ebrithilnogare / raymarching Goto Github PK

This change will be applied after ray march is done and found something and before returning color.

Beware of:

• do not put it into if inside loop, just break and handle it after cycle for code optimization

Our code ref:

Solution ref:

https://github.com/SebLague/Ray-Marching/blob/f7e44c15a212dec53b244b1f53cdaf318f6ec700/Assets/Scripts/SDF/Raymarching.compute#L172-L177

https://github.com/SebLague/Ray-Marching/blob/master/Assets/Scripts/SDF/Raymarching.compute#L223-L225

With this, we can use this rendering step in any scene and it will render over / under objects correctly.

Move RayMarcher pass before everything.
Write ray distance into gl_FragDepth.

ref: https://registry.khronos.org/OpenGL-Refpages/es3.0/html/gl_FragDepth.xhtml

https://docs.unity3d.com/2017.2/Documentation/Manual/SL-MultipleProgramVariants.html

Create a smooth min function that will replace min(a, b).

ref of solution:

https://www.shadertoy.com/view/fl3GDr (line: 4)

ref in our code: