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.. _bpy.ops.scene.view_layer:
.. _bpy.types.ViewLayer:
.. _render-layers:
************
Introduction
************
Renders can be separated into layers, to composite them back together afterwards.
Some example usages are applying compositing effects to characters separately,
blurring the background and foreground layers separately for depth of field,
or rendering different lighting variations of the same scene.
Using View Layers can also save you from having to re-render your entire image after each change,
allowing you to instead re-render only the layer(s) that you have altered.
View Layers
===========
.. figure:: /images/render_layers_introduction_list.png
View Layers.
In the top of the screen there is a list of all the View Layers in the active scene.
.. _bpy.types.ViewLayer.name:
Name
The name of the active view layer, click to edit the name.
.. _bpy.ops.scene.view_layer_add:
Add View Layer
Will add a new view layer to the active scene.
New
Adds a new view layer.
Copy Settings
Adds a new view layer with all the settings of current view layer.
Blank
Adds a new view layer with all collections disabled.
.. _bpy.ops.scene.view_layer_remove:
Remove View Layer
Will remove the selected view layer from the active scene.
.. note::
A scene must have at least one view layer.
Usage
=====
Each :doc:`Scene </scene_layout/scene/introduction>` has an associated set of
:doc:`Collections </scene_layout/collections/collections>`.
The visibility settings of each collection can be changed per View Layer to separate the
rendering of different objects and lights into layers.
Collections
===========
Per collection you can adjust the way how the render engine needs to render the objects inside.
Based on the render engine different options can be set.
.. figure:: /images/render_layers_introduction_viewlayer-collection.png
Collection/View layer settings.
Disable from View Layer
Remove this collection from the active view layer. Objects that are only in
this collection will not be rendered for the active view layer.
This is useful to sometimes leave out some object influence for a particular view layer.
Enable in View Layer
Add this collection to the active view layer. Objects inside the collection
will be rendered with the active view layer.
.. _bpy.ops.outliner.collection_holdout_set:
Set Holdout
Objects inside this collection will generate a holdout/mask in the active view layer.
.. _bpy.ops.outliner.collection_holdout_clear:
Clear Holdout
Clear the Set Holdout flag.
.. _bpy.ops.outliner.collection_indirect_only_set:
Set Indirect Only :guilabel:`Cycles Only`
Objects inside this collection will only contribute to the final image
indirectly through shadows and reflections.
.. _bpy.ops.outliner.collection_indirect_only_clear:
Clear Indirect Only :guilabel:`Cycles Only`
Clear the *Indirect Only* flag. Objects inside this collection will contribute normally to the final image.
Cycles
======
.. reference::
:Panel: :menuselection:`View Layers --> Layer`
This section covers only the Render Layer settings appropriate for the Cycles renderer.
For the engine-independent settings, see :ref:`this section <render-layers>`.
Filter
------
.. _bpy.types.ViewLayer.use_sky:
Include
Environment
Disables rendering the *Environment* render pass in the final render.
.. _bpy.types.ViewLayer.use_solid:
Surfaces
Disables rendering object materials in the final render.
.. _bpy.types.ViewLayer.use_strand:
Curves
Disables rendering curve strands in the final render.
.. _bpy.types.ViewLayer.use_volumes:
Volume
Disables rendering :doc:`Volumes </modeling/volumes/index>` in the final render.
.. _bpy.types.ViewLayer.use_motion_blur:
Use
Motion Blur
Render motion blur for this Layer,
if enabled in the :ref:`Render Settings <bpy.types.RenderSettings.use_motion_blur>`.
Override
--------
.. _bpy.types.ViewLayer.material_override:
Material Override
Overrides all materials in the render layer.
.. _bpy.types.ViewLayer.world_override:
World Override
Overrides world background in the render layer.
.. _bpy.types.ViewLayer.samples:
Samples
View layer samples to override the scene samples.
Controlled by the :ref:`layer samples <bpy.types.CyclesRenderSettings.use_layer_samples>` in the Sampling panel.
|
