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glTF morph animation proof of concept

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Some things to look at:
- Normal recalculation for vertex morphing
- Bounding boxes (esp. after rebasing this upon the other PR)
This commit is contained in:
Lars Mueller 2025-04-30 20:14:34 +02:00
parent 9938b02eee
commit 5a09102770
4 changed files with 174 additions and 38 deletions
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11
irr/include/SSkinMeshBuffer.h
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@ -14,6 +14,7 @@
#include <cassert>
#include <cstddef>
#include <cstring>
#include <optional>
#include <vector>
namespace irr
@ -373,10 +374,15 @@ public:
//! Call this after changing the positions of any vertex.
void boundingBoxNeedsRecalculated() { BoundingBoxNeedsRecalculated = true; }
void morph(const std::vector<f32> &weights)
void setMorph(const std::optional<std::vector<f32>> &weights)
{
resetMorph();
addMorph(weights.value_or(DefaultWeights));
}
void addMorph(const std::vector<f32> &weights)
{
assert(weights.size() == MorphTargets.size());
resetMorph();
for (size_t i = 0; i < weights.size(); ++i) {
MorphTargets[i].add(getVertexBuffer(), weights[i]);
if (!MorphTargets[i].positions.empty())
@ -401,6 +407,7 @@ public:
// TODO consolidate with Static(Pos|Normal) in weights
MorphTargetDelta MorphStaticPose;
std::vector<MorphTargetDelta> MorphTargets;
std::vector<f32> DefaultWeights;
video::SMaterial Material;
video::E_VERTEX_TYPE VertexType;