From b09e22b6adf0534d68f441b984d022e444a1e90d Mon Sep 17 00:00:00 2001
From: JupiterRider <60042618+JupiterRider@users.noreply.github.com>
Date: Sun, 24 Nov 2024 15:49:58 +0100
Subject: [PATCH] UpdateModelAnimationBones function added

---
 raylib/raylib_purego.go |  9 ++++++++-
 raylib/rmodels.go       | 10 +++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/raylib/raylib_purego.go b/raylib/raylib_purego.go
index f4152bf..4ec2b58 100644
--- a/raylib/raylib_purego.go
+++ b/raylib/raylib_purego.go
@@ -452,6 +452,7 @@ var setMaterialTexture func(material *Material, mapType int32, texture uintptr)
 var setModelMeshMaterial func(model *Model, meshId int32, materialId int32)
 var loadModelAnimations func(fileName string, animCount *int32) *ModelAnimation
 var updateModelAnimation func(model uintptr, anim uintptr, frame int32)
+var updateModelAnimationBones func(model uintptr, anim uintptr, frame int32)
 var unloadModelAnimation func(anim uintptr)
 var unloadModelAnimations func(animations *ModelAnimation, animCount int32)
 var isModelAnimationValid func(model uintptr, anim uintptr) bool
@@ -967,6 +968,7 @@ func init() {
 	purego.RegisterLibFunc(&setModelMeshMaterial, raylibDll, "SetModelMeshMaterial")
 	purego.RegisterLibFunc(&loadModelAnimations, raylibDll, "LoadModelAnimations")
 	purego.RegisterLibFunc(&updateModelAnimation, raylibDll, "UpdateModelAnimation")
+	purego.RegisterLibFunc(&updateModelAnimationBones, raylibDll, "UpdateModelAnimationBones")
 	purego.RegisterLibFunc(&unloadModelAnimation, raylibDll, "UnloadModelAnimation")
 	purego.RegisterLibFunc(&unloadModelAnimations, raylibDll, "UnloadModelAnimations")
 	purego.RegisterLibFunc(&isModelAnimationValid, raylibDll, "IsModelAnimationValid")
@@ -3481,11 +3483,16 @@ func LoadModelAnimations(fileName string) []ModelAnimation {
 	return unsafe.Slice(ret, animCount)
 }
 
-// UpdateModelAnimation - Update model animation pose
+// UpdateModelAnimation - Update model animation pose (CPU)
 func UpdateModelAnimation(model Model, anim ModelAnimation, frame int32) {
 	updateModelAnimation(uintptr(unsafe.Pointer(&model)), uintptr(unsafe.Pointer(&anim)), frame)
 }
 
+// UpdateModelAnimationBones - Update model animation mesh bone matrices (GPU skinning)
+func UpdateModelAnimationBones(model Model, anim ModelAnimation, frame int32) {
+	updateModelAnimationBones(uintptr(unsafe.Pointer(&model)), uintptr(unsafe.Pointer(&anim)), frame)
+}
+
 // UnloadModelAnimation - Unload animation data
 func UnloadModelAnimation(anim ModelAnimation) {
 	unloadModelAnimation(uintptr(unsafe.Pointer(&anim)))
diff --git a/raylib/rmodels.go b/raylib/rmodels.go
index 60976ae..fc58860 100644
--- a/raylib/rmodels.go
+++ b/raylib/rmodels.go
@@ -605,7 +605,7 @@ func LoadModelAnimations(fileName string) []ModelAnimation {
 	return v
 }
 
-// UpdateModelAnimation - Update model animation pose
+// UpdateModelAnimation - Update model animation pose (CPU)
 func UpdateModelAnimation(model Model, anim ModelAnimation, frame int32) {
 	cmodel := model.cptr()
 	canim := anim.cptr()
@@ -613,6 +613,14 @@ func UpdateModelAnimation(model Model, anim ModelAnimation, frame int32) {
 	C.UpdateModelAnimation(*cmodel, *canim, cframe)
 }
 
+// UpdateModelAnimationBones - Update model animation mesh bone matrices (GPU skinning)
+func UpdateModelAnimationBones(model Model, anim ModelAnimation, frame int32) {
+	cmodel := model.cptr()
+	canim := anim.cptr()
+	cframe := (C.int)(frame)
+	C.UpdateModelAnimationBones(*cmodel, *canim, cframe)
+}
+
 // UnloadModelAnimation - Unload animation data
 func UnloadModelAnimation(anim ModelAnimation) {
 	canim := anim.cptr()