Module gwy :: Class GLMaterial

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Class GLMaterial

OpenGL material representation

GLMaterial represents an OpenGL material. Its properties directly map to corresponding OpenGL material characteristics, all are in the range [0,1].

Gradient objects can be obtained from gwy_gl_materials_get_gl_material(). New GL materials can be created with Inventory.new_item() on the Inventory returned by gwy_gl_materials().

Instance Methods

get_ambient()
Gets the ambient reflectance of a GL material.

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set_ambient(ambient)
Sets the ambient reflectance of a GL material.

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get_diffuse()
Gets the diffuse reflectance of a GL material.

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set_diffuse(diffuse)
Sets the diffuse reflectance of a GL material.

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get_specular()
Gets the specular reflectance of a GL material.

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set_specular(specular)
Sets the specular reflectance of a GL material.

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get_emission()
Gets the emission component of a GL material.

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set_emission(emission)
Sets the emission component of a GL material.

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get_shininess()
Gets the shininess value of a GL material.

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set_shininess(shininess)
Sets the shininess value of a GL material.

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sample_to_pixbuf(pixbuf)
Samples GL material to a provided pixbuf.

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reset()
Resets a GL material to default values.

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Method Details

get_ambient()

Gets the ambient reflectance of a GL material.

Returns:: Ambient reflectance (owned by GL material, must not be modified nor freed). (const-RGBA*)

set_ambient(ambient)

Sets the ambient reflectance of a GL material.

Parameters:

ambient - Ambient reflectance. (const-RGBA*)

get_diffuse()

Gets the diffuse reflectance of a GL material.

Returns:: Diffuse reflectance (owned by GL material, must not be modified nor freed). (const-RGBA*)

set_diffuse(diffuse)

Sets the diffuse reflectance of a GL material.

Parameters:

diffuse - Diffuse reflectance. (const-RGBA*)

get_specular()

Gets the specular reflectance of a GL material.

Returns:: Specular reflectance (owned by GL material, must not be modified nor freed). (const-RGBA*)

set_specular(specular)

Sets the specular reflectance of a GL material.

Parameters:

specular - Specular reflectance. (const-RGBA*)

get_emission()

Gets the emission component of a GL material.

Returns:: Emission component (owned by GL material, must not be modified nor freed). (const-RGBA*)

set_emission(emission)

Sets the emission component of a GL material.

Parameters:

emission - Emission component. (const-RGBA*)

get_shininess()

Gets the shininess value of a GL material.

Returns:: The shininess value (in range 0..1, not 0..128). (float)

set_shininess(shininess)

Sets the shininess value of a GL material.

Parameters:

shininess - Shinniness value (in range 0..1, not 0..128). (float)

sample_to_pixbuf(pixbuf)

Samples GL material to a provided pixbuf.

Parameters:

pixbuf - A pixbuf to sample gl_material to (in horizontal direction). (gdk.Pixbuf)