Custom Renderer - Shader Possibilities

CesiumJS
1

Hi,

i have read post from Hannah, where she gave a tip to write a custom shader.
Does there exist any documentation for this ?

In my project we have a partner with huge know-how in OpenGL and computation on GPU. The partner uses its own datastructures for very fast access to the data and rendering. Is it possible to transfer/transfer this to Cesium? What is the best starting point ? For Rendering the partner uses ray-tracing mechanisms - is there a chance to use this in connection with cesium ?

Best regards

Rüdiger

2

Hello Rüdiger,

You can create a custom material by writing a GLSL shader and adding it to our Material class. Here is an example for a checkerboard material:

I don’t know about using ray-tracing in Cesium. Maybe someone else will have pointers there.

Best,

Hannah

3

Hi Rüdiger, it’s possible to do raytracing in WebGL/GLSL but won’t necessarily be easy to integrate with Cesium. Could you give more details about the type of rendering you are trying to do?

4

Hi Sean, Hannah,

thank you for the response.

Concerning rendering:

Our partner has it’s own datastructure for a pointcloud and algorithms to search and navigate within this structure.

Rendering a scene, i.e. pointclouds, we discuss posibilities of integration - so I asked here.

One idea was writing a service for the rendering resp. a renderer, but I don’t where is the starting point.

I can deliver more details next week.

Regards

Rüdiger