overte-HifiExperiments/libraries/render-utils/src/forward_sdf_text3D.slf
2019-03-15 12:48:32 -07:00

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<@include gpu/Config.slh@>
<$VERSION_HEADER$>
// Generated on <$_SCRIBE_DATE$>
// sdf_text3D_transparent.frag
// fragment shader
//
// Created by Bradley Austin Davis on 2015-02-04
// Based on fragment shader code from
// https://github.com/paulhoux/Cinder-Samples/blob/master/TextRendering/include/text/Text.cpp
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
<@include DefaultMaterials.slh@>
<@include ForwardGlobalLight.slh@>
<$declareEvalSkyboxGlobalColor()$>
<@include gpu/Transform.slh@>
<$declareStandardCameraTransform()$>
<@include render-utils/ShaderConstants.h@>
<@include sdf_text3D.slh@>
<$declareEvalSDFSuperSampled()$>
layout(location=RENDER_UTILS_ATTR_POSITION_ES) in vec4 _positionES;
layout(location=RENDER_UTILS_ATTR_NORMAL_WS) in vec3 _normalWS;
layout(location=RENDER_UTILS_ATTR_COLOR) in vec4 _color;
layout(location=RENDER_UTILS_ATTR_TEXCOORD01) in vec4 _texCoord01;
#define _texCoord0 _texCoord01.xy
#define _texCoord1 _texCoord01.zw
layout(location=0) out vec4 _fragColor0;
void main() {
float a = evalSDFSuperSampled(_texCoord0);
float alpha = a * _color.a;
if (alpha <= 0.0) {
discard;
}
TransformCamera cam = getTransformCamera();
vec3 fragPosition = _positionES.xyz;
_fragColor0 = vec4(evalSkyboxGlobalColor(
cam._viewInverse,
1.0,
DEFAULT_OCCLUSION,
fragPosition,
normalize(_normalWS),
_color.rgb,
DEFAULT_FRESNEL,
DEFAULT_METALLIC,
DEFAULT_ROUGHNESS),
1.0);
}