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Various fixes and improvements for large worlds rendering

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This commit is contained in:
Wojtek Figat
2022-06-28 20:26:01 +02:00
parent b1640515c4
commit 27d266546e
18 changed files with 80 additions and 70 deletions
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11
Source/Engine/Terrain/Terrain.cpp
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@@ -512,7 +512,6 @@ void Terrain::Draw(RenderContext& renderContext)
const float chunkSize = TERRAIN_UNITS_PER_VERTEX * (float)_chunkSize;
const float posToUV = 0.25f / chunkSize;
Float4 localToUV(posToUV, posToUV, 0.0f, 0.0f);
Matrix localToWorld;
for (const TerrainPatch* patch : _patches)
{
if (!patch->Heightmap)
@@ -522,8 +521,7 @@ void Terrain::Draw(RenderContext& renderContext)
patchTransform.Orientation = Quaternion::Identity;
patchTransform.Scale = Float3(1.0f, patch->_yHeight, 1.0f);
patchTransform = _transform.LocalToWorld(patchTransform);
patchTransform.GetWorld(localToWorld);
GlobalSignDistanceFieldPass::Instance()->RasterizeHeightfield(this, patch->Heightmap->GetTexture(), localToWorld, patch->_bounds, localToUV);
GlobalSignDistanceFieldPass::Instance()->RasterizeHeightfield(this, patch->Heightmap->GetTexture(), patchTransform, patch->_bounds, localToUV);
}
return;
}
@@ -533,16 +531,17 @@ void Terrain::Draw(RenderContext& renderContext)
{
if (!patch->Heightmap)
continue;
Matrix worldToLocal;
Matrix localToWorld, worldToLocal;
BoundingSphere chunkSphere;
BoundingBox localBounds;
for (int32 chunkIndex = 0; chunkIndex < TerrainPatch::CHUNKS_COUNT; chunkIndex++)
{
TerrainChunk* chunk = &patch->Chunks[chunkIndex];
Matrix::Invert(chunk->GetWorld(), worldToLocal);
chunk->GetTransform().GetWorld(localToWorld); // TODO: large-worlds
Matrix::Invert(localToWorld, worldToLocal);
BoundingBox::Transform(chunk->GetBounds(), worldToLocal, localBounds);
BoundingSphere::FromBox(chunk->GetBounds(), chunkSphere);
GlobalSurfaceAtlasPass::Instance()->RasterizeActor(this, chunk, chunkSphere, chunk->GetWorld(), localBounds, 1 << 2, false);
GlobalSurfaceAtlasPass::Instance()->RasterizeActor(this, chunk, chunkSphere, chunk->GetTransform(), localBounds, 1 << 2, false);
}
}
return;