open_toontown_panda3d/panda/src/pgraph/renderModeAttrib.I

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// Filename: renderModeAttrib.I
// Created by: drose (14Mar02)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license. You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://etc.cmu.edu/panda3d/docs/license/ .
//
// To contact the maintainers of this program write to
// panda3d-general@lists.sourceforge.net .
//
////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////
// Function: RenderModeAttrib::Constructor
// Access: Private
// Description: Use RenderModeAttrib::make() to construct a new
// RenderModeAttrib object.
////////////////////////////////////////////////////////////////////
INLINE RenderModeAttrib::
RenderModeAttrib(RenderModeAttrib::Mode mode, float thickness,
bool perspective) :
_mode(mode),
_thickness(thickness),
_perspective(perspective)
{
}
////////////////////////////////////////////////////////////////////
// Function: RenderModeAttrib::get_mode
// Access: Published
// Description: Returns the render mode.
////////////////////////////////////////////////////////////////////
INLINE RenderModeAttrib::Mode RenderModeAttrib::
get_mode() const {
return _mode;
}
////////////////////////////////////////////////////////////////////
// Function: RenderModeAttrib::get_thickness
// Access: Published
// Description: Returns the line width or point thickness. This is
// only relevant when rendering points or lines, such as
// when the mode is M_wireframe or M_point (or when
// rendering actual points or lines primitives in
// M_polygon mode).
////////////////////////////////////////////////////////////////////
INLINE float RenderModeAttrib::
get_thickness() const {
return _thickness;
}
////////////////////////////////////////////////////////////////////
// Function: RenderModeAttrib::get_perspective
// Access: Published
// Description: Returns the perspective flag. When this is true, the
// point thickness represented by get_thickness() is
// actually a width in 3-d units, and the points should
// scale according to perspective. When it is false,
// the default, the point thickness is actually a width
// in pixels, and points are a uniform size regardless
// of distance from the camera.
////////////////////////////////////////////////////////////////////
INLINE bool RenderModeAttrib::
get_perspective() const {
return _perspective;
}
////////////////////////////////////////////////////////////////////
// Function: RenderModeAttrib::get_geom_rendering
// Access: Published
// Description: Returns the union of the Geom::GeomRendering bits
// that will be required once this RenderModeAttrib is
// applied to a geom which includes the indicated
// geom_rendering bits.
////////////////////////////////////////////////////////////////////
INLINE int RenderModeAttrib::
get_geom_rendering(int geom_rendering) const {
if (_mode == M_point) {
geom_rendering |= qpGeom::GR_point;
}
if ((geom_rendering & qpGeom::GR_point) != 0) {
if (_perspective) {
geom_rendering |= (qpGeom::GR_point_perspective | qpGeom::GR_point_uniform_size);
} else if (_thickness != 1.0f) {
geom_rendering |= qpGeom::GR_point_uniform_size;
}
}
return geom_rendering;
}