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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How to implement simple shadows on XNA?

UPDATE: See photos below the description I try desperately to implement shadows on my XNA games. My game is a style of games like Voxel (minecraft). The problem is that I do not find support / ...
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106 views

Improving effect performance in XNA

I'm making a 2D, top-down platformer, in which four or five layers are rendered each time the game draws. Everything is fairly performant except for the bottom layer, which is the game map. This is ...
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350 views

XNA 4.0 Pixel Shader 3.0 Exact Texture Lookup/Sample Issue

I am stuck on trying to solve this problem. I originally had some shaders written that worked for XNA 3.1, but after converting to XNA 4.0 they would no longer compile due to instruction counts, flow ...
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335 views

Why is Spritebatch drawing my Textures out of order?

I just started working with XNA Studio after programming 2D games in java. Because of this, I have absolutely no experience with Spritebatch and sprite sorting. In java, I could just layer the images ...
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133 views

Light on every model and not in the whole scene

I am using a custom shader and try to pass the effect on my Models like that: foreach (ModelMesh mesh in Model.Meshes) { foreach (ModelMeshPart part in mesh.MeshParts) { ...
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225 views

Get Specific depth values in Kinect (XNA)

I'm currently trying to make a hand / finger tracking with a kinect in XNA. For this, I need to be able to specify the depth range I want my program to render. I've looked about, and I cannot see how ...
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1k views

Why is my deferred lighting implementation so expensive?

I've implemented deferred lighting and I tried to put about 20-26 lights on the viewable space of my map, and it brings down the FPS from 61 to 28-31. It also makes my VGA temperature to go from 68°C ...
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2k views

XNA Screen Manager problem with transitions

I'm having issues using the game statemanagement example in the game I am developing. I have no issues with my first three screens transitioning between one another. I have a main menu screen, a ...
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359 views

How can I export a model using the CAT bone system into XNA?

Has anyone successfully used the CAT bone system in 3ds Max and exported the file into XNA? If so, what was your method of doing so? There are a number of methods of doing this, apparently, but the ...
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18 views

XNA Weird Alpha Blending

I recently implemented a prelighting renderer for my XNA voxel engine, but there is now a weird alpha blending glitch. When I render to the light map, I set the graphics device's blend state to ...
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96 views

How to setup a particular blend state where the alpha channel is additive?

I would like to set a blend state to be "additive" and do the following: Result.R = Source.R + Destination.R; Result.G = Source.G + Destination.G; Result.B = Source.B + Destination.B; Result.A = ...
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30 views

Export into several files with custom XNA content pipeline?

In order to implement a basic Ubershader (a shader which is compiled numerous times with different directives (defines)) I wrote a custom shader processor in XNA. My processor outputs a dictionarry ...
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100 views

Collision detection implementation suggestions

I'm working on a simple 2D game involving a rotating octagonal ring where a sphere sprite moves up/down avoiding objects as the ring rotates faster and faster. I'm having a difficult time with the ...
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59 views

XNA HLSL UV Mapping

I was testing my hlsl lighting shader, I've copied it from a tutorial and it works perfectly, but all the meshes in the model needs to have texture coordinate, I guess this is because this part: ...
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70 views

How would I warp a mesh with code?

I recently asked a question about putting a camera at the head of a 3D human model here and it worked out rather well and whatnot, but there is still a problem that bothers me: How would I ...
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56 views

Setting up 3d Collision for Primitive shapes

Im having some trouble understanding how to set up collision detection between my first person camera and my primitive shapes which are made using the vertex buffer. Do i give my camera a boundingBox ...
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349 views

How can I use custom shaders in Monogame?

I wrote a shader in XNA and I want to use it in a Monogame Windows Phone 8 project. I converted my Effect1.fx file to Effect1.mgfxo. But the program doesn't work correctly. The screen of my emulator ...
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88 views

How calculate a new node after cutting a node into an octree

I'm working on a small XNA game, voxel-based like minecraft. I've recently faced a problem in how to delete a node (cube) from an octree and re-calculate the new octree afterward. I have already ...
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66 views

Texture visualization problem on camera movement (xna)

I'm trying to move a camera over a model that is used as the floor of the game. When I move the camera, the texture of the model is not showing correctly (video of the problem: ...
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220 views

Xna GraphicsDevice.IsFullScreen causes strange resolution stretching artifacts

Sorry for the non-descriptive title. So I've been trying to implement fullscreen mode into my xna-game, and I've hit a couple of roadblocks. My basic code setup for this functionality is the ...
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113 views

SpriteFont not found in Nuclex Framework

I am using MonoGame to port my XNA Windows Phone app to iPhone. All is well except that my fonts look distorted/smudged on the iPhone. Turns out this is due to the way that MonoGame builds the ...
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178 views

write to depth buffer while using multiple render targets

Presently my engine is set up to use deferred shading. My pixel shader output struct is as follows: struct GBuffer { float4 Depth : DEPTH0; //depth render target float4 Normal : COLOR0; ...
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58 views

Changing the position of a Gravity Controller - Farseer

I'm trying to create mini black holes for my XNA game using farseer physics. Problem is I can not get the gravity source to stick to the Body I've attached it to, as it scrolls across the screen, the ...
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177 views

XNA 4 / Monogame 3d tunnel collision

I am trying to collide an aircraft with a FBX tunnel model. I don't know how to create multiple bounding boxes for a tunnel. The tunnel is contains a single mesh. I tried using the triangle picking ...
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469 views

Windows 8 C# Compile spritefonts for MonoGame without XNA

Hello Stack Exchange community. Recently, I've been attempting to in some way generate sprite-fonts into XNB files for use with MonoGame. The issue is however, as you may be aware, XNA is very ...
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70 views

Creating a DrawableGameComponent

If I'm going to draw cubes effectively, I need to get rid of the numerous amounts of draw calls I have and what has been suggested is that I create a "mesh" of my cubes. I already have them being ...
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90 views

Farseer: Cutting body from texture

Is it possible to cut a body from a texture in Farseer 3.0? I have a texture converted to a body with multiple fixtures ( using BayazitDecomposer, CreatePolygon method, ..) and can even do it as a ...
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156 views

scale rotating boundingbox

I want to use basic rectangular collision detection. I have a rotating sprite and a method that calculates the bounding box every time in the Update() method. I simply check for intersection between ...
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203 views

XNA: Placing a “field of view” rectangle on a minimap

I'm building a top-view 3ed person shooter. I have a HUD and in the HUD I have a minimap. I'm trying to draw on this minimap a rectangle which shows me my "visual field", meaning i see on the minimap ...
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218 views

Getting UV maps from UDK?

I have created a map using UDK and I am exporting it as a .fbx for use within an XNA project. My question is, can I generate a UV map for texturing the map or is there an easier way to texture a map ...
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515 views

cocos2d-xna CCScale9Sprite usage

I'm trying to get a CCControlButton to render on my game. Using a basic CCScale9Sprite as the button's background works using the following: var myScale9Sprite = ...
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80 views

XNA Kinect Color Stream Performance Issues

I am developing an XNA game using Kinect. It requires using Depth and Color streams for extracting only the player's image from the color image. So far I can extract the image and set their data into ...
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441 views

Stacking Drawing Matrix for SpriteBatch in XNA

I'm trying to make a 2D engine for XNA with SpriteBatch. My object unit is Entity, which can include other Entities as its children. However, when drawing them, the rotation and scaling stacking do ...
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194 views

3D Animations in XNA 3.1

Well, guys. I'm in a Game Design class at school. Before you ask "WHY ARE YOU USING 3.1 INSTEAD OF 4" -- I would like to point out that C# 2008, and .NET framework 3 is NOT my preferred environment, ...
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188 views

Strange rendering issue with monogame/WinGL with HD7670M

I'm having some strange rendering issues with latest monogame/winGL code as seen below; As you can see the xna and tomspilmans WinDX port seems just okay. I'm having this problem on my laptop ...
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198 views

Deferred Rendering: Orthographic directional light that has position

Basically I need to code a light for deferred rendering that is a cross between a spotlight and a directional (positionless) light. It's to be used for sunlight, but because my terrain has overhangs ...
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151 views

Maya Animated Character export for XNA 4.0 problem

To begin with, I'm trying to export an animated character in .fbx format from Maya 2013 to XNA 4.0 In Maya, The Model has a basic rig and the animations are in clips made in the Trax editor. so the ...
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72 views

Farseer circle hangs where it's spawned

I'm currently trying to simply spawn a circle in Farseer. However, it's stuck wherever I spawn it! The game is updating fine, as I can see the circle spinning in place when I spawn it because of how I ...
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276 views

Matrix.CreateBillboard centre rotation problem

I'm having an issue with Matrix.CreateBillboard and a textured Quad where the center axis seems to be positioned incorrectly to the quad object which is rotating around a center point: Using: ...
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574 views

Best depth sorting method for a Top Down 2D game using a 3D physics engine

I've spent many days googling this and still have issues with my game engine I'd like to ask about, which I haven't seen addressed before. I think the problem is that my game is an unusual ...
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0answers
195 views

Camera not staying behind model while moving in circle

I have a camera behind a model (3rd Person) and I'm having problems KEEPING it behind the model. When I first start my game, you see the back of the model. If the model moves forward, backward or ...
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0answers
239 views

Outline Shader Effect for Orthogonal Geometry in XNA

I just recently started learning the art of shading, but I can't give an outline width to 2D, concave geometry when restrained to a single vertex/pixel shader technique (thanks to XNA). the shape I ...
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251 views

Getting and Setting Rotation in XNA around the Center of my Model with XNA

Alright, so I'm currently debating how I want to do this. Basically this is what I'm trying to accomplish. I've created a system to allow me to make my environment a little bit easier. I'm ...
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419 views

XNA HLSL: Skinned Model Deforming Wrong

I am creating a basic XNA recreation of Minecraft. My current problem is that my "Steve" model, which is skinned with an armature using vertex groups to deform, is showing up disfigured beyond all ...
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306 views

Is it considered poor programming to do this with xna components?

I created my own Menu System that is event driven. In order to have a loading screen and multithreaded loading to work, I devised this sort of implementation: //Let's check if the game is done ...
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0answers
245 views

Map terrain generation to texture instead of color

I have some terrain being generated using the following algorithm double rand1 = rand.NextDouble() + 1; double rand2 = rand.NextDouble() + 2; double rand3 = rand.NextDouble() + 3; float offset = ...
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203 views

Sprite sorting issues

I apologize for the vague title, I'm not sure how else to phrase this problem. I am using tIDE to assist me in my game's world development. To give a dynamic effect to map layers within tIDE, it has ...
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526 views

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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297 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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249 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 ...