Method initDepthBuffer

core/src/processing/opengl/FrameBuffer.java:430–462

()

  protected void initDepthBuffer() {
    if (screenFb) return;

    if (width == 0 || height == 0) {
      throw new RuntimeException("PFramebuffer: size undefined.");
    }

    pg.pushFramebuffer();
    pg.setFramebuffer(this);

    pgl.bindRenderbuffer(PGL.RENDERBUFFER, glDepth);

    int glConst = PGL.DEPTH_COMPONENT16;
    if (depthBits == 16) {
      glConst = PGL.DEPTH_COMPONENT16;
    } else if (depthBits == 24) {
      glConst = PGL.DEPTH_COMPONENT24;
    } else if (depthBits == 32) {
      glConst = PGL.DEPTH_COMPONENT32;
    }

    if (multisample) {
      pgl.renderbufferStorageMultisample(PGL.RENDERBUFFER, nsamples, glConst,
                                         width, height);
    } else {
      pgl.renderbufferStorage(PGL.RENDERBUFFER, glConst, width, height);
    }

    pgl.framebufferRenderbuffer(PGL.FRAMEBUFFER, PGL.DEPTH_ATTACHMENT,
                                PGL.RENDERBUFFER, glDepth);

    pg.popFramebuffer();
  }


  protected void initStencilBuffer() {