Using D3DXComputeBoundingBox()

Medo Mex · 2013-01-08T04:15:00

Hi, I have been trying to use D3DXComputeBoundingBox() to calculate a box width, length and depth. I have tried the following code, but it's not working: LPD3DXMESH mesh = GetBoxMesh(); BYTE* pData; mesh->LockVertexBuffer( NULL, (LPVOID*)pData ); D3DXVECTOR3 vecMin; D3DXVECTOR3 vecMax; D3DXComputeBoundingBox((D3DXVECTOR3*)pData, mesh->GetNumVertices(), mesh->GetNumBytesPerVertex(), &vecMin, &vecMax); float fWidth = vecMax.x - vecMin.x; float fLength = vecMax.y - vecMin.y; float fDepth = vecMax.z - vecMin.z; mesh->UnlockVertexBuffer(); I'm not getting a valid values for (fWidth, fLength, fDepth), any idea what's wrong?

Graphics and GPU Programming Programming

Started by Medo Mex December 20, 2012 06:36 PM

20 comments, last by Medo Mex 11 years, 4 months ago

ankhd

2,304

January 08, 2013 01:37 AM

No you make one in max to the right size then you work out the scale. Like say in max your box is 5* 5 and in your app it's say 10* 10 then you use that scale difference on all your boxes in max

Medo Mex

891

Author

January 08, 2013 04:15 AM

@ankhd: Althought that can solve the problem, it doesn't solve the main issue which is making a function that load .x file box into bullet physics.

I'm looking for a way to make a method to load the .x file box into bullet physics, I'm using D3DXComputeBoundingBox() to calculate the .x file box size but it doesn't work as expected.

Using D3DXComputeBoundingBox()

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Using D3DXComputeBoundingBox()

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