================================
Materials/Textures -- procedural
================================

.. index:: textur (procedural)

.. |a| image:: /images/all/blender-basics/h_material/procedure-100.png


Objectives
==========
   
.. tabularcolumns:: | c | l |
   :border: none

+-------+-------------------------------------------------------------------------+
|  |a|  | Procedural textures are explained in this station. It is only the       |
|       | starting point to this complex topic.                                   |
+-------+-------------------------------------------------------------------------+

Instructions
============
:Tasks:

1. Run the script and check the functionality of the functions.
2. Change the parameters of a texture.
3. Set material and texture to a new object.  


All types in one image -- the mapping types will be shown in a separate station.
On the picture you can see the names of the textures and how the rendered objects looks like.

.. image:: /images/all/blender-basics/h_material/procedurale-textures.jpg


Code used to render the image
=============================

.. literalinclude:: files/material_procedural.py
   :language: python


:hint:  Run the script, set the camera on the right position 
        and start the menu sequence: Render » Render Image. 

|
 Every texture has more or less parameters. In the property panel all 
  parameters are changeable. The names of parameters are printed with 
  the *dir* command.
::

  print(dir(textur))

Output example for the texture »WOOD«:
::

  ['__doc__', '__module__', '__slots__', 'animation_data', 
   'animation_data_clear', 'animation_data_create', 'bl_rna', 
   'color_ramp', 'contrast', 'copy', 'evaluate', 'factor_blue', 
   'factor_green', 'factor_red', 'intensity', 'is_library_indirect', 
   'is_updated', 'is_updated_data', 'library', 'nabla', 'name', 
   'node_tree', 'noise_basis', 'noise_basis_2', 'noise_scale', 
   'noise_type', 'rna_type', 'saturation', 'tag', 'turbulence', 
   'type', 'update_tag', 'use_color_ramp', 'use_fake_user', 
   'use_nodes', 'use_preview_alpha', 'user_clear', 'users', 
   'wood_type']