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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XNA tiling a sprite with a camera.viewmatrix in the Draw method

I'm looking for help fixing a small problem that I have with my XNA game project. I currently have: spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend, null, null, null, ...
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0answers
36 views

How can I make my .fbx models load faster? [on hold]

This is a post I am revising although I have previously asked it. My 3D fighting game's load times are already pretty high, even though it's early in development. The 2 models are... The Character - ...
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2answers
102 views

How can I combine chasing and obstacle-avoidance in a steering-based AI?

I'm developing a top-down game in XNA with enemies that wander until they are within range of a player, at which point they begin chasing the player. This works, but I also want them to avoid ...
3
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1answer
224 views

XNA windows phone release black textures

i just made a 3d game in XNA for windows phone 7. I build it in release mode on visual studio 2010 and suddenly when I run game there is no textures on models - 2 models are black and one is ...
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1answer
93 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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0answers
45 views

XNA/MonoGame/SharpDX: Pixel shader with sprite sheet

I've searched around for two days now on the internet but cannot find a solution. I've also read up on Pixel Shaders on MSDN with no luck. I'm trying to apply a simple pixel shader to a sprite batch ...
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1answer
119 views

Problem building a color grading map

I am trying to build a default color grading map into a 1024x32 RenderTarget. Here is my shader code: VertexShaderOutput VertexShaderFunction(VertexShaderInput input) { VertexShaderOutput output; ...
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0answers
25 views

XNA: Working with primitives and tessellation [on hold]

I was working with primitives in XNA (since I have limited knowledge with 3D and modelling), and I have 3 similar questions below: Question 1 I was reading up on terrain tessellation in an article ...
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24 views

Trying to figure out why models aren't visible. [XNA / Monogame] [on hold]

I'm creating a 3D game using monogame and the leap motion and have been having trouble getting my models to draw on the screen. Here's the code for the Camera, bullet, and target classes I see that ...
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1answer
875 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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0answers
40 views

For Loop Issues [closed]

I'm using 3 for loops to loop through an array in order to set a position of an enemy. When I set a breakpoint, all items have the same position and I dont know why for(int i = 0; i < ...
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2answers
211 views

Processing periodical operations on the database [duplicate]

I program MMO strategy game (C# monogame) like Goodgame Empire or Travian for Windows Phone. The server part of the game will run on Windows Server and MS SQL database. I'm trying to figure out a ...
2
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1answer
466 views

How can I simulate objects floating on water without a physics engine?

In my game the water movement is done in a shader using Gerstner equations. The water movement looks realistic enough for a school project but I encounter serious problem when I wanted to do sailing ...
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0answers
23 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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2answers
67 views

HLSL Shadow Mapping occurs only around player

I've recently begun playing around with Monogame (OpenSource "remake" of XNA). My current task is to write a simple shadow mapping shader. After following Riemer's XNA Tutorial I got the shadows to ...
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1answer
77 views

XNA Masking Mayhem

I'd like to start by mentioning that I'm just an amateur programmer of the past 2 years with no formal training and know very little about maximizing the potential of graphics hardware. I can write ...
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1answer
83 views

Voxel engine/vertexes: how to add more and more different textures during game runtime and change some of the blocks' faces?

It's difficult to ask this, but I'll try. The thing is: I asked before somethings about creating ramps and blocks with vertexes. [I'm using C#/XNA.] Explanation: now I got a chunk that has blocks ...
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1answer
34 views

Trying to implement bounding box collision

I've been trying to do collision detection using the Intersects() function with two rectangles. I've got a player and multiple enemy's. When the player intersects with an enemy a bool var is set to ...
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1answer
112 views

XNA Diffuse Shader Issue. Edge lighting problem. Image Attached

As you can see in this image the diffuse shading is working correctly in some places but in other places such as the the bottom of the sphere you can see the squares/triangles of the mesh. Any ...
2
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1answer
257 views

Handling game-state updates in an MMO while the player is logged out

I have a plan to build MMO strategy game like Goodgame Empire or Travian for windows phone. I want program it in C# Monogame (because I have some good experiance with it). But I still can't figure ...
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1answer
38 views

Tilemap collision problem [closed]

I have a method here that returns true if a collision is detected between the player and tile. private bool CheckCollision() { foreach (CollisionTile tile in ...
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1answer
22 views

MonoGame SharpDX Error 'The Parameter is Incorrect' when using graphics.DrawUserPrimitives

Below is a small section of code that is meant to draw a multicolored triangle to the middle of the screen in a MonoGame game. This uses the basic function DrawUserPrimitives to draw the triangle. ...
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3answers
50 views

Can you offset the horizontal flip in SpriteEffects XNA?

As the title suggests I need to know if there is a way to offset the SpriteEffects.FlipHorizontally component in the XNA draw method. My reason for this is the sprite I am attempting to flip is not ...
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0answers
32 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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1answer
61 views

C# XNA Rectangle.Contains returns false?

I am creating a simple XNA game. My mainMenu class contains a list of strings for menu options wich I draw on the scren using spriteBatch.DrawString. I've set Vector2 variables to controll the ...
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2answers
99 views

XNA How to change the sprite texture to white color

as the title, how can i do to take the sprite to white color here is some example, turn to follows image and my game planform is XNA now, and developed winphone game thanks for reading!
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1answer
337 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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1answer
274 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
139 views

Rectangle touch sides of another rectangle

I am making a platformer game and im trying to make the player collide with all the blocks, here's a picture: The blocks is stored in List and im trying to get the side's of the block usin static ...
3
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1answer
350 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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2answers
474 views

XNA 3.1 to 4.0 Vertex Shader Not Drawing

I have recently been converting our XNA 3.1 game to XNA 4.0 and am stuck on the shaders. I have the game running, but nothing is drawing to the screen, except things not using a shader. This is only ...
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1answer
38 views

Creating refraction map problem

I'm reading riemers tutorial on how to make a water effect and trying to translate it from xna 3 to xna 4. So far I figured out I have to create a shader in order to clip the planes for my refraction ...
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0answers
91 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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3answers
107 views

Is this way of making an XNA game window borderless safe to use for various Windows PCs?

I have found a way to simply make an XNA 4.0 game's window borderless. Here is the code from the article: IntPtr hWnd = this.Window.Handle; var control = System.Windows.Forms.Control.FromHandle( hWnd ...
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0answers
45 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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8answers
7k views

2D graphics - why use spritesheets?

I have seen many examples of how to render sprites from a spritesheet but I havent grasped why it is the most common way of dealing with sprites in 2d games. I have started out with 2d sprite ...
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1answer
684 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 ...
2
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1answer
118 views

How can I simulate a magnet that attracts a ball in a 2D enviroment?

I am making a top-down game where you have to move a ball from point A to point B. You are attracting the ball using magnets that are standing still. The ball needs to get pulled by multiple magnets. ...
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2answers
84 views

Multi-colored text and kerning

Drawing multi-colored text or highlighted text in XNA/MonoGame is pretty annoying, and the standard way I've seen to do it is to just to make multiple SpriteBatch.DrawString calls, and place them ...
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2answers
91 views

Building a chunk w/ blocks: making ramps. How to detect if blocks are making “stairs” (like in a mountain) and should be turned into ramps?

My question is quite simple, but the answer may be not. I am studying and making a voxel engine, generating block vertices around its center position with TriangleList primitive at C#/XNA. The ...
4
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1answer
110 views

How do I letterbox a C#/Monogame viewport within a resizeable window?

I am making a 2d game with xna/monogame. I want the main view area to always show 15x15 tiles, or 480x480px. I've got something that sort of works, following this guide. It expands the view range ...
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1answer
68 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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1answer
95 views

Why are my sprite outlines partially rendering in the wrong place?

I've been trying to draw an outline around a sprite using the code from this answer. Details My sprite is called Ship2Sprite. This is how I create the rectangle: rectangle = New ...
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1answer
543 views

How can I skew my XNA sprites?

I would like to make a 2D tile based game, but, to make it look a bit prettier, I would need to skew textures so that it would look more like a 2.5D game. So I thought maybe I should skew textures to ...
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2answers
68 views

Vertical Collision Detection, Falling Through Ground

After much work trying to learn collision system theory and apply it, I've got my collision system working for the most part. The player can collide horizontally with no issue, sliding against walls, ...
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1answer
69 views

Inventory management syncronized network

I'm implementing an inventory system with items in 1x1 slots in a open-world multiplayer game. But I can't decide how I want to synchronize the item management with the server. I see two options here. ...
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1answer
199 views

Issues with touch buttons in XNA (Release state to be precise)

I am trying to make touch buttons in WP8 with all the states (Pressed, Released, Moved), but the TouchLocationState.Released is not working. Here's my code: Class variables: bool touching = false; ...
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1answer
84 views

Multiple tile drawing in monogame is slow

So I have this drawing function (which is by the way recomended as an solution here). It draws tiles on the whole window with no problem but my game slows down to ~30fps after maximizing it to ...
2
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1answer
63 views

Wall-sliding Collision Response Only Works On One Axis (2D)

"sprite" is the player object, velocity is a Vec2 that tracks movement (is set to -1, 1, or 0 at any given time), each sprite in "sprites" is a wall of the same size as the player (everyone is a block ...
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3answers
109 views

Get highest (Y-axis) vertices from primitive d20 dice in xna

I have created a d20 dice (icosahedron) in xna and used BEPU physics to roll it. But now I'm trying to get the value from the dice after its rolled. I was thinking about looking for the 3 vertices ...