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  • Software rendering 3d triangles in the proper order

    - by at.
    I'm implementing a basic 3d rendering engine in software (for education purposes, please don't mention to use an API). When I project a triangle from 3d to 2d coordinates, I draw the triangle. However, it's in a random order and so whatever gets drawn last draws on top of all other triangles (which might be in front of triangles it shouldn't be in front of)... Intuitively, seems I need to draw the triangles in the correct order. So I can calculate all their distances to the camera and sort by that. The objects furthest away get drawn last. Is this the proper way to render triangles? If I'm sorting all the objects, this is n*log(n) now. Is this the most efficient way to do this?

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  • Why is permadeath essential to a roguelike design?

    - by Gregory Weir
    Roguelikes and roguelike-likes (Spelunky, The Binding of Isaac) tend to share a number of game design elements: Procedurally generated worlds Character growth by way of new abilities and powers Permanent death I can understand why starting with permadeath as a premise would lead you to the other ideas: if you're going to be starting over a lot, you'll want variety in your experiences. But why do the first two elements imply a permadeath approach?

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  • What is a fast way to darken the vertices I'm rendering?

    - by Luis Cruz
    To make a lighting system for a voxel game, I need to specify a darkness value per vertex. I'm using GL_COLOR_MATERIAL and specifying a color per vertex, like this: glEnable(GL_COLOR_MATERIAL); glBegin(GL_QUADS); glColor3f(0.6f, 0.6f, 0.6f); glTexCoord2f(...); glVertex3f(...); glColor3f(0.3f, 0.3f, 0.3f); glTexCoord2f(...); glVertex3f(...); glColor3f(0.7f, 0.7f, 0.7f); glTexCoord2f(...); glVertex3f(...); glColor3f(0.9f, 0.9f, 0.9f); glTexCoord2f(...); glVertex3f(...); glEnd(); This is working, but with many quads it is very slow.. I'm using display lists too. Any good ideas in how to make vertices darker?

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  • Loading sound in XNA without the Content Pipeline

    - by David Gouveia
    I'm working on a "Game Maker"-type of application for Windows where the user imports his own assets to be used in the game. I need to be able to load this content at runtime on the engine side. However I don't want the user to have to install anything more than the XNA runtime, so calling the content pipeline at runtime is out. For images I'm doing fine using Texture2D.FromStream. I've also noticed that XNA 4.0 added a FromStream method to the SoundEffect class but it only accepts PCM wave files. I'd like to support more than wave files though, at least MP3. Any recommendations? Perhaps some C# library that would do the decoding to PCM wave format.

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  • creating bounding box list

    - by Christian Frantz
    I'm trying to create a list of bounding boxes for each cube drawn, so I can use the boxes to intersect with a ray that my mouse position is casting, but I have no idea how. I've created a list that stores the boxes, but how am I getting the values from each box? for (int x = 0; x < mapHeight; x++) { for (int z = 0; z < mapWidth; z++) { cubes.Add(new Vector3(x, map[x, z], z), Matrix.Identity, grass); boxList.Add(something here); } } public Cube(GraphicsDevice graphicsDevice) { device = graphicsDevice; var vertices = new List<VertexPositionTexture>(); BuildFace(vertices, new Vector3(0, 0, 0), new Vector3(0, 1, 1)); BuildFace(vertices, new Vector3(0, 0, 1), new Vector3(1, 1, 1)); BuildFace(vertices, new Vector3(1, 0, 1), new Vector3(1, 1, 0)); BuildFace(vertices, new Vector3(1, 0, 0), new Vector3(0, 1, 0)); BuildFaceHorizontal(vertices, new Vector3(0, 1, 0), new Vector3(1, 1, 1)); BuildFaceHorizontal(vertices, new Vector3(0, 0, 1), new Vector3(1, 0, 0)); cubeVertexBuffer = new VertexBuffer(device, VertexPositionTexture.VertexDeclaration, vertices.Count, BufferUsage.WriteOnly); cubeVertexBuffer.SetData<VertexPositionTexture>(vertices.ToArray()); } There aren't any clearly defined variables for the bounds of each cube created, so where do I create the bounding box from?

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  • Best memory allocation strategy for iOS ?

    - by Mr.Gando
    Hey guys, I'm debating myself about memory allocation on iOS. I write most of my code in C++ and I really like using ObjectPools, FreeLists, etc. In order to pre-allocate a lot of the stuff that I'll be constantly "alloc/dealloc" during the course of my game, ( like particles, game entities, etc ). Still on iOS, it's not like we are developing for a console like PSP, where I can know for fact that I'll get a fixed amount of memory. iOS , will issue "memory warnings" when the system needs memory. Does anyone have some suggestions about this ? Is it too serious since the new iPod touch/iPhone 4 are carrying more RAM ? or it's still a big concern ? Thanks!

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  • Jump and run HTML5 Game Framework

    - by user1818924
    We're developing a jump and run game with HTML5 and JavaScript and have to build an own game framework for this. Here we have some difficulties and would like to ask you for some advice: we have a "Stage" object, which represents the root of our game and is a global div-wrapper. The stage can contain multiple "Scenes", which are also div-elements. We would implement a Scene for the playing task, for pause, etc. and switch between them. Each scene can therefore contain multiple "Layers", representing a canvas. These Layer contain "ObjectEntities", which represent images or other shapes like rectangles, etc. Each Objectentity has its own temporaryCanvas, to be able to draw images for one entity, whereas another contains a rectangle. We set an activeScene in our Stage, so when the game is played, just the active scene is drawn. Calling activeScene.draw(), calls all sublayers to draw, which draw their entities (calling drawImage(entity.canvas)). But is this some kind of good practive? Having multiple canvas to draw? Each gameloop every layer-context is cleared and drawn again. E.g. we just have a still Background-Layer, … wouldn't it be more useful to draw this once and not to clear it everytime and redraw it? Or should we use a global canvas for example in the Stage and just use this canvas to draw? But we thought this would be to expensive... Other question: Do you have any advice how we could dive into implementing an own framework? Most stuff we find online relies on existing frameworks or they just implement their game without building a framework.

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  • [JOGL] My program is too slow, how can I profile with Eclipse?

    - by nkint
    My simple opengl program is really toooo slow and not fluid. I'm rendering 30 sphere with simple illumination and simple materials. The only complex computing stuff I do is a collision detection between ray-mouse and spheres (that works ok and i do it only in mouseMoved) I'm not using any threads, just an animator to move spheres. How can I profile my jogl project? Or maybe (most probable...) I have some opengl instructions that I don't understand and make render particular accurate (or back face rendering that I don't need or whatever I don't know exactly I'm just entering the opengl world)

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  • Custom shadow mapping in Unity 3D Free Edition

    - by nosferat
    Since real time hard and soft shadows are Unity 3D Pro only features I thought I will learn Cg programming and create my own shadow mapping shader. But after some digging I found that the shadow mapping technique uses depth textures, and in Unity depth values can be accessed through a Render Texture object, which is Unity Pro only again. So is it true, that I cannot create real time shadow shaders as a workaround to the limitations of the free version?

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  • 2D Tile-Based Concept Art App

    - by ashes999
    I'm making a bunch of 2D games (now and in the near future) that use a 2D, RPG-like interface. I would like to be able to quickly paint tiles down and drop character sprites to create concept art. Sure, I could do it in GIMP or Photoshop. But that would require manually adding each tile, layering on more tiles, cutting and pasting particular character sprites, etc. and I really don't need that level of granularity; I need a quick and fast way to churn out concept art. Is there a tool that I can use for this? Perhaps some sort of 2D tile editor which lets me draw sprites and tiles given that I can provide the graphics files.

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  • What to do with input during movement?

    - by user1895420
    In a concept I'm working on, the player can move from one position in a grid to the next. Once movement starts it can't be changed and takes a predetermined amount of time to finish (about a quarter of a second). Even though their movement can't be altered, the player can still press keys (perhaps in anticipation of their next move). What do I do with this input? Possibilities i've thought of: Ignore all input during movement. Log all input and loop through them one by one once movement finishes. Log the first or last input and move when possible. I'm not really sure which is the most appropriate or most natural. Hence my question: What do I do with player-input during movement?

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  • Axis-Aligned Bounding Boxes vs Bounding Ellipse

    - by Griffin
    Why is it that most, if not all collision detection algorithms today require each body to have an AABB for the use in the broad phase only? It seems to me like simply placing a circle at the body's centroid, and extending the radius to where the circle encompasses the entire body would be optimal. This would not need to be updated after the body rotates and broad overlap-calculation would be faster to. Correct? Bonus: Would a bounding ellipse be practical for broad phase calculations also, since it would better represent long, skinny shapes? Or would it require extensive calculations, defeating the purpose of broad-phase?

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  • CodePlex Daily Summary for Sunday, March 28, 2010

    CodePlex Daily Summary for Sunday, March 28, 2010New ProjectsFeed Tracker: Feed Tracker allows you to track your favorite feeds (RSS 2.0 and Atom 1.0) and open them up directly in your browser.FIM 2010 Resource Management Client: The Forefront Identity Management 2010 Resource Management Client is a library to communicate with the FIM 2010 web service. The development langu...Infection Protection: A game about controlling disease outbreak in a city. Developed for OGPC 2010, using Qt.OrthoLab: Homepage of Orthocone open-source laboratory.Paragliding ThermalMarker: Paragliding / Hanggliding Windows Application that receives waypoint files and returns only the thermals that get triggered more often in a place.RSSFalls: RssFalls makes it easier for developers to download RSS or Podcast enclosures.String Library for C++ Language: StrLib++ is a string library for C++ language. for now it support only ANSI strings, later Unicode support will added for UT8, UTF16 and UTF32 for...Sweeper: Sweeper is a Visual Studio 2008 add-in for C# that takes care of many of the trivial code-formatting issues that developers run into - particularly...System.Common: A .Net library that provides methods, properties and more that the .Net Framework doesn't provide.Tiveriad: The framework is designed to help you more easily build modular Windows applicationT-Shirts Online: Online shop build in Silverlight 4 using DIBS as payment module.New ReleasesArkSwitch: ArkSwitch v1.1.3: This release has some important changes. Thanks to MichyPrima for helping with some of the code. 1. Improved theming to more easily support multip...Catharsis: Catharsis 2.5 on catarsa.com: The Catharsis framework has finally its own portal http://catarsa.com The latest release version is 2.5 - string names of properties are not any ...EffiProz - A Pure C# Database: EffiProz CF 1.0: EffiProz for .Net compact framework.Encrypted Notes: Encrypted Notes 1.6: This is the latest version of Encrypted Notes (1.6). It has an installer - it will create a directory 'CPascoe' in My Documents. Once you have ext...Extend SmallBasic: Teaching Extensions v.009: Added Pentagon Crazy Recipe QuizGapi.NET - .NET (C#) wrapper for Google API: Gapi.NET 0.5.0.0: - Fixed some minor bugs. - Add minor features. - Performance improvement. See code check-ins for detailed informationHouseFly experimental controls: HouseFly experimental control: Alpha version of HouseFly experimental controlsiTuner - The iTunes Companion: iTuner 1.2.3738 Beta 2: V1.2 allows you to synchronize one or more iTunes playlists to a USB MP3 player. Beta 2 resolves all known issues. This continues the evolution ye...jQuery Library for SharePoint Web Services: SPServices 0.5.4: IMPORTANT NOTE: This release is in an alpha state. You should only download it if you know what you are getting and are interested in testing it f...JSINQ - LINQ to Objects for JavaScript: JSINQ 1.0: This is the first stable release of JSINQ. It is fully compatible with the 0.9 beta release. It contains the following new features: Now supports ...MSBuild Mercurial Tasks: 1.0.0 Beta: First release of the application. This version integrates all the basic functionalities of Mercurial as defined in the Use Case 1.Open Portal Foundation: Open Portal Foundation V1.4.2: What's news? noscript template was updated naming convention for layout autogenerated controls now use the "master" prefix. The documentation ce...Open Portal Foundation: Open Portal Foundation V1.4.4: What's news? ASP .NET Master page support for custom aspx integrated pages New usercontrols for ASCX, ASPX and Master page integration : Link: f...Paint.NET PSD Plugin: 1.5.0: RLE compression is now working fully on save. File sizes are now competitive with Photoshop's. Saving takes about twice as long with RLE compressi...Paragliding ThermalMarker: ThermalMarker_Alfa0.1: Release Alfa 1Simple Service Locator: Simple Service Locator v0.7: The Simple Service Locator is an easy-to-use Inversion of Control library that is a complete implementation of the Common Service Locator interface...String Library for C++ Language: Release 0.9: version 0.9 beta release DO NOT USE IN SERIOUS PROJECTS this release use default application heap, and because visual studio is using special debug...Sweeper: Sweeper Alpha 1: SweeperA Visual Studio Add-in for C# Code Formatting - Visual Studio 2008 Includes: A UI for options, Enable or disable any specific task you want ...T-Shirts Online: 1.0: First release of the online shop.Twilio Server Library for .NET (TSL.NET): v0.1.0 Beta: This is the first release of TSL.NET. This v0.1.0 release is a Beta. Subsequent builds will be posted as v0.1.x and release-candidate Betas will be...Vr30 OS: Facebook 1.0: Connect you to Facebook without your web browser.Vr30 OS: SkyBlog 1.0: SkyBlog without web browser.Vr30 OS: YouTube 1.0: Youtube without web browserWeb Image Resize Handler: Web Image Resize, Zoom, Rotate and Greyscale v.1.0: Efficient Web Image Resize, Zoom, Rotate and Greyscale cacheing handler for ASP.Net.WinXound: WinXound 3.3.0 Beta 1 for Mac OsX: This is the first Beta release for Apple Mac OsX (Universal Binary). DEBUG HELP NEEDED ! Please signal bugs, suggestions or feedback to: stefano_b...Most Popular ProjectsMetaSharpRawrWBFS ManagerASP.NET Ajax LibraryMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitAJAX Control ToolkitLiveUpload to FacebookWindows Presentation Foundation (WPF)ASP.NETMost Active ProjectsRawrjQuery Library for SharePoint Web ServicesManaged Extensibility FrameworkBlogEngine.NETMicrosoft Biology Foundationpatterns & practices: Composite WPF and SilverlightLINQ to TwitterFarseer Physics EngineTable2ClassNB_Store - Free DotNetNuke Ecommerce Catalog Module

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  • Finding the normals of an oriented bounding box?

    - by Milo
    Here is my problem. I'm working on the physics for my 2D game. All objects are oriented bounding boxes (OBB) based on the separate axis theorem. In order to do collision resolution, I need to be able to get an object out out of the object it is penetrating. To do this I need to find the normal of the face(s) that the other OBB is touching. Example: The small red OBB is a car lets say, and the big OBB is a static building. I need to determine the unit vector that is the normal of the building edge(s) the car is penetrating to get the car out of there. Here are my questions: How do I determine which edges the car is penetrating. I know how to determine the normal of an edge, but how do I know if I need (-dy, dx) or (dy, -dx)? In the case I'm demonstrating the car is penetrating 2 edges, which edge(s) do I use to get it out? Answers or help with any or all of these is greatly appreciated. Thank you

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  • How do i start Game programming in windows phone xna?

    - by Ankit Rathod
    Hello, I am very much interested in Game programming in Xna. However during my college days i did not take Physics or Maths. Does that mean i can't create games in xna? I just know basics of trignometry. Can you all point me to few links where i can learn xna as well as the basic stuff of Maths that is bound to be required in most of the games? Are all game programmers excellent in Maths and Physics ? Thanks in advance :)

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  • Clipping polygons in XNA with stencil (not using spritebatch)

    - by Blau
    The problem... i'm drawing polygons, in this case boxes, and i want clip children polygons with its parent's client area. // Class Region public void Render(GraphicsDevice Device, Camera Camera) { int StencilLevel = 0; Device.Clear( ClearOptions.Stencil, Vector4.Zero, 0, StencilLevel ); Render( Device, Camera, StencilLevel ); } private void Render(GraphicsDevice Device, Camera Camera, int StencilLevel) { Device.SamplerStates[0] = this.SamplerState; Device.Textures[0] = this.Texture; Device.RasterizerState = RasterizerState.CullNone; Device.BlendState = BlendState.AlphaBlend; Device.DepthStencilState = DepthStencilState.Default; Effect.Prepare(this, Camera ); Device.DepthStencilState = GlobalContext.GraphicsStates.IncMask; Device.ReferenceStencil = StencilLevel; foreach ( EffectPass pass in Effect.Techniques[Technique].Passes ) { pass.Apply( ); Device.DrawUserIndexedPrimitives<VertexPositionColorTexture>( PrimitiveType.TriangleList, VertexData, 0, VertexData.Length, IndexData, 0, PrimitiveCount ); } foreach ( Region child in ChildrenRegions ) { child.Render( Device, Camera, StencilLevel + 1 ); } Effect.Prepare( this, Camera ); // This does not works Device.BlendState = GlobalContext.GraphicsStates.NoWriteColor; Device.DepthStencilState = GlobalContext.GraphicsStates.DecMask; Device.ReferenceStencil = StencilLevel; // This should be +1, but in that case the last drrawed is blue and overlap all foreach ( EffectPass pass in Effect.Techniques[Technique].Passes ) { pass.Apply( ); Device.DrawUserIndexedPrimitives<VertexPositionColorTexture>( PrimitiveType.TriangleList, VertexData, 0, VertexData.Length, IndexData, 0, PrimitiveCount ); } } public static class GraphicsStates { public static BlendState NoWriteColor = new BlendState( ) { ColorSourceBlend = Blend.One, AlphaSourceBlend = Blend.One, ColorDestinationBlend = Blend.InverseSourceAlpha, AlphaDestinationBlend = Blend.InverseSourceAlpha, ColorWriteChannels1 = ColorWriteChannels.None }; public static DepthStencilState IncMask = new DepthStencilState( ) { StencilEnable = true, StencilFunction = CompareFunction.Equal, StencilPass = StencilOperation.IncrementSaturation, }; public static DepthStencilState DecMask = new DepthStencilState( ) { StencilEnable = true, StencilFunction = CompareFunction.Equal, StencilPass = StencilOperation.DecrementSaturation, }; } How can achieve this? EDIT: I've just relized that the NoWriteColors.ColorWriteChannels1 should be NoWriteColors.ColorWriteChannels. :) Now it's clipping right. Any other approach?

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  • Out of Memory when building an application

    - by Jacob Neal
    I have quite a major problem with my Multimedia Fusion 2 game. I finished it months ago, however, the only thing keeping me from finally compiling the game into an executable file is this error message that pops up every time I try to, simply saying, "Out of Memory". Its highly frustrating to be halted at this point by this message, and I tried everything I could come up with to fix it including compressing the runtime and sounds and increasing the proity of MMF2 all the way to realtime in the task manager. Im begging someone to toss me a bone on this problem, and any advice at all would be much appreciated.

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  • Bodies do not stay sticked together by joint in retina display

    - by Mike JM
    I'm rehearsing on Box2D revolute joints. Everything's going pretty well except for one thing. For some reason bodies joined together with revolute joints do not stay sticked, they start getting apart from each other from the app start when I run it on retina device or simulator. On non retina device it works just fine, as expected. Here's the screenshot of the non-retina version: And here's the behavior when I run the same app on retina device/simulator: I'm taking content scale factor into account.

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  • XNA - Drawing 2D Primitives (Boxes) and Understanding Matrices in Computer Graphics

    - by MintyAnt
    I have two issues which I wish to solve by creating 2D primitives in XNA. In my game, I wish to have a "debug mode" which will draw a red box around all hitboxes in the game (Red outline, transparent inside). This would allow us to see where the hitboxes are being drawn AND still have the sprite graphics being drawn. I wish to further understand how matrices work within computer graphics. I have a basic theoretical grasp of how they work, but I really just want to apply some of my knowledge or find a good tutorial on it. To do this, I wish to draw my own 2D primitives (With Vertex3's) and apply different transormation matrices to them. I was trying to find a tutorial on drawing primitives using Direct3D, but most tutorials are only for c++, and just tell me to use XNA's Spritebatch. I wish to have more control over my program than just with Spritebatch. Any Help on using Direct3D or any other suggestions would greatly be appreciated. Thank you.

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  • Character Stats and Power

    - by Stephen Furlani
    I'm making an RPG game system and I'm having a hard time deciding on doing detailed or abstract character statistics. These statistics define the character's natural - not learned - abilities. For example: Mass Effect: 0 (None that I can see) X20 (Xtreme Dungeon Mastery): 1 "STAT" Diablo: 4 "Strength, Magic, Dexterity, Vitality" Pendragon: 5 "SIZ, STR, DEX, CON, APP" Dungeons & Dragons (3.x, 4e): 6 "Str, Dex, Con, Wis, Int, Cha" Fallout 3: 7 "S.P.E.C.I.A.L." RIFTS: 8 "IQ, ME, MA, PS, PP, PE, PB, Spd" Warhammer Fantasy Roleplay (1st ed?): 12-ish "WS, BS, S, T, Ag, Int, WP, Fel, A, Mag, IP, FP" HERO (5th ed): 14 "Str, Dex, Con, Body, Int, Ego, Pre, Com, PD, ED, Spd, Rec, END, STUN" The more stats, the more complex and detailed your character becomes. This comes with a trade-off however, because you usually only have limited resources to describe your character. D&D made this infamous with the whole min/max-ing thing where strong characters were typically not also smart. But also, a character with a high Str typically also has high Con, Defenses, Hit Points/Health. Without high numbers in all those other stats, they might as well not be strong since they wouldn't hold up well in hand-to-hand combat. So things like that force trade-offs within the category of strength. So my original (now rejected) idea was to force players into deciding between offensive and defensive stats: Might / Body Dexterity / Speed Wit / Wisdom Heart Soul But this left some stat's without "opposites" (or opposites that were easily defined). I'm leaning more towards the following: Body (Physical Prowess) Mind (Mental Prowess) Heart (Social Prowess) Soul (Spiritual Prowess) This will define a character with just 4 numbers. Everything else gets based off of these numbers, which means they're pretty important. There won't, however, be ways of describing characters who are fast, but not strong or smart, but absent minded. Instead of defining the character with these numbers, they'll be detailing their character by buying skills and powers like these: Quickness Add a +2 Bonus to Body Rolls when Dodging. for a character that wants to be faster, or the following for a big, tough character Body Building Add a +2 Bonus to Body Rolls when Lifting, Pushing, or Throwing objects. [EDIT - removed subjectiveness] So my actual questions is what are some pitfalls with a small stat list and a large amount of descriptive powers? Is this more difficult to port cross-platform (pen&paper, PC) for example? Are there examples of this being done well/poorly? Thanks,

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  • Setting effects variables in XNA

    - by Badescu Alexandru
    Hello ! I am currently reading a book named "3D Graphics with XNA Game Studio 4.0" by Sean James and have some questions to ask : If i create a effect parameter named lets say SpecularPower and have in my effect a variable named SpecularPower , if i do something like effect.Parameters["SpecularPower"].SetValue(3) That wil change the SpecularPower variable in my effect ? And a second question, not regarding the book : If i have a spaceship and i've created a "boost" functionality that speeds up my spaceship, what effects should i implement to create the impresion oh high speed ? I was thinking of making everything except my spaceship blurry but i think there would be something missing . Any ideas ? Regards, Alex Badescu

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  • about httpd.conf

    - by nightingale2k1
    Hi I'm starting to learn symfony for php framework and I got problem with httpd.conf configuration. First, I have xampplite installed on my windows c:\xampplite\ and then I created a symfony project (as described on getting started guide) c:\xampplite\htdocs\symfonytest\ Everything works fine when I tried to access http://localhost/symfonytest/web/ (all icons and text are displayed pretty well) Now I got to configure the httpd.conf and I type like this: <VirtualHost 127.0.0.1/symfonytest> DocumentRoot "c:\xampplite\htdocs\symfonytest\web" DirectoryIndex index.php <Directory "c:\xampplite\htdocs\symfonytest\web"> AllowOverride All Allow from All </Directory> Alias /sf c:\xampplite\htdocs\symfonytest\web\sf <Directory "c:\xampplite\htdocs\symfonytest\web\sf"> AllowOverride All Allow from All </Directory> But it has no effect at all ... when I type http://127.0.0.1/symfonytest/ it still displayed directory list of my c:\xampplite\htdocs\symfonytest\ How to solve this httpd.conf problem? Thank you !!!

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  • Converting from different handedness coordinate systems

    - by SirYakalot
    I am currently porting a demo from XNA to DirectX which, as I understand it, both have coordinate systems with different handednesses. What are the things I need to bare in mind when converting between the two? I understand not everything needs to be changed. Also I notice that many of the 3D maths functions in some of the direct3D libraries have right handed and left handed alternatives. Would it be better to just use these?

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  • Python rpg adivce? [closed]

    - by nikita.utiu
    I have started coding an text rpg engine in python. I have basic concepts laid down, like game state saving, input, output etc. I was wondering how certain scripted game mechanics(eg. debuffs that increase damage received from a certain player or multiply damage by the number of hits received, overriding of the mobs default paths for certain events etc) are implemented usually implemented. Some code bases or some other source code would be useful(not necessarily python). Thanks in advance.

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  • BlitzMax - generating 2D neon glowing line effect to png file

    - by zanlok
    Originally asked on StackOverflow, but it became tumbleweed. I'm looking to create a glowing line effect in BlitzMax, something like a Star Wars lightsaber or laserbeam. Doesn't have to be realtime, but just to TImage objects and then maybe saved to PNG for later use in animation. I'm happy to use 3D features, but it will be for use in a 2D game. Since it will be on black/space background, my strategy is to draw a series of white blurred lines with color and high transparency, then eventually central lines less blurred and more white. What I want to draw is actually bezier curved lines. Drawing curved lines is easy enough, but I can't use the technique above to create a good laser/neon effect because it comes out looking very segmented. So, I think it may be better to use a blur effect/shader on what does render well, which is a 1-pixel bezier curve. The problems I've been having are: Applying a shader to just a certain area of the screen where lines are drawn. If there's a way to do draw lines to a texture and then blur that texture and save the png, that would be great to hear about. There's got to be a way to do this, but I just haven't gotten the right elements working together yet. Any help from someone familiar with this stuff would be greatly appreciated. Using just 2D calls could be advantageous, simpler to understand and re-use. It would be very nice to know how to save a PNG that preserves the transparency/alpha stuff. p.s. I've reviewed this post (and many many others on the Blitz site), have samples working, and even developed my own 5x5 frag shaders. But, it's 3D and a scene-wide thing that doesn't seem to convert to 2D or just a certain area very well. I'd rather understand how to apply shading to a 2D scene, especially using the specifics of BlitzMax.

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