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authorLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-03-29 12:03:58 +0200
committerLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-03-30 01:01:51 +0200
commitbf0f56a01b67e3cc13c4ba4cb8d539a0295e5e06 (patch)
treeff2dc007c07960afa3e121cfd97c82a0de67e795 /src/Frustum.cpp
parentNum of parsing threads now depends from num of CPU cores (diff)
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Diffstat (limited to '')
-rw-r--r--src/Frustum.cpp114
1 files changed, 57 insertions, 57 deletions
diff --git a/src/Frustum.cpp b/src/Frustum.cpp
index e928e6b..ef60eb0 100644
--- a/src/Frustum.cpp
+++ b/src/Frustum.cpp
@@ -1,63 +1,63 @@
#include "Frustum.hpp"
-#include <glm/gtc/type_ptr.hpp>
-
-void Frustum::NormalizePlane(FrustumSide side) {
- float magnitude = (float) sqrt(frustum[side][A] * frustum[side][A] + frustum[side][B] * frustum[side][B] + frustum[side][C] * frustum[side][C]);
-
- frustum[side][A] /= magnitude;
- frustum[side][B] /= magnitude;
- frustum[side][C] /= magnitude;
- frustum[side][D] /= magnitude;
+Frustum::Frustum(const glm::mat4 &vpMat) {
+ planes[RIGHT] = glm::vec4(
+ vpMat[0][3] - vpMat[0][0],
+ vpMat[1][3] - vpMat[1][0],
+ vpMat[2][3] - vpMat[2][0],
+ vpMat[3][3] - vpMat[3][0]);
+
+ planes[LEFT] = glm::vec4(
+ vpMat[0][3] + vpMat[0][0],
+ vpMat[1][3] + vpMat[1][0],
+ vpMat[2][3] + vpMat[2][0],
+ vpMat[3][3] + vpMat[3][0]);
+
+ planes[BOTTOM] = glm::vec4(
+ vpMat[0][3] + vpMat[0][1],
+ vpMat[1][3] + vpMat[1][1],
+ vpMat[2][3] + vpMat[2][1],
+ vpMat[3][3] + vpMat[3][1]);
+
+ planes[TOP] = glm::vec4(
+ vpMat[0][3] - vpMat[0][1],
+ vpMat[1][3] - vpMat[1][1],
+ vpMat[2][3] - vpMat[2][1],
+ vpMat[3][3] - vpMat[3][1]);
+
+ planes[FAR] = glm::vec4(
+ vpMat[0][3] - vpMat[0][2],
+ vpMat[1][3] - vpMat[1][2],
+ vpMat[2][3] - vpMat[2][2],
+ vpMat[3][3] - vpMat[3][2]);
+
+ planes[NEAR] = glm::vec4(
+ vpMat[0][3] + vpMat[0][2],
+ vpMat[1][3] + vpMat[1][2],
+ vpMat[2][3] + vpMat[2][2],
+ vpMat[3][3] + vpMat[3][2]);
+
+ for (auto &plane : planes) {
+ float magnitude = sqrt(plane.x * plane.x + plane.y * plane.y + plane.z * plane.z);
+ plane.x /= magnitude;
+ plane.y /= magnitude;
+ plane.z /= magnitude;
+ plane.w /= magnitude;
+ }
}
-void Frustum::UpdateFrustum(const glm::mat4& vpmat) {
- vp = vpmat;
- float *clip = glm::value_ptr(vp);
-
- frustum[RIGHT][A] = clip[3] - clip[0];
- frustum[RIGHT][B] = clip[7] - clip[4];
- frustum[RIGHT][C] = clip[11] - clip[8];
- frustum[RIGHT][D] = clip[15] - clip[12];
- NormalizePlane(RIGHT);
-
-
- frustum[LEFT][A] = clip[3] + clip[0];
- frustum[LEFT][B] = clip[7] + clip[4];
- frustum[LEFT][C] = clip[11] + clip[8];
- frustum[LEFT][D] = clip[15] + clip[12];
- NormalizePlane(LEFT);
-
- frustum[BOTTOM][A] = clip[3] + clip[1];
- frustum[BOTTOM][B] = clip[7] + clip[5];
- frustum[BOTTOM][C] = clip[11] + clip[9];
- frustum[BOTTOM][D] = clip[15] + clip[13];
- NormalizePlane(BOTTOM);
-
- frustum[TOP][A] = clip[3] - clip[1];
- frustum[TOP][B] = clip[7] - clip[5];
- frustum[TOP][C] = clip[11] - clip[9];
- frustum[TOP][D] = clip[15] - clip[13];
- NormalizePlane(TOP);
-
- frustum[BACK][A] = clip[3] - clip[2];
- frustum[BACK][B] = clip[7] - clip[6];
- frustum[BACK][C] = clip[11] - clip[10];
- frustum[BACK][D] = clip[15] - clip[14];
- NormalizePlane(BACK);
-
- frustum[FRONT][A] = clip[3] + clip[2];
- frustum[FRONT][B] = clip[7] + clip[6];
- frustum[FRONT][C] = clip[11] + clip[10];
- frustum[FRONT][D] = clip[15] + clip[14];
- NormalizePlane(FRONT);
+bool Frustum::TestPoint(const glm::vec3 &pos) {
+ for (const auto &plane : planes) {
+ if (GetDistanceToPoint(plane, pos) < 0)
+ return false;
+ }
+ return true;
}
-bool Frustum::TestPoint(VectorF point) {
- for (int i = 0; i < 6; i++) {
- if (frustum[i][A] * point.x + frustum[i][B] * point.y + frustum[i][C] * point.z + frustum[i][D] <= 0) {
- return false;
- }
- }
- return true;
-} \ No newline at end of file
+bool Frustum::TestSphere(const glm::vec3 &pos, float radius) {
+ for (const auto &plane : planes) {
+ if (GetDistanceToPoint(plane, pos) < -radius)
+ return false;
+ }
+ return true;
+}