Equivalent to Unity's Camera.worldToCameraMatrix | Godot Café | Page 1

stuck frost Oct 28, 2023, 9:00 PM

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Hi all,
Is there a Godot equivalent to Unity's Camera.worldToCameraMatrix? (https://docs.unity3d.com/ScriptReference/Camera-worldToCameraMatrix.html)
This matrix is often referred to as "view matrix" in graphics literature.

I can access the projection matrix of the camera, and I have edited the C++ engine to be able to modify it.
Now, I can't find references to the view matrix... Is it included in the projection matrix?

(Context: I'm trying to do off-axis perspective projection in Godot: https://en.wikibooks.org/wiki/Cg_Programming/Unity/Projection_for_Virtual_Reality, https://www.youtube.com/watch?v=Jd3-eiid-Uw)

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cosmic nest Oct 30, 2023, 6:10 PM

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https://docs.godotengine.org/en/stable/tutorials/shaders/shader_reference/spatial_shader.html

Godot Engine documentation

Spatial shaders

Spatial shaders are used for shading 3D objects. They are the most complex type of shader Godot offers. Spatial shaders are highly configurable with different render modes and different rendering o...

stuck frost Nov 1, 2023, 10:31 AM

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I want to get/set the value from GD scripts.
I had to edit the C++ engine to give me access to the projection matrix, but I can't find any reference of the view matrix in GDScript nor C++ side.
It seems that placing the camera position and rotation in the world has an effect on this matrix.

#Equivalent to Unity's Camera.worldToCameraMatrix