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frustum culling optimization

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This commit is contained in:
Turanszki Janos
2020-08-30 00:12:58 +02:00
parent a1acf8920a
commit ffbd40a236
4 changed files with 29 additions and 12 deletions
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WickedEngine/wiIntersect.cpp
+16
View File
@@ -358,6 +358,22 @@ Frustum::BoxFrustumIntersect Frustum::CheckBox(const AABB& box) const
return(BOX_FRUSTUM_INSIDE);
return(BOX_FRUSTUM_INTERSECTS);
}
bool Frustum::CheckBoxFast(const AABB& box) const
{
XMVECTOR max = XMLoadFloat3(&box._max);
XMVECTOR min = XMLoadFloat3(&box._min);
XMVECTOR zero = XMVectorZero();
for (size_t p = 0; p < 6; ++p)
{
auto lt = XMVectorLess(XMLoadFloat4(&planes[p]), zero);
auto furthestFromPlane = XMVectorSelect(max, min, lt);
if (XMVectorGetX(XMPlaneDotCoord(XMLoadFloat4(&planes[p]), furthestFromPlane)) < 0.0f)
{
return false;
}
}
return true;
}
const XMFLOAT4& Frustum::getNearPlane() const { return planes[0]; }
const XMFLOAT4& Frustum::getFarPlane() const { return planes[1]; }
WickedEngine/wiIntersect.h
+1
View File
@@ -123,6 +123,7 @@ public:
BOX_FRUSTUM_INSIDE,
};
BoxFrustumIntersect CheckBox(const AABB& box) const;
bool CheckBoxFast(const AABB& box) const;
const XMFLOAT4& getNearPlane() const;
const XMFLOAT4& getFarPlane() const;
WickedEngine/wiRenderer.cpp
+11 -11
View File
@@ -3230,7 +3230,7 @@ void RenderMeshes(
for (uint32_t frustum_index = 0; frustum_index < frustum_count; ++frustum_index)
{
if (frusta != nullptr && !frusta[frustum_index].CheckBox(instanceAABB))
if (frusta != nullptr && !frusta[frustum_index].CheckBoxFast(instanceAABB))
{
// In case shadow cameras were provided and no intersection detected with frustum, we don't add the instance for the face:
continue;
@@ -3607,7 +3607,7 @@ void RenderImpostors(
for (size_t impostorID = 0; impostorID < scene.impostors.GetCount(); ++impostorID)
{
const ImpostorComponent& impostor = scene.impostors[impostorID];
if (camera.frustum.CheckBox(impostor.aabb))
if (camera.frustum.CheckBoxFast(impostor.aabb))
{
instanceCount += (uint32_t)impostor.instanceMatrices.size();
}
@@ -3629,7 +3629,7 @@ void RenderImpostors(
for (size_t impostorID = 0; impostorID < scene.impostors.GetCount(); ++impostorID)
{
const ImpostorComponent& impostor = scene.impostors[impostorID];
if (!camera.frustum.CheckBox(impostor.aabb))
if (!camera.frustum.CheckBoxFast(impostor.aabb))
{
continue;
}
@@ -3898,7 +3898,7 @@ void UpdatePerFrameData(float dt, uint32_t layerMask)
group_count = 0; // first thread initializes local counter
}
if (culling.frustum.CheckBox(aabb))
if (culling.frustum.CheckBoxFast(aabb))
{
// Local stream compaction:
group_list[group_count++] = args.jobIndex;
@@ -3963,7 +3963,7 @@ void UpdatePerFrameData(float dt, uint32_t layerMask)
group_count = 0; // first thread initializes local counter
}
if (culling.frustum.CheckBox(aabb))
if (culling.frustum.CheckBoxFast(aabb))
{
// Local stream compaction:
group_list[group_count++] = args.jobIndex;
@@ -3994,7 +3994,7 @@ void UpdatePerFrameData(float dt, uint32_t layerMask)
const AABB& aabb = scene.aabb_probes[i];
if (culling.frustum.CheckBox(aabb))
if (culling.frustum.CheckBoxFast(aabb))
{
culling.culledEnvProbes.push_back((uint32_t)i);
}
@@ -4022,7 +4022,7 @@ void UpdatePerFrameData(float dt, uint32_t layerMask)
group_count = 0; // first thread initializes local counter
}
if (culling.frustum.CheckBox(aabb))
if (culling.frustum.CheckBoxFast(aabb))
{
// Local stream compaction:
group_list[group_count++] = args.jobIndex;
@@ -4066,7 +4066,7 @@ void UpdatePerFrameData(float dt, uint32_t layerMask)
}
const wiHairParticle& hair = scene.hairs[i];
if (hair.meshID == INVALID_ENTITY || !culling.frustum.CheckBox(hair.aabb))
if (hair.meshID == INVALID_ENTITY || !culling.frustum.CheckBoxFast(hair.aabb))
{
continue;
}
@@ -5532,7 +5532,7 @@ void DrawShadowmaps(const CameraComponent& camera, CommandList cmd, uint32_t lay
for (size_t i = 0; i < scene.aabb_objects.GetCount(); ++i)
{
const AABB& aabb = scene.aabb_objects[i];
if (shcams[cascade].frustum.CheckBox(aabb))
if (shcams[cascade].frustum.CheckBoxFast(aabb))
{
const ObjectComponent& object = scene.objects[i];
if (object.IsRenderable() && cascade >= object.cascadeMask && object.IsCastingShadow())
@@ -5601,7 +5601,7 @@ void DrawShadowmaps(const CameraComponent& camera, CommandList cmd, uint32_t lay
for (size_t i = 0; i < scene.aabb_objects.GetCount(); ++i)
{
const AABB& aabb = scene.aabb_objects[i];
if (shcam.frustum.CheckBox(aabb))
if (shcam.frustum.CheckBoxFast(aabb))
{
const ObjectComponent& object = scene.objects[i];
if (object.IsRenderable() && object.IsCastingShadow())
@@ -7008,7 +7008,7 @@ void DrawDeferredDecals(
const DecalComponent& decal = scene.decals[decalIndex];
const AABB& aabb = scene.aabb_decals[decalIndex];
if ((decal.texture != nullptr || decal.normal != nullptr) && camera.frustum.CheckBox(aabb))
if ((decal.texture != nullptr || decal.normal != nullptr) && camera.frustum.CheckBoxFast(aabb))
{
device->BindResource(PS, decal.texture != nullptr ? decal.texture->texture : nullptr, TEXSLOT_ONDEMAND0, cmd);
WickedEngine/wiVersion.cpp
+1 -1
View File
@@ -9,7 +9,7 @@ namespace wiVersion
// minor features, major updates, breaking API changes
const int minor = 47;
// minor bug fixes, alterations, refactors, updates
const int revision = 24;
const int revision = 25;
const std::string version_string = std::to_string(major) + "." + std::to_string(minor) + "." + std::to_string(revision);