From c6f2be2fed772f300c0cdfe59a4a8a2733d15574 Mon Sep 17 00:00:00 2001
From: sotech117 <michael_foiani@brown.edu>
Date: Wed, 13 Dec 2023 00:51:26 -0500
Subject: fixing rays directions 4d

---
 cmake-build-release/projects_ray | Bin 0 -> 350537 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100755 cmake-build-release/projects_ray

(limited to 'cmake-build-release/projects_ray')

diff --git a/cmake-build-release/projects_ray b/cmake-build-release/projects_ray
new file mode 100755
index 0000000..3b6f9da
Binary files /dev/null and b/cmake-build-release/projects_ray differ
-- 
cgit v1.2.3-70-g09d2


From 07776876eb4638a224fd332944ce9ddca1f5a592 Mon Sep 17 00:00:00 2001
From: sotech117 <michael_foiani@brown.edu>
Date: Wed, 13 Dec 2023 01:30:52 -0500
Subject: hardcode the camera depth to where a result is shown

---
 .idea/QtSettings.xml                               |   2 +-
 cmake-build-release/.ninja_deps                    | Bin 174976 -> 265104 bytes
 cmake-build-release/.ninja_log                     | 116 +++++++++++++++----
 .../projects_ray_autogen.dir/ParseCache.txt        | 124 ++++++++++-----------
 cmake-build-release/Testing/Temporary/LastTest.log |   4 +-
 cmake-build-release/projects_ray                   | Bin 350537 -> 350681 bytes
 scenefiles-4d/unit_sphere.json                     |   2 +-
 src/accelerate/myqtconcurrent.cpp                  |  32 +++---
 src/illuminate/illuminate.cpp                      |   1 +
 src/intersect/intersect.cpp                        |   2 +
 src/vec4ops/vec4ops.cpp                            |   2 +-
 11 files changed, 182 insertions(+), 103 deletions(-)

(limited to 'cmake-build-release/projects_ray')

diff --git a/.idea/QtSettings.xml b/.idea/QtSettings.xml
index faa7b06..dd42746 100644
--- a/.idea/QtSettings.xml
+++ b/.idea/QtSettings.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="QtSettings">
-    <option name="myCurrentProfile" value="Debug" />
+    <option name="myCurrentProfile" value="Release" />
     <option name="mySettingsPerProfile">
       <map>
         <entry key="Debug">
diff --git a/cmake-build-release/.ninja_deps b/cmake-build-release/.ninja_deps
index f9af373..b282309 100644
Binary files a/cmake-build-release/.ninja_deps and b/cmake-build-release/.ninja_deps differ
diff --git a/cmake-build-release/.ninja_log b/cmake-build-release/.ninja_log
index 0f5dc5a..05a15b7 100644
--- a/cmake-build-release/.ninja_log
+++ b/cmake-build-release/.ninja_log
@@ -1,31 +1,101 @@
 # ninja log v5
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diff --git a/cmake-build-release/CMakeFiles/projects_ray_autogen.dir/ParseCache.txt b/cmake-build-release/CMakeFiles/projects_ray_autogen.dir/ParseCache.txt
index 0f02456..0e68cf3 100644
--- a/cmake-build-release/CMakeFiles/projects_ray_autogen.dir/ParseCache.txt
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  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracescene.h
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  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qframe.h
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  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qsizepolicy.h
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-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/aliasing/filter.cpp
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/myqthreads.cpp
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/settings.cpp
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-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/camera/camera.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/vec4ops/vec4ops.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/scenefilereader.h
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-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/bvh.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/bvh.cpp
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/scenedata.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/sceneparser.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracescene.h
 /Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/aspectratiowidget/aspectratiowidget.hpp
  mmc:Q_OBJECT
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/aspectratiowidget/aspectratiowidget.hpp
@@ -1115,10 +1065,20 @@
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  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qwidget.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracescene.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracer.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/sceneparser.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/scenedata.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/bvh.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/bvh.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/vec4ops/vec4ops.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/myqthreads.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/scenefilereader.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/vec4ops/vec4ops.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/camera/camera.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/aliasing/supersample.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/camera/camera.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/mainwindow.h
  mmc:Q_OBJECT
- mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracer.h
+ mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/mainwindow.h
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/cmake-build-release/projects_ray_autogen/moc_predefs.h
  mdp:/Library/Developer/CommandLineTools/SDKs/MacOSX13.1.sdk/usr/include/Availability.h
  mdp:/Library/Developer/CommandLineTools/SDKs/MacOSX13.1.sdk/usr/include/AvailabilityInternal.h
@@ -1571,6 +1531,7 @@
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/camera/camera.h
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracer.h
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracescene.h
+ mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/aspectratiowidget/aspectratiowidget.hpp
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/rgba.h
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/scenedata.h
  mdp:/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/sceneparser.h
@@ -1621,6 +1582,7 @@
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qiterator.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qline.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qlist.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qlocale.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qlogging.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qmalloc.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qmap.h
@@ -1641,6 +1603,7 @@
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qprocessordetection.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qrect.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qrefcount.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qregularexpression.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qscopedpointer.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qscopeguard.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtCore.framework/Versions/A/Headers/qset.h
@@ -1713,20 +1676,57 @@
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtGui.framework/Versions/A/Headers/qtguiexports.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtGui.framework/Versions/A/Headers/qtguiglobal.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtGui.framework/Versions/A/Headers/qtransform.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtGui.framework/Versions/A/Headers/qvalidator.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtGui.framework/Versions/A/Headers/qwindowdefs.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtOpenGLWidgets.framework/Versions/A/Headers/QOpenGLWidget
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtOpenGLWidgets.framework/Versions/A/Headers/qopenglwidget.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtOpenGLWidgets.framework/Versions/A/Headers/qtopenglwidgetsexports.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtOpenGLWidgets.framework/Versions/A/Headers/qtopenglwidgetsglobal.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QBoxLayout
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QCheckBox
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QDoubleSpinBox
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QLabel
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QMainWindow
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QPushButton
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QSlider
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QSpinBox
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/QWidget
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qabstractbutton.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qabstractslider.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qabstractspinbox.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qboxlayout.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qcheckbox.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qframe.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qgridlayout.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qlabel.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qlayout.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qlayoutitem.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qmainwindow.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qpushbutton.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qsizepolicy.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qslider.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qspinbox.h
+ mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qtabwidget.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qtwidgets-config.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qtwidgetsexports.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qtwidgetsglobal.h
  mdp:/Users/sotech117/Qt/6.5.2/macos/lib/QtWidgets.framework/Versions/A/Headers/qwidget.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/kdtree.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/rgba.h
-/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/myqtconcurrent.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/illuminate/illuminate.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/main.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/intersect/intersect.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/illuminate/reflect.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracescene.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/mainwindow.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/settings.h
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/illuminate/shadow.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/sceneparser.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/settings.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/accelerate/kdtree.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/raytracer/raytracer.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/raytracerutils.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/texture/texture.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/intersect/normals.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/vec4ops/transform4d.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/vec4ops/rotations4d.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/aliasing/filter.cpp
+/Users/sotech117/Documents/master/graphics/the-all-americans-in-cs1230/src/utils/scenefilereader.cpp
diff --git a/cmake-build-release/Testing/Temporary/LastTest.log b/cmake-build-release/Testing/Temporary/LastTest.log
index 5382781..0500d4b 100644
--- a/cmake-build-release/Testing/Temporary/LastTest.log
+++ b/cmake-build-release/Testing/Temporary/LastTest.log
@@ -1,3 +1,3 @@
-Start testing: Dec 13 00:50 EST
+Start testing: Dec 13 01:29 EST
 ----------------------------------------------------------
-End testing: Dec 13 00:50 EST
+End testing: Dec 13 01:29 EST
diff --git a/cmake-build-release/projects_ray b/cmake-build-release/projects_ray
index 3b6f9da..bb364be 100755
Binary files a/cmake-build-release/projects_ray and b/cmake-build-release/projects_ray differ
diff --git a/scenefiles-4d/unit_sphere.json b/scenefiles-4d/unit_sphere.json
index f4a7546..5099526 100644
--- a/scenefiles-4d/unit_sphere.json
+++ b/scenefiles-4d/unit_sphere.json
@@ -21,7 +21,7 @@
         {
           "type": "directional",
           "color": [1.0, 1.0, 1.0],
-          "direction": [-3.0, -2.0, -1.0, 0.0]
+          "direction": [-3.0, -2.0, -1.0, -2.0]
         }
       ]
     },
diff --git a/src/accelerate/myqtconcurrent.cpp b/src/accelerate/myqtconcurrent.cpp
index 259fba3..12e9138 100644
--- a/src/accelerate/myqtconcurrent.cpp
+++ b/src/accelerate/myqtconcurrent.cpp
@@ -1,6 +1,7 @@
 
 #include <QList>
 #include <QtConcurrent>
+#include <iostream>
 #include "../raytracer/raytracer.h"
 #include "../vec4ops/vec4ops.h"
 #include "settings.h"
@@ -48,21 +49,29 @@ void RayTracer::renderParallel(RGBA *imageData, const RayTraceScene &scene)
                 // compute the ray
                 float x = (imageCol - scene.width()/2.f) * viewplaneWidth / scene.width();
                 float y = (imageRow - scene.height()/2.f) * viewplaneHeight / scene.height();
-                float z = (imageDepth - scene.width()/2.f) * viewplaneDepth / scene.width();
+                float z = (imageDepth - scene.depth()/2.f) * viewplaneDepth / scene.depth();
 
                 glm::vec4 pWorld = Vec4Ops::transformPoint4(glm::vec4(0.f), camera.getViewMatrix(), camera.getTranslationVector());
                 glm::vec4 dWorld = Vec4Ops::transformDir4(glm::vec4(x, y, z, -1.0), camera.getViewMatrix());
                 // get the pixel color
                 glm::vec4 pixelColor = getPixelFromRay(pWorld, dWorld, scene, 0);
 
+                if (pixelColor.r > 0) {
+                    std::cout << "pixelColor.r: " << pixelColor.r << ", x" << imageCol << ", y" << imageRow << ", z" << imageDepth << std::endl;
+                }
+
                 // set the pixel color
-                int index = imageRow * scene.width() + imageCol;
-                imageData[index] = RGBA{
-                    (std::uint8_t) (pixelColor.r * 255.f),
-                    (std::uint8_t) (pixelColor.g * 255.f),
-                    (std::uint8_t) (pixelColor.b * 255.f),
-                    (std::uint8_t) (pixelColor.a * 255.f)
-                };
+                if (imageDepth == 250)
+                {
+                    int index = imageRow * scene.width() + imageCol;
+                    imageData[index] = RGBA{
+                            (std::uint8_t) (pixelColor.r * 255.f),
+                            (std::uint8_t) (pixelColor.g * 255.f),
+                            (std::uint8_t) (pixelColor.b * 255.f),
+                            (std::uint8_t) (pixelColor.a * 255.f)
+                    };
+                }
+
             }
         }
     }
@@ -72,11 +81,8 @@ void RayTracer::renderParallel(RGBA *imageData, const RayTraceScene &scene)
     // get the slice relating to z == 0 and set it into int the iamge data array
 
     // int currentSlice = settings.w + 100.f * (5.f / 2.f);
-    int currentSlice = 0;
-    int ptr = currentSlice * scene.width() * scene.height();
-    for (int i = 0; i < scene.width() * scene.height(); i++) {
-        imageData[i] = pixels[ptr + i];
-    }
+
+    std::cout << " here " << std::endl;
 
     if (m_enableAntiAliasing)
     {
diff --git a/src/illuminate/illuminate.cpp b/src/illuminate/illuminate.cpp
index a093fd1..39ecccb 100644
--- a/src/illuminate/illuminate.cpp
+++ b/src/illuminate/illuminate.cpp
@@ -1,3 +1,4 @@
+#include <iostream>
 #include "raytracer/raytracer.h"
 
 glm::vec4  RayTracer::illuminationFromPointLight(
diff --git a/src/intersect/intersect.cpp b/src/intersect/intersect.cpp
index 353508e..69512e3 100644
--- a/src/intersect/intersect.cpp
+++ b/src/intersect/intersect.cpp
@@ -1,3 +1,4 @@
+#include <iostream>
 #include "raytracer/raytracer.h"
 
 /**
@@ -28,6 +29,7 @@ glm::vec4 intersectCircle(
         return glm::vec4(0.f);
     }
 
+
     float t1 = (-b - std::sqrt(discriminant)) / (2.f*a);
     float t2 = (-b + std::sqrt(discriminant)) / (2.f*a);
     if (t1 <= 0 && t2 <= 0) // both behind camera
diff --git a/src/vec4ops/vec4ops.cpp b/src/vec4ops/vec4ops.cpp
index cf0900a..3ef939a 100644
--- a/src/vec4ops/vec4ops.cpp
+++ b/src/vec4ops/vec4ops.cpp
@@ -37,7 +37,7 @@ glm::mat4 Vec4Ops::getViewMatrix4(
         glm::vec4 upVector,
         glm::vec4 overVector) {
     // start with the e3 basis vector, the normalized look vector
-    glm::vec4 e3 = glm::normalize(-lookVector);
+    glm::vec4 e3 = glm::normalize(lookVector);
 
     // calculate e0 basis vector, from the combinatory cross of up and over with e3
     glm::vec4 e0 = cross4(upVector, overVector, e3);
-- 
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