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Fix glow line vanishing, improve transparency interaction

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This commit is contained in:
Brad Davis 2016-07-07 19:01:41 -07:00
parent 8ca3630cfa
commit c644c87e69
3 changed files with 14 additions and 31 deletions
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13
libraries/render-utils/src/GeometryCache.cpp
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@ -11,11 +11,12 @@
#include "GeometryCache.h"
#include <cmath>
#include <QNetworkReply>
#include <QThreadPool>
#include <QtCore/QThreadPool>
#include <QtCore/QFileInfo>
#include <QtNetwork/QNetworkReply>
#include <FSTReader.h>
#include <NumericalConstants.h>
@ -1462,11 +1463,11 @@ void GeometryCache::renderGlowLine(gpu::Batch& batch, const glm::vec3& p1, const
auto GS = gpu::Shader::createGeometry(std::string(glowLine_geom));
auto PS = gpu::Shader::createPixel(std::string(glowLine_frag));
auto program = gpu::Shader::createProgram(VS, GS, PS);
state->setCullMode(gpu::State::CULL_BACK);
state->setCullMode(gpu::State::CULL_NONE);
state->setDepthTest(true, true, gpu::LESS_EQUAL);
state->setDepthBias(1.0f);
state->setDepthBiasSlopeScale(1.0f);
state->setBlendFunction(true, gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA);
state->setBlendFunction(true,
gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA,
gpu::State::FACTOR_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ONE);
gpu::Shader::BindingSet slotBindings;
slotBindings.insert(gpu::Shader::Binding(std::string("normalFittingMap"), render::ShapePipeline::Slot::MAP::NORMAL_FITTING));
gpu::Shader::makeProgram(*program, slotBindings);

5
libraries/render-utils/src/glowLine.slf
View file

@ -24,9 +24,12 @@ void main(void) {
d.x = 0.0;
}
float alpha = 1.0 - length(d);
if (alpha < 0.01) {
if (alpha <= 0.0) {
discard;
}
alpha = pow(alpha, 10.0);
if (alpha < 0.05) {
discard;
}
_fragColor = vec4(inColor.rgb, alpha);
}

27
libraries/render-utils/src/glowLine.slg
View file

@ -10,6 +10,9 @@
//
#extension GL_EXT_geometry_shader4 : enable
<@include gpu/Transform.slh@>
<$declareStandardCameraTransform()$>
layout(location = 0) in vec4 inColor[];
layout(location = 0) out vec4 outColor;
@ -18,30 +21,6 @@ layout(location = 1) out vec3 outLineDistance;
layout(lines) in;
layout(triangle_strip, max_vertices = 24) out;
struct TransformCamera {
mat4 _view;
mat4 _viewInverse;
mat4 _projectionViewUntranslated;
mat4 _projection;
mat4 _projectionInverse;
vec4 _viewport;
};
layout(std140) uniform transformCameraBuffer {
TransformCamera _camera;
};
TransformCamera getTransformCamera() {
return _camera;
}
vec3 getEyeWorldPos() {
return _camera._viewInverse[3].xyz;
}
vec3 ndcToEyeSpace(in vec4 v) {
TransformCamera cam = getTransformCamera();
vec4 u = cam._projectionInverse * v;