static void TAG() Normal3f_single	(	GLfloat	x,
		GLfloat	y,
		GLfloat	z
	)		`[static]`

Definition at line 34 of file t_dd_imm_napi.h.

Referenced by init_norm().

{
   GET_CURRENT_VERTEX;
   const struct gl_light *light = ctx->Light.EnabledList.prev;
   GLfloat n_dot_h, n_dot_VP, spec, sum[3];
   GLfloat *normal = ctx->Current.Normal;
   GLfloat scale = 1.0;

   ASSIGN_3V( normal, x, y, z );
   COPY_3V( sum, BASE_COLOR );

   if ( IND & NORM_RESCALE ) {
      scale = ctx->_ModelViewInvScale;
   } else if ( IND & NORM_NORMALIZE ) {
      scale = LEN_3FV( normal );
      if ( scale != 0.0 ) scale = 1.0 / scale;
   }

   n_dot_VP = DOT3( normal, light->_VP_inf_norm ) * scale;
   if ( n_dot_VP > 0.0F ) {
      ACC_SCALE_SCALAR_3V( sum, n_dot_VP, light->_MatDiffuse[0] );
      n_dot_h = DOT3( normal, light->_h_inf_norm ) * scale;
      if ( n_dot_h > 0.0F ) {
     GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec );
     ACC_SCALE_SCALAR_3V( sum, spec, light->_MatSpecular[0] );
      }
   }

#ifdef LIT_COLOR_IS_FLOAT
   LIT_COLOR ( RCOMP ) = CLAMP(sum[0], 0.0f, 0.1f);
   LIT_COLOR ( GCOMP ) = CLAMP(sum[1], 0.0f, 0.1f);
   LIT_COLOR ( BCOMP ) = CLAMP(sum[2], 0.0f, 0.1f);
#else
   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( RCOMP ), sum[0] );
   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( GCOMP ), sum[1] );
   UNCLAMPED_FLOAT_TO_UBYTE( LIT_COLOR( BCOMP ), sum[2] );
#endif
   LIT_COLOR( ACOMP ) = LIT_ALPHA;
}

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