godotengine/godot-docs
1
0
Fork 0
mirror of https://github.com/godotengine/godot-docs.git synced 2026-01-05 22:09:56 +03:00
Code Issues Packages Projects Releases Wiki Activity

Document Forward+ limitations with decal and reflection probe rendering

Browse Source 
This is already present in the 3D lights and shadows documentation.
This commit is contained in:
Hugo Locurcio
2023-09-27 03:04:01 +02:00
committed by Max Hilbrunner
parent ae2bdfd44e
commit 08806845c5
2 changed files with 30 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
tutorials/3d/global_illumination/reflection_probes.rst
View File

@@ -3,6 +3,11 @@
Reflection probes
=================
.. note::
Reflection probes are only supported in the Clustered Forward and Forward
Mobile rendering backends, not the Compatibility backend.
As stated in the :ref:`doc_standard_material_3d`, objects can show reflected and/or
diffuse light. Reflection probes are used as a source of reflected *and* ambient
light for objects inside their area of influence. They can be used to provide
@@ -166,3 +171,19 @@ To make several ReflectionProbes blend with each other, you need to have part of
each ReflectionProbe overlap each other's area. The extents should only overlap
as little possible with other reflection probes to improve rendering performance
(typically a few units in 3D space).
Limitations
-----------
When using the Forward+ renderer, Godot uses a *clustering* approach for
reflection probe rendering. As many reflection probes as desired can be added (as long as
performance allows). However, there's still a default limit of 512 *clustered
elements* that can be present in the current camera view. A clustered element is
an omni light, a spot light, a :ref:`decal <doc_using_decals>` or a
:ref:`reflection probe <doc_reflection_probes>`. This limit can be increased by
adjusting the **Rendering > Limits > Cluster Builder > Max Clustered Elements**
advanced project setting.
When using the Forward Mobile backend, only 8 reflection probes can be applied on each
individual Mesh *resource*. If there are more reflection probes affecting a single mesh,
not all of them will be rendered on the mesh.

9
tutorials/3d/using_decals.rst
View File

@@ -229,6 +229,15 @@ decals cannot use custom shaders. However, custom shaders on the projected
surfaces are able to read the information that is overridden by decals on top of
them, such as roughness and metallic.
When using the Forward+ renderer, Godot uses a *clustering* approach for
decal rendering. As many decals as desired can be added (as long as
performance allows). However, there's still a default limit of 512 *clustered
elements* that can be present in the current camera view. A clustered element is
an omni light, a spot light, a :ref:`decal <doc_using_decals>` or a
:ref:`reflection probe <doc_reflection_probes>`. This limit can be increased by
adjusting the **Rendering > Limits > Cluster Builder > Max Clustered Elements**
advanced project setting.
When using the Forward Mobile backend, only 8 decals can be applied on each
individual Mesh *resource*. If there are more decals affecting a single mesh,
not all of them will be rendered on the mesh.