include glsl in ray tracing shader error

[yyc-git]

Hello @maierfelix ! my code is: rchit glsl:

#version 460
#extension GL_NV_ray_tracing : require
#extension GL_GOOGLE_include_directive : enable
#pragma shader_stage(closest)

#include "wavefront.glsl"

...

wavefront.glsl:

struct sceneDesc
{
  int  objId;
  int  txtOffset;
  mat4 transfo;
  mat4 transfoIT;
};

when run the code, it error:

error: '#include' : #error unexpected include directive for header name: wavefront.glsl

How to include glsl??? Thanks very much!!!

[maierfelix]

The included glsl compiler doesn't handle includes, it's up to the application. You have to recursively lookup the content of the included file and inline it. This is how I do it in my projects - see here.

Alternatively you can use the nvk-essentials package which contains a GLSL compiler and support for includes.

[yyc-git]

Thanks for your reply!!!

Yes, I can use "include" by import your "loadShaderFile"(created from your project). But it has a little bug: inliner.mjs

import fs from "fs";
//should add this line!
import path from "path";

...

So the complete code to support include is: index.mjs

//should move inliner.mjs to my project

import { loadShaderFile } from "./inliner.mjs";
...
  // rasterization shaders
  let vertexShaderModule = device.createShaderModule({
    code: loadShaderFile(`${baseShaderPath}/screen.vert`)
  });
  let fragmentShaderModule = device.createShaderModule({
    code: loadShaderFile(`${baseShaderPath}/screen.frag`)
  });

  // ray-tracing shaders
  let rayGenShaderModule = device.createShaderModule({
    code: loadShaderFile(`${baseShaderPath}/ray-generation.rgen`)
  });
  let rayCHitShaderModule = device.createShaderModule({
    code: loadShaderFile(`${baseShaderPath}/ray-closest-hit.rchit`)
  });
  let rayMissShaderModule = device.createShaderModule({
    code: loadShaderFile(`${baseShaderPath}/ray-miss.rmiss`)
  });

ray-closest-hit.rchit

#version 460
...
#extension GL_GOOGLE_include_directive : enable
#pragma shader_stage(closest)

#include "wavefront.glsl"

wavefront.glsl

//define the export code like:
struct Data1
{
  float objId;
};

int getData2(){
  return 1;
}