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Add terrain rendering support for Global Surface Atlas

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This commit is contained in:
Wojciech Figat
2022-04-29 14:05:03 +02:00
parent 1a711ea14f
commit 5465652466
10 changed files with 80 additions and 44 deletions
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25
Source/Engine/Terrain/Terrain.cpp
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@@ -14,6 +14,7 @@
#include "Engine/Graphics/Textures/GPUTexture.h"
#include "Engine/Profiler/ProfilerCPU.h"
#include "Engine/Renderer/GlobalSignDistanceFieldPass.h"
#include "Engine/Renderer/GlobalSurfaceAtlasPass.h"
Terrain::Terrain(const SpawnParams& params)
: PhysicsColliderActor(params)
@@ -527,7 +528,25 @@ void Terrain::Draw(RenderContext& renderContext)
return;
}
if (renderContext.View.Pass == DrawPass::GlobalSurfaceAtlas)
return; // TODO: Terrain rendering to Global Surface Atlas
{
for (TerrainPatch* patch : _patches)
{
if (!patch->Heightmap)
continue;
Matrix worldToLocal;
BoundingSphere chunkSphere;
BoundingBox localBounds;
for (int32 chunkIndex = 0; chunkIndex < TerrainPatch::CHUNKS_COUNT; chunkIndex++)
{
TerrainChunk* chunk = &patch->Chunks[chunkIndex];
Matrix::Invert(chunk->GetWorld(), worldToLocal);
BoundingBox::Transform(chunk->GetBounds(), worldToLocal, localBounds);
BoundingSphere::FromBox(chunk->GetBounds(), chunkSphere);
GlobalSurfaceAtlasPass::Instance()->RasterizeActor(this, chunk, chunkSphere, chunk->GetWorld(), localBounds, 1 << 2);
}
}
return;
}
PROFILE_CPU();
@@ -541,7 +560,7 @@ void Terrain::Draw(RenderContext& renderContext)
for (int32 patchIndex = 0; patchIndex < _patches.Count(); patchIndex++)
{
const auto patch = _patches[patchIndex];
if (frustum.Intersects(patch->_bounds))
if (renderContext.View.IsCullingDisabled || frustum.Intersects(patch->_bounds))
{
// Skip if has no heightmap or it's not loaded
if (patch->Heightmap == nullptr || patch->Heightmap->GetTexture()->ResidentMipLevels() == 0)
@@ -552,7 +571,7 @@ void Terrain::Draw(RenderContext& renderContext)
{
auto chunk = &patch->Chunks[chunkIndex];
chunk->_cachedDrawLOD = 0;
if (frustum.Intersects(chunk->_bounds))
if (renderContext.View.IsCullingDisabled || frustum.Intersects(chunk->_bounds))
{
if (chunk->PrepareDraw(renderContext))
{