Exemplo n.º 1
0
  /**
   * Part of the deferred lighting technique, this method applies lighting through screen-space
   * calculations to the previously flat-lit world rendering stored in the primary FBO. // TODO:
   * rename sceneOpaque* FBOs to primaryA/B
   *
   * <p>See http://en.wikipedia.org/wiki/Deferred_shading as a starting point.
   */
  public void applyLightBufferPass() {

    int texId = 0;

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindTexture();
    materials.lightBufferPass.setInt("texSceneOpaque", texId++);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindDepthTexture();
    materials.lightBufferPass.setInt("texSceneOpaqueDepth", texId++);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindNormalsTexture();
    materials.lightBufferPass.setInt("texSceneOpaqueNormals", texId++);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindLightBufferTexture();
    materials.lightBufferPass.setInt("texSceneOpaqueLightBuffer", texId, true);

    buffers.sceneOpaquePingPong.bind();
    graphicState.setRenderBufferMask(buffers.sceneOpaquePingPong, true, true, true);

    setViewportTo(buffers.sceneOpaquePingPong.dimensions());
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // TODO: verify this is necessary

    renderFullscreenQuad();

    graphicState.bindDisplay(); // TODO: verify this is necessary
    setViewportToWholeDisplay(); // TODO: verify this is necessary

    renderingProcess.swapSceneOpaqueFBOs();
    buffers.sceneOpaque.attachDepthBufferTo(buffers.sceneReflectiveRefractive);
  }
Exemplo n.º 2
0
  private void generateSkyBand(FBO skyBand) {
    materials.blur.enable();
    materials.blur.setFloat("radius", 8.0f, true);
    materials.blur.setFloat2("texelSize", 1.0f / skyBand.width(), 1.0f / skyBand.height(), true);

    if (skyBand == buffers.sceneSkyBand0) {
      buffers.sceneOpaque.bindTexture();
    } else {
      buffers.sceneSkyBand0.bindTexture();
    }

    skyBand.bind();
    graphicState.setRenderBufferMask(skyBand, true, false, false);

    setViewportTo(skyBand.dimensions());
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // TODO: verify this is necessary

    renderFullscreenQuad();

    graphicState.bindDisplay(); // TODO: verify this is necessary
    setViewportToWholeDisplay(); // TODO: verify this is necessary
  }