LightProj Class
Warning
The scope of applications for UnigineScript is limited to implementing materials-related logic (material expressions, scriptable materials, brush materials). Do not use UnigineScript as a language for application logic, please consider C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScipt (beyond its scope of applications) is not guaranteed, as the current level of support assumes only fixing critical issues.
| Inherits: | Light |
This class is used to create projected light sources that emit light from a single point and cast a cone of light. It is possible to modulate the light from these light sources with a texture.
See Also#
- A set of UnigineScript API samples located in the <UnigineSDK>/data/samples/lights/ folder:
- proj_00
- proj_03
LightProj Class
Members
static LightProj ( vec4 color, float attenuation_distance, float fov, string name = 0 ) #
Constructor. Creates a new projected light source with texture modulation based on given parameters.Arguments
- vec4 color - Color of the new light source.
- float attenuation_distance - Distance from the light source shape, at which the light source doesn't illuminate anything.
- float fov - Field of view of the new light source.
- string name - Path to a texture of the new light source.
void setAttenuationDistance ( float distance ) #
Updates the distance from the light source shape, at which the light source doesn't illuminate anything.Arguments
- float distance - Distance from the light source shape, at which the light source doesn't illuminate anything.
float getAttenuationDistance ( ) #
Returns the distance from the light source shape, at which the light source doesn't illuminate anything.Return value
Distance from the light source shape, at which the light source doesn't illuminate anything.void setFov ( float fov ) #
Updates the current field of view of the projected light source. Remember that large fields of view may lead to shadow distortions.Arguments
- float fov - New field of view in degrees. This value will be saturated in range [1; 180].
float getFov ( ) #
Returns the current field of view of the projected light source.Return value
Field of view in degrees.void setTexture ( Texture texture ) #
Sets the light image texture smart pointer.Arguments
- Texture texture - Texture smart pointer.
Texture getTexture ( ) #
Gets a light image texture smart pointer.Return value
Returns image texture smart pointer.int setTextureImage ( Image image, int dynamic = 0 ) #
Sets a given Image instance as the light image texture. If you need to set a texture of all the lights in the scene, set dynamic flag to 1.Arguments
- Image image - Image.
- int dynamic - Dynamic texture flag.
- If set to 0, changing a texture of the light instance will also affect all the lights in the scene.
- If set to 1, an image will be successfully set only for the current light instance.
Return value
Returns 1 if the texture is set successfully; otherwise, 0.int getTextureImage ( Image image ) #
Reads the light image texture into an Image instance.Arguments
- Image image - Image, into which the texture is read.
Return value
Returns 1 if the texture is read successfully; otherwise, 0.void setTexturePath ( string path ) #
Updates the texture used with this light source.Arguments
- string path - Name (path) of the new texture.
string getTexturePath ( ) #
Returns the name (path) of the texture used with this light source.Return value
Name of the texture.void setPenumbra ( float penumbra ) #
Arguments
- float penumbra
float getPenumbra ( ) #
mat4 getProjection ( ) #
Returns the projection matrix used with this light source.Return value
Projection matrix.void setShapeHeight ( float height ) #
Updates the height of the rectangular light source.Arguments
- float height - Height of the light source shape.
float getShapeHeight ( ) #
Returns the height of the rectangular light source.Return value
Height of the light source shape.void setShapeLength ( float length ) #
Updates the length of the capsule-shaped or rectangular light source.Arguments
- float length - Length of the light source shape.
float getShapeLength ( ) #
Returns a length of the capsule-shaped or rectangular light source.Return value
Length of the light source shape.void setShapeRadius ( float radius ) #
Updates the radius of the spherical, capsule-shaped or rectangular light source.Notice
In case of the rectangular shape, the corner radius is set.
Arguments
- float radius - Radius of the light source shape.
float getShapeRadius ( ) #
Returns a radius of the spherical, capsule-shaped or rectangular light source.Notice
In case of the rectangular shape, the corner radius will be returned.
Return value
Radius of the light source shape.void setShapeType ( int type ) #
Updates the shape of the light source.Notice
A light source of the rectangular shape produces the light and the speck in a form of a rounded rectangle.
Arguments
- int type - Shape of the light source (one of the LIGHT_SHAPE_*variables).
int getShapeType ( ) #
Returns the shape of the light source.Notice
A light source of the rectangular shape produces the light and the speck in a form of a rounded rectangle.
Return value
Shape of the light source (one of the LIGHT_SHAPE_* variables).void setZNear ( float znear ) #
Updates the distance to the near clipping plane of the projected light source.Arguments
- float znear - New distance to the near clipping plane in units. If a negative value is provided, 0 will be used instead. The default value is 0.1.
float getZNear ( ) #
Returns the distance to the near clipping plane of the projected light source. The default value is 0.1.Return value
Distance to the near clipping plane in units.static int type ( ) #
Returns the type of the node.Return value
Light type identifier.Last update:
2020-07-31
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