void Camera::update_following(double dt) {
ActorPtr following_actor = following_actor_.lock();
if(following_actor) {
kmQuaternion actor_rotation = following_actor->absolute_rotation();
kmVec3 actor_position = following_actor->absolute_position();
kmVec3 actor_forward;
kmQuaternionGetForwardVec3RH(&actor_forward, &actor_rotation);
kmQuaternion initial_rotation;
kmQuaternionAssign(&initial_rotation, &rotation_);
float t = ((following_lag_ == 0) ? 1.0 : dt * (1.0 / following_lag_));
kmQuaternionSlerp(&rotation_, &initial_rotation, &actor_rotation, t);
kmVec3 rotated_offset;
kmQuaternionMultiplyVec3(&rotated_offset, &rotation_, &following_offset_);
//kmMat4RotationQuaternion(&new_rotation_matrix, &rotation_);
//kmVec3MultiplyMat4(&rotated_offset, &following_offset_, &new_rotation_matrix);
kmVec3Add(&position_, &rotated_offset, &actor_position);
update_from_parent();
} else {
//The actor was destroyed, so reset
following_actor_ = ActorRef();
}
}
kmBool kmRay3IntersectPlane(kmVec3* pOut, const kmRay3* ray, const kmPlane* plane) {
//t = - (A*org.x + B*org.y + C*org.z + D) / (A*dir.x + B*dir.y + C*dir.z )
kmScalar d = (plane->a * ray->dir.x +
plane->b * ray->dir.y +
plane->c * ray->dir.z);
if(d == 0)
{
return KM_FALSE;
}
kmScalar t = -(plane->a * ray->start.x +
plane->b * ray->start.y +
plane->c * ray->start.z + plane->d) / d;
if(t < 0)
{
return KM_FALSE;
}
kmVec3 scaled_dir;
kmVec3Scale(&scaled_dir, &ray->dir, t);
kmVec3Add(pOut, &ray->start, &scaled_dir);
return KM_TRUE;
}
kmBool kmRay3IntersectAABB3(const kmRay3* ray, const kmAABB3* aabb, kmVec3* intersection, kmScalar* distance) {
//http://gamedev.stackexchange.com/a/18459/15125
kmVec3 rdir, dirfrac, diff;
kmVec3Normalize(&rdir, &ray->dir);
kmVec3Fill(&dirfrac, 1.0 / rdir.x, 1.0 / rdir.y, 1.0 / rdir.z);
kmScalar t1 = (aabb->min.x - ray->start.x) * dirfrac.x;
kmScalar t2 = (aabb->max.x - ray->start.x) * dirfrac.x;
kmScalar t3 = (aabb->min.y - ray->start.y) * dirfrac.y;
kmScalar t4 = (aabb->max.y - ray->start.y) * dirfrac.y;
kmScalar t5 = (aabb->min.z - ray->start.z) * dirfrac.z;
kmScalar t6 = (aabb->max.z - ray->start.z) * dirfrac.z;
kmScalar tmin = kmMax(kmMax(kmMin(t1, t2), kmMin(t3, t4)), kmMin(t5, t6));
kmScalar tmax = kmMin(kmMin(kmMax(t1, t2), kmMax(t3, t4)), kmMax(t5, t6));
// if tmax < 0, ray (line) is intersecting AABB, but whole AABB is behind us
if(tmax < 0) {
return KM_FALSE;
}
// if tmin > tmax, ray doesn't intersect AABB
if (tmin > tmax) {
return KM_FALSE;
}
if(distance) *distance = tmin;
if(intersection) {
kmVec3Scale(&diff, &rdir, tmin);
kmVec3Add(intersection, &ray->start, &diff);
}
return KM_TRUE;
}
lite3d_scene_node *lite3d_scene_node_move(lite3d_scene_node *node, const kmVec3 *position)
{
SDL_assert(node && position);
kmVec3Add(&node->position, &node->position, position);
node->recalc = LITE3D_TRUE;
return node;
}
kmVec3 AABB::getCenter() const
{
kmVec3 result;
kmVec3Add(&result, &_min, &_max);
kmVec3Scale(&result, &result, 0.5f);
return result;
}
kmVec3* kmVec3ProjectOnToPlane(kmVec3* pOut, const kmVec3* point, const struct kmPlane* plane) {
kmVec3 N;
kmVec3Fill(&N, plane->a, plane->b, plane->c);
kmVec3Normalize(&N, &N);
kmScalar distance = -kmVec3Dot(&N, point);
kmVec3Scale(&N, &N, distance);
kmVec3Add(pOut, point, &N);
return pOut;
}
kmVec3* kmQuaternionMultiplyVec3(kmVec3* pOut, const kmQuaternion* q, const kmVec3* v) {
kmVec3 uv, uuv, qvec;
qvec.x = q->x;
qvec.y = q->y;
qvec.z = q->z;
kmVec3Cross(&uv, &qvec, v);
kmVec3Cross(&uuv, &qvec, &uv);
kmVec3Scale(&uv, &uv, (2.0f * q->w));
kmVec3Scale(&uuv, &uuv, 2.0f);
kmVec3Add(pOut, v, &uv);
kmVec3Add(pOut, pOut, &uuv);
return pOut;
}
/* Move camera */
void dlMoveCamera( dlCamera *object, kmVec3 *move )
{
CALL("%p, vec3[%f, %f, %f]", object,
move->x, move->y, move->z);
if(!object)
return;
kmVec3Add( &object->translation, &object->translation, move );
object->transform_changed = 1;
}
void BoundingBox::getCenter(kmVec3* dst) const
{
GP_ASSERT(dst);
kmVec3Subtract(dst, &max, &min);
//dst->set(min, max);
//dst->scale(0.5f);
kmVec3Scale(dst, dst, 0.5f);
//dst->add(min);
kmVec3Add(dst, dst, &min);
return;
}
/* move sceneobject */
void dlMoveObject( dlObject *object, kmVec3 *move )
{
unsigned int i;
CALL("%p, vec3[%f, %f, %f]", object,
move->x, move->y, move->z);
kmVec3Add( &object->translation, &object->translation, move );
object->transform_changed = 1;
i = 0;
for(; i != object->num_childs; ++i)
dlMoveObject( object->child[i], move );
}
kmBool kmRay3IntersectTriangle(const kmRay3* ray, const kmVec3* v0, const kmVec3* v1, const kmVec3* v2, kmVec3* intersection, kmVec3* normal, kmScalar* distance) {
kmVec3 e1, e2, pvec, tvec, qvec, dir;
kmScalar det, inv_det, u, v, t;
kmVec3Normalize(&dir, &ray->dir);
kmVec3Subtract(&e1, v1, v0);
kmVec3Subtract(&e2, v2, v0);
kmVec3Cross(&pvec, &dir, &e2);
det = kmVec3Dot(&e1, &pvec);
/* Backfacing, discard. */
if(det < kmEpsilon) {
return KM_FALSE;
}
if(kmAlmostEqual(det, 0)) {
return KM_FALSE;
}
inv_det = 1.0 / det;
kmVec3Subtract(&tvec, &ray->start, v0);
u = inv_det * kmVec3Dot(&tvec, &pvec);
if(u < 0.0 || u > 1.0) {
return KM_FALSE;
}
kmVec3Cross(&qvec, &tvec, &e1);
v = inv_det * kmVec3Dot(&dir, &qvec);
if(v < 0.0 || (u + v) > 1.0) {
return KM_FALSE;
}
t = inv_det * kmVec3Dot(&e2, &qvec);
if(t > kmEpsilon && (t*t) <= kmVec3LengthSq(&ray->dir)) {
kmVec3 scaled;
*distance = t; /* Distance */
kmVec3Cross(normal, &e1, &e2); /* Surface normal of collision */
kmVec3Normalize(normal, normal);
kmVec3Normalize(&scaled, &dir);
kmVec3Scale(&scaled, &scaled, *distance);
kmVec3Add(intersection, &ray->start, &scaled);
return KM_TRUE;
}
return KM_FALSE;
}
void lite3d_bounding_vol_setup(struct lite3d_bounding_vol *vol,
const kmVec3 *vmin, const kmVec3 *vmax)
{
float l, w, h;
kmVec3 center;
SDL_assert(vmin);
SDL_assert(vmax);
SDL_assert(vol);
l = vmax->x - vmin->x;
w = vmax->y - vmin->y;
h = vmax->z - vmin->z;
vol->box[0] = *vmin;
vol->box[1].x = vmin->x;
vol->box[1].y = vmin->y;
vol->box[1].z = vmin->z + h;
vol->box[2].x = vmin->x;
vol->box[2].y = vmin->y + w;
vol->box[2].z = vmin->z + h;
vol->box[3].x = vmin->x;
vol->box[3].y = vmin->y + w;
vol->box[3].z = vmin->z;
vol->box[4].x = vmin->x + l;
vol->box[4].y = vmin->y;
vol->box[4].z = vmin->z;
vol->box[5].x = vmin->x + l;
vol->box[5].y = vmin->y;
vol->box[5].z = vmin->z + h;
vol->box[6].x = vmin->x + l;
vol->box[6].y = vmin->y + w;
vol->box[6].z = vmin->z;
vol->box[7] = *vmax;
/* calc center vector */
center.x = l / 2;
center.y = w / 2;
center.z = h / 2;
kmVec3Add(&vol->sphereCenter, vmin, ¢er);
vol->radius = kmVec3Length(¢er);
}
/* \brief cast a ray from camera at specified relative coordinate */
GLHCKAPI kmRay3* glhckCameraCastRayFromPoint(glhckCamera *object, kmRay3 *pOut, const kmVec2 *point)
{
CALL(2, "%p, "VEC2S, pOut, VEC2(point));
glhckFrustum *frustum = glhckCameraGetFrustum(object);
kmVec3 nu, nv, fu, fv;
kmVec3Subtract(&nu,
&frustum->corners[GLHCK_FRUSTUM_CORNER_NEAR_BOTTOM_RIGHT],
&frustum->corners[GLHCK_FRUSTUM_CORNER_NEAR_BOTTOM_LEFT]);
kmVec3Subtract(&nv,
&frustum->corners[GLHCK_FRUSTUM_CORNER_NEAR_TOP_LEFT],
&frustum->corners[GLHCK_FRUSTUM_CORNER_NEAR_BOTTOM_LEFT]);
kmVec3Subtract(&fu,
&frustum->corners[GLHCK_FRUSTUM_CORNER_FAR_BOTTOM_RIGHT],
&frustum->corners[GLHCK_FRUSTUM_CORNER_FAR_BOTTOM_LEFT]);
kmVec3Subtract(&fv,
&frustum->corners[GLHCK_FRUSTUM_CORNER_FAR_TOP_LEFT],
&frustum->corners[GLHCK_FRUSTUM_CORNER_FAR_BOTTOM_LEFT]);
kmVec3Scale(&nu, &nu, point->x);
kmVec3Scale(&nv, &nv, point->y);
kmVec3Scale(&fu, &fu, point->x);
kmVec3Scale(&fv, &fv, point->y);
pOut->start = frustum->corners[GLHCK_FRUSTUM_CORNER_NEAR_BOTTOM_LEFT];
pOut->dir = frustum->corners[GLHCK_FRUSTUM_CORNER_FAR_BOTTOM_LEFT];
kmVec3Add(&pOut->start, &pOut->start, &nu);
kmVec3Add(&pOut->start, &pOut->start, &nv);
kmVec3Add(&pOut->dir, &pOut->dir, &fu);
kmVec3Add(&pOut->dir, &pOut->dir, &fv);
kmVec3Subtract(&pOut->dir, &pOut->dir, &pOut->start);
RET(2, "%p", pOut);
return pOut;
}
kmVec3* kmRay3IntersectPlane(kmVec3* pOut, const kmRay3* ray, const kmPlane* plane) {
//t = - (A*org.x + B*org.y + C*org.z + D) / (A*dir.x + B*dir.y + C*dir.z )
double t = -(plane->a * ray->start.x +
plane->b * ray->start.y +
plane->c * ray->start.z + plane->d) / (
plane->a * ray->dir.x +
plane->b * ray->dir.y +
plane->c * ray->dir.z);
kmVec3 scaled_dir;
kmVec3Scale(&scaled_dir, &ray->dir, t);
kmVec3Add(pOut, &ray->start, &scaled_dir);
return pOut;
}
void Mesh::enable_debug(bool value) {
if(value) {
if(normal_debug_mesh_) return;
//This maintains a lock on the material
MaterialID mid = resource_manager().new_material();
resource_manager().window->loader_for(
"material_loader",
Material::BuiltIns::DIFFUSE_ONLY
)->into(resource_manager().material(mid));
normal_debug_mesh_ = new_submesh_with_material("__debug__", mid, MESH_ARRANGEMENT_LINES, VERTEX_SHARING_MODE_INDEPENDENT);
//Go through the submeshes, and for each index draw a normal line
each([=](const std::string& name, SubMesh* mesh) {
for(uint16_t idx: mesh->index_data->all()) {
Vec3 pos1 = mesh->vertex_data->position_at<Vec3>(idx);
Vec3 n;
mesh->vertex_data->normal_at(idx, n);
kmVec3Scale(&n, &n, 10.0);
kmVec3 pos2;
kmVec3Add(&pos2, &pos1, &n);
normal_debug_mesh_->vertex_data->position(pos1);
normal_debug_mesh_->vertex_data->diffuse(smlt::Colour::RED);
int16_t next_index = normal_debug_mesh_->vertex_data->move_next();
normal_debug_mesh_->index_data->index(next_index - 1);
normal_debug_mesh_->vertex_data->position(pos2);
normal_debug_mesh_->vertex_data->diffuse(smlt::Colour::RED);
next_index = normal_debug_mesh_->vertex_data->move_next();
normal_debug_mesh_->index_data->index(next_index - 1);
}
});
normal_debug_mesh_->vertex_data->done();
normal_debug_mesh_->index_data->done();
} else {
if(normal_debug_mesh_) {
delete_submesh(normal_debug_mesh_->name());
normal_debug_mesh_ = nullptr;
}
}
}
/* Rotate camera */
void dlRotateCamera( dlCamera *object, kmVec3 *rotation )
{
kmVec3 rotToDir, forwards;
CALL("%p, vec3[%f, %f, %f]", object,
rotation->x, rotation->y, rotation->z);
forwards.x = 0;
forwards.y = 0;
forwards.z = 1;
if(!object)
return;
object->rotation = *rotation;
/* update target */
kmVec3RotationToDirection( &rotToDir, &object->rotation, &forwards );
kmVec3Add( &object->target, &object->translation, &rotToDir );
object->transform_changed = 1;
}
kmVec3* kmAABB3Centre(const kmAABB3* aabb, kmVec3* pOut) {
kmVec3Add(pOut, &aabb->min, &aabb->max);
kmVec3Scale(pOut, pOut, 0.5);
return pOut;
}
void Frustum::setupProjectionPerspective(const ViewTransform& view, float left, float right, float top, float bottom, float nearPlane, float farPlane)
{
kmVec3 cc = view.getPosition();
kmVec3 cDir = view.getDirection();
kmVec3 cRight = view.getRight();
kmVec3 cUp = view.getUp();
kmVec3Normalize(&cDir, &cDir);
kmVec3Normalize(&cRight, &cRight);
kmVec3Normalize(&cUp, &cUp);
kmVec3 nearCenter;
kmVec3 farCenter;
kmVec3Scale(&nearCenter, &cDir, nearPlane);
kmVec3Add(&nearCenter, &nearCenter, &cc);
kmVec3Scale(&farCenter, &cDir, farPlane);
kmVec3Add(&farCenter, &farCenter, &cc);
//near
{
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_NEAR], &nearCenter, &cDir);
}
//far
{
kmVec3 normal;
kmVec3Scale(&normal, &cDir, -1);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_FAR], &farCenter, &normal);
}
//left
{
kmVec3 point;
kmVec3Scale(&point, &cRight, left);
kmVec3Add(&point, &point, &nearCenter);
kmVec3 normal;
kmVec3Subtract(&normal, &point, &cc);
kmVec3Cross(&normal, &normal, &cUp);
kmVec3Normalize(&normal, &normal);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_LEFT], &point, &normal);
}
//right
{
kmVec3 point;
kmVec3Scale(&point, &cRight, right);
kmVec3Add(&point, &point, &nearCenter);
kmVec3 normal;
kmVec3Subtract(&normal, &point, &cc);
kmVec3Cross(&normal, &cUp, &normal);
kmVec3Normalize(&normal, &normal);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_RIGHT], &point, &normal);
}
//bottom
{
kmVec3 point;
kmVec3Scale(&point, &cUp, bottom);
kmVec3Add(&point, &point, &nearCenter);
kmVec3 normal;
kmVec3Subtract(&normal, &point, &cc);
kmVec3Cross(&normal, &cRight, &normal);
kmVec3Normalize(&normal, &normal);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_BOTTOM], &point, &normal);
}
//top
{
kmVec3 point;
kmVec3Scale(&point, &cUp, top);
kmVec3Add(&point, &point, &nearCenter);
kmVec3 normal;
kmVec3Subtract(&normal, &point, &cc);
kmVec3Cross(&normal, &normal, &cRight);
kmVec3Normalize(&normal, &normal);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_TOP], &point, &normal);
}
}
void Frustum::setupProjectionOrthogonal(const cocos2d::ViewTransform &view, float width, float height, float nearPlane, float farPlane)
{
kmVec3 cc = view.getPosition();
kmVec3 cDir = view.getDirection();
kmVec3 cRight = view.getRight();
kmVec3 cUp = view.getUp();
kmVec3Normalize(&cDir, &cDir);
kmVec3Normalize(&cRight, &cRight);
kmVec3Normalize(&cUp, &cUp);
//near
{
kmVec3 point;
kmVec3 normal;
normal = cDir;
kmVec3Scale(&point, &cDir, nearPlane);
kmVec3Add(&point, &point, &cc);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_NEAR], &point, &normal);
}
//far
{
kmVec3 point;
kmVec3 normal;
kmVec3Scale(&normal, &cDir, -1);
kmVec3Scale(&point, &cDir, farPlane);
kmVec3Add(&point, &point, &cc);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_FAR], &point, &normal);
}
//left
{
kmVec3 point;
kmVec3 normal;
normal = cRight;
kmVec3Scale(&point, &cRight, -width * 0.5);
kmVec3Add(&point, &point, &cc);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_LEFT], &point, &normal);
}
//right
{
kmVec3 point;
kmVec3 normal;
kmVec3Scale(&normal, &cRight, -1);
kmVec3Scale(&point, &cRight, width * 0.5);
kmVec3Add(&point, &point, &cc);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_RIGHT], &point, &normal);
}
//bottom
{
kmVec3 point;
kmVec3 normal;
normal = cUp;
kmVec3Scale(&point, &cUp, -height * 0.5);
kmVec3Add(&point, &point, &cc);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_BOTTOM], &point, &normal);
}
//top
{
kmVec3 point;
kmVec3 normal;
kmVec3Scale(&normal, &cUp, -1);
kmVec3Scale(&point, &cUp, height * 0.5);
kmVec3Add(&point, &point, &cc);
kmPlaneFromPointAndNormal(&_frustumPlanes[FrustumPlane::FRUSTUM_TOP], &point, &normal);
}
}
int process_inputs()
{
// Get mouse position
double xpos, ypos;
glfwGetCursorPos(mainWindow, &xpos, &ypos);
// Reset mouse position for next frame
glfwSetCursorPos(mainWindow, SCREEN_WIDTH/2, SCREEN_HEIGHT/2);
// Compute new orientation
horizontalAngle += mouseSpeed * (float)( SCREEN_WIDTH/2 - xpos );
verticalAngle += mouseSpeed * (float)( SCREEN_HEIGHT/2 - ypos );
/* If F1, reload */
if (glfwGetKey(mainWindow, GLFW_KEY_F1)) {
Engine_Reload();
}
/* If F2, reset view */
if (glfwGetKey(mainWindow, GLFW_KEY_F2)) {
printf("Camera reset.\n");
Camera_Reset();
}
/* If tab, change lookat to next mesh */
if (glfwGetKey(mainWindow, GLFW_KEY_TAB)) {
//Camera_LookAtNext();
}
/* Move closer */
//if (glfwGetKey(mainWindow, GLFW_KEY_W)) {
// ypos = 100;
//}
/* Move further */
//if (glfwGetKey(mainWindow, GLFW_KEY_S)) {
// ypos = -100;
//}
/* Move left */
//if (glfwGetKey(mainWindow, GLFW_KEY_A)) {
// xpos = 100;
//}
/* Move right */
//if (glfwGetKey(mainWindow, GLFW_KEY_D)) {
// xpos = -100;
//}
// Compute new orientation
//horizontalAngle += mouseSpeed * (float)(1024/2 - xpos );
//verticalAngle += mouseSpeed * (float)( 768/2 - ypos );
horizontalAngle += mouseSpeed * xpos;
verticalAngle += mouseSpeed * ypos;
//printf("horizontalAngle is %f, and verticalAngle is %f.\n", horizontalAngle, verticalAngle);
// Direction : Spherical coordinates to Cartesian coordinates conversion
float temp1 = cos(verticalAngle) * sin(horizontalAngle);
float temp2 = sin(verticalAngle);
float temp3 = cos(verticalAngle) * cos(horizontalAngle);
kmVec3 direction = {temp1, temp2, temp3};
// Right vector
kmVec3 right = {
sin(horizontalAngle - 3.14f/2.0f),
0,
cos(horizontalAngle - 3.14f/2.0f)
};
// Up vector
kmVec3 up = *kmVec3Cross(&up, &right, &direction );
// Move forward
if (glfwGetKey( mainWindow, GLFW_KEY_UP ) == GLFW_PRESS){
kmVec3Add(&position, &position, kmVec3Scale(&position, &direction, deltaTime * speed));
}
// Move backward
if (glfwGetKey( mainWindow, GLFW_KEY_DOWN ) == GLFW_PRESS){
kmVec3Subtract(&position, &position, kmVec3Scale(&position, &direction, deltaTime * speed));
}
// Strafe right
if (glfwGetKey( mainWindow, GLFW_KEY_RIGHT ) == GLFW_PRESS){
kmVec3Add(&position, &position, kmVec3Scale(&position, &right, deltaTime * speed));
}
// Strafe left
if (glfwGetKey( mainWindow, GLFW_KEY_LEFT ) == GLFW_PRESS){
kmVec3Subtract(&position, &position, kmVec3Scale(&position, &right, deltaTime * speed));
}
float FoV = initialFoV;
kmMat4PerspectiveProjection(&ProjectionMatrix, FoV, (16.0f / 8.0f), 0.1f, 100.0f);
// Camera matrix
//ViewMatrix = glm::lookAt(
// position, // Camera is here
// position+direction, // and looks here : at the same position, plus "direction"
// up // Head is up (set to 0,-1,0 to look upside-down)
// );
kmVec3 p_eye;
p_eye = position;
kmVec3 p_ctr;
p_ctr = *kmVec3Add(&p_ctr, &position, &direction);
kmVec3 p_up;
p_up = up;
kmMat4LookAt(&ViewMatrix, &p_eye, &p_ctr, &p_up);
kmMat4Identity(&ModelMatrix);
kmMat4 temp_mat;
kmMat4Multiply(&temp_mat, &ViewMatrix, &ModelMatrix);
kmMat4Multiply(&MVP, &ProjectionMatrix, &temp_mat );
//printf("Matrix contains:\n");
//printf("%f, %f, %f, %f\n", MVP.mat[0], MVP.mat[1], MVP.mat[2], MVP.mat[3]);
//printf("%f, %f, %f, %f\n", MVP.mat[4], MVP.mat[5], MVP.mat[6], MVP.mat[7]);
//printf("%f, %f, %f, %f\n", MVP.mat[8], MVP.mat[9], MVP.mat[10], MVP.mat[11]);
//printf("%f, %f, %f, %f\n", MVP.mat[12], MVP.mat[13], MVP.mat[14], MVP.mat[15]);
return 0;
}
void CSkin::CalcSkelAnim(const CAnimationController::BoneMatrixMap &matrices)
{
CVertexPT *vertices = new CVertexPT[m_uVertexCount];
for(size_t i = 0; i < m_uVertexCount; ++i)
{
const CVertexPTB &vertex = m_vertices[i];
CVertexPT &vertex1 = vertices[i];
if(matrices.empty())
{
vertex1.position = vertex.position;
vertex1.tex = vertex.tex;
continue;
}
kmVec3 pos;
kmVec3Fill(&pos,vertex.position.x,vertex.position.y, vertex.position.z);
kmVec3 finalpos;
kmMat4 mat, mat2, mat3, mat4;
if(vertex.bones.x >= 0)
{
auto itr = matrices.find(static_cast<ESkeletonBoneType>(vertex.bones.x));
BEATS_ASSERT(itr != matrices.end());
mat = itr->second;
kmVec3 postmp;
kmVec3Transform(&postmp,&pos,&mat);
kmVec3Scale(&postmp, &postmp, vertex.weights.x);
finalpos = postmp;
}
if(vertex.bones.y >= 0)
{
auto itr = matrices.find(static_cast<ESkeletonBoneType>(vertex.bones.y));
BEATS_ASSERT(itr != matrices.end());
mat2 = itr->second;
kmVec3 postmp;
kmVec3Transform(&postmp,&pos,&mat2);
kmVec3Scale(&postmp, &postmp, vertex.weights.y);
kmVec3Add(&finalpos,&finalpos,&postmp);
}
if(vertex.bones.z >= 0)
{
auto itr = matrices.find(static_cast<ESkeletonBoneType>(vertex.bones.z));
BEATS_ASSERT(itr != matrices.end());
mat3 = itr->second;
kmVec3 postmp;
kmVec3Transform(&postmp,&pos,&mat3);
kmVec3Scale(&postmp, &postmp, vertex.weights.z);
kmVec3Add(&finalpos,&finalpos,&postmp);
}
if(vertex.bones.w >= 0)
{
auto itr = matrices.find(static_cast<ESkeletonBoneType>(vertex.bones.w));
BEATS_ASSERT(itr != matrices.end());
mat4 = itr->second;
kmVec3 postmp;
kmVec3Transform(&postmp,&pos,&mat4);
kmVec3Scale(&postmp, &postmp, vertex.weights.w);
kmVec3Add(&finalpos,&finalpos,&postmp);
}
vertex1.position = finalpos;
vertex1.tex = vertex.tex;
}
buildVBOVertex(vertices, m_uVertexCount*sizeof(CVertexPT));
BEATS_SAFE_DELETE_ARRAY(vertices);
}
