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Add relative-to-camera rendering for large worlds

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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
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38
Source/Engine/Level/Actors/StaticModel.cpp
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@@ -18,7 +18,6 @@
StaticModel::StaticModel(const SpawnParams& params)
: ModelInstanceActor(params)
, _world(Matrix::Identity)
, _scaleInLightmap(1.0f)
, _boundsScale(1.0f)
, _lodBias(0)
@@ -210,16 +209,9 @@ void StaticModel::UpdateBounds()
{
if (Model && Model->IsLoaded())
{
Matrix world;
if (Math::IsOne(_boundsScale))
world = _world;
else
{
Transform t = _transform;
t.Scale *= _boundsScale;
t.GetWorld(world);
}
_box = Model->GetBox(world);
Transform transform = _transform;
transform.Scale *= _boundsScale;
_box = Model->GetBox(transform);
}
else
{
@@ -240,17 +232,21 @@ void StaticModel::Draw(RenderContext& renderContext)
const DrawPass drawModes = (DrawPass)(DrawModes & renderContext.View.Pass);
if (!Model || !Model->IsLoaded() || !Model->CanBeRendered() || drawModes == DrawPass::None)
return;
Matrix world;
renderContext.View.GetWorldMatrix(_transform, world);
if (renderContext.View.Pass == DrawPass::GlobalSDF)
{
GlobalSignDistanceFieldPass::Instance()->RasterizeModelSDF(this, Model->SDF, _world, _box);
GlobalSignDistanceFieldPass::Instance()->RasterizeModelSDF(this, Model->SDF, world, _box);
return;
}
if (renderContext.View.Pass == DrawPass::GlobalSurfaceAtlas)
{
GlobalSurfaceAtlasPass::Instance()->RasterizeActor(this, this, _sphere, _world, Model->LODs.Last().GetBox());
GlobalSurfaceAtlasPass::Instance()->RasterizeActor(this, this, _sphere, world, Model->LODs.Last().GetBox());
return;
}
GEOMETRY_DRAW_STATE_EVENT_BEGIN(_drawState, _world);
GEOMETRY_DRAW_STATE_EVENT_BEGIN(_drawState, world);
// Flush vertex colors if need to
if (_vertexColorsDirty)
@@ -282,18 +278,19 @@ void StaticModel::Draw(RenderContext& renderContext)
#if USE_EDITOR
// Disable motion blur effects in editor without play mode enabled to hide minor artifacts on objects moving
if (!Editor::IsPlayMode)
_drawState.PrevWorld = _world;
_drawState.PrevWorld = world;
#endif
Mesh::DrawInfo draw;
draw.Buffer = &Entries;
draw.World = &_world;
draw.World = &world;
draw.DrawState = &_drawState;
draw.Lightmap = _scene->LightmapsData.GetReadyLightmap(Lightmap.TextureIndex);
draw.LightmapUVs = &Lightmap.UVsArea;
draw.Flags = _staticFlags;
draw.DrawModes = drawModes;
draw.Bounds = _sphere;
draw.Bounds.Center -= renderContext.View.Origin;
draw.PerInstanceRandom = GetPerInstanceRandom();
draw.LODBias = _lodBias;
draw.ForcedLOD = _forcedLod;
@@ -301,7 +298,7 @@ void StaticModel::Draw(RenderContext& renderContext)
Model->Draw(renderContext, draw);
GEOMETRY_DRAW_STATE_EVENT_END(_drawState, _world);
GEOMETRY_DRAW_STATE_EVENT_END(_drawState, world);
}
bool StaticModel::IntersectsItself(const Ray& ray, Real& distance, Vector3& normal)
@@ -311,7 +308,7 @@ bool StaticModel::IntersectsItself(const Ray& ray, Real& distance, Vector3& norm
if (Model != nullptr && Model->IsLoaded())
{
Mesh* mesh;
result = Model->Intersects(ray, _world, distance, normal, &mesh);
result = Model->Intersects(ray, _transform, distance, normal, &mesh);
}
return result;
@@ -473,7 +470,7 @@ bool StaticModel::IntersectsEntry(int32 entryIndex, const Ray& ray, Real& distan
for (int32 i = 0; i < meshes.Count(); i++)
{
const auto& mesh = meshes[i];
if (mesh.GetMaterialSlotIndex() == entryIndex && mesh.Intersects(ray, _world, distance, normal))
if (mesh.GetMaterialSlotIndex() == entryIndex && mesh.Intersects(ray, _transform, distance, normal))
return true;
}
@@ -500,7 +497,7 @@ bool StaticModel::IntersectsEntry(const Ray& ray, Real& distance, Vector3& norma
const auto& mesh = meshes[i];
Real dst;
Vector3 nrm;
if (mesh.Intersects(ray, _world, dst, nrm) && dst < closest)
if (mesh.Intersects(ray, _transform, dst, nrm) && dst < closest)
{
result = true;
closest = dst;
@@ -520,7 +517,6 @@ void StaticModel::OnTransformChanged()
// Base
ModelInstanceActor::OnTransformChanged();
_transform.GetWorld(_world);
UpdateBounds();
}