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skipping verts if they're too far from cast rays

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devZoGok
2024-01-06 14:53:07 +02:00
parent 0887063dec
commit 3f5d8613ce
2 changed files with 15 additions and 8 deletions
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rayCaster.cpp
+12 -5
View File
@@ -7,11 +7,11 @@
using namespace std;
namespace vb01{
vector<RayCaster::CollisionResult> RayCaster::cast(Vector3 rayPos, Vector3 rayDir, Node *node, const float rayLength){
return cast(rayPos, rayDir, vector<Node*>{node}, rayLength);
vector<RayCaster::CollisionResult> RayCaster::cast(Vector3 rayPos, Vector3 rayDir, Node *node, const float rayLength, const float distToRay){
return cast(rayPos, rayDir, vector<Node*>{node}, rayLength, distToRay);
}
vector<RayCaster::CollisionResult> RayCaster::cast(Vector3 rayPos, Vector3 rayDir, vector<Node*> nodes, const float rayLength){
vector<RayCaster::CollisionResult> RayCaster::cast(Vector3 rayPos, Vector3 rayDir, vector<Node*> nodes, const float rayLength, const float distToRay){
vector<CollisionResult> results;
for(Node *node : nodes){
@@ -19,7 +19,7 @@ namespace vb01{
node->getDescendants(descendants);
for(Node *desc : descendants){
vector<CollisionResult> res = retrieveCollisions(rayPos, rayDir, desc, rayLength);
vector<CollisionResult> res = retrieveCollisions(rayPos, rayDir, desc, rayLength, distToRay);
results.insert(results.end(), res.begin(), res.end());
}
}
@@ -29,7 +29,7 @@ namespace vb01{
return results;
}
vector<RayCaster::CollisionResult> RayCaster::retrieveCollisions(Vector3 rayPos, Vector3 rayDir, Node *node, float rayLength){
vector<RayCaster::CollisionResult> RayCaster::retrieveCollisions(Vector3 rayPos, Vector3 rayDir, Node *node, float rayLength, const float distToRay){
Vector3 pos = node->localToGlobalPosition(Vector3::VEC_ZERO);
Quaternion rot = node->localToGlobalOrientation(Quaternion::QUAT_W);
vector<CollisionResult> results;
@@ -40,6 +40,13 @@ namespace vb01{
u32 *indices = m->getMeshBase().indices;
for(int i = 0; i < numVerts / 3; i++){
if(distToRay > 0.0){
Vector3 rayPosToVert = (vertices[i].pos - rayPos);
float dist = sin(rayDir.getAngleBetween(rayPosToVert.norm())) * rayPosToVert.getLength();
if(dist > distToRay) continue;
}
Vector3 pointA = pos + rot * vertices[indices[i * 3]].pos, pointB = pos + rot * vertices[indices[i * 3 + 1]].pos, pointC = pos + rot * vertices[indices[i * 3 + 2]].pos;
Vector3 hypVec = pointA - rayPos;
Vector3 perpVec = (pointB - pointA).cross(pointC - pointA).norm();
rayCaster.h
+3 -3
View File
@@ -15,10 +15,10 @@ namespace vb01{
Mesh *mesh = nullptr;
};
static std::vector<CollisionResult> cast(Vector3, Vector3, Node*, const float = .0);
static std::vector<CollisionResult> cast(Vector3, Vector3, std::vector<Node*>, const float = .0);
static std::vector<CollisionResult> cast(Vector3, Vector3, Node*, const float = .0, const float = .0);
static std::vector<CollisionResult> cast(Vector3, Vector3, std::vector<Node*>, const float = .0, const float = .0);
private:
static std::vector<CollisionResult> retrieveCollisions(Vector3, Vector3, Node*, const float);
static std::vector<CollisionResult> retrieveCollisions(Vector3, Vector3, Node*, const float, const float);
static void sortResults(std::vector<CollisionResult>&);
};