/** Builds a scaling matrix */
kmMat3* const kmMat3Scaling(kmMat3* pOut, const kmScalar x, const kmScalar y)
{
// memset(pOut->mat, 0, sizeof(float) * 9);
kmMat3Identity(pOut);
pOut->mat[0] = x;
pOut->mat[4] = y;
return pOut;
}
kmMat3* const kmMat3Translation(kmMat3* pOut, const kmScalar x, const kmScalar y)
{
// memset(pOut->mat, 0, sizeof(float) * 9);
kmMat3Identity(pOut);
pOut->mat[6] = x;
pOut->mat[7] = y;
// pOut->mat[8] = 1.0;
return pOut;
}
lite3d_scene_node *lite3d_scene_node_init(lite3d_scene_node *node)
{
SDL_assert(node);
memset(node, 0, sizeof (lite3d_scene_node));
lite3d_list_link_init(&node->nodeLink);
kmMat4Identity(&node->localView);
kmMat4Identity(&node->worldView);
kmMat3Identity(&node->normalModel);
kmQuaternionIdentity(&node->rotation);
kmVec3Fill(&node->position, 0, 0, 0);
kmVec3Fill(&node->scale, 1.0f, 1.0f, 1.0f);
node->recalc = LITE3D_TRUE;
node->invalidated = LITE3D_TRUE;
node->rotationCentered = LITE3D_TRUE;
node->isCamera = LITE3D_FALSE;
node->renderable = LITE3D_TRUE;
node->enabled = LITE3D_TRUE;
node->visible = LITE3D_TRUE;
node->frustumTest = LITE3D_TRUE;
lite3d_list_init(&node->childNodes);
return node;
}