[Feature Request]: Set Render priority

[bluelightzero]

Feature description

My scene makes use of a post-processing quad.

This means that any debug draw geometry gets put through the same post processing.

Ideally I would not like it to affect any of the debug lines drawn. It darkens them too much making them less useful.

If I had control over the material of the debug lines, I would simply enable transparency and increase the render priority

• Post process represented as yellow
• Left quad representing debug draw material desired. (render priority increased and transparency enabled)
• Right quad representing current debug draw material.

Implementation Ideas

A simple project setting to set these 2 properties would be all I need.

[DmitriySalnikov]

Which properties exactly do you want to change?

I also wonder if disabling the depth test helps? https://dd3d.dmitriysalnikov.ru/docs/1.4.1/classDebugDraw3DScopeConfig.html#a7743c67671bdce2e946991e0d66031f5

[bluelightzero]

Which properties exactly do you want to change?

render priority increased and transparency enabled

I also wonder if disabling the depth test helps?

It draws over my post-process now, but also just draws over everything.

[DmitriySalnikov]

render priority increased and transparency enabled

I was referring to the names of the properties in the shaders. I have not found how to increase the priority.

I know how to enable transparency mode, but I don't really understand how to change the priority.

[bluelightzero]

[DmitriySalnikov]

Thanks! I've never even paid attention to this priority property.

And transparency in the shader code is activated when ALPHA is reassigned.

I'm not sure if transparency needs to be activated separately, or is it enough to always activate it when the priority changes? Although I will probably add the option to select the mode (default, all opaque, all transparent) (do I just need to activate transparency or change it depending on the color? 🤔 ).

[bluelightzero]

I found it just ignores priority unless it has something like transparency enabled.

This might be a bug in the engine, I don't know.

[bluelightzero]

[DmitriySalnikov]

Well, according to the documentation, opaque should be sorted with opaque and transparent with transparent, but I only succeeded with transparent ones..

[DmitriySalnikov]

(here regenerate_geometry_meshes is used when clicking on END)

godot.windows.editor.dev.x86_64.mono_3LMiEoPwzm.1.1.1.1.1.mp4

I don't like the fact that transparent shapes are not sorted among themselves by distance to the camera :(

[bluelightzero]

It may be impossible to sort a shape, such as this one:

https://www.khronos.org/opengl/wiki/Transparency_Sorting

[bluelightzero]

Looks like the setting is working well. :)

Is this going in a build soon?

[DmitriySalnikov]

Test binaries will be here

[DmitriySalnikov]

https://www.khronos.org/opengl/wiki/Transparency_Sorting

I'm not sure, but it probably doesn't suit me, because I use MultiMesh, which are sorted once for all instances based on the node/mesh position (and the position of all of them is Vector3(0,0,0)...). Perhaps some combination of flags and shader code can fix this problem, but I did not succeed. If I understand correctly, then the best solution would be to use individual instances for each shape when using no_depth or transparent materials, which will decrease performance and require a lot of code edits.

Is the current renderer priority solution suitable for you?