keijiro / depthinverseprojection

An example showing how to inverse-project depth samples into the view/world space in Unity.

DepthInverseProjection

This is an example that shows how to inverse-project depth samples (from the camera depth texture) into the view/world space in Unity.

System Requirements

• Unity 2018.2 or later

License

Public domain

depthinverseprojection's Issues

Missing namespaces

Hi,
I wanted to test your project but I cannot run it since there seem to be namespaces missing (screenshot). The readme says I only need Unity 2018.2 or higher.

Is there a component install or a library that I am missing?

Found using
Unity 2018.2.0f2 (stock install)
Buildsettings: PC, Mac & Linux Standalone

Does not account for near plane

It seems this:

DepthInverseProjection/Assets/InverseProjector.shader

Line 62 in 4b3fec0

float3 vposPers = input.ray * Linear01Depth(z);

Does not account for the near clip plane, does it? That is, consider getting a depth value of zero -- that position should be at the near clip plane, but wont this math put it directly at the camera?

Double multiplied by far clip plane

DepthInverseProjection/Assets/InverseProjector.shader

Line 39 in 4b3fec0

float3 rayPers = mul(unity_CameraInvProjection, vpos) * far;

Shouldn't the far clip plane already be accounted for by the inverse projection? Why is the ray multiplied by far again?

Changing projection to a texture?

I know this is kind of old and maybe unsupported. I'm trying to modify this to project a texture of my choosing instead of projecting the lines by default. Any ideas?

Need help including StdLib

Hello keijiro,

I was trying to import the asset to my project but encountered this error regards a library i'm missing:

Shader error in 'Hidden/Test/InverseProjection': Couldn't open include file 'PostProcessing/Shaders/StdLib.hlsl'. at line 5

I'm currently using HDRP but don't really have much idea of how to import this StdLib library, where can i get it and how can i import it into the project so it works?