The directx10 tag has no wiki summary.
10
votes
3answers
712 views
Why are triangle fans not supported in Direct3D 10 or later?
http://msdn.microsoft.com/en-us/library/windows/desktop/bb206271(v=vs.85).aspx
Why? Are there inherent drawbacks to working with triangle fans?
10
votes
1answer
801 views
Simple Terrain Rendering
For some reason I can not find a good example of terrain rendering, as in like "bare bones". Im reading Introduction to game Programming with DX10, and i've seen some other tutorials....but they all ...
9
votes
4answers
497 views
Avoid if statements in DirectX 10 shaders?
I have heard that if statements should be avoid in shaders, because both parts of the statements will be execute, and than the wrong will be dropped (which harms the performance).
It's still a ...
8
votes
1answer
565 views
How can I implement a renderer that can draw many kinds of primitives?
This is somewhat linked to a question I previously asked concerning the drawing of indexed primitives.
My problem was that I was only drawing one cube when I wanted to draw many. I was told that the ...
6
votes
2answers
981 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 ...
5
votes
3answers
692 views
How to run DirectX10 on non-compatible hardware?
I'm going to be away for a little bit, bringing my netbook with me to do some basic DirectX10 stuff.
How can I run DX10 on DX9.0c hardware?
5
votes
4answers
197 views
Is there any guarantee about the graphical output of different GPUs in DirectX?
Let's say that I run the same game in two different computers with different GPUs.
If for example they are both certified for DirectX 10. Is there a guarantee that the output for a given program ...
5
votes
1answer
2k views
XNA or SlimDX (DirectX 10) for multitouch rhythm game simulator
I'm looking to develop a multitouch rhythm game in C#. It is aimed to be a simulator for an existing arcade game, similar to this: http://www.youtube.com/watch?v=TAiNNpA3wwg So far, I've decided on ...
5
votes
2answers
2k views
Direct2d off-screen rendering and hardware acceleration
I'm trying to use direct2d to render images off-screen using WindowsAPICodePack. This is easily achieved using WicBitmapRenderTarget but sadly it's not hardware accelerated.
So I'm trying this route:
...
5
votes
1answer
562 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 ...
5
votes
1answer
189 views
C++ unmanaged inside winform
First: I am using C# and C++ on windows 7.
I have created a basic rendering engine in c++ with directx 10. It works good as a stand alone application. But, when I sending the Form.Handle of a WinForm ...
5
votes
1answer
514 views
On Creating a D3DX10 texture atlas
I have a DirectX10 texture (ID3D10Texture2D) that I load from disk with the following code:
CComPtr<ID3D10Device> spD3D; // Initialized correctly elsewhere
hr = D3DX10CreateTextureFromFile(
...
4
votes
1answer
760 views
What is instancing, and how can I update my graphics code to do it?
This question directly follows on from this one:
How can I implement a renderer that can draw many kinds of primitives?
I have a small amount of drawing code structured in the following way:
A mesh ...
4
votes
2answers
233 views
How do I use D3DXVec3Unproject with D3D11?
I'm having a small issue with D3DXVec3Unproject. I'm currently using Direct3D 11 and not 10, and the signature for this function is:
D3DXVECTOR3 *pOut, CONST D3DXVECTOR3 *pV, CONST D3D10_VIEWPORT ...
4
votes
1answer
156 views
Running geometry shader only once
(Unfortunately couldn't find the answer myself)
Does a neat way to cache the geometry shader results in Direct3D10 or OpenGL exist? (preferably Direct3D10).
I'm building my geometry based on texture ...
4
votes
1answer
229 views
Why does PIX suggest my frames are rendering out of order?
When my application goes into a fullscreen state my movement is not smooth. It seems like frames are not rendered in the correct order, doing something like: 1, 3, 2, 4, 6, 5, ...
making the movement ...
3
votes
2answers
760 views
Where have the cross and dot products gone in DirectX10?
In D3D9 there were functions to deal with D3DXVECTOR3's in order to calculate dot and cross products. However these have disappeared from the math library in D3D10.
I assume they must have gone ...
3
votes
1answer
257 views
Pass large array to pixel shader
I am trying to write a Pixelshader for a curve effect in Direct2d.
A curve effect maps each color channel value to a different value by using a look up table.
For this effect I would need to pass 3 ...
3
votes
1answer
272 views
Proper use of Dynamic Vertex Buffers for rapid update
I am creating a C#/SharpDx/DirectX10 application to plot line charts in a fast way.
I have a prototype which uses Dynamic Vertex Buffers and fills a fixed-size buffer, say 1M vertices, with new data ...
3
votes
1answer
484 views
Write depth buffer to texture
I need to read depth buffer from GPU and write it to texture. How this can be done?
Here is how texture for depth buffer is created:
depthBufferDesc.Width = screenWidth;
depthBufferDesc.Height = ...
3
votes
2answers
775 views
How to fix issue with my 3D first person camera? [closed]
My camera moves and rotates, but relative to the worlds origin, instead of the players. I am having difficulty rotating the camera and then translating the camera in the direction relative to the ...
2
votes
3answers
759 views
simplest way of making a sphere roll in a realistic way
rather than just moving a sphere across a plane, I want to make it roll like a ball. What is the simplest way of doing this? I assume it will have something to do with the circumference of the ball ...
2
votes
2answers
224 views
The Correct Usage of DLLs with a DirectX Game?
I'm using DirectX 10 (in C++) to make a game engine, and a test driver program on top of it.
Now that I've written many messy rough drafts of an engine, I want to make the final (or sorta final) ...
2
votes
2answers
615 views
Converting from different handedness coordinate systems
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 ...
2
votes
1answer
641 views
What 3d mesh formats usable with DirectX10 are there?
I want to load a mesh into my game (written in C#, if this matters) but am not sure what mesh format to use. What mesh formats are there, how easy/hard it is to load them into DirectX10 and what's the ...
2
votes
1answer
135 views
Multiple passes in direct3d10
I begin to learning direct3d10 and stuck with multiple passes. As input I have a triangle(that stored in vb/ib) and effect file:
//some vertex shader and globals goes there. skip them to preserve ...
2
votes
2answers
429 views
HLSL: how to get/set effectvariable to an array of structs with Direct3D10
HLSL Code:
//Lights
struct Light
{
float3 pos;
float3 dir;
int type;
} m_aLights[3];
How can I get/set an effectvariable to m_aLights with Direct3D10?
Thanks
2
votes
2answers
1k views
Why isn't my mouse input working as expected in a DX10 game?
I've made myself a camera for a DirectX 10 game, and the keyboard control works fine. However, I can't see to get the mouse to work. My biggest problem is I can't find out how to hide the mouse on the ...
2
votes
1answer
587 views
Mesh with Alpha Texture doesn't blend properly
I've followed example from various place regarding setting OutputMerger's BlendState to enable alpha/transparent texture on mesh. The setup is as follows:
var transParentOp = new ...
2
votes
2answers
1k views
How to load a mesh from the .X-format in DirectX10 via SlimDX?
As of DirectX10, the usual functions to load a mesh in the .X-format are marked as deprecated and they are DX9 functions anyway. How can I load a mesh from the .X-format into an ID3DX10Mesh object ...
2
votes
1answer
482 views
Reading from a staging 2D texture array in DirectX10
I have a DX10 program, where I create an array of 3 16x16 textures, then map, read, and unmap each subresource in turn. I use a single mip level, set resource usage to staging and CPU access to read. ...
1
vote
2answers
631 views
How do I use D3DXVec3Normalize()?
It accepts two parameters, the first is an out parameter - a pointer type, so a referenced variable or a pointer to a variable - the second parameter is an in parameter of the same type but const.
...
1
vote
3answers
1k views
Converting DirectX 9 code to DirectX 10
Preface:
I purchased Programming an RTS in DirectX recently, and I know the code uses DirectX 9, but it has fantastic reviews and is apparently one of the best books you can get on beginning ...
1
vote
1answer
461 views
How can I extend this graphics code to draw more vectors of vertices?
I want to include the drawing of other vectors of vertices in the following code, in a number of places it seems easy enough to simply add or multiply size()s of the two vectors, for instance in the ...
1
vote
1answer
230 views
screen coordinate not working with pixel values
I have a very simple effect file shown below. I am using this to draw 2D lines, however it is not behaving how I expected and I can't seem to get my head round why.
If I draw a line that goes from ...
1
vote
2answers
175 views
temperamental ID3D10EffectVectorVariable
I am setting an HLSL effect variable in the following way in a number of places.
extern ID3D10EffectVectorVariable* pColour;
pColour = pEffect->GetVariableByName("Colour")->AsVector();
...
1
vote
1answer
838 views
How can I draw many objects on screen instead of just one?
Like many beginner graphics programmers I followed a tutorial which showed me how to set up buffer descriptions and fill out the vertex buffer etc... - the steps involved in drawing a simple indexed ...
1
vote
1answer
155 views
Where is ID3D10EffectShaderResourceVariable::SetResourceArray in SlimDX?
I don't know if I'm just not looking in the right place, but I can't find ID3D10EffectShaderResourceVariable::SetResourceArray anywhere in SlimDX.
Anyone have any idea how I should be calling this?
1
vote
1answer
510 views
DirectX10 How to use Constant Buffers
I'm trying to access some variables in my shader, but I think I'm doing this wrong. Say I have a constant buffer that looks like this:
cbuffer perFrame
{
float foo;
float bar;
};
I got an ...
1
vote
1answer
434 views
Dynamic vertex buffer mapping call order
From the book Introduction to 3D Game Programming with DirectX10:
// Update the vertex buffer with the new solution. Vertex* v = 0;
HR(mVB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&v ));
...
1
vote
1answer
471 views
where have the shape drawing functions gone in DirectX10?
such as the CreateTeapot function - http://msdn.microsoft.com/en-us/library/windows/desktop/bb172798(v=vs.85).aspx
Is there an equivalent in DX10? If so, how do I use it?
In DX9 you..
Declared:
...
1
vote
1answer
375 views
what is the absolute simplest way to add physics to a simple 3D game
This physics does not have to be very complex at all.
There are a number of rectangles and one ball, all of which have the appropriate bounding volumes constrained to them, it would be great if the ...
1
vote
1answer
168 views
How can I profile and debug my usage of D3D10?
I've been working on D3D 10 for about 6 months and I have accumulated a basic framework. The thing is I get frame rate spikes.
Even when I have a simple cube on the screen each side with its own ...
1
vote
0answers
60 views
Rotate Points with Object in world space
I posted this in the original stack overflow then realized that a game-dev specific one exists.
I am working on personal project that requires me to have 4 points surrounding an object (1 at each of ...
1
vote
0answers
75 views
InputLayout handling
Where are you supposed to store InputLayout?
Suppose i have some basic structure like.
class Mesh
{
List<MeshPart> MeshParts
}
class MeshPart
{
Effect Effect;
VertexBufferBinding ...
1
vote
0answers
177 views
Batching Homogeneous Render Objects in XNA, 2D Component-Entity Engine?
I've been working on my component-entity engine for about 3 months now, and have managed to get nearly every constituent system working with little effort or compromise. My system has the following ...
0
votes
2answers
183 views
Are my lines instanced?
I have a class which "collects" line mesh transformations throughout the update and then draws them in one place by drawing one line over and over again. I'll post the code below. I'm just wondering ...
0
votes
3answers
2k views
error X3501: 'main': entrypoint not found
I am trying to learn DX10 by following this tutorial. However, my shader won't compile. Below is the detailed error message.
Build started 9/10/2012 10:22:46 PM.
1>Project ...
0
votes
1answer
281 views
D3DXVec3Project returns odd values
I would have thought that if the object is on-screen that this function should return screen coordinates. When used in conjunction with the directX draw text function, it works fine. Textual overlays ...
0
votes
2answers
380 views
DirectX 10 - determining if hardware device is available
I am writing an offline renderer using SlimDX and Direct3D 10 that will need to be run on machines without graphics cards (servers). On these machines, I'll be using the WARP software renderer.
Is it ...
