|
|
@@ -16,7 +16,7 @@ usability and flexibility. Some practical examples of this are:
|
|
|
makes rendering less efficient, but at the same time less objects are
|
|
|
rendered, so efficiency overall improves.
|
|
|
- Configuring the properties of every material for every object that
|
|
|
- needs to be renderer is also slow. To solve this, objects are sorted
|
|
|
+ needs to be rendered is also slow. To solve this, objects are sorted
|
|
|
by material to reduce the costs, but at the same time sorting has a
|
|
|
cost.
|
|
|
- In 3D physics a similar situation happens. The best algorithms to
|
|
|
@@ -47,7 +47,7 @@ so this section will have a list of tips.
|
|
|
Reuse shaders and materials
|
|
|
---------------------------
|
|
|
|
|
|
-Godot renderer is a little different to what is out there. It's designed
|
|
|
+The Godot renderer is a little different to what is out there. It's designed
|
|
|
to minimize GPU state changes as much as possible.
|
|
|
:ref:`class_SpatialMaterial`
|
|
|
does a good job at reusing materials that need similar shaders but, if
|
|
|
@@ -70,11 +70,11 @@ fast.
|
|
|
Pixels cost vs vertex cost
|
|
|
--------------------------
|
|
|
|
|
|
-It is a common thought that the lower the polygons in a model, the
|
|
|
+It is a common thought that the lower the number of polygons in a model, the
|
|
|
faster it will be rendered. This is *really* relative and depends on
|
|
|
many factors.
|
|
|
|
|
|
-On a modern PC and consoles, vertex cost is low. Very low. GPUs
|
|
|
+On a modern PC and console, vertex cost is low. Very low. GPUs
|
|
|
originally only rendered triangles, so all the vertices:
|
|
|
|
|
|
1. Had to be transformed by the CPU (including clipping).
|
|
|
@@ -162,7 +162,7 @@ Level of detail (LOD)
|
|
|
---------------------
|
|
|
|
|
|
As also mentioned before, using objects with less vertices can improve
|
|
|
-performance in some cases. Godot has a very simple system to use level
|
|
|
+performance in some cases. Godot has a very simple system to change level
|
|
|
of detail,
|
|
|
:ref:`GeometryInstance <class_GeometryInstance>`
|
|
|
based objects have a visibility range that can be defined. Having
|
|
|
@@ -173,7 +173,7 @@ Use instancing (MultiMesh)
|
|
|
|
|
|
If several identical objects have to be drawn in the same place or
|
|
|
nearby, try using :ref:`MultiMesh <class_MultiMesh>`
|
|
|
-instead. MultiMesh allows drawing of dozens of thousands of objects at
|
|
|
+instead. MultiMesh allows the drawing of dozens of thousands of objects at
|
|
|
very little performance cost, making it ideal for flocks, grass,
|
|
|
particles, etc.
|
|
|
|
MohamedAlFahim