DirectX 11 is the latest release of Microsoft's collection of APIs which contain features to aid in game development.
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What happened to .fx files in D3D11?
It seems they completely ruined .fx file loading / parsing in D3D11.
In D3D9, loading an entire effect file was D3DXCreateEffectFromFile( .. ), and you got a ID3DXEffect9, which had great methods ...
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0answers
47 views
DirectWrite Producing Strange Artifacts?
I've written the basis to my UI system around Direct2D. I like it because it's fast and easy to use (even if I had to do some messy work to get it to work with DirectX11). However, I notice when using ...
6
votes
2answers
972 views
What advantages does DirectX 11 have over DirectX 10?
What advantages does DirectX 11 have over DirectX 10? Most of the new features seemed to be for directcompute from what I can tell, and how much more are you limiting your market by if you use DX11 ...
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1answer
150 views
Why does setting a geometry shader cause my sprites to vanish?
My application has multiple screens with different tasks. Once I set a geometry shader to the device context for my custom terrain, it works and I get the desired results.
But then when I get back to ...
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vote
1answer
1k views
SV_POSITION in pixel shader
What are the uses for SV_POSITION in the pixel shader? Previously this was the POSITION semantic and it wasn't readable in the pixel shader, but now that it is, what can it be used for?
In an SM2 ...
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2answers
113 views
How can I simulate multiple depth channels?
Here's what I'd like to achieve:
Rendering a first pass of objects in my scene, using standard depth comparison
Rendering another pass of objects in the same scene, but with the following rules:
A ...
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votes
4answers
628 views
Access violation in DirectX OMSetRenderTargets
I receive the following error when running the Triangle sample application for DirectX 11 in D3D_FEATURE_LEVEL_9_1:
Unhandled exception at 0x527DAE81 (d3d11_1sdklayers.dll) in ...
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vote
1answer
498 views
Question about mipmaps + anisotropic filtering
I'm a bit confused here and maybe someone can explain this to me. I created a simple test texture for my terrain which is nothing more than a solid green color with a black grid overlayed on top of ...
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1answer
98 views
Can I animate render targets or the swap chain?
I want to animate some synthetic video bits to fullscreen w/o tearing. Can I set up D3D 9/10/11 in exclusive mode, and have it present a series of buffers that I'm writing to?
I know how to copy ...
0
votes
1answer
472 views
Render full-screen gradient or texture
What's the simplest way to fill the background of the screen with a gradient or a texture in Direct3D 10/11?
I'm building a Windows 8 metro app in which the camera never moves and I render some ...
4
votes
1answer
681 views
What do I need to reload after a device reset?
Is there a complete list of resources that need to be reloaded after a device reset? I want to make sure I'm not missing anything.
Also, should I reload them from disk each time, or do I want to make ...
3
votes
1answer
1k views
D3D11 Multiple Render Targets
I wanted to try rendering to multiple render targets as a first step to deferred shading, but I'm getting somewhat peculiar behavior where the contents of all render targets are the same as the first ...
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0answers
139 views
DX11 - Compute shader - wrong index calculation
I have volume (3D image) divided into blocks 16x16x16. Whole volume is 128x128x128. Data are stored in linear memory in my shader.
For every block, i store start index within linear memory. Now, I ...
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0answers
306 views
Geometry Shader and Stream Output with Directx11
I am having trouble trying to send verticies generated in the Geometry Shader to Stream Output. What I am trying to accomplish is to generate verticies from the Geometry Shader and store them to a ...
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votes
2answers
1k views
Adapting DirectX samples to SlimDX
I'm trying to learn DirectX and SlimDX but I'm having a terrible time getting started.
I'm taking the Triangle tutorial and trying to add color and transformations.
Starting with controlling color, ...
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vote
1answer
224 views
What are the tessellation factors Direct3D11?
I don't quite understand the documentation but if I was to tessellate a mesh using 3 control points in Direct3D11 with the "tri" domain am I right in thinking that
SV_TessFactor is how many times to ...
3
votes
1answer
793 views
What are the valid DepthBuffer Texture formats in DirectX 11? And which are also valid for a staging resource?
I am trying to read the contents of the depth buffer into main memory so that my CPU side code can do Some Stuff™ with it.
I am attempting to do this by creating a staging resource which can be read ...
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vote
2answers
450 views
Why does calling CreateDXGIFactory prevent my program from exiting?
I'm using CreateDXGIFactory to get the graphics adapters and display modes. When I call it, it works fine and I get all the data. However, when I exit my program, the main Win32 thread exits, but ...
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1answer
459 views
E_FAIL: An undetermined error occurred (-2147467259) when loading a cube texture
I'm trying to implement a skybox into my engine, and I'm having some trouble loading the image as a cube map. Everything works (but it doesn't look right) if I don't load using an ...
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1answer
2k views
Where have the Direct3D 11 tutorials on MSDN have gone?
I've had this tutorial bookmarked for ages. I've just decided to give DX11 a real go, so I've gone through that tutorial, but I can't find where the next one in the series is!
There are no links from ...
5
votes
1answer
559 views
Memory allocation strategy for the vertex buffers (DirectX 10/11)
I'm writing a CAD system. I have a 3D scene and there are many different objects (walls, doors, windows and so on). The user can add or delete objects.
The question is: How do I keep track of all the ...
4
votes
1answer
329 views
Per-vertex position/normal and per-index texture coordinate
In my game, I have a mesh with a vertex buffer and index buffer up and running. The vertex buffer stores a Vector3 for the position and a Vector2 for the UV coordinate for each vertex. The index ...
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3answers
2k views
Should I go with OpenGL to see my future in Game Development industry? [duplicate]
Possible Duplicate:
Should I continue studying OpenGL or just switch to DirectX to give me a better chance of landing a job in the game industry?
I tried Google but found quite old ...
5
votes
2answers
2k views
How can I convert an OBJ model into arrays of vertices and indices?
I'm writing a simple model loader just to learn how models are loaded. I wrote a program to convert .OBJ files in a custom format. (It's virtually exactly the same as .OBJ, I wrote it once again just ...
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0answers
203 views
D3DX11CreateShaderResourceViewFromFile returns E_FAIL
When trying to create a texture, my call to D3DX11CreateShaderResourceViewFromFile keeps returning E_FAIL. To me that's about as generic as it gets, and I can't figure the problem out. The code looks ...
2
votes
1answer
903 views
Loading textures with SharpDX in Metro
I have converted my C# game from OpenTK (OpenGL) to SharpDX (DirectX) and have it up and running from Visual Studio 2010. I also have it up and running from Visual Studio 11 in Metro, in the Windows 8 ...
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votes
1answer
241 views
Why does my game not update unless I'm moving the mouse?
I'm pretty confused by what's happening. Now that I've finally put something moving on my screen, I notice it doesn't update unless I move the mouse, or press a key, or trigger other events.
Using ...
3
votes
1answer
1k views
Managing Shaders and Objects in DirectX 11
The title explains my two biggest logical problems with developing a game. It's something I sit up at night thinking about, and that is "What is the most effective way to manage shaders" and "What is ...
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vote
1answer
111 views
Drawback of using multiple bind flags
As far as I understand Direct3D 11 I have to specify certain BindFlags in order to use a resource in a specific stage of the pipeline.
From my experience some combinations are more common like ...
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0answers
265 views
Working on C++ and DX11. What should I learn next to make simple (and complex) games? [closed]
I think video games are great and I have many ideas I want to work on. I'm about 40% through a year long course in C++ and it is very fun and starting to be useful (now that we are using classes). ...
3
votes
2answers
518 views
How to deal with large depth buffer values due to extreme distances
Alright, this is semi-related to my last question here
So I've got an really big coordinate system and need to handle rendering large astral bodies from extreme distances. My current approach ...
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votes
2answers
587 views
Is the output from D3DCompile specific to one GPU, or not?
In Direct3D 11 there is a two-stage shader compilation process; you first pass the HLSL source code into D3DCompile, which outputs a "blob" of bytecode. You then take this blob and call ...
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votes
1answer
915 views
What is the AlphaToCoverage blend state useful for?
Alright, just finished most of my early UI stuff and I wanted the windows to have some transparency. So I expanded my application to initialize and bind blend states so that my UI shader could ...
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votes
1answer
319 views
Determine the stride of a DirectX Texture2D line?
Is there a way to determine, or preferably calculate/predict, the the stride of a line of a DirectX 11 Texture2D resource when using SharpDX?
(E.g. Can we say the stride of a line is always a power ...
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votes
1answer
1k views
Why can't I write to my render targets?
Alright, been working on setting up my first deferred rendering attempt using a light prepass technique in Direct3D 11.
Anywho, I've been having problems understanding and using render targets. Never ...
5
votes
3answers
854 views
Which of these DirectX11 calls actually sends data to the GPU?
I'm trying to learn graphics programming and DirectX11.
I'm trying to learn how to minimize CPU-GPU transfer and graphics programming in general.
I have a question that I have been unable to answer ...
4
votes
1answer
512 views
How to fix odd artifacts at the edges of textures in DirectX 11?
In my DirectX 11 project, when I have textures they have odd artifacts at the edges. I've seen it before and searched online, but I can't find any DirectX examples that I can get to work.
You can ...
0
votes
1answer
553 views
Real-Time Terrain Deformation
I can't really find anything at all on this topic. There's a bunch of YouTube videos that show people doing it, but there aren't any articles that I can find explaining the mechanics of it. In my ...
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vote
3answers
174 views
Extracting blend values from uint32 not working as expected
I have the following shader configuration code :
uint gBlendValue = 0xffffff00;
Terrain.Effect.GetVariableByName("gBlendValue").AsScalar().Set(gBlendValue);
And I have the following shader code :
...
4
votes
2answers
1k views
How can I draw dashed or dotted lines with a pixel shader?
I am trying to draw the 2D graphics (like line, polyline, polygon etc.) using Direct3D for drawing I am using LINE_LIST. Now I want to make the lines thicker and apply patterns to the line as ...
5
votes
3answers
944 views
What features does D3D have that OpenGL does not (and vice versa)?
Are there any feature comparisons on Direct3D 11 and the newest OpenGL versions?
Well, simply put, Direct3D 11 introduced three main features (taken from Wikipedia):
Tessellation
Multithreaded ...
2
votes
1answer
912 views
Why can I not map a dynamic texture in D3D?
I am trying to map a Texture2D resource in DirectX11 via SharpDX.
The resource is declared as a ShaderResource, with Dynamic usage and the 'Write' CPU flag specified.
My call however fails with a ...
1
vote
1answer
374 views
Marshalling C# Structs into DX11 cbuffers
I'm having some issues with the packing of my structure in C# and passing them through to cbuffers I have registered in HLSL. When I pack my struct in one manner the information seems to be able to ...
0
votes
1answer
398 views
Why are my scene's depth values not being written to my DepthStencilView?
I'm rendering to a depth map in order to use it as a shader resource view, but when I sample the depth map in my shader, the red component has a value of 1 while all other channels have a value of 0.
...
2
votes
1answer
362 views
Hemicube algorithm d3d9 or d3d11, float valued colors
The hemicube algorithm renders the scene to 5 sides of a half-cube, from the perspective of each polygon.
Assume you place the hemicube around me and render to the 5 sides. The idea is, we can see ...
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1answer
4k views
How did you learn DirectX 11? [closed]
How did you learn the DirectX 11 API? MSDN documentation, tutorials, blogs, sample applications, books, etc?
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2answers
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Why would you want multiple render targets?
In d3d11, you can bind multiple render targets ID3D11DeviceContext::OMSetRenderTargets. But why would you want to do this?
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votes
1answer
1k views
How do I create a CPU read/write buffer in SlimDX (what are the legal combinations of Usage and CPUAccess flags)?
Currently, I create a vertex buffer in SlimDX like so:
SlimDX.Direct3D11.BufferDescription Description = new SlimDX.Direct3D11.BufferDescription();
Description.BindFlags = ...
5
votes
1answer
4k views
DirectX11, how do I manage and update multiple shader constant buffers?
Alright, I'm having a hard time grasping how constant buffers are bound to a pipeline stage and updated. I understand that DirectX11 can have up to 15 shader-constant buffers per stage and each buffer ...
0
votes
1answer
490 views
D3D11 - Setting multiple ID3D11SamplerStates for the pixel shader stage once and leaving them be
In my Direct3D 11 application, I am using several sampler states to retrieve texture data. Some of them are used in all pixel shaders, some of them are only used in very specific ones.
The question ...
