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[Alejandro]

I'm trying OpenGL 4.0 Tessellation and I want to apply it to an stablished model, my model is on .md2 format, I'm assuming that a Bezier evaluation will do with the evaluation shader, though I may be very very wrong. Anyways I'm stuck with the following instructions

draw()
{
      glBindBuffer( GL_ARRAY_BUFFER, vboid)
  	{
 		...
 		glPatchParameteri(GL_PATCH_VERTICES, 3);
 		glDrawArrays( GL_PATCHES, 0, size ); // size = how many vertices the model has
 		...
  	}
  	glBindBuffer( GL_ARRAY_BUFFER, 0)
}

The problem is that when it renders the model looks all messy and it certainly doesn't look like when I rendered it using glDrawArrays(GL_TRIANGLES, 0, size). Any suggestions on what parameters to use on glPatchParam... and glDrawArrays?

Thank you