Sdk game tutorial

Today this is no longer the case, but you can find them instead by opening Android Studio and navigating to File — New — Import Sample. You may wish to use another IDE Integrated Development Environment , for instance if you want to streamline the process of making a 3D game in which case, you may wish to use Unity or Unreal , or if you are interested in cross platform mobile development in which case you might use Xamarin. You can also find the location of the Android SDK in Android Studio, in case you should ever need to move it, or just for your own reference.

Just go to File — Project Structure. Be aware that this folder is hidden on Windows by default, so you might have a hard time finding it. This gives you access to certain libraries and can help to squeeze a little more performance out of a device — making it useful for game development, among other things. As mentioned, if it is just the SDK you are interested in, then you can download this on its own by visiting the downloads page and then choosing to include the sdkmanager.

This will allow you to update the SDK through the command line. But for the vast majority of users, it makes a lot more sense to install the full suite and enjoy the graphical interface and other conveniences — even if you intend on using a different IDE for development. And this is the really good news: Android development is now easier than ever before thanks to the leaps and bounds that Google has made with Android Studio.

There was a time when setting everything up was considerably more complex. There has never been a better time to start Android development! Discover what's included and how to use it. By Alex Mullis. Read our tutorials or view or video tutorials for detailed instructions for building basic scenes. To see our official example scenes, with links to their code, see scene examples. You can also post to Stack Overflow , using the tags decentraland or decentraland-ecs. You can also ask in Discord.

In the Support section, the sdk channel is for questions regarding code, the builder-and-3d channel is for questions regarding 3D models and art. The Decentraland ESC Utils library includes a number of helper methods that make it easier to carry out a lot of common use cases. Add this line at the start of your game. Welcome to our series highlighting Game Stack Ambassadors! Our first ambassador spotlights Attilio Carotenuto. Hear how James Stone made his long-time dream of making video games a reality.

Tune in for an in-depth perspective on modern game development and stories behind some of the most successful LiveOps strategies. Join our hosts, James Gwertzman and Crystal Cox, as they interview a variety of game development professionals.

Listen on all major and minor podcast platforms! The recording is available in English. Come and talk to us about what you're creating, and find answers to the questions you have. Tell them my whole mechanics of getting the global transformation directly, and the consequence that my decomposing and conversion are necessary. And probably mention how they can construct the local transformations according to global transformations. Thank you very much for your corrections.

I am quite a noob on renderers since I have not written my own from scratch, so your correction on DX's coordinate system is very valuable. As mentioned before, that statement is incorrect. The mere use of a left-hand LookAt view matrix or a left-hand perspective projection does not guarantee that Z will be into the screen. It would, perhaps, be much simpler for you to leave out all of the "Up," "Right," "In" and "Out" descriptions of the axes and talk only in terms of left- and right-handed coordinate systems.

It appears your routine transforms data from one coordinate system to another, and nothing more. Just say that without all the Ups and Rights and Ins and Outs. The following method converts the data from Separate the direction of the view from the handedness of the system. Maybe something like: "Following the conversion, a model created in FBX facing in such-and-such direction and 'up' in some-other-direction can then best be viewed in a left-handed coordinate system with the view facing this-way with 'up' that-way.

EDIT: Regarding the scaling issue which results from the use of decomposition, I still think you should be more descriptive about the limitations of your conversion method. Some modeler who doesn't know programming is going to model Pinnocchio with a growing nose by making the "nose-bone" a lot longer and the width not so much and the programmer who doesn't know how to model is going to tell the modeler his model "doesn't work. IMHO, a technical article should discuss the limitations as well as the advantages of whatever is being discussed.

You mention several limitations or requirements for the use of your code elsewhere in the article. Be as explicit with its use in that discussion also.

After some digging into the concept of "handedness", I think I finally finally know what you mean. I am only going to describe a coordinate system in terms of "Where positive X is pointing to, where positive Y is point to, and where positive Z is pointing to". Because saying it this way will imply the handedness of the coordinate system and at the same time, fix the technical inaccuracy you are talking about. As for the limitations, I think I will aggregate all the limitations in one section called "Limitations and Beyond".

That way, the reader can easily spot all the things that my method is lack of and make proper adaptions based on their own demand. It's precisely the use of those terms that make your statements incorrect. That's a left-handed LookAt matrix, just as you specify. And "handedness" is decided by the direction of Z axis.

So, if I only specify the direction of each axes, then the reader should be able to deduce the handedness of the coordinate system that I describe. And a "x-right, y-up, z-in" coordinate system is a left-handed coordinate system. I will not use this sentence anymore because it is wrong. I am aware of this fact. Because "x-right, y-up and z-in" IS a left-handed coordinate system but a left-handed coordinate system IS NOT necessarily "x-right, y-up and z-in". Under this specific configuration X-Right, Y-Up, Z-in in your renderer, if you follow my tutorial, then the data will be ready-to-use.

That statement is the whole idea! A left-handed system doesn't have to be rendered with X pointing to the right of the screen, or the Z axis oriented pointing inward when viewed on the screen. It just occurred to me: are you trying to establish an alternate jargon for describing coordinate systems, and not refer to how axes appear on-screen? The terms up , right , and in are normally used to describe how the scene is actually rendered, i.

Describing coordinate systems as "left-handed" and "right-handed" are quite often used to make the distinction between DirectX and OpenGL. Those terms are well-defined and accurately describe the situation.

I'm afraid I don't understand your aversion to using technical terms in a technical article. If your intent is to use those terms to generally describe coordinate systems, rather than using "left" and "right," I can't really object.

No problem. Although I understand your intent now, I still find it a bit tedious to have to stop and think whether the axes described represent a right- or left-handed system. Hopefully it's just me. Thank you for taking the time to put together the article. Questions about FBX have appeared quite a bit in the forums and your article may provide more insight into the process. I would really like to see this article expanded on to explain how to load the entire scene from fbx file.

Yes I would love to see you load an entire scene into some easy to understand game ready format. Or something close to it. I have not tested it thoroughly so I will not put it into my article yet. But thanks for your information and I will have a look at it. We need to change the vertex values of the mesh. So doing the conversion yourself is inevitable in my opinion. However, I can save some work of animation transformations.

I've been trying to load some static mesh scenes with this tutorial. I am quite busy recently. I will add those if I have free time tonight. Just give me list of everything you need. Would It be possible to release the entire source code, to a project that loads a mesh or meshes? That compiles and runs. It'd be cool if it drew to screen a mesh but not completely necessary. I think this would be more helpful than these few functions that are missing lots of the declarations and definitions.

Also why did you use new and pointers for the CtrlPoints? It would seem like a vector or std::array would work fine since use it like an array of data. The new and delete code just complicates it unnecessarily it seems. Unless its a map structure in which case further explanation is required.

My initial thought is that the file that people load can be pretty big. So I should avoid using stack memory. To be strict all my objects should be in the heap. But I think I got lazy later and did not keep up with this rule. But yeah, using pointers is just for avoiding big chunk memory allocation on the stack. I will give out the entire source code, but that needs some time. I don't want people to see my ugly, unorganized code But if you are in a hurry, I can send you an email for the source code.

Sounds good, It maybe a good idea to put your code on github and let people download and possibly improve the importer code as well. I was following your tutorial to load a static mesh and it seems there is a problem with UVs. If I load this model into Unity3D it displays fine. But what I then get is some incosistency with the uvs. Some parts of the mesh are wrongly mapped.

You can read the conversion section in my article. Why did you not show us what Keyframe is? Y ou don't provide your Joint struct either. It's difficult to follow without that information. You don't provide your Joint struct either. Yeah, I am aware of this. I have been pretty busy and have not gotten a chance to look at the new SDK. It might actually be a good thing. But I will need to play with it a bit to know how to update my article. It is seemed to be used as a regular vector the index of a vector could be used similarly as the key as the vertices has been inserted once and it has never been altered.

I wrote that code a long time ago I have quite some modification so I don't wanna spam you guys here, but I think the simplest 'fix' would be, to modify "ProcessMesh" from. Great post, I'm having a little trouble applying the animations to my verts however. I generate my skeleton and ctrl points using your code, but was wondering if my understanding of how to apply this data is correct:. Good article, do you have the complete code? There is no implementation details here for the ReadUV method Thank you very much for such detailed explanation, usually it's a challenge to understand anything from fbx skd documentation… I have one more question though, I have few meshes that do not have deformers.

I have the binding pose has nodes FbxSkeleton::eLimbNode with similar name as the mesh node, so I guess the must be a connection there, that I do not know how to get.

Could you please, point me in the right direction? I cannot use FbxCluster information since there are no deformers for the mesh Thank you!

Log In. Sign Up. Remember me. Forgot password? Don't have a GameDev. Sign up. Email Address. Careers Careers. Learn about game development. Follow Us. Chat in the GameDev. Graphics and GPU Programming. Published March 03, by Tianyu Lang, posted by tlang Do you see issues with this article? Let us know. Without loss of generality, I will use Binormal as an example: Before we take a look at the function, let's go over its parameters first.

We need this because we want to relate our layer information with our vertices Control Points int inVertexCounter : this is the index of the current vertex that we are processing. GetAt inCtrlPointIndex. GetAt index.