Is it possible to perform 3D-cinematic rendering from MDCT by 3D Slicer? Is there any modules to do that?

This is amazing, thanks a lot for sharing. This seems to be a very simple and efficient way of providing textured appearance without generating 3D textures or 2D texture coordinates. This could be particularly useful when different material is applied to each structure (using multi-volume rendering …

I’m going to try this method in peritoneal carcinomatosis assessing by MDCT ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6158831/ )

Thanks to all of you for your help. I understand that I can use Slicer to transfer CT data to NIfTI format then upload it to JavaScript web page. Am I right?

Egor- CT scans have the advantage of having calibrated image intensity, but the disavantage that bone has extreme X-Ray attenuation relative to soft tissue. Therefore, nice CT rendering will require a nicely designed transfer texture. In brief, MRI scans often look nice without a transfer texture, …

I was able to save the CTA-cardio.nrrd volume from Slicer’s SampleData module in nii format and load it in Chris’s web page. Looked really nice. If you adjust the min/max range you can highlight different structures.

This is really nice rendering. Would it with well with large datasets from morphosource? Would it be possible to implement this technique in slicer?

Agreed - nice rendering @Chris_Rorden :+1: @drouin-simon and I discussed it a bit - VTK needs to have better support for sending down extra transfer function parameters (e.g. the extra 2D texture for the sphere map for the normal vector lookup). Simon has a good idea what’s needed but it would als…

This sounds like multi-volume rendering: multiple images used as inputs - some of them are 3D volumes as usual, some of them are 3-slice volumes that contain RGB components of the matcaps texture image. Could we use multi-volume renderer with special shaders to implement the matcaps lookup?

For information, there is currently a PR in VTK that adds Physically Based Rendering. Michael said: It is supported on the PolyDataMapper only. You can add any texture you want (vtkProperty::AddTexture) and sample it in the shader. Environment reflections (sphere map) and normal mapping will be…

How to perform 3D-cinematic rendering?

Support

Chris_Rorden (Chris Rorden) July 6, 2019, 11:36am 15

Here is what the CTA-cardio image looks like with the MatCaps and a simple transfer texture. I suspect a trasnfer-texture specific pre-filter could improve this.

Topic		Replies	Views
VTK multivolume/cinematic volume rendering Support	59	4625	September 3, 2024
Save volume rendering as STL file Support segmentation , faq	40	30397	October 21, 2021
Volume rendering produces block of "white noise" Support	38	2852	April 22, 2020
GPU based volume rendering fails if one dimension is more than 2000px Support	33	2598	December 16, 2025
SpatialLabs stereoscopic display Feature requests	15	862	September 4, 2024

How to perform 3D-cinematic rendering?

Related topics