Hello,

Is it possible to do multiple texture blending in 3D Game Studio A8 ? How many maximum number of textures can be used ?

Secondly, is it possible to do vertex manipulation of 3D meshes at run time in 3D Game Studio A8 ?

Thirdly, is it possible to alter UV map off-set or co-ordinates of a 3D mesh at run-time ?

Please guide me where to look in order to implement them.

Thnaks,

hi

if texture blending needed for terrain: terraintex.fx (fixed function effect - alpha blending, no limit) or terraintex3.fx (shader, limited)

mesh vertex manipulation: http://www.conitec.net/beta/ent_getvertex.htm by accessing D3DVERTEX

Hello Sivan,

Thank you for pointing me to the right shader files for texture blending in case of terrains. What about other models - do I have to use shader files in their case too ?

"mesh vertex manipulation: http://www.conitec.net/beta/ent_getvertex.htm by accessing D3DVERTEX" - this thing is not currently in the A8 version, it has been incorporated in the upcoming beta. So I guess I will have to directly use DirectX 9 functions to do the vertex manipulation as you have suggested.

Does anybody know about the third problem - changing the UV map off-set or co-ordinates of a 3D mesh at runtime ?

Thanks,

the manual link is beta, the function is implemented since a6 (afaik)

ent_getvertex is not beta, I use it for terrain deformation. I have no experience with it for models, but must work.
someone definitely tried to apply terrain shaders for models, but don't know results... just try to search this forum.
I'm also interested in the uv manipulation (it must be possible)

ok sivan ...... thank you

@MasterQ32: Thank you too for confirming about the function inclusion in the engine.

hi

I just read another post, and found out that by ent_getvertex it is possible to access the D3DVERTEX pointer of any model/terrain vertex called c.v if:

CONTACT* c = ent_getvertex(entity,NULL,vertex_number);

and as described in atypes.h:

typedef struct {
float x,y,z; // position in DirectX coordinates
float nx,ny,nz; // normal
float u1,v1; // first coordinate set, for textures
float u2,v2; // second coordinate set, for shadow maps
float x3,y3,z3,w3; // third coordinate set, for tangent vector and handedness
#ifdef A8
float tu4,tv4; // 4th coordinate set, for additional data
#endif
} D3DVERTEX;

very similar to mesh deformation, but now c.v.u1 and v1 are what you need (floats!). And then ent_setvertex(entity,c,vertex_number);

Thank you Sivan, I will look into it.