@babylonjs/viewer/dist/chunks/fogFragment-Lnu5KyrF.esm.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

import { S as ShaderStore } from './index-MZPybX0H.esm.js';

// Do not edit.
const name$1 = "fogFragmentDeclaration";
const shader$1 = `#ifdef FOG
#define FOGMODE_NONE 0.
#define FOGMODE_EXP 1.
#define FOGMODE_EXP2 2.
#define FOGMODE_LINEAR 3.
const E=2.71828;uniform vFogInfos: vec4f;uniform vFogColor: vec3f;varying vFogDistance: vec3f;fn CalcFogFactor()->f32
{var fogCoeff: f32=1.0;var fogStart: f32=uniforms.vFogInfos.y;var fogEnd: f32=uniforms.vFogInfos.z;var fogDensity: f32=uniforms.vFogInfos.w;var fogDistance: f32=length(fragmentInputs.vFogDistance);if (FOGMODE_LINEAR==uniforms.vFogInfos.x)
{fogCoeff=(fogEnd-fogDistance)/(fogEnd-fogStart);}
else if (FOGMODE_EXP==uniforms.vFogInfos.x)
{fogCoeff=1.0/pow(E,fogDistance*fogDensity);}
else if (FOGMODE_EXP2==uniforms.vFogInfos.x)
{fogCoeff=1.0/pow(E,fogDistance*fogDistance*fogDensity*fogDensity);}
return clamp(fogCoeff,0.0,1.0);}
#endif
`;
// Sideeffect
if (!ShaderStore.IncludesShadersStoreWGSL[name$1]) {
    ShaderStore.IncludesShadersStoreWGSL[name$1] = shader$1;
}
/** @internal */
const fogFragmentDeclarationWGSL = { name: name$1, shader: shader$1 };

// Do not edit.
const name = "fogFragment";
const shader = `#ifdef FOG
var fog: f32=CalcFogFactor();
#ifdef PBR
fog=toLinearSpace(fog);
#endif
color= vec4f(mix(uniforms.vFogColor,color.rgb,fog),color.a);
#endif
`;
// Sideeffect
if (!ShaderStore.IncludesShadersStoreWGSL[name]) {
    ShaderStore.IncludesShadersStoreWGSL[name] = shader;
}
/** @internal */
const fogFragmentWGSL = { name, shader };

export { fogFragmentWGSL as a, fogFragmentDeclarationWGSL as f };
//# sourceMappingURL=fogFragment-Lnu5KyrF.esm.js.map