Difference between revisions of "IC Python API:RLPy RIDirectionalLight"

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(Created page with "{{TOC}} {{Parent|IC_Python_API:RL_Python_Modules|Modules}} ==Inheritance== This class inherits public member functions from: *RLPy.RILight *IC...")
 
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{{TOC}}
 
{{TOC}}
 
{{Parent|IC_Python_API:RL_Python_Modules|Modules}}
 
{{Parent|IC_Python_API:RL_Python_Modules|Modules}}
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==Inheritance==
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{{last_modified}}
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This class inherits public member functions from:
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*[[IC_Python_API:RLPy_RILight|RLPy.RILight]]
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*[[IC_Python_API:RLPy_RIObject|RLPy.RIObject]]
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*[[IC_Python_API:RLPy_RIBase|RLPy.RIBase]]
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==Detailed Description==
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This class is the interface to directional light in the scene.
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It provides methods to access various parts of a light such as
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transformation, color, range etc. All methods of this class are
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implemented by the system. <span style="background:#ffcccc">( Experimental Class )</span> <syntaxhighlight lang="Python">
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light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light") # use light name to find object
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light_object.SetCastShadow(True)
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== Description ==
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print(light_object.IsCastShadow())
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#set light shadow strength
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light_object.SetDarkenShadowStrength(RLPy.RTime(0), 50.0)
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print(light_object.GetDarkenShadowStrength())
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prop2 = RLPy.RScene.FindObject(RLPy.EObjectType_Prop, "Box2")
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This class provides operations for Directional Lights, e.g. whether or not to cast shadows, the light's color, light strength, etc. You must first retrieve a directional light from the scene in order to use these operations.
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# set Parent
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result = light_object.SetParent(prop2)
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result = light_object.SetParent(None) #detach from parent
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# set name
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=== Inheritance ===
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light_object.SetName( "new_name" )
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#get bound
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[[IC_Python_API:RLPy_RIBase|RIBase]] > [[IC_Python_API:RLPy_RIObject|RIObject]] > [[IC_Python_API:RLPy_RILight|RILight]] > [[IC_Python_API:RLPy_RIDirectionalLight|RIDirectionalLight]]
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ret_max = RLPy.RVector3()
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ret_center = RLPy.RVector3()
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ret_min = RLPy.RVector3()
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ret = light_object.GetBounds( ret_max, ret_center, ret_min )
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print(ret)
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#get pivot
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== Member Functions ==
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ret_pos = RLPy.RVector3()
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ret_rot = RLPy.RVector3()
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light_object.GetPivot( ret_pos, ret_rot )
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print(ret)
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#clone object
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=== SetCastShadow ( self, bEnable ) ===
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clone_light_object = light_object.Clone()
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print( clone_light_object )
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#is selected
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Turn on or off the directional light's cast shadow.
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RLPy.RScene.SelectObject(light_object)
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print(light_object.IsSelected()) #True
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<syntaxhighlight lang="python" line='line'>
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light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
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if light_object:
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    light_object.SetCastShadow(True)
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    light_object.SetCastShadow(False)
 
</syntaxhighlight>
 
</syntaxhighlight>
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==Operators==
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This class supports the following operators:
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==== Parameters ====
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{| class="wikitable"
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:'''bEnable''' [IN] Enable or disable cast shadows for the light  - bool
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!Member
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!Operation
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==== Returns ====
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!Syntax
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:Success - RLPy.RStatus.Success
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!Description
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:Failure - RLPy.RStatus.Failure
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!Example
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|-
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=== IsCastShadow ( self ) ===
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! scope="row"|__eq__
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|Equality
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Check whether or not the light is casting shadows.
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|a == b
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|If the values of two operands are equal, then the condition becomes true.
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<syntaxhighlight lang="python" line='line'>
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|(a == b) is not true.
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light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
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|}
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==Member Functions==
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if light_object:
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===GetDarkenShadowStrength===
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    light_object.SetCastShadow(True)
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<syntaxhighlight lang="Python">
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    print(light_object.IsCastShadow())
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RLPy.RIDirectionalLight.GetDarkenShadowStrength ( self )
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    light_object.SetCastShadow(False)
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    print(light_object.IsCastShadow())
 
</syntaxhighlight>
 
</syntaxhighlight>
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Get the light darken shadow strength.
 
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<span style="background:#ffcccc">( Experimental API )</span>
 
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====Returns====
 
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<div style="margin-left: 2em;">The value of the "shadow strength" attribute of the light node - float
 
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</div>
 
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-----
 
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===IsCastShadow===
 
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<syntaxhighlight lang="Python">
 
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RLPy.RIDirectionalLight.IsCastShadow ( self )
 
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</syntaxhighlight>
 
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Get the light if cast shadow enable.
 
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<span style="background:#ffcccc">( Experimental API )</span>
 
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====Returns====
 
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<div style="margin-left: 2em;">True if light is cast shadow enable, False if not - bool
 
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</div>
 
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-----
 
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===SetCastShadow===
 
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<syntaxhighlight lang="Python">
 
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RLPy.RIDirectionalLight.SetCastShadow ( self, bEnable )
 
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</syntaxhighlight>
 
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Set the light's cast shadow is enable.
 
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<span style="background:#ffcccc">( Experimental API )</span>
 
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====Parameters====
 
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<div style="margin-left: 2em;">
 
  
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'''bEnable''' [in] If light's cast shadow is enable - bool
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==== Returns ====
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</div>
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:'''True''' if the light is casting shadows, else '''False''' - bool
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====Return Values====
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<div style="margin-left: 2em;">
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'''RLPy.RStatus.Success''' Success
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=== SetDarkenShadowStrength ( self, kTime, fStrength ) ===
  
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'''RLPy.RStatus.Failure''' Fail
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Set the directional light's shadow strength at a given point in time (0 to 100).
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</div>
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-----
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<syntaxhighlight lang="python" line='line'>
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===SetDarkenShadowStrength===
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light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
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<syntaxhighlight lang="Python">
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RLPy.RIDirectionalLight.SetDarkenShadowStrength ( self, kTime, fStrength )
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if light_object:
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  result = light_object.SetDarkenShadowStrength(RLPy.RGlobal.GetTime(), 50)
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  print(result)
 
</syntaxhighlight>
 
</syntaxhighlight>
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Set the light's shadow strength.
 
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<span style="background:#ffcccc">( Experimental API )</span>
 
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====Parameters====
 
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<div style="margin-left: 2em;">
 
  
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'''fStrength''' [in] The Light shadow strength value - float
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==== Parameters ====
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</div>
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:'''fStrength''' [IN] The Light shadow strength value - float
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====Return Values====
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<div style="margin-left: 2em;">
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'''RLPy.RStatus.Success''' Success
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==== Returns ====
 +
:Success - RLPy.RStatus.Success
 +
:Failure - RLPy.RStatus.Failure
  
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'''RLPy.RStatus.Failure''' Fail
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=== GetDarkenShadowStrength ( self ) ===
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</div>
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 +
Get the directional light's shadow strength at a given point in time (0 to 100).
 +
 
 +
==== Returns ====
 +
:The light's shadow strength value - float
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<syntaxhighlight lang="python" line='line'>
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light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
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if light_object:
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  result = light_object.SetDarkenShadowStrength(RLPy.RGlobal.GetTime(), 50)
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  print(light_object.GetDarkenShadowStrength())
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</syntaxhighlight>

Latest revision as of 01:02, 15 April 2020

Main article: Modules.
Last modified: 04/15/2020

Description

This class provides operations for Directional Lights, e.g. whether or not to cast shadows, the light's color, light strength, etc. You must first retrieve a directional light from the scene in order to use these operations.

Inheritance

RIBase > RIObject > RILight > RIDirectionalLight

Member Functions

SetCastShadow ( self, bEnable )

Turn on or off the directional light's cast shadow. 

1 light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
2 
3 if light_object:
4     light_object.SetCastShadow(True)
5     light_object.SetCastShadow(False)

Parameters

bEnable [IN] Enable or disable cast shadows for the light - bool

Returns

Success - RLPy.RStatus.Success
Failure - RLPy.RStatus.Failure

IsCastShadow ( self )

Check whether or not the light is casting shadows. 

1 light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
2 
3 if light_object:
4     light_object.SetCastShadow(True)
5     print(light_object.IsCastShadow())
6 
7     light_object.SetCastShadow(False)
8     print(light_object.IsCastShadow())

Returns

True if the light is casting shadows, else False - bool

SetDarkenShadowStrength ( self, kTime, fStrength )

Set the directional light's shadow strength at a given point in time (0 to 100). 

1 light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
2 
3 if light_object:
4   result = light_object.SetDarkenShadowStrength(RLPy.RGlobal.GetTime(), 50)
5   print(result)

Parameters

fStrength [IN] The Light shadow strength value - float

Returns

Success - RLPy.RStatus.Success
Failure - RLPy.RStatus.Failure

GetDarkenShadowStrength ( self )

Get the directional light's shadow strength at a given point in time (0 to 100).

Returns

The light's shadow strength value - float
1 light_object = RLPy.RScene.FindObject(RLPy.EObjectType_Light, "Dir. Light")
2 
3 if light_object:
4   result = light_object.SetDarkenShadowStrength(RLPy.RGlobal.GetTime(), 50)
5   print(light_object.GetDarkenShadowStrength())
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