XNA is a game framework by Microsoft that allows deployment for Xbox Live Indie Games as well as Windows Phone 7.

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Sprite visual effect in XNA?

Suppose I have a character sprite and I want to apply some animating effect that overlay its color, how would I do it? What I desire is something along this line: (From final fantasy tactics) It is ...
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303 views

Need help with objects moving toward the player

I am making a 2D game with simple "gravity": everything is just pulled toward 0,0. The speed at which they accelerate towards it is GravityAcceleration up to MaxGSpeed. I also want the player to be ...
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259 views

Bone pivot mirroring problem in 3dmax

Im make model with animation in 3dsmax and port it to XNA game. All works fine except one character hand. I suspect its all about pivot and kinematics. When I create hand bone from scratch the ...
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382 views

3D Model transparency issue

I am using Goblin XNA 3.6. When I export a 3D model in FBX format from Maya, the model often looks transparent. For some 3D models it works fine though. What could be causing this?
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168 views

Farseer Physics EndContact events don't fire for all registered delegates

Here's my situation: I have several objects that contain a body and a fixture. They are set to sensor = true; atmosphere = BodyFactory.CreateCircle(world, atmosphereRadius / Level.METER_IN_PIXELS, ...
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25 views

How to play a video and run content at the same time

Alright, so I have a video loaded, and other game content. Earlier this morning, when I was just learning how to actually play a video, I magically happened to get the video running in the ...
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26 views

Is sidescroller movement just offsetting the background?, MonoGame/XNA

When I make a sidescroller game and what to move my character do I just offset the background, or is there another better way?
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58 views

Xna: Basic shadows

I have been programming in xna for quite some time now an I would really like to get real time shadows working. I have shadows already in my game which I got from "reimers shadow map tutorial". The ...
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58 views

How do I rotate a skybox?

I am trying to find the way to rotate my skyBox. I have a vehicle at a static position (0,0,0) and I can rotate that, but it seems that rotating the skybox is a different operation. First I load the ...
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16 views

DynamicSoundEffectInstance get volume, pitch for each frame XNA

I'm seeking to write a neural net for simple speech recognition in c#, I recorded the speech using the DynamicSoudnEffectInstance class, I need to know how to convert it to a series of pitches and ...
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25 views

XNA/XACT publishing help

So I'm trying to send off a demo to a friend to check out my game I started in XNA. It plays well when I'm debgging it on my computer w/Windows8 (and my other computer w/Windows7). I went to publish ...
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47 views

XNA Get height at players position from heightMap

So i got a server and a client, at the server I only got this on Terrain class: public class Terrain { int Id; float[,] HeightMapData; int Width; int Height; Vector3 Position; ...
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53 views

Multi-textured terrain XNA-monogame

I'm developing a TerrainEngine for my project and I have some issues with the multi-texturing part. I already tried some techniques but it doesn't match with my TerrainEngine's conception. My ...
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28 views

XNA sound effect loop cancel

I'm using SoundEffectInstances in XNA to play a tone. This means I have ~.005 second clips playing on a loop. It sounds fine, but I can't gracefully stop them because XNA gives a ...
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17 views

fbx file asks for fbm file in xna?

I downloaded a bat model from the internet and I went to Blender, used texture and shading as I want, then I exported it as a fbx file. Next I placed it into my content pipeline and ran it but it is ...
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129 views

Help slope tile collision platformer (XNA/C#) 2D

I have been creating a platform game in C# and XNA, everything works pretty well least the slope (down left and right). This is the project that I have so far. PlatformGameEngine.rar if the ...
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40 views

How can I determine the number of pixels drawn within a predefined shape on the screen?

In the image above, I want to know how can I calculate the number of pixels of the rendered players' shadows that are inside the elephant outline. An occlusion query is used to count the number of ...
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14 views

3D Model in the midst of tracking state inferred and tracked

I am developing Kinect motion capture application by using XNA framework.My 3d model's bones are sometimes at the state inferren and tracked ,so for example the hand is being at the very unrelated ...
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121 views

Layers with parallax in a game with zoom out by a transformation matrix

I'm trying to implement a parallax rendering to my multi layered backgrounds. It's a classic 2d fighting game like The King of Fighters and Street Fighter. It may have a stage composed by 5 layers. ...
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49 views

C# XNA Weird black line behaviour of sprite animation spriteBatch.Draw()

So I've been making a Space Invaders game in XNA. I have my ship spritesheet (sprites are left-to-right - horizontal). The spritesheet has 6 sprites. Here's my class: playerShip.cs using System; ...
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69 views

XNA C# - Get original rotation from parent bone transform

I have a 3DS Max made model, exported into FBX and imported into XNA project. The parts I am working with have NOT been rotated in Max (specifically, collision mesh is made of Axiz-Aligned boxes). ...
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15 views

how to add .tif importer to skinned model pipeline

I have model which is occuring .tif components but XNA can not import .tif.Because of that I should add a .tif importer to my skinned model processor. How can ı add this? My SkinnedModelProcessor into ...
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69 views

How to move vertices of matrix in order to cast a 2d shadow?

I am trying to add shadows to my 2D xna game. Currently I have created a "shadow" using the texture of the caster with a transparent gray color, rotated, and stretched using a matrix. This, though, ...
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48 views

Concepts to store XNA textures

I'm working on a graphic library supporting XNA with some cool features. To do so I need direct per pixel access to textures (RGBA). I've been wondering what are the advantages of using those two ...
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76 views

Data structure to store map layers in each Tile while keeping the order of terrain, items and monsters intact

My game represents its map as a 2D array of tiles, each of which stores a stack of layers. I'm looking for a data structure to efficiently represent this . I want to be able to add layers ...
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80 views

Drawing quadtree nodes

I'm using a quadtree example that I found on a tutorial. I have initialized the tree and using a breakpoint I am able to determine that there are 4 child nodes, each containing a number of items. So I ...
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52 views

HLSL - Binary operations

I'm trying to do binary operations with integers in the hlsl code. For example: int n = 10 & 15; Binary value of 10 = 1010 and Binary value of 15 = 1111. With this, n = 10, because (1010 & ...
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49 views

HLSL Shader Relative Positioning

I've got a shader that does the texturing, lighting, etc. for my game engine (written on top of MonoGame, in case that's relevant) for my block-terrain-based game (everything is rendered as triangles ...
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51 views

Speeding up Recursive Quad-Tree iteration

I've got a problem in regards of runtime speed in XNA. I've built up a Quad-Tree where each node stores the 3 positions of a triangle, which forms a Icosahedron and its subdivided triangles. My aim is ...
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117 views

2D Vector Graphics in XNA

I'm here today to ask about Vector graphics in XNA, my first question being whether it is possible or not. The only other question on here that I have seen in relation to this is simply asking which ...
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27 views

Wall Collision on a model

I am building a model of a house in XNA and made a collision system so that when the player goes into the wall they stop. Also I made it so if the player is pressing the key 'up' and collides into the ...
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36 views

XNA `tex2Dlod` always returns transparent black

I want to sample a texture in a vertex shader, so at first I just tried using float2 texcoords = ...; color = tex2D(texture, texcoords); But apparently I cannot use tex2D in a vertex shader, and ...
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151 views

graphics.IsFullScreen resetting to false after game constructor and graphics.ApplyChanges()

This is a MonoGame 3.2 Windows (DirectX) Project. I've tried setting graphics.IsFullScreen to true in the game's constructor and in the game's initialize function, both times running ...
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89 views

How can I create a 2D camera with zoom and parallax scrolling that works on every Windows Phone resolution?

Mario game that uses parallax scrolling: http://www.youtube.com/watch?v=de5f3mvRyIY I want to create a Windows Phone jump-and-run game with parallax scrolling. The parallax scrolling should be like ...
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83 views

Why isn't my Blender FBX not appearing in XNA?

I am trying to display a simple cube in XNA. The cube is the default Blender cube exported to a .fbx. Re-exporting the cube has had no effect. I have also varied the camera's z-distance from 5 to ...
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50 views

How to I coordinate a camera with the eyes of a model?

I am currently working on an FPS in XNA and I wanted to know how I would position the camera at the eyes of the model and whenever the model rotated or moved it's head (where the eyes are), the camera ...
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74 views

Particle friction with variable timestep in XNA

Alright, so I'm working on an engine of sorts in XNA (yes, it's deprecated, I know) and I'm implementing my own particle system. I've defined a "ParticleEffect" such that when it's supplied a GameTime ...
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47 views

Mouse RayCast quadTree in XNa

Hallo i have quadTree terain and every quadNode have BBox.I have made function to return center of hitted quadNode BBox. But it's returns my bad calculations..... I have pitchedYawRoll camera ,it's ...
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57 views

Pixel-Perfect Collision With Rotation

I know how to implement pixel perfect collision, but how would I do this with rotations applied to my sprite?
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34 views

Tiled and tmx files

i started using the software tiled and it very simple to create an image and object positions over there. I am using the library XNA and i would like to load the image and the objects into my code, ...
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52 views

Converting a WIndows Store App to Android

I cross posted this from SO I'm very new to Xamarin. I have a few published Windows Store apps and want to convert them to Android. I'm attempting to use Xamarin for this. I'm just using the free ...
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111 views

XNA - Finding boundaries in isometric tilemap

I have an issue with my 2D isometric engine. I'm using my own 2D camera class which works with matrices and need to find the tilemaps boundaries so the user always sees the map. Currently my map size ...
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65 views

XNA Guide text input - maximum length

so I am using Guide.BeginShowKeyboardInput to get the user to enter their username. I would like this to be limited to 20 characters, and it seems to break expected behaviour to let them input ...
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57 views

XNA Shader deformation event driven

I’m working on this tutorial trying to figure out how i can modify the code in order to get the deformation along only one axis (for example Z axis) when I hit a button on my keybord. In other words, ...
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75 views

XNA Windows Resolution / Mouse Position Bug

In XNA, when in windowed mode and resolution (set via PreferredBackBufferWidth/Height) is close to the resolution of the display, the view is distorted (zoomed in a bit)and the mouse coordinates are ...
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121 views

Zooming in isometric engine using XNA

I´m currently working on an isometric game engine and right now I´m looking for help concerning my zoom function. On my tilemap there are several objects, some of them are selectable. When a house ...
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65 views

Trying to get an object to move back and forth on collision between two collidable objects

Im trying to get a box object to hit a collidable wall on the right and when it hits it move left and hit the left wall and switch back and so on and so forth. Im having trouble with this because ...
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81 views

Rendering an Assimp Scene object in XNA without DirectX or OpenGL

Is there any site that explains how to render an imported Assimp Scene object in XNA/MonoGame using only the Frameworks available in those libraries? I realize that would be at the Vertex/Matrix level ...
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59 views

Animation of a 3D model's parts from code

I'm creating a game in XNA where will be an object called a tower. Its action can be described as two phases: aiming and firing. Here's a model I'm creating in Blender: I want the tower to have 3 ...
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40 views

XNA 2D Stencil Buffer Rotation

I am currently working on a 2d game related to planets and am trying to get a stencil buffer working with rotation. I currently have a stencil buffer found from another related answer but it refuses ...