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change the morphing API so it uses only one buffer per renderable

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The current API allowed to have a buffer for each primitive in a
renderable. We instead restrict the API so that there is a single 
MorphTargetBuffer for the whole renderable, shared by all primitives.
The buffer can be shared thanks to the "offset" parameter on
setMorphTargetBufferAt().

Also
- fix FMorphTargetBuffer::updateDataAt()
- add support for the "offset" parameter of setMorphTargetBufferAt()
This commit is contained in:
Mathias Agopian
2024-05-16 14:11:07 -07:00
committed by GitHub
parent 5b80407f6c
commit 18ccf0cd8d
12 changed files with 178 additions and 85 deletions
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samples/hellomorphing.cpp
+9 -16
View File
@@ -54,7 +54,6 @@ struct App {
Skybox* skybox;
Entity renderable;
MorphTargetBuffer *mt1;
MorphTargetBuffer *mt2;
};
struct Vertex {
@@ -174,12 +173,7 @@ int main(int argc, char** argv) {
.build(*engine);
app.mt1 = MorphTargetBuffer::Builder()
.vertexCount(9)
.count(3)
.build(*engine);
app.mt2 = MorphTargetBuffer::Builder()
.vertexCount(9)
.vertexCount(9 * 2)
.count(3)
.build(*engine);
@@ -190,12 +184,12 @@ int main(int argc, char** argv) {
app.mt1->setTangentsAt(*engine,1, targets_tan+3, 3, 0);
app.mt1->setTangentsAt(*engine,2, targets_tan+6, 3, 0);
app.mt2->setPositionsAt(*engine,0, targets_pos2, 3, 0);
app.mt2->setPositionsAt(*engine,1, targets_pos2+3, 3, 0);
app.mt2->setPositionsAt(*engine,2, targets_pos2+6, 3, 0);
app.mt2->setTangentsAt(*engine,0, targets_tan, 3, 0);
app.mt2->setTangentsAt(*engine,1, targets_tan+3, 3, 0);
app.mt2->setTangentsAt(*engine,2, targets_tan+6, 3, 0);
app.mt1->setPositionsAt(*engine,0, targets_pos2, 3, 9);
app.mt1->setPositionsAt(*engine,1, targets_pos2+3, 3, 9);
app.mt1->setPositionsAt(*engine,2, targets_pos2+6, 3, 9);
app.mt1->setTangentsAt(*engine,0, targets_tan, 3, 9);
app.mt1->setTangentsAt(*engine,1, targets_tan+3, 3, 9);
app.mt1->setTangentsAt(*engine,2, targets_tan+6, 3, 9);
app.renderable = EntityManager::get().create();
@@ -209,8 +203,8 @@ int main(int argc, char** argv) {
.receiveShadows(false)
.castShadows(false)
.morphing(3)
.morphing(0,0,app.mt1)
.morphing(0,1,app.mt2)
.morphing(0,0,app.mt1, 0, app.mt1->getCount())
.morphing(0,1,app.mt1, 9, app.mt1->getCount())
.build(*engine, app.renderable);
scene->addEntity(app.renderable);
@@ -226,7 +220,6 @@ int main(int argc, char** argv) {
engine->destroy(app.vb);
engine->destroy(app.ib);
engine->destroy(app.mt1);
engine->destroy(app.mt2);
engine->destroyCameraComponent(app.camera);
utils::EntityManager::get().destroy(app.camera);
};