Pointer to matrix

[zak]

If my mesh use the same matrix as the physics body i am forced to create a matrix for the mesh and copy the body mesh every frame with transform callback.
Is it possible to have a const float* NewtonBodyGetMatrixPointer() so
- no matrix duplication
- no callback transform call and coping overhead

[Julio Jerez]

no, getting pointers to internal data is a really bad programing practice.
copying a matrix is no really a big deal.

plus the physics representation of the matrix as the visual matrix is in fact rare.
most engine separate physics simulation rate form graphics rate and interpolate between then, so they are decoupled.

believe me it may sound like a good optimization, but it comes with lots of problems and after all is not really a big game.

[pHySiQuE]

Just declare a float array:
float mat[16];

Easy.

[manny]

locking this.

btw, it's always a good idea to keep your object data local and tightly packed or you will have guaranteed cache misses.