bool hooked_glBegin = false;
typedef void (WINAPI *type_glBegin)(GLenum);
type_glBegin sys_glBegin;
void WINAPI my_glBegin(GLenum mode)
{
     if(cvar.vis_spritemodels.integer == 1)
     {
          cl_entity_t* m_pCurrentEntity;
          model_t* m_pChromeSprite;
          m_pChromeSprite = pEngStudio->GetChromeSprite();
          m_pCurrentEntity = pEngStudio->GetCurrentEntity();
          pEngStudio->SetChromeOrigin();
          pEngStudio->SetForceFaceFlags(0);
          oEngFuncs.pTriAPI->RenderMode(kRenderTransAdd);
          pEngStudio->SetForceFaceFlags(STUDIO_NF_CHROME);
          oEngFuncs.pTriAPI->SpriteTexture(m_pChromeSprite, 0);
          m_pCurrentEntity->curstate.rendercolor.r = 0;
          m_pCurrentEntity->curstate.rendercolor.g = 255
          m_pCurrentEntity->curstate.rendercolor.b = 255;
          m_pCurrentEntity->curstate.renderamt = 9;
          m_pCurrentEntity->curstate.renderfx = kRenderFxGlowShell;
          oEngFuncs.pTriAPI->RenderMode(kRenderNormal);
     }
     if (sys_glBegin)
          return (*sys_glBegin)(mode);
}