Where did the czm_globeDepthTexture go?

[znkim]

hello,
I am developing using CesiumJs.
I have been using it well so far and would like to try more things.

I am using the shader in Cesium PostProcessing.

I’m trying to implement my own ssao instead of the built-in ssao by utilizing the depth texture.
However, the built-in uniform depth texture is 1 byte, which is not very precise.

So I’ve been using the czm_globeDepthTexture.
This is 4 bytes of data, which is good.

But now, when I use czm_globeDepthTexture, I get an error.

Did it get deprecated due to a version change?

Thanks.

float depth = czm_readDepth(czm_globeDepthTexture, v_textureCoordinates);

[znkim]

I found a solution to the problem in another link.
And I succeeded in implementing SSAO.

Postprocessing with normal and depth information

Thank you Sean. I use the tileLoadProgressEvent in order to attach post processing stage as soon as “some” tiles have been loaded. This is enough to make czm_globeDepthTexture available. However, the uniform becomes unavailable again (and Cesium throws an exception) as soon as the depth buffer is unused/empty (when nothing is in view while looking upward for example). I know this is a rare occurrence when using Cesium “normally” but it can be a problem for, say, a flight simulator