directx

From this site , which seems to have the most detailed information about Catmull-Rom splines, it seems that four points are needed to create the spline. However, it does not mention how the points p0 and p3 affect the values between p1 and p2. Another question I have is how would you create continuous splines? Would it be as easy as defining the points p1, p2 to be continuous with p4, p5 by making p4 = p2 (that is, assuming we have p0, p1, p2, p3, p4, p5, p6, ..., pN). A more general question is how would one calculate tangents on Catmull-Rom splines? Would it have to involve taking two points

I seem to be having some problems installing the DirectX SDK. Everything seems to be going well during the install, but at the end I get the message: Setup failed. Errors were encountered during installation of redistributable packages. Please close all open programs and try running setup again. If problems persist, contact DirectX Developer Support. Error Code: S1023 Well, I have tried closing all open programs and installing again but I get the same error. What is error code S1023 ? I tried Googling , but found many different responses for how to deal with it and I'm not sure what to do. I

I need to convert a 2D mouse coordinate to a 3D world coordinate based on a specific depth (it's for raycasting). I'm not directly using DirectX in C++, I'm using a proprietary language, but if you give me an answer in C++ or pseudocode (C++ preferred) I can convert it. I have access to the world matrix, view matrix and projection matrix and a variety of matrix manipulation functions. If it's necessary to multiply a vector4 by a matrix4, the only function I have available that takes both a vector4 and a matrix4 is transformVector4(vector4Source,matrix4Source) . I'm not sure which order it

I didn't find any tip about DirectX installation at Inno-Setup web site. So, is there any sample installation script? I know that I have to add to [Run] sction something like this: Filename: "{src}\DirectX\DXSETUP.exe"; WorkingDir: "{src}\DirectX"; Parameters: "/silent"; Check: DirectX; Flags: waituntilterminated; BeforeInstall: DirectXProgress; But how to include it into setup file (temp folder?), how to extract it, ect? To include it in the setup, you can install it to {tmp} and then [Run] it from there. The correct way to install this sort of requirement is to extract in code and call Exec(

I work on a product that uses Managed DirectX for data visualizations. I was trying to upgrade this product to .net framework 4.0, but I think I'm having issues with Managed DirectX and .Net 4.0 playing together. The main assembly does not reference managed directX. But when it tries to call into an assembly that does reference managed directX...everthing "halts". Its like the debugger just decided not to step into the assembly. I get no exception, nothing. And when I hit the pause button, the process is sitting on the call into the assembly that references Managed DirectX. Is there a known

I've looked, and I can't find any material relating to using Direct3d 10 or 11 with MinGW. What do I have to do to get things working? I'm getting errors in the header files supplied by the DX SDK. And don't anyone even think of suggesting Visual Studio. It seems that here it is explained how to get DX headers from SDK work with MinGW: http://d.hatena.ne.jp/tbk/20110115/1295080728 Use Google Translate to translate page to english. Alternatively try using DirectX headers from mingw64 project from here: http://sourceforge.net/projects/mingw-w64/files/ You'll need "Download headers and CRT source