, ImGuiWindowFlags)' [-Wconversion-null]
ImGui::Begin("ping_times", false, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoInputs);
The following items need to be exposed to the scripting system in the form of an API, once a scripting system is integrated.
Add an unit test framework and the necessary stuff to handle it on cmake.
Cmake should search and use it, but only if is enabled the appropriate option.
I suggest keep using Google gtest, as we have it working on windows/Linux on the virtual computer module and on previous version of the engine.
Technically this is probably fine, but we'll want to use UDP instead of TCP for connecting to the game server as soon as possible and this will obviously break horrifically with UDP.
The goal is to have a playable game that implements a ship building that has computer controlable elements.
http://cdn.0x10cblog.org/wp-content/uploads/2012/11/0x10c-ship-editor.png is an example of what could exist for an editor.
Having cmake create projects to build the dependancies should be optional (off by default or at least via some form of check), so those that might already have it built in their system itself won't have to build local copies.
Actually we are creating all system object on the main and we not are storing it on any place. So if for example another system need to access another system (for example, the whole gui that now are on the main.cpp, could be his own system, and be a editor-gui-system, but need to access to imgui-system), could access this container.
For example on main, we could have a pre-game loop code like :
SystemContainer.init();
SystemContainer.addSystem("os", tec::OS os);
SystemContainer.addSystem("gui", tec::IMGUISystem gui( ((tec::OS)SystemContainer["os"]).GetWindow());
...
Perhaps we could implement it using multitone and with a ASystem abstract base class for all systems.
Multiple tracks per animation.
A quake like console would be nice. Not only would show a log of what the engine is doing (very useful!), But would have a simple command interpreter to execute a few commands or execute LUA scripts; and list/view/edit engine config variables (like full-screen mode, key-bindings, etc..) exactly like what does Quake or Doom consoles.
In specific dynamic implementations, tec::EventQueue might be stored and freed by anonymous superclass references, resulting in a memory leak unless tec::EventQueue::~EventQueue is made virtual.
After moving a certain amount of distance (and/or possibly time), player starts slowing down and almost stops, but then jumps back again after triple stutter.
Edit. Velocity seems to stay the same = 7, so maybe it's server problem ?
Also found another bug if you press D to move right, then pressing A before releasing D will result in a pause right after releasing D; same with W and S.
Not sure if this project is still active, but going to give my 2 cents anyway.
I know how a programmer feels about C++11, great amazing stuff introduced, better ways of developing software and stuff, but often you don't need those features. Let's say we have a Multiton (not that I like this patter in this context) as a global variable, using a shared_ptr inside it's bad. That's because the map (I don't see any reason to not use unordered_map, tbh) will always own it and even if all other pointers to it are freed the resource won't get freed. This makes the reference count a useless overhead.
The best solution, I think, is to just use a owning ptr, i.e. unique_ptr, and pass around non owning ptr, i.e. raw pointers (or references if you really don't like them).
Or if you feel so you can use weak_ptrs and a custom deallocator (you have to remove weak_ptrs from the map when they aren't needed anymore), but still think about who'll own the memory.
The ability to create, modify, and choose from different materials and then apply them on a per-vertex-group basis.
This will be used for players to "paint" entities they place. The material would presumably be in an inventory that players would pick from, click on the target entity, and the server would store the material used by the entity.
A system (could be done in scripting) that dictates the level of oxygen, temperature, etc of a given region. The system would iterate over all entities within its region and modify that entity's vital component to adjust its corresponding stat. E.g if the O2 goes down in the room the entity's vital component O2 stat would decrease.
Before 2017, it would be nice to get explicit years out of each individual file. It creates messy difficult to understand history to update every file in the repository.
Yearly commit should look like this: freebsd/freebsd-src@0219f2b
Not like this: 66d4074
Support for building and running on OS X.
These are points, in model space, that entities and such (wires) can be attached to, on an entity.
The attachment will consist of the attachment point list and an entity id or similar to track what it is attached to any given point.
These points will be stored in some form of list or vector that can be iterated over in order to find the closest match for example a mouse click.
Instead of just assigning the component to the new value, only data that was changed should be updated. This will prevent loss of state and reduce object creation.
Entity::Update() could take a bitset saying what data was updated and passing that to the component in some useful way. This might require components to provide an update function in the form of a lambda.
From @ziggi on October 3, 2015 20:40 -> issue #58
I got segfault.
GDB result:
Program received signal SIGSEGV, Segmentation fault.
0x0000000000981bbd in tec::RenderSystem::PointLightPass (this=0x7ffffffe4140)
at /home/ziggi/build/tec/src/render-system.cpp:258
258 size_t index_count = this->sphere_vbo.GetVertexGroup(0)->index_count;
Copied from original issue: #58
These include commands lime set velocity/gravity, set position/orientation, and disable/enable.
Add a default embed PixelBuffer and Texture, so the engine not crash if there is a missing texture. The default texture could be a checker texture like : https://svn.ict.usc.edu/svn_vh_public/trunk/lib/OgreSDK/media/materials/textures/checker.png or something like this :
Could be (Pseudocode) :
On RenderSystem subsystem init :
...
{
std::uint8_t tmp_buff = {
#include "default_texture.hpp" // Carmack's trick . Contains a 128x128x1 bytes of monocrome texture data
};
PixelBuffer default_pbuffer(128, 128, 8, ImageColorMode::MONOCHROME );
std::copy_n(tmp_buff, sizeof(tmp_buff), default_pbuffer.LockWrite());
default_pbuffer.UnlockWrite()
PixelBufferMap.Default(default_pbuffer);
TextureObject default_texture(PixelBufferMap.Default());
TextureMap.Default(default_texture);
}
...
As per a talk with paultech bullet debug draw will be extraordinarily helpful and is quite easy to implement.
"virtual void drawLine( const btVector3 &from, const btVector3 &to, const btVector3 &color );
just interheit from btIDebugDraw"
Drawing and updating power and data wires between components that have appropriate ports for said wires.
Depends on #37 attachment.
Clicking on an attachment point that is compatible begins a connection action. Clicking on another compatible attachment point ends the connection action and creates a connection. Canceling the connection action should end the connection action.
This "link" will need to be saved as a component for both entities and have an identifier that describes the target attachment point.
For this is work entity class will need a static map for out stream lambdas for each added component. The lambda should take a stream and will allow type erasure so all lambdas can be stored in the same map.
std::map<eid, [] (stream) {}> component_out_streams; // Potential signature
GLEW has several annoying bugs and issues with binary builds. We should replace it with a different extension loader, for example gl3w or glad.
l updated cmake to 3.2.2 (from there https://launchpad.net/~george-edison55/+archive/ubuntu/cmake-3.x), a cmake version higher than 3.1 should also work, shouldn't it?
Here's the error message:
[ 10%] Built target VCOMPUTER_STATIC
[ 59%] Built target libprotobuf
[ 68%] Built target glfw
[ 73%] Built target Bullet
[ 75%] Building CXX object CMakeFiles/TEC_LIB.dir/src/vcomputer-system.cpp.o
tec/src/vcomputer-system.cpp: In member function 'void tec::Computer::In(const tec::proto::Component&)':
tec/src/vcomputer-system.cpp:39:37: error: 'make_unique' is not a member of 'std'
std::unique_ptr<TR3200> trcpu = std::make_unique<TR3200>();
^
tec/src/vcomputer-system.cpp:39:60: error: expected primary-expression before '>' token
std::unique_ptr<TR3200> trcpu = std::make_unique<TR3200>();
^
tec/src/vcomputer-system.cpp:39:62: error: expected primary-expression before ')' token
std::unique_ptr<TR3200> trcpu = std::make_unique<TR3200>();
^
make[3]: *** [CMakeFiles/TEC_LIB.dir/src/vcomputer-system.cpp.o] Error 1
make[2]: *** [CMakeFiles/TEC_LIB.dir/all] Error 2
make[1]: *** [CMakeFiles/TEC.dir/rule] Error 2
make: *** [TEC] Error 2
Currently the client uses a lot of CPU power without doing much.
On my system, it uses 100% of one CPU thread.
This is inconvenient especially for mobile systems with batteries, where economical CPU usage matters.
Most of these are fairly harmless and can be fixed with a few scattered static_cast<>
s, but some might be more serious and it's hard to tell when there's so many of them.
Window resizing needs min/max size checking and to make it ratio based.
Right now the src
directory still contains things specific to the client only, and the build system is very monolithic with one central CMakeLists.txt
file in the root directory. We should move the remaining client-specific code to client/
, and create client/CMakeLists.txt
and server/CMakeLists.txt
files that take care of building only the client or the server, respectively.
GLM is utilized but never referenced in cmake. Consequently, I'm not sure what version you're using (and it seems some things tec is using are deprecated in the latest version.)
Looks that spdlog clash badly with ASIO. ASIO have a higher priority over spdlog, so would be necessary try to fix spdlog or replace it.
List of requisites that should have a logger for us :
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