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R"(
// Copyright (c) 2010-2026, Lawrence Livermore National Security, LLC. Produced
// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
// LICENSE and NOTICE for details. LLNL-CODE-443271.
//
// This file is part of the GLVis visualization tool and library. For more
// information and source code availability see https://glvis.org.
//
// GLVis is free software; you can redistribute it and/or modify it under the
// terms of the BSD-3 license. We welcome feedback and contributions, see file
// CONTRIBUTING.md for details.
attribute vec3 vertex;
attribute vec2 textVertex;
attribute vec4 color;
attribute vec3 normal;
attribute vec2 texCoord0;
uniform bool containsText;
uniform mat4 modelViewMatrix;
uniform mat4 projectionMatrix;
uniform mat4 textProjMatrix;
uniform mat3 normalMatrix;
uniform vec4 clipPlane;
varying vec3 fNormal;
varying vec3 fPosition;
varying vec4 fColor;
varying vec2 fTexCoord;
varying float fClipVal;
void setupClipPlane(in float dist)
{
fClipVal = dist;
}
void main()
{
vec4 pos = modelViewMatrix * vec4(vertex, 1.0);
fPosition = pos.xyz;
fNormal = normalize(normalMatrix * normal);
fColor = color;
fTexCoord = texCoord0.xy;
setupClipPlane(dot(vec4(pos.xyz, 1.0), clipPlane));
pos = projectionMatrix * pos;
gl_Position = pos;
if (containsText)
{
vec4 textOffset = textProjMatrix * vec4(textVertex, 0.0, 0.0);
gl_Position += vec4((textOffset.xy * pos.w), -0.005, 0.0);
}
})"
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