ShaderArgsBuilder#

class ShaderArgsBuilder(**kwargs)#

An object to build the uniforms data for a GskGLShader.

Constructors#

class ShaderArgsBuilder
classmethod new(shader: GLShader, initial_values: Bytes | None = None) → ShaderArgsBuilder#

Allocates a builder that can be used to construct a new uniform data chunk.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.

Parameters:

  • shader – a GskGLShader

  • initial_values – optional GBytes with initial values

Methods#

class ShaderArgsBuilder
set_bool(idx: int, value: bool) → None#

Sets the value of the uniform idx.

The uniform must be of bool type.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.

Parameters:

  • idx – index of the uniform

  • value – value to set the uniform to

set_float(idx: int, value: float) → None#

Sets the value of the uniform idx.

The uniform must be of float type.

Parameters:

  • idx – index of the uniform

  • value – value to set the uniform to

set_int(idx: int, value: int) → None#

Sets the value of the uniform idx.

The uniform must be of int type.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.

Parameters:

  • idx – index of the uniform

  • value – value to set the uniform to

set_uint(idx: int, value: int) → None#

Sets the value of the uniform idx.

The uniform must be of uint type.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.

Parameters:

  • idx – index of the uniform

  • value – value to set the uniform to

set_vec2(idx: int, value: Vec2) → None#

Sets the value of the uniform idx.

The uniform must be of vec2 type.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.

Parameters:

  • idx – index of the uniform

  • value – value to set the uniform too

set_vec3(idx: int, value: Vec3) → None#

Sets the value of the uniform idx.

The uniform must be of vec3 type.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.

Parameters:

  • idx – index of the uniform

  • value – value to set the uniform too

set_vec4(idx: int, value: Vec4) → None#

Sets the value of the uniform idx.

The uniform must be of vec4 type.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.

Parameters:

  • idx – index of the uniform

  • value – value to set the uniform too

to_args() → Bytes#

Creates a new GBytes args from the current state of the given builder.

Any uniforms of the shader that have not been explicitly set on the builder are zero-initialized.

The given GskShaderArgsBuilder is reset once this function returns; you cannot call this function multiple times on the same builder instance.

This function is intended primarily for bindings. C code should use free_to_args.

Deprecated since version 4.16:

GTK’s new Vulkan-focused rendering

does not support this feature. Use GtkGLArea for OpenGL rendering.