Direct3D and C# - Displaying a 2D image

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Direct3D and C# - Displaying a 2D image

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the bloddy ghost

#1 October 19, 2009, 01:25:17 pm

Group: Premium member Posts: 5536 Joined: March 25, 2003	How would I go about displaying a 2D picture in C# using Direct3D? I'm trying to figure this out, but I haven't been able to. All the tutorials I could find about Direct3D and C# haven't been very helpful. __________________ has a girl in his bed. pot in his pipe and family guy on the tube. i like life

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JohnnyCasil

#2 October 19, 2009, 01:58:09 pm

Group: Premium member Posts: 2134 Joined: January 05, 2005	Unless there is some reason you have to use Direct3D in C#, I would say your first step is to not use that. C#'s Direct3D bindings have been deprecated and are no longer updated. If I were you, I would look into using XNA. In XNA it is incredibly simple to render a 2D picture to the screen by using the SpriteBatch class. If you cannot use XNA, you need to look at the Sprite class. Sprite

Mince Wobley

#3 October 19, 2009, 04:12:58 pm

I'm a walking time bomb killing everyone Group: Member Posts: 4532 Joined: November 05, 2006	~~Back in my day there was a d3d extension called d3dx which allowed you to draw images with ID3DXSprite~~ Just do what he said __________________ Play Raimond Ex (if you haven't already) *I'll not TAKE ANYTHING you write like this seriously because it looks dumb*

the bloddy ghost

#4 October 19, 2009, 07:41:23 pm

Group: Premium member Posts: 5536 Joined: March 25, 2003	Yeah XNA looks like a much better alternative. Thank you. __________________ has a girl in his bed. pot in his pipe and family guy on the tube. i like life

the bloddy ghost

#5 October 19, 2009, 11:43:50 pm

Group: Premium member Posts: 5536 Joined: March 25, 2003	Okay, I'm having another problem with this. I want to have a class that draws tiles to the screen during its Render function. The classes name is Room. public void Render() { sbatch.Begin(); sbatch.Draw(wall, new Vector2(20, 20), Color.White); sbatch.End(); } something like that. How can I get this to work in the main gameloop? I haven't been able to figure out a solution to this. What do I need to make sure I have in order to draw from an outside class? __________________ has a girl in his bed. pot in his pipe and family guy on the tube. i like life

JohnnyCasil

#6 October 20, 2009, 05:24:31 pm

Group: Premium member Posts: 2134 Joined: January 05, 2005	You need to show more of what you done, the snippet you provided really means nothing without any context. In XNA, you have your class that derives from Game. This class has a Draw method where all your rendering should occur. The simplest thing is to make your Room class's Render method take an argument of SpriteBatch and then call that Render method in the game's Draw method passing in the Game's sprite batch.

the bloddy ghost

#7 October 22, 2009, 01:39:20 am

Group: Premium member Posts: 5536 Joined: March 25, 2003	Okay, so I figured out the video problem and am pretty close to getting done with a simple map editor. The problem I am having now is saving data. How do I go about writing and reading a binary file? I tried reading a tutorial but I don't think it explained the reading portion too well. The StorageContainerMethod, which is what I initially wanted to use, apparently only applies to the XBOX 360. __________________ has a girl in his bed. pot in his pipe and family guy on the tube. i like life

JohnnyCasil

#8 October 22, 2009, 10:09:37 pm

Group: Premium member Posts: 2134 Joined: January 05, 2005	Well, it depends on what you want to do. If you are just makin a map editor, chances are you don't need to worry about StorageContainers because you aren't ever going to deploy a stand alone map editor to the 360. In that case, you can use any of the .Net classes that deal with writing files. Keep in mind though that StorageContainer is not 360 only. StorageContainers are what you want to use for your game to save your data if you want it to behave the same on Windows and the 360. However, XNA uses the content pipeline to load its data. This means you need to write a content pipeline extension to handle your data format. There are plenty of guides out there to get you started, but be warned this can get complex pretty quickly.

Mince Wobley

#9 October 22, 2009, 10:39:08 pm

I'm a walking time bomb killing everyone Group: Member Posts: 4532 Joined: November 05, 2006	Just a dumb question, how do you serialize in XNA? Is there an easy/fast way? __________________ Play Raimond Ex (if you haven't already) *I'll not TAKE ANYTHING you write like this seriously because it looks dumb*

JohnnyCasil

#10 October 22, 2009, 11:29:09 pm

Group: Premium member Posts: 2134 Joined: January 05, 2005	There are no ways that are both easy and fast. XNA comes with a IntermediateSerializer which will serialize into an XML content file. That is a very easy method. However, it is very SLOW. Like I said above, you always have access to the .Net framework on Windows and the Compact Framework on the 360, so you can use any of the classes on those. It really depends on what you want to do. I personally use a combination of XML content files and binaries files.

the bloddy ghost

#11 October 25, 2009, 04:22:10 pm

Group: Premium member Posts: 5536 Joined: March 25, 2003	Okay, so I have a basic entity class that has two functions, Update and Render(). I know that there is a way to override them from other classes that inherit the properties of the Entity class. For example, I want to have a MonsterEntity: Entity that does monster related stuff in its Update() section, and I want to have a HeroEntity: Entity be controlled by the keyboard in its Update() section. I then want to be able to have an Entity Manager be able to Update and Render all of them from a list. So what is the proper way to go about this? __________________ has a girl in his bed. pot in his pipe and family guy on the tube. i like life

JohnnyCasil

#12 October 25, 2009, 05:30:57 pm

Group: Premium member Posts: 2134 Joined: January 05, 2005	What specifically are you having trouble with? There is really no "proper" way to handle entities in a game, that is why almost every game handles them in a different way. Without you posting specifically what is giving you issues there is no way for us to tell you the proper way to handle it in your game. Without knowing what your specific needs are, I'll give you my general advice. I would ditch the whole entity inheritance tree. For simple games you may be fine, but for anything slightly complex you will run into the typical problems associated with entity inheritance trees. You should favor composition over inheritance anyways. Entities are really just composed of different properties and behaviors. This isn't my favorite article on the subject, but it is still a good introductory one: Evolve your heirachy

the bloddy ghost

#13 November 06, 2009, 11:58:12 am

Group: Premium member Posts: 5536 Joined: March 25, 2003	That article helped me out a lot. I had another question though, how would I make a text input prompt in XNA using the keyboard? __________________ has a girl in his bed. pot in his pipe and family guy on the tube. i like life

MagicBob

#14 November 22, 2009, 06:04:08 pm

The cat does not see the cliff. Group: Member Posts: 137 Joined: November 05, 2005	Quote from: the bloddy ghost on November 06, 2009, 11:58:12 am That article helped me out a lot. I had another question though, how would I make a text input prompt in XNA using the keyboard? XNA doesn't actually have anything built in that can get keyboard input so you'll have to make it yourself. Unfortunately, since KeyboardState.GetPressedKeys only returns the keys which were down during the time it was updated, you may need to need use another API like P/Invoke or WinForms to get more accurate input. These links should help: http://www.gamedev.net/community/forums/topic.asp?topic_id=457783 (GameDev discussion on this.) http://forums.xna.com/forums/p/10136/56014.aspx (An example using mostly WinForms, and one P/Invoke call to TranslateMessage. Leidegre explains the problem with input pretty well.) http://forums.xna.com/forums/p/7440/155133.aspx (An example using only XNA. Look for the last post by Binary Darkness.) Alternately, I believe you can use the Guide class to pop up a 360-like on-screen keyboard in your game. (http://forums.xna.com/forums/t/18272.aspx)

harrisandreson

#15 June 01, 2010, 05:17:09 am

Group: Member Posts: 8 Joined: April 02, 2010	hello to all Yeah, essentially... I have to admit I haven't tried it, but you can't get PIX to generate an overdraw of the image, can you? deep pixel analysis yes, but not shader complexity and so on..?image hosting The idea came from this thread. It'd be pretty awesome if you could somehow display the number of managed hosting pixel shader arithmetic or texture instruction count per-pixel. Could make for a great performance debugging tool - the brighter the colours the more fill-rate related work you're doing etc... linux hosting Then again, hacking that in via hooking stands as much chance of breaking things as it does working frontpage hosting Oh, and the obvious advantage is that it'd be overlayed - giving immediate feedback rather than the capture full stream then analyse the data.

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