Question Motion vectors

Hi,
is there any way of sampling the motion vector texture in a shadergraph or regular shader with HDRP?

Thanks!

 

Hi,

i followed this documentation guide with several iterations
https://docs.unity3d.com/Packages/c...igh-definition@7.2/manual/Motion-Vectors.html

and i am not able to display motion vectors in the
Render Pipeline Debug / Material / Lit
or
Render Pipeline Debug / Material / Hair
section

Could it be that the display is broken in
Unity 2019.3.1f1 HDRP 7.2.1
?

 

more en detail. The light geometry spheres and the the dots generated hair strand does not show any motion vectors in the material section in the debug rendering.

MSAA in Forward is disabled.
Moreover i really tried all the settings from the documentation in several iterations.
e.g.
The green light is an transparent lit shader
The red light is an opaque lit shader
The blonde hair down layer is an opaque hair sg shader
The blonde hair upper layer is an transparent hair sg shader
....

 

Thanks. Thats working.
They are so powerful to get an deep understanding and for debugging.

Does anyone nows why the hairs are displayed mostly green.
Cannot really interpret the color coding.

Is it somehow possible to call the Debug views in an development build?

 

does anybody now how to render motion vectors for meshes drawn using Graphics.DrawMeshInstancedIndirect()?

 

"does anybody now how to render motion vectors for meshes drawn using Graphics.DrawMeshInstancedIndirect()?"

I would love to know this too. When I convert a GameObject to an Entity the Motion Vectors pass is skipped too. Without motion vectors TAA looks terrible when Per Object Motion is required.

 

Here's how i do it to use the motion vector in the shadergraph: ( 2019.4f1 )



GetMotionVectorShaderFunction.hlsl

Code (CSharp):

1. void GetMotionVector_float (float2 UV, out float2 MotionVector)
2. {
3. #if SHADERGRAPH_PREVIEW
4.     MotionVector = float2(0, 0);
5. #else
6.     DecodeMotionVector(LOAD_TEXTURE2D_X(_CameraMotionVectorsTexture, UV), MotionVector);
7. #endif
8. }

 

I need some help, can you tell me how graph work

 

This is really helpful. The party just started.

Tried a while but cannot solve this behaviour.
Unity 2021.10b2

e.g

When you navigate to

• Lighting /Lighting Debug Mode

and you use left or right,
the next mode gets selected
and the selection immidiately jumps back to the top of the menu.

same for

• Lighting/ Fullscreen Debug Mode

So you cannot cycle through these modes with left or right.

The selection jumps immidiately to the top (Shadows /Debug Mode)
and you have to go down again to Lighting/ Fullscreen Debug Mode for every further left or right selection.

 

I need somehelp sir, i got error "undeclared identifier '_CameraMotionVectorsTexture'"

Thank you very much