#ifdef MORPH_POSITION
// Calculate the index to retrieve the geometry from the texture.
int vertexId = gl_VertexID + blendShapeBufferOffset;
int x = vertexId % width;
int y = vertexId / width;
#ifdef MORPH_POSITION
// Calculate the index to retrieve the geometry from the texture.
int vertexId = gl_VertexID + blendShapeBufferOffset;
int x = vertexId % width;
int y = vertexId / width;