145 lines
3 KiB
Text
145 lines
3 KiB
Text
/**
|
|
* PANDA 3D SOFTWARE
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
*
|
|
* All use of this software is subject to the terms of the revised BSD
|
|
* license. You should have received a copy of this license along
|
|
* with this source code in a file named "LICENSE."
|
|
*
|
|
* @file light.I
|
|
* @author drose
|
|
* @date 2002-03-26
|
|
*/
|
|
|
|
/**
|
|
*
|
|
*/
|
|
INLINE Light::CData::
|
|
CData() :
|
|
_color(1.0f, 1.0f, 1.0f, 1.0f),
|
|
_viz_geom_stale(true)
|
|
{
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
INLINE Light::CData::
|
|
CData(const Light::CData ©) :
|
|
_color(copy._color),
|
|
_viz_geom(copy._viz_geom),
|
|
_viz_geom_stale(copy._viz_geom_stale)
|
|
{
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
INLINE Light::
|
|
Light() :
|
|
_priority(0),
|
|
_has_color_temperature(true),
|
|
_color_temperature(6500)
|
|
{
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
INLINE Light::
|
|
Light(const Light ©) :
|
|
_priority(copy._priority),
|
|
_has_color_temperature(copy._has_color_temperature),
|
|
_color_temperature(copy._color_temperature),
|
|
_cycler(copy._cycler)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* Returns the basic color of the light.
|
|
*/
|
|
INLINE const LColor &Light::
|
|
get_color() const {
|
|
CDReader cdata(_cycler);
|
|
return cdata->_color;
|
|
}
|
|
|
|
/**
|
|
* Sets the basic color of the light.
|
|
*/
|
|
INLINE void Light::
|
|
set_color(const LColor &color) {
|
|
CDWriter cdata(_cycler);
|
|
cdata->_color = color;
|
|
_has_color_temperature = false;
|
|
mark_viz_stale();
|
|
}
|
|
|
|
/**
|
|
* Returns true if the color was specified as a temperature in kelvins, and
|
|
* get_color_temperature is defined.
|
|
*
|
|
* @since 1.10.0
|
|
*/
|
|
INLINE bool Light::
|
|
has_color_temperature() const {
|
|
return _has_color_temperature;
|
|
}
|
|
|
|
/**
|
|
* Returns the basic color temperature of the light, assuming
|
|
* has_color_temperature() returns true.
|
|
*
|
|
* @since 1.10.0
|
|
*/
|
|
INLINE PN_stdfloat Light::
|
|
get_color_temperature() const {
|
|
nassertr(_has_color_temperature, _color_temperature);
|
|
return _color_temperature;
|
|
}
|
|
|
|
/**
|
|
* Changes the relative importance of this light relative to the other lights
|
|
* that are applied simultaneously.
|
|
*
|
|
* The priority number is used to decide which of the requested lights are to
|
|
* be selected for rendering when more lights are requested than the hardware
|
|
* will support. The highest-priority n lights are selected for rendering.
|
|
*
|
|
* This is similar to TextureStage::set_priority().
|
|
*/
|
|
INLINE void Light::
|
|
set_priority(int priority) {
|
|
_priority = priority;
|
|
|
|
// Update the global flag to indicate that all LightAttribs in the world
|
|
// must now re-sort their lists.
|
|
_sort_seq++;
|
|
}
|
|
|
|
/**
|
|
* Returns the priority associated with this light. See set_priority().
|
|
*/
|
|
INLINE int Light::
|
|
get_priority() const {
|
|
return _priority;
|
|
}
|
|
|
|
/**
|
|
* Returns a global sequence number that is incremented any time any Light in
|
|
* the world changes sort or priority. This is used by LightAttrib to
|
|
* determine when it is necessary to re-sort its internal array of stages.
|
|
*/
|
|
INLINE UpdateSeq Light::
|
|
get_sort_seq() {
|
|
return _sort_seq;
|
|
}
|
|
|
|
/**
|
|
* Indicates that the internal visualization object will need to be updated.
|
|
*/
|
|
INLINE void Light::
|
|
mark_viz_stale() {
|
|
CDWriter cdata(_cycler);
|
|
cdata->_viz_geom_stale = true;
|
|
}
|