godotengine/godot-docs
1
0
Fork 0
mirror of https://github.com/godotengine/godot-docs.git synced 2025-12-31 17:49:03 +03:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #11510 from Aurora-Bee/advanced_postprocessing_optimization_code_fix

Browse Source 
Fixed code example in Shaders > Advanced post-processing > An optimization
This commit is contained in:
Max Hilbrunner
2025-12-04 15:51:18 +01:00
committed by GitHub
parent 0fce3e79c7 8db87be8b9
commit 88ff50bb18
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
tutorials/shaders/advanced_postprocessing.rst
View File

@@ -122,7 +122,7 @@ the depth value for ``z``.
use Vulkan NDCs with a Z-range of ``[0.0, 1.0]``. In contrast, the Compatibility
renderer uses OpenGL NDCs with a Z-range of ``[-1.0, 1.0]``. For the Compatibility
renderer, replace the NDC calculation with this instead:
.. code-block:: glsl
vec3 ndc = vec3(SCREEN_UV, depth) * 2.0 - 1.0;
@@ -154,7 +154,7 @@ the distance to the point.
Because the camera is facing the negative ``z`` direction, the position will have a negative ``z`` value.
In order to get a usable depth value, we have to negate ``view.z``.
The world position can be constructed from the depth buffer using the following code, using the
The world position can be constructed from the depth buffer using the following code, using the
``INV_VIEW_MATRIX`` to transform the position from view space into world space.
.. code-block:: glsl
@@ -168,8 +168,8 @@ The world position can be constructed from the depth buffer using the following
Example shader
--------------
Once we add a line to output to ``ALBEDO``, we have a complete shader that looks something like this.
This shader lets you visualize the linear depth or world space coordinates, depending on which
Once we add a line to output to ``ALBEDO``, we have a complete shader that looks something like this.
This shader lets you visualize the linear depth or world space coordinates, depending on which
line is commented out.
.. code-block:: glsl
@@ -223,8 +223,8 @@ Now, attach a script to the MeshInstance3D and use the following code:
# Create a single triangle out of vertices:
var verts = PackedVector3Array()
verts.append(Vector3(-1.0, -1.0, 0.0))
verts.append(Vector3(-1.0, 3.0, 0.0))
verts.append(Vector3(3.0, -1.0, 0.0))
verts.append(Vector3(-1.0, 3.0, 0.0))
# Create an array of arrays.
# This could contain normals, colors, UVs, etc.