DX11 IndirectBasic question

vvvv beta question
1

hey!

i have a question regarding to the indirectlookup example in the dx11-girlpower package ( dx11-vvvv-girlpower/girlpower/sm5/directcompute/indirectlookup at master · letmp/dx11-vvvv-girlpower · GitHub ).

the AppendStructuredBuffer contains only ids of points that match a certain condition.

with the help of IndexIndirect the shader knows, which points he has to draw.

my question:
how can I filter the coordinates in a computeshader? here is a snippet of the code i am using:

but this gives me ALL coordinates of the streamoutbuffer instead of the filtered coords.

ideas anyone?

2

No one here who wanted to filter a streamout buffer and use it in a computeshader?

3

You need to set indirect dispatch, since you are bound to warp size in case of compute shader.

https://github.com/mrvux/dx11-vvvv/commit/34588169c81266a5dc21ef0ce022ee727e20edc6

Adds node to build such a dispatcher.

4

thanks for your answer, vux!

unfortunately i cannot get it to work when using the dispatchIndirect node.
can you upload a help patch in analogy to the indirectlookup example from girlpower?