1 files changed, 0 insertions, 63 deletions
diff --git a/src/4dvecops/vec4operations.cpp b/src/4dvecops/vec4operations.cpp
deleted file mode 100644
index 1ffe673..0000000
--- a/src/4dvecops/vec4operations.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-#include "raytracer/raytracer.h"
-
-// vector operations on 4d vectors,
-// reference: https://hollasch.github.io/ray4/Four-Space_Visualization_of_4D_Objects.html#chapter5
-
-glm::vec4 cross4(
-        glm::vec4 u,
-        glm::vec4 v,
-        glm::vec4 w) {
-    float a = (v[0] * w[1]) - (v[1] * w[0]);
-    float b = (v[0] * w[2]) - (v[2] * w[0]);
-    float c = (v[0] * w[3]) - (v[3] * w[0]);
-    float d = (v[1] * w[2]) - (v[2] * w[1]);
-    float e = (v[1] * w[3]) - (v[3] * w[1]);
-    float f = (v[2] * w[3]) - (v[3] * w[2]);
-
-    glm::vec4 result;
-    result[0] = (u[1] * f) - (u[2] * e) + (u[3] * d);
-    result[1] = -(u[0] * f) + (u[2] * c) - (u[3] * b);
-    result[2] = (u[0] * e) - (u[1] * c) + (u[3] * a);
-    result[3] = -(u[0] * d) + (u[1] * b) - (u[2] * a);
-
-    return result;
-}
-
-glm::vec4 dot4(
-        glm::vec4 u,
-        glm::vec4 v) {
-    return {u[0] * v[0], u[1] * v[1], u[2] * v[2], u[3] * v[3]};
-}
-
-glm::mat4 getViewMatrix4(
-        glm::vec4 fromPoint,
-        glm::vec4 toPoint,
-        glm::vec4 upVector,
-        glm::vec4 lookVector) {
-
-    // calculate e3 basis vector, the transformation col of view matrix
-    if (glm::distance(fromPoint, toPoint) < 0.0001f) {
-        throw std::runtime_error("fromPoint and toPoint are the same");
-    }
-    glm::vec4 e3 = glm::normalize(fromPoint - toPoint);
-
-    // calculate e2 basis vector, from the combinatory cross of up and over with e3
-    glm::vec4 e2 = cross4(upVector, lookVector, e3);
-    e2 = glm::normalize(e2);
-    if (glm::distance(e2, glm::vec4{0, 0, 0, 0}) < 0.0001f) {
-        throw std::runtime_error("invalid up vector");
-    }
-
-    // calculate e1 basis vector, from the cross of only the over vector
-    glm::vec4 e1 = cross4(lookVector, e3, e2);
-    e1 = glm::normalize(e1);
-    if (glm::distance(e1, glm::vec4{0, 0, 0, 0}) < 0.0001f) {
-        throw std::runtime_error("invalid over vector");
-    }
-
-    // calculate e0 basis vector, the 4d orthogonal vector to the other 3 bases
-    glm::vec4 e0 = cross4(e3, e2, e1);
-    e0 = glm::normalize(e0);
-
-    return {e2, e1, e0, e3};
-}
-\ No newline at end of file