Horde3D

Only MSVC2008 and GCC/MinGW 4.x are supporting this intrinsic and it isn't included in MSVC2005 and GCC/MinGW 3.x [check out the xmmintrin.h]
We must find an equivalent/macro for this intrinsic, because most of Horde3D guys are using MSVC2005 or GCC/MinGW 3.x and older ones.

We can't use aligned data with functions on MSVC so we must change the following codes :to this :But I'm not sure that this is a safe way to solve this problem.

Anybody have better ideas ?

Atlast I've found the problem, Matrix4f : determinant() function don't works correctly, I'll fix that and search for other bugz

I've placed an incomplete test suite called utmath_tester.zip for utmath, I'll finish that too. I'll be glad if anybody can find any other bugz

EDIT : determinant function don't works correctly because of using pointers to solve the problems with MSVC I've changed them to this :But this will produce a lot of problems with engine in MSVC, anybody knows how to avoid this pointers ?

There aren't any pointers there. There are references, but for some reason they are not const-correct. Change them like this:

_________________
Tristam MacDonald - [swiftcoding]

I've placed a new update to the utMath_rc6 [utMath_rc6.2]. That includes some fixes for MSVC and older compilers.

changes :
-_mm_cvtss_f32 replaced by _mm_cvtss_si32 : but results won't be too accurate because _mm_cvtss_si32 returns int instead of float.
-swiftcoder tipsBut this will produce a lot of errors when compiling the engine using MSVC :

It's too interesting for me that GCC/MinGW 4.x don't produces any errors at all and MSVC 2005 [Pro] is suffering me. I'll continue to find problems with calculations in utMath_rc6. Please report me if you see any bugz or exceptions.

Could you do something like this instead?

No, MSVC reports 196 errors again. Depending on MSDN we can't use aligned data in functionsIMHO we can't solve the problems with MSVC compiler using pointers/references, we must find another way to don't use __declspec in functions.

I know that this is the silliest way to solve this problem but we can add another temporary union and eliminate the Vec3f (__m128 myvec) and other similar constructors. By this way there wouldn't be any problems with aligned data, I'll have a try with this

Hi guys, I've checked the utmath_rc6 and there isn't any problems in calculations [I couldn't find any exceptions] and max diff between returned values of original utmath and utmath_rc6 is ~3.0; Perhaps the problem is anything else and I don't have time to find other problems and fix them

I'm going to focus on Direct3D 9

This is a little offtopic but CPU makers are going to really boost their CPUs. IMHO it's better for us to focus on multithreading and vectorizing our engine using SSE [IntelAVX] more than before !!!

Check out the new Core i7 : Wikipedia, HotHardware, CNET

[Don't worry I'll release the first NOS PACK rc as soon as possible after some house cleaning]

Please help to debug the utMath_rc6.x and optimize the engine. utMath_rc6.x.zip includes utMath_rc6.0, utMath_rc6.1 and utMath_tester [You need the latest compiler in order to compile the rc6.0]

utMath_rc6.2 is available, perhaps this is the final RC version. I've performed some tweaks on the code: the code is a bit faster and results are more accurate than before and there isn't any problems with MSVC [I think].

I'll have a test with utMath_rc6.2 tomorrow, don't forget to use the latest compiler [MinGW/GCC4.x or MSVC2008]

Have fun with engine

Siavash.

First of all HAPPY NEW YEAR ! Excuse me dear swiftcoder, I must do something like the tip that you said. We must use references to solve the Error C2719 with MSVC. [and we need to change some parts of engine][Currently I'm BZ with final exams]

Everybody have a good year

There is a helpful topic on ompf.org about how to solve the problem with aligned data and vector header [std::vector] by using btAlignedObjectArray in Bullet physics library.

Indeed an interesting discussion.

There is a small problem with utMath_rc6.x :
Change this piece of code:to this :