1 files changed, 96 insertions, 80 deletions
diff --git a/dev/MinGfx/src/gfxmath.h b/dev/MinGfx/src/gfxmath.h
index 8bb6c25..86c1061 100644
--- a/dev/MinGfx/src/gfxmath.h
+++ b/dev/MinGfx/src/gfxmath.h
@@ -1,81 +1,97 @@
-/*
- This file is part of the MinGfx Project.
- 
- Copyright (c) 2017,2018 Regents of the University of Minnesota.
- All Rights Reserved.
- 
- Original Author(s) of this File:
-	Dan Keefe, 2018, University of Minnesota
-	
- Author(s) of Significant Updates/Modifications to the File:
-	...
- */
-
-#ifndef SRC_GFXMATH_H_
-#define SRC_GFXMATH_H_
-
-#include "point2.h"
-#include "point3.h"
-#include "vector3.h"
-#include "matrix4.h"
-
-namespace mingfx {
-
-
-/** This class holds a variety of static math functions that are useful to have
- defined with creating graphics programs.
- */
-class GfxMath {
-public:
-
-    /// Returns a if x is less than a and b if x is greater than b.
-    static float Clamp(float x, float a, float b);
-        
-    static float ToRadians(float degrees);
-        
-    static float ToDegrees(float radians);
-    
-    static Vector3 ToRadians(Vector3 degrees);
-    
-    static Vector3 ToDegrees(Vector3 radians);
-    
-    static float Lerp(float a, float b, float alpha);
-
-    static int iLerp(int a, int b, float alpha);
-
-    /// Converts a 2D point on the filmplane represented in Normalized Device
-    /// Coorindates, which means (-1,1) for the top left corner of the screen and
-    /// (1,-1) for the bottom right corner, to a 3D point that lies on the camera's
-    /// near plane.  Useful for converting mouse coordinates into a 3D point.
-    /// Remember that this uses NORMALIZED device coordinates for the screenPt,
-    /// not pixels.  GraphicsApp and most other graphics engines report mouse move
-    /// events in pixels, so you need to convert these to normalized device coordinates
-    /// first.  If you are using GraphicsApp, you can do this with:
-    /// Point2 normPos = graphicsApp->pixels_to_normalized_coordinates(mousePos);
-    static Point3 ScreenToNearPlane(const Matrix4 &viewMatrix, const Matrix4 &projMatrix, const Point2 &normalizedScreenPt);
-
-    /// Similar to filmplane2D_to_nearplane3D() but here rather than using the
-    /// nearplane, you specify the depth of the plane to use as a distance away
-    /// from the camera's focal point.
-    static Point3 ScreenToDepthPlane(const Matrix4 &viewMatrix, const Matrix4 &projMatrix, const Point2 &normalizedScreenPt, float planeDepth);
-
-    /// Converts a 2D point on the filmplane represented in Normalized Device
-    /// Coorindates, which means (-1,1) for the top left corner of the screen and
-    /// (1,-1) for the bottom right corner, to a 3D point in the world.  The depth
-    /// buffer value under the pixel must be supplied. If you are using GraphicsApp,
-    /// you can use the mouse pos in pixels to get the required arguments like this:
-    /// Point2 normPos = graphicsApp->pixels_to_normalized_coordinates(mousePos);
-    /// float normZ = graphicsApp->z_value_at_pixel(mousePos);
-    static Point3 ScreenToWorld(const Matrix4 &viewMatrix, const Matrix4 &projMatrix, const Point2 &normalizedScreenPt, float normalizedZ);
-
-
-    static const float PI;
-    static const float TWO_PI;
-    static const float HALF_PI;
-};
-
-
-    
-} // end namespace
-
+/*
+ This file is part of the MinGfx Project.
+ 
+ Copyright (c) 2017,2018 Regents of the University of Minnesota.
+ All Rights Reserved.
+ 
+ Original Author(s) of this File:
+	Dan Keefe, 2018, University of Minnesota
+	
+ Author(s) of Significant Updates/Modifications to the File:
+	...
+ */
+
+#ifndef SRC_GFXMATH_H_
+#define SRC_GFXMATH_H_
+
+#include "point2.h"
+#include "point3.h"
+#include "vector3.h"
+#include "matrix4.h"
+
+namespace mingfx {
+
+
+/** This class holds a variety of static math functions that are useful to have
+ defined with creating graphics programs.
+ */
+class GfxMath {
+public:
+
+    /// MinGfx specific implementations of trigonometric functions included to
+    /// solve compilation issues between different platforms.
+    static float sin(float a);
+
+    static float cos(float a);
+
+    static float tan(float a);
+
+    static float asin(float a);
+
+    static float acos(float a);
+
+    static float atan(float a);
+
+    static float atan2(float a, float b);
+
+    /// Returns a if x is less than a and b if x is greater than b.
+    static float Clamp(float x, float a, float b);
+        
+    static float ToRadians(float degrees);
+        
+    static float ToDegrees(float radians);
+    
+    static Vector3 ToRadians(Vector3 degrees);
+    
+    static Vector3 ToDegrees(Vector3 radians);
+    
+    static float Lerp(float a, float b, float alpha);
+
+    static int iLerp(int a, int b, float alpha);
+
+    /// Converts a 2D point on the filmplane represented in Normalized Device
+    /// Coorindates, which means (-1,1) for the top left corner of the screen and
+    /// (1,-1) for the bottom right corner, to a 3D point that lies on the camera's
+    /// near plane.  Useful for converting mouse coordinates into a 3D point.
+    /// Remember that this uses NORMALIZED device coordinates for the screenPt,
+    /// not pixels.  GraphicsApp and most other graphics engines report mouse move
+    /// events in pixels, so you need to convert these to normalized device coordinates
+    /// first.  If you are using GraphicsApp, you can do this with:
+    /// Point2 normPos = graphicsApp->pixels_to_normalized_coordinates(mousePos);
+    static Point3 ScreenToNearPlane(const Matrix4 &viewMatrix, const Matrix4 &projMatrix, const Point2 &normalizedScreenPt);
+
+    /// Similar to filmplane2D_to_nearplane3D() but here rather than using the
+    /// nearplane, you specify the depth of the plane to use as a distance away
+    /// from the camera's focal point.
+    static Point3 ScreenToDepthPlane(const Matrix4 &viewMatrix, const Matrix4 &projMatrix, const Point2 &normalizedScreenPt, float planeDepth);
+
+    /// Converts a 2D point on the filmplane represented in Normalized Device
+    /// Coorindates, which means (-1,1) for the top left corner of the screen and
+    /// (1,-1) for the bottom right corner, to a 3D point in the world.  The depth
+    /// buffer value under the pixel must be supplied. If you are using GraphicsApp,
+    /// you can use the mouse pos in pixels to get the required arguments like this:
+    /// Point2 normPos = graphicsApp->pixels_to_normalized_coordinates(mousePos);
+    /// float normZ = graphicsApp->z_value_at_pixel(mousePos);
+    static Point3 ScreenToWorld(const Matrix4 &viewMatrix, const Matrix4 &projMatrix, const Point2 &normalizedScreenPt, float normalizedZ);
+
+
+    static const float PI;
+    static const float TWO_PI;
+    static const float HALF_PI;
+};
+
+
+    
+} // end namespace
+
 #endif
 \ No newline at end of file