Shader color from camera distance

[pacox21]

Hello 🙂

Is there a way to input the camera distance into a shader to control its color ?

I can't find any solution ...

Thanks for your help !

Francis

[peter.horvath6V6K3]

You can access the ray length (Rl) via a state_float shader, which is the distance from the ray origin (camera) to the shading point.

[pacox21]

Thanks Peter, I'll give it a try and share my progress !

[pacox21]

I can't get it to work ... I don't get how to output a Z like render of my surface with a black and white gradient ... Any tip ?

[pacox21]

I plug the output of the RL into a ramp_float node, but all I can get is a uniform color, even when I play with the spline or the UV projection

[peter.horvath6V6K3]

It's an absolute distance (in meters), you need to remap with a range shader.

[pacox21]

It works !! Thank you for your help Peter !