GoaLitiuM/FlaxEngine
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add relative-to-camera rendering for large worlds

Browse Source
This commit is contained in:
Wojtek Figat
2022-06-21 20:03:13 +02:00
parent f3bd0e469c
commit 134c8b99aa
35 changed files with 331 additions and 195 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
Source/Engine/Graphics/Models/Mesh.cpp
View File

@@ -4,6 +4,7 @@
#include "ModelInstanceEntry.h"
#include "Engine/Content/Assets/Material.h"
#include "Engine/Content/Assets/Model.h"
#include "Engine/Core/Math/Transform.h"
#include "Engine/Graphics/GPUContext.h"
#include "Engine/Graphics/GPUDevice.h"
#include "Engine/Graphics/RenderTask.h"
@@ -319,7 +320,7 @@ bool Mesh::Intersects(const Ray& ray, const Matrix& world, Real& distance, Vecto
{
// Get bounding box of the mesh bounds transformed by the instance world matrix
Vector3 corners[8];
GetCorners(corners);
_box.GetCorners(corners);
Vector3 tmp;
Vector3::Transform(corners[0], world, tmp);
Vector3 min = tmp;
@@ -339,7 +340,38 @@ bool Mesh::Intersects(const Ray& ray, const Matrix& world, Real& distance, Vecto
// Use exact test on raw geometry
return _collisionProxy.Intersects(ray, world, distance, normal);
}
distance = 0;
normal = Vector3::Up;
return false;
#else
return transformedBox.Intersects(ray, distance, normal);
#endif
}
bool Mesh::Intersects(const Ray& ray, const Transform& transform, Real& distance, Vector3& normal) const
{
// Get bounding box of the mesh bounds transformed by the instance world matrix
Vector3 corners[8];
_box.GetCorners(corners);
Vector3 tmp;
transform.LocalToWorld(corners[0], tmp);
Vector3 min = tmp;
Vector3 max = tmp;
for (int32 i = 1; i < 8; i++)
{
transform.LocalToWorld(corners[i], tmp);
min = Vector3::Min(min, tmp);
max = Vector3::Max(max, tmp);
}
const BoundingBox transformedBox(min, max);
// Test ray on box
#if USE_PRECISE_MESH_INTERSECTS
if (transformedBox.Intersects(ray, distance))
{
// Use exact test on raw geometry
return _collisionProxy.Intersects(ray, transform, distance, normal);
}
distance = 0;
normal = Vector3::Up;
return false;