oss/luanti
oss/luanti
1
0
Fork 0
mirror of https://github.com/luanti-org/luanti.git synced 2025-06-27 16:36:03 +00:00
Code Wiki Activity

Change material sharing for CMeshSceneNode

Browse source
This commit is contained in:
sfan5 2025-01-15 16:06:53 +01:00
parent e51221d247
commit 5a8720a484
4 changed files with 35 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

34
irr/src/CMeshSceneNode.cpp
View file

@ -21,7 +21,7 @@ CMeshSceneNode::CMeshSceneNode(IMesh *mesh, ISceneNode *parent, ISceneManager *m
const core::vector3df &scale) :
IMeshSceneNode(parent, mgr, id, position, rotation, scale),
Mesh(0),
PassCount(0), ReadOnlyMaterials(false)
PassCount(0), SharedMaterials(false)
{
setMesh(mesh);
}
@ -49,9 +49,9 @@ void CMeshSceneNode::OnRegisterSceneNode()
int solidCount = 0;
// count transparent and solid materials in this scene node
const u32 numMaterials = ReadOnlyMaterials ? Mesh->getMeshBufferCount() : Materials.size();
const u32 numMaterials = SharedMaterials ? Mesh->getMeshBufferCount() : Materials.size();
for (u32 i = 0; i < numMaterials; ++i) {
const video::SMaterial &material = ReadOnlyMaterials ? Mesh->getMeshBuffer(i)->getMaterial() : Materials[i];
const auto &material = SharedMaterials ? Mesh->getMeshBuffer(i)->getMaterial() : Materials[i];
if (driver->needsTransparentRenderPass(material))
++transparentCount;
@ -93,7 +93,7 @@ void CMeshSceneNode::render()
for (u32 i = 0; i < Mesh->getMeshBufferCount(); ++i) {
scene::IMeshBuffer *mb = Mesh->getMeshBuffer(i);
if (mb) {
const video::SMaterial &material = ReadOnlyMaterials ? mb->getMaterial() : Materials[i];
const auto &material = SharedMaterials ? mb->getMaterial() : Materials[i];
const bool transparent = driver->needsTransparentRenderPass(material);
@ -164,14 +164,10 @@ const core::aabbox3d<f32> &CMeshSceneNode::getBoundingBox() const
//! returns the material based on the zero based index i. To get the amount
//! of materials used by this scene node, use getMaterialCount().
//! This function is needed for inserting the node into the scene hierarchy on a
//! optimal position for minimizing renderstate changes, but can also be used
//! to directly modify the material of a scene node.
video::SMaterial &CMeshSceneNode::getMaterial(u32 i)
{
if (Mesh && ReadOnlyMaterials && i < Mesh->getMeshBufferCount()) {
ReadOnlyMaterial = Mesh->getMeshBuffer(i)->getMaterial();
return ReadOnlyMaterial;
if (Mesh && SharedMaterials && i < Mesh->getMeshBufferCount()) {
return Mesh->getMeshBuffer(i)->getMaterial();
}
if (i >= Materials.size())
@ -183,7 +179,7 @@ video::SMaterial &CMeshSceneNode::getMaterial(u32 i)
//! returns amount of materials used by this scene node.
u32 CMeshSceneNode::getMaterialCount() const
{
if (Mesh && ReadOnlyMaterials)
if (Mesh && SharedMaterials)
return Mesh->getMeshBufferCount();
return Materials.size();
@ -206,9 +202,10 @@ void CMeshSceneNode::copyMaterials()
{
Materials.clear();
if (Mesh) {
if (Mesh && !SharedMaterials) {
video::SMaterial mat;
Materials.reserve(Mesh->getMeshBufferCount());
for (u32 i = 0; i < Mesh->getMeshBufferCount(); ++i) {
IMeshBuffer *mb = Mesh->getMeshBuffer(i);
if (mb)
@ -222,15 +219,18 @@ void CMeshSceneNode::copyMaterials()
//! Sets if the scene node should not copy the materials of the mesh but use them in a read only style.
/* In this way it is possible to change the materials a mesh causing all mesh scene nodes
referencing this mesh to change too. */
void CMeshSceneNode::setReadOnlyMaterials(bool readonly)
void CMeshSceneNode::setSharedMaterials(bool shared)
{
ReadOnlyMaterials = readonly;
if (SharedMaterials != shared) {
SharedMaterials = shared;
copyMaterials();
}
}
//! Returns if the scene node should not copy the materials of the mesh but use them in a read only style
bool CMeshSceneNode::isReadOnlyMaterials() const
bool CMeshSceneNode::isSharedMaterials() const
{
return ReadOnlyMaterials;
return SharedMaterials;
}
//! Creates a clone of this scene node and its children.
@ -245,7 +245,7 @@ ISceneNode *CMeshSceneNode::clone(ISceneNode *newParent, ISceneManager *newManag
newManager, ID, RelativeTranslation, RelativeRotation, RelativeScale);
nb->cloneMembers(this, newManager);
nb->ReadOnlyMaterials = ReadOnlyMaterials;
nb->SharedMaterials = SharedMaterials;
nb->Materials = Materials;
if (newParent)