Hi guys,

I'm researching techniques for scene voxelization, and so far, only few papers has been found, but I found a great one! So now I'm in the process of creating the shader, but a problem stroke my mind, the paper is based on OpenGl (Theory is the same), and OpenGl has completely re-writable textures, in the shader, like so:

imageStore(voxelColor, voxelPos, outColor);

// voxelColor -> 3D Texture
// voxelPos   -> xyz Position of texture
// outColor, well, the data needed to be written

How can this be achieved with Directx 11 with HLSL? (Maybe I forgot something... Like usual )

Thanks, as usual!

-MIGI0027

Thanks for making me aware of that, but I thought that you could only output data from the computer shader, is it possible to write to it in the pixel shader?

Damn, sorry, didn't fully read your comment, sorry about that...

EDIT: Not solved yet!

Sorry to annoy you further, but I have one last question regarding this topic.

Q: Do you send the 3D Texture (in this case), just like a read only shader resource [DeviceContext->XSSetShaderResources(....)], or do they require a different method?

-MIGI0027

You don't use a shader resource view, you need to create an unordered access view (UAV) for the texture that you want to write to. To bind it to a compute shader you use CSSetUnorderedAccessViews, and to a pixel shader you use OMSetRenderTargetsAndUnorderedAccessViews.

Hi again, thanks btw!

Another question...

How would one send such a resource to the GPU for reading to the PS, without setting any render targets. Here's my questions:

• When calling OMSetRenderTargetsAndUnorderedAccessViews, if you set the backbuffer, numRTS, RTS to NULL, does it set the render targets to NULL, or does it skip the placement of the render targets.
• Is there a way of treating the content of an UAV as a SRV?

Thanks

-MIGI0027

Unbird, thanks! (You too MJP, Phantom).

Paper: http://www.seas.upenn.edu/~pcozzi/OpenGLInsights/OpenGLInsights-SparseVoxelization.pdf

I've read one or two more, but I don't have their address right now, forgot them ...

Thanks! Again...

-MIGI0027