aboutsummaryrefslogtreecommitdiff
path: root/src/4dvecops/vectoroperations.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/4dvecops/vectoroperations.cpp')
-rw-r--r--src/4dvecops/vectoroperations.cpp30
1 files changed, 0 insertions, 30 deletions
diff --git a/src/4dvecops/vectoroperations.cpp b/src/4dvecops/vectoroperations.cpp
deleted file mode 100644
index d41dad3..0000000
--- a/src/4dvecops/vectoroperations.cpp
+++ /dev/null
@@ -1,30 +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]};
-} \ No newline at end of file