private Matrix4 createLightViewProjectionMatrix(DirectionalLight light) {
      //
      // -- Get the frustum corners in world space
      //
      mCamera.getFrustumCorners(mFrustumCorners, true);
      //
      // -- Get the frustum centroid
      //
      mFrustumCentroid.setAll(0, 0, 0);
      for (int i = 0; i < 8; i++) mFrustumCentroid.add(mFrustumCorners[i]);
      mFrustumCentroid.divide(8.0);

      //
      // --
      //

      BoundingBox lightBox = new BoundingBox(mFrustumCorners);
      double distance = mFrustumCentroid.distanceTo(lightBox.getMin());
      Vector3 lightDirection = light.getDirectionVector().clone();
      lightDirection.normalize();
      Vector3 lightPosition =
          Vector3.subtractAndCreate(
              mFrustumCentroid, Vector3.multiplyAndCreate(lightDirection, distance));

      //
      // --
      //

      mLightViewMatrix.setToLookAt(lightPosition, mFrustumCentroid, Vector3.Y);

      for (int i = 0; i < 8; i++) mFrustumCorners[i].multiply(mLightViewMatrix);

      BoundingBox b = new BoundingBox(mFrustumCorners);
      mLightProjectionMatrix.setToOrthographic(
          b.getMin().x, b.getMax().x, b.getMin().y, b.getMax().y, -b.getMax().z, -b.getMin().z);

      mLightModelViewProjectionMatrix.setAll(mLightProjectionMatrix);
      mLightModelViewProjectionMatrix.multiply(mLightViewMatrix);
      return mLightModelViewProjectionMatrix;
    }
Beispiel #2
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  public void render(
      long ellapsedTime, double deltaTime, RenderTarget renderTarget, Material sceneMaterial) {
    // Scene color-picking requests are relative to the prior frame's render
    // state, so handle any pending request before applying this frame's updates...
    if (mPickerInfo != null) {
      doColorPicking(mPickerInfo);
      // One-shot, once per frame at most
      mPickerInfo = null;
    }

    performFrameTasks(); // Handle the task queue

    synchronized (mFrameTaskQueue) {
      if (mLightsDirty) {
        updateMaterialsWithLights();
        mLightsDirty = false;
      }
    }

    synchronized (mNextSkyboxLock) {
      // Check if we need to switch the skybox, and if so, do it.
      if (mNextSkybox != null) {
        mSkybox = mNextSkybox;
        mNextSkybox = null;
      }
    }
    synchronized (mNextCameraLock) {
      // Check if we need to switch the camera, and if so, do it.
      if (mNextCamera != null) {
        mCamera = mNextCamera;
        mCamera.setProjectionMatrix(mRenderer.getViewportWidth(), mRenderer.getViewportHeight());
        mNextCamera = null;
      }
    }

    int clearMask = mAlwaysClearColorBuffer ? GLES20.GL_COLOR_BUFFER_BIT : 0;

    if (renderTarget != null) {
      renderTarget.bind();
      GLES20.glClearColor(mRed, mGreen, mBlue, mAlpha);
    } else {
      //			GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
      GLES20.glClearColor(mRed, mGreen, mBlue, mAlpha);
    }

    if (mEnableDepthBuffer) {
      clearMask |= GLES20.GL_DEPTH_BUFFER_BIT;
      GLES20.glEnable(GLES20.GL_DEPTH_TEST);
      GLES20.glDepthFunc(GLES20.GL_LESS);
      GLES20.glDepthMask(true);
      GLES20.glClearDepthf(1.0f);
    }
    if (mAntiAliasingConfig.equals(ISurface.ANTI_ALIASING_CONFIG.COVERAGE)) {
      clearMask |= GL_COVERAGE_BUFFER_BIT_NV;
    }

    GLES20.glClear(clearMask);

    // Execute onPreFrame callbacks
    // We explicitly break out the steps here to help the compiler optimize
    final int preCount = mPreCallbacks.size();
    if (preCount > 0) {
      synchronized (mPreCallbacks) {
        for (int i = 0; i < preCount; ++i) {
          mPreCallbacks.get(i).onPreFrame(ellapsedTime, deltaTime);
        }
      }
    }

    // Update all registered animations
    synchronized (mAnimations) {
      for (int i = 0, j = mAnimations.size(); i < j; ++i) {
        Animation anim = mAnimations.get(i);
        if (anim.isPlaying()) anim.update(deltaTime);
      }
    }

    // We are beginning the render process so we need to update the camera matrix before fetching
    // its values
    mCamera.onRecalculateModelMatrix(null);

    // Get the view and projection matrices in advance
    mVMatrix = mCamera.getViewMatrix();
    mPMatrix = mCamera.getProjectionMatrix();
    // Pre-multiply View and Projection matrices once for speed
    mVPMatrix.setAll(mPMatrix).multiply(mVMatrix);
    mInvVPMatrix.setAll(mVPMatrix).inverse();
    mCamera.updateFrustum(mInvVPMatrix); // Update frustum plane

    // Update the model matrices of all the lights
    synchronized (mLights) {
      final int numLights = mLights.size();
      for (int i = 0; i < numLights; ++i) {
        mLights.get(i).onRecalculateModelMatrix(null);
      }
    }

    // Execute onPreDraw callbacks
    // We explicitly break out the steps here to help the compiler optimize
    final int preDrawCount = mPreDrawCallbacks.size();
    if (preDrawCount > 0) {
      synchronized (mPreDrawCallbacks) {
        for (int i = 0; i < preDrawCount; ++i) {
          mPreDrawCallbacks.get(i).onPreDraw(ellapsedTime, deltaTime);
        }
      }
    }

    if (mSkybox != null) {
      GLES20.glDisable(GLES20.GL_DEPTH_TEST);
      GLES20.glDepthMask(false);

      mSkybox.setPosition(mCamera.getX(), mCamera.getY(), mCamera.getZ());
      // Model matrix updates are deferred to the render method due to parent matrix needs
      // Render the skybox
      mSkybox.render(mCamera, mVPMatrix, mPMatrix, mVMatrix, null);

      if (mEnableDepthBuffer) {
        GLES20.glEnable(GLES20.GL_DEPTH_TEST);
        GLES20.glDepthMask(true);
      }
    }

    if (sceneMaterial != null) {
      sceneMaterial.useProgram();
      sceneMaterial.bindTextures();
    }

    synchronized (mChildren) {
      for (int i = 0, j = mChildren.size(); i < j; ++i) {
        // Model matrix updates are deferred to the render method due to parent matrix needs
        mChildren.get(i).render(mCamera, mVPMatrix, mPMatrix, mVMatrix, sceneMaterial);
      }
    }

    if (mDisplaySceneGraph) {
      mSceneGraph.displayGraph(mCamera, mVPMatrix, mPMatrix, mVMatrix);
    }

    if (sceneMaterial != null) {
      sceneMaterial.unbindTextures();
    }

    synchronized (mPlugins) {
      for (int i = 0, j = mPlugins.size(); i < j; i++) mPlugins.get(i).render();
    }

    if (renderTarget != null) {
      renderTarget.unbind();
    }

    // Execute onPostFrame callbacks
    // We explicitly break out the steps here to help the compiler optimize
    final int postCount = mPostCallbacks.size();
    if (postCount > 0) {
      synchronized (mPostCallbacks) {
        for (int i = 0; i < postCount; ++i) {
          mPostCallbacks.get(i).onPostFrame(ellapsedTime, deltaTime);
        }
      }
    }
  }
Beispiel #3
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 /**
  * Constructs a new {@link Matrix4} based on the given matrix.
  *
  * @param matrix {@link Matrix4} The matrix to clone.
  */
 public Matrix4(@NonNull Matrix4 matrix) {
   setAll(matrix);
 }
Beispiel #4
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 /**
  * Constructs a {@link Matrix4} based on the rotation represented by the provided {@link
  * Quaternion}.
  *
  * @param quat {@link Quaternion} The {@link Quaternion} to be copied.
  */
 public Matrix4(@NonNull Quaternion quat) {
   setAll(quat);
 }
Beispiel #5
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 /**
  * Constructs a new {@link Matrix4} based on the provided double array. The array length must be
  * greater than or equal to 16 and the array will be copied from the 0 index.
  *
  * @param matrix double array containing the values for the matrix in column major order. The
  *     array is not modified or referenced after this constructor completes.
  */
 public Matrix4(@NonNull @Size(min = 16) double[] matrix) {
   setAll(matrix);
 }
 /**
  * Calculates the model matrix for this {@link ATransformable3D} object.
  *
  * @param parentMatrix {@link Matrix4} The parent matrix, if any, to apply to this object.
  */
 public void calculateModelMatrix(final Matrix4 parentMatrix) {
   mMMatrix.setAll(mPosition, mScale, mOrientation);
   if (parentMatrix != null) {
     mMMatrix.leftMultiply(parentMatrix);
   }
 }