RE: [hlcoders] Models and sequences

[Eric Smith]

I'm attaching some sample source code to expose the appropriate server
blending interface to the engine.

Like Adrian said, if you're doing custom player model blending on the
client, you need to mirror that blending on the server or your hitboxes will
not match.

-Eric

-----Original Message-----
From: Adrian Finol [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 24, 2002 9:57 AM
To: 'David Flor '; '[EMAIL PROTECTED] '
Subject: RE: [hlcoders] Models and sequences

 Same way you do on the client, but this time you apply your transformations
to the server side partners of the cliet StudioModelRenderer. It's all on
animation.cpp.

-----Original Message-----
From: David Flor
To: [EMAIL PROTECTED]
Sent: 1/24/02 8:40 AM
Subject: RE: [hlcoders] Models and sequences

You know, it never dawned on me that that could be the cause of some of
the hit detection issues in my mod. 

OK, so refresh my memory: how do I define the transformations on the
SERVER?

Tnx & Rgds...
David "Nighthawk" Flor ( [EMAIL PROTECTED] )
Lead Programmer, The Persistence Engine - http://www.persistengine.com/
Lead Programmer, "The Opera" - http://opera.redeemedsoft.com/
President, Mach III Enterprises

"When Alexander saw the breadth of his domain he wept for there were no
more worlds to conquer..."

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Adrian Finol
Sent: Wednesday, January 23, 2002 11:31 PM
To: Ken Birdwell; ''[EMAIL PROTECTED]' '
Subject: RE: [hlcoders] Models and sequences


 One thing to remember is that any transformation applied to the model
client side has to be duplicated on the server in order to mantain hit
detection in order.

 We had this problem with CS, where the client was doing all the
blendings ( 9 to be exact ) while the server had no idea about what was
going on. Hence the old CS hitbox problem.

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// common\r_studioint.h


// server blending
#define SV_BLENDING_INTERFACE_VERSION 1

typedef struct sv_blending_interface_s
{
        int     version;

        void    ( *SV_StudioSetupBones )( struct model_s *pModel, 
                                        float frame,
                                        int sequence,
                                        const vec3_t angles,
                                        const vec3_t origin,
                                        const byte *pcontroller,
                                        const byte *pblending,
                                        int iBone,
                                        const edict_t *pEdict );
} sv_blending_interface_t;

// dlls\animation.cpp

#include "com_model.h"
#include "r_studioint.h"

void SV_StudioSetupBones( struct model_s *pModel, float frame, int sequence, const 
vec3_t angles, const vec3_t origin, const byte *pcontroller, const byte *pblending, 
int iBone, const edict_t *pEdict );

// The simple blending interface we'll pass back to the engine
sv_blending_interface_t svBlending = 
{
        SV_BLENDING_INTERFACE_VERSION,
        SV_StudioSetupBones
};

// Global engine <-> studio model code interface
server_studio_api_t IEngineStudio;

studiohdr_t *g_pstudiohdr;

float (*g_pRotationMatrix)[3][4];

float (*g_pBoneTransform)[MAXSTUDIOBONES][3][4];

/*
====================
Server_GetBlendingInterface

Export this function for the engine to use the blending code to blend models
====================
*/
#ifdef _WIN32

extern "C" int __declspec( dllexport ) Server_GetBlendingInterface( int version, 
struct sv_blending_interface_s **ppinterface, struct engine_studio_api_s *pstudio, 
float (*rotationmatrix)[3][4], float (*bonetransform)[MAXSTUDIOBONES][3][4] )

#else

extern "C" int Server_GetBlendingInterface( int version, struct 
sv_blending_interface_s **ppinterface, struct engine_studio_api_s *pstudio, float 
(*rotationmatrix)[3][4], float (*bonetransform)[MAXSTUDIOBONES][3][4] )

#endif
{
        if ( version != SV_BLENDING_INTERFACE_VERSION )
                return 0;

        // Point the engine to our callback
        *ppinterface = &svBlending;

        // Copy in engine helper functions
        memcpy( &IEngineStudio, pstudio, sizeof( IEngineStudio ) );

        g_pRotationMatrix = rotationmatrix;

        g_pBoneTransform = bonetransform;

        // Success
        return 1;
}

.
.
.

// blending function used by the server to blend the models (for hitbox purposes)
void SV_StudioSetupBones( struct model_s *pModel, float frame, int sequence, const 
vec3_t angles, const vec3_t origin, const byte *pcontroller, const byte *pblending, 
int iBone, const edict_t *pEdict )
{
        // your blending code here...
.
.
.
}