set_vec4

Description:

public void set_vec4 (int idx, Vec4 value)

Sets the value of the uniform idx.

Note:

GTK's new Vulkan-focused rendering does not support this feature. Use [GtkGLArea](../gtk4/class.GLArea.html) for OpenGL rendering.

The uniform must be of vec4 type.

Parameters:

this

a `GskShaderArgsBuilder`
idx

index of the uniform
value

value to set the uniform too