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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Overlapping Vertex in DynamicVertexBuffer draw priority?

I am creating a voxel game, and I have recently run into an issue. My world is drawn by a DynamicVertexBuffer, which just consists of vertices for the blocks themselves. On top of that, I switch ...
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1answer
148 views

Understanding how texCUBE works and writing cubemaps properly into a cube rendertarget

My goal is to create accurate reflections, sampled from a dynamic cubemap, for specific 3d objects (mostly lights) in XNA 4.0. To sample the cubemap I compute the 3d reflection vector in a classic ...
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2answers
82 views

MonoGame 3.3 Font loading

Is there any way to have fonts in game without making a separate Content Project and adding a .spritefont file in the new 3.3 Monogame? You can now load other resources directly from the Content ...
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1answer
39 views

How to rotate (YAW) aircraft in XNA?

I'm developing a flight simulator based on Riemer's Blog tutorial (XNA C#). To control the aircraft, I use the following code: Quaternion additionalRotation = Quaternion.Identity; additionalRotation ...
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2answers
199 views

Spritebatch not working in winforms

I'm using the Winforms sample on the app hub and everything is working fine except my spritebatch won't draw anything unless I call Invalidate in the Draw method. I have this in my initialize method: ...
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1answer
24 views

xna - Render background and multiple sprites to a single texture

I currently creating a game and I am trying to render my background and a sprite to a texture. Currently I have the background being rendered to a texture. But I am needing to render both my ...
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1answer
966 views

Drawing Shape in DebugView (Farseer)

As the title says, I need to draw a shape/polygon in Farseer using debugview. I have this piece of code which converts a Texture to polygon: //load texture that will represent the tray ...
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2answers
25 views

Flushing KeyboardState

I'm using a simple InputManager class for an XNA game with keyboardState and lastKeyboardState that gets updated and has KeyDown/KeyReleased/KeyPressed functions... but ran into a small problem: I ...
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2answers
72 views

Event handling on own UI implementation in XNA

I´m creating a game in XNA with my own UI and its controls/components. Currently I have some problems with the event handling. Let me tell me the way I do it right now. Every object is handles as a ...
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1answer
91 views

XNA: How to capture precise time of button press?

I'm guessing the default XNA model encourages checking for button presses in Update(). However, I am developing a game-like application for research and need to measure reaction times as quickly as ...
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3answers
2k views

XNA: Rotating Bones

XNA 4.0 I am trying to learn how to rotate bones on a very simple tank model I made in Cinema 4D. It is rigged by 3 bones, Root -> Main -> Turret -> Barrel I have binded all of the objects to the ...
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1answer
297 views

How can I remove Magic Pink from an image at runtime using GraphicsDevice?

In XNA 4.0, I want to load all my textures at runtime, which means I will not be able to take advantage of the content processor. (This is fine because it would allow people to change graphics and ...
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1answer
52 views

Creating a queue for BeginInvoke method - loading chunks

I have a voxel game similar to Minecraft. I have a funciton PushLoadedChunks(Direction) that pushes all of the loaded chunks forward, backward, left, right. This is done with ...
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1answer
135 views

Lightning bolt effect with particles is not continuous

I am Drawing a lightning effect animation using this image: Below the result: As you can see the outcome is not a continuous purple color as I wanted it to be, but it has black spaces in ...
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0answers
13 views

Can I generate collision boxes from a model file with BepuPhysics and XNA?

I am currently developing a game using BepuPhysics in XNA 4.0, and I am trying to reasonably match the in game collision Entities with the Model they are associated with. My current workflow involves ...
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1answer
95 views

Having trouble getting shader to work with sprite batch in XNA #4

I found a neat "CRT screen" effect shader on the web, but I've never used shaders before and I can't seem to get it working properly. If I do the second sprite batch in my code here normally without ...
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1answer
64 views

Center a 3D model to cursor's position

I am having a hard time understanding how to go about this. I have a 2D game with some 3D models in it. I want to move a 3D model to where the mouse cursor is currently at in every frame (In other ...
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1answer
46 views

Fast mesh collision 3D (C# XNA)

I'm trying to write a simple program where a 3D landscape can be walked about with a basic camera. However, I've found it very difficult to do even simple collisions with my terrain. I'm wondering if ...
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75 views

How to do animation of XNA model integrated with WPF?

Back with another weird question I managed to find a XNA Model viewer integrated with WPF which is this one https://xnamodelviewer.codeplex.com/ So I had a custom processor which sort of run multiple ...
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1answer
46 views

How to order objects with the same depth in the spritebatch cycle?

I have a tilemap in a isometric 2.5 view and i have also many objects moving and static. The problem is many statics are standing in a "integer" place for obvious reasons and the depths of each object ...
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2answers
34 views

MonoGame Point filtering movement appears Choppy/Jerky

When you move a sprite that is drawn using point filtering with a decimal number, example : 0.1 pixel or 100 * deltaTime (1.6) the movement appear choppy/jerky because it jumps from pixel to pixel. ...
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1answer
342 views

How can I disable mipmapping on textures loaded from .X files?

I'm trying to render a plane mesh textured with a simple grid pattern. The problem is that XNA keeps mip-mapping the texture in horrible, horrible ways. What I'm trying to achieve is to get this ...
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1answer
66 views

Camera movement constrained to pixel boundaries

So a friend and me, we are currently making a game in C# using XNA. We are trying to get the camera to move in full pixel motion, but we just don't get it right. This concept is hard to explain, but ...
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2answers
4k views

Clipping a SpriteBatch Draw() in XNA

Is there any way to enable a temporary clipping mask in XNA while using a SpriteBatch? I'm drawing a bunch of Texture2D objects and Sprites in a given rectangle, and I want to make sure that said ...
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2answers
297 views

How can I achieve a pseudo-3D camera effect like this?

I am trying to achieve a pseudo-3D camera effect similar to this: I have gotten the following results using a 3D camera and billboards: I am now running into the following problems: In the ...
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1answer
71 views

XNA/Winforms - Nothing being drawn after calling SetRenderTarget(null)

I'm creating a basic scene/level editor using XNA/Winforms using the base classes from http://xbox.create.msdn.com/en-US/education/catalog/sample/winforms_series_1 Everything works fine and gets drawn ...
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1answer
36 views

XNA Stop movement when arrived

I'm trying to stop movement when sprite arrive target position. But i couldn't handle it. Sprite still move and pass target position. Here's the code that runs every update to move it. public ...
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1answer
68 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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2answers
52 views

Create a big image out of several other small images in MonoGame/XNA

How can I create one big Texture2D out of several other small Textures2Ds? Then display that image instead of all the small images.
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1answer
172 views

XNA C# 3D game Wall collision response glitch

I have been working on a reliable physics system in my code and so far it's ALMOST working. :D I am aiming for wall "sliding" style of collision response, like you'd expect it to work in commercial ...
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2answers
507 views

Sprite collision with color?

Is this possible? To elaborate, I am making a PacMan offshoot. Essentially it is a "zoomed in" version of the game, but the board is randomly generated. I have 11 .png files each to be used as a ...
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2answers
54 views

2d camera shaking back and forth

I'm trying to create a smooth moving 2d camera but the camera is shaking back and forth 1 pixel. Player camera rectangle: public Rectangle recCamPosition(Global global) { return new ...
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1answer
305 views

Disappearring instances of VertexPositionColor using MonoGame

I am a complete beginner in graphics developing with XNA/Monogame. Started my own project using Monogame 3.0 for WinRT. I have this unexplainable issue that some of the vertices disappear while doing ...
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1answer
4k views

Determine arc-length of a Catmull-Rom spline to move at a constant speed

I have a path that is defined by a concatenation of Catmull-Rom splines. I use the static method Vector2.CatmullRom in XNA that allows for interpolation between points with a value going from 0 to 1. ...
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1answer
513 views

Spritebatch Vertex shader world matrix change after each draw

I have a spritebatch where I draw some textures transformed in 3d space. The easy way was just Begin with the transformation matrix, draw, and end it right after. But that is silly, so I'm trying ...
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1answer
33 views

Porting WP8 to IOS GraphicsDevice Error (Monogame/Xamarin)

I seem to be having a problem porting to IOS. I have my game working on WP8 and Android with any major issues but when trying to run on iPhone I seem to get an error when initialising the ...
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1answer
34 views

Issue with rotating particle effects with DrawUserPrimitves

I am creating a voxel-like game in XNA/Monogame. I am trying to create particle effect of which I create by making a list that is populated every frame. My issue is here: I am using a WorldMatrix to ...
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1answer
55 views

XNA Distortion Shader problem

So I came up with a distortion pixel shader in hlsl, but it has some issues. First of all, here is how it works: The shader uses another texture generated by the program as a distortion "map" (if ...
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1answer
108 views

Apply shader to only a part of a sprite

I'm trying to make an image blur when a transparent image overlays it, I am wanting it only to blur the section that is being overlayed. So if half of the original image is not being overlapped, that ...
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21 views

Problem restoring the game preffered buffer size after navigating from a XAML page. Monogame

I have implemented to my game a simple leaderboard and submit score pages, which are pages in XAML. I used PreferredBackBufferHeight/Width to set the buffer to be equaly on all devices, whether their ...
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3answers
65 views

Strategy for keeping a primitive facing the viewport?

Using XNA, c#. I'm writing a stellarium-type of program-- well, trying to :-) -- and I have a 'sun' texture that I'll be pasting onto triangle primitives. I'll also be floating some text above each ...
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1answer
773 views

3DS Max MassFX — Animation to XNA without bones/skins?

I made a model in which a number of cobble stones fall into a hole using the rigid bodies in 3DS Max 2012 MassFX. They are just editable polys, no skin, no bone. I want this to play (Take 001, 0-100 ...
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1answer
239 views

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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1answer
146 views

Remove item after crafting

I'm having one last problem with my crafting system. Say an item takes 2 rocks, 1 twig, and 1 vine. When I craft the item, only 1 of each item is removed instead of the correct amount of items related ...
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3answers
147 views

Is there a way to scale a texture via GPU rather than by CPU?

For my game that I'm developing I want to have my cards dynamically drawn so if there is any changes done to them it could be drawn on the card itself. What I have currently is that the cards are ...
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0answers
39 views

XNA/C# Shadows look strange in orthographic

I have implemented shadows in to my game engine. They look fine when rendered in projection mode as a projected light, however I get a strange "blocky" look when they are put into orho'. I will be ...
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4answers
5k views

Faster 2D Collision detection

Recently I've been working on a fast-paced 2d shooter and I came across a mighty problem. Collision detection. Sure, it is working, but it is very slow. My goal is: Have lots of enemies on screen and ...
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74 views

XNA renderTarget, how to convert mouse coordinates to world position when upscaling

I'm currently developing a monogame game with a tile engine. I have been experimenting with different tiles and sprites sizes : 16px, 32px, 64px I have settled for 32x32 pixels tiles rendered at a ...
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1answer
112 views

Incomplete mesh using DrawIndexedPrimitives after rotating mesh

Through help on this site I was able to draw the triangles of an unrotated, nonscaled nontransformed mesh created in Blender and exported to OBJ, accurately imported through Assimp and rendered in XNA ...
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45 views

Equivalent to Draw() method in Unity project?

I have been using xna/monogame before this. So I read tutorials about unity, made some classes, loaded some sprites, everything "seems" to be going good, but I can't figure out how to add things into ...