Method attribImpl

core/src/processing/opengl/PShapeOpenGL.java:1178–1202

(String name, int kind, int type, int size)

  protected VertexAttribute attribImpl(String name, int kind, int type, int size) {
    if (4 < size) {
      PGraphics.showWarning("Vertex attributes cannot have more than 4 values");
      return null;
    }
    VertexAttribute attrib = polyAttribs.get(name);
    if (attrib == null) {
      attrib = new VertexAttribute(pg, name, kind, type, size, PGL.bufferUsageRetained);
      polyAttribs.put(name, attrib);
      inGeo.initAttrib(attrib);
    }
    if (attrib.kind != kind) {
      PGraphics.showWarning("The attribute kind cannot be changed after creation");
      return null;
    }
    if (attrib.type != type) {
      PGraphics.showWarning("The attribute type cannot be changed after creation");
      return null;
    }
    if (attrib.size != size) {
      PGraphics.showWarning("New value for vertex attribute has wrong number of values");
      return null;
    }
    return attrib;
  }


  @Override