本文整理了Java中org.lwjglb.engine.Window.getProjectionMatrix()方法的一些代码示例，展示了Window.getProjectionMatrix()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Window.getProjectionMatrix()方法的具体详情如下：
包路径：org.lwjglb.engine.Window
类名称：Window
方法名：getProjectionMatrix

Window.getProjectionMatrix介绍

暂无

代码示例

代码示例来源：origin: lwjglgamedev/lwjglbook

public void selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public boolean selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    return selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public boolean selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    return selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public boolean selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    return selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public boolean selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    return selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public boolean selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    return selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public boolean selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    return selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public boolean selectGameItem(GameItem[] gameItems, Window window, Vector2d mousePos, Camera camera) {
    // Transform mouse coordinates into normalized spaze [-1, 1]
    int wdwWitdh = window.getWidth();
    int wdwHeight = window.getHeight();
    
    float x = (float)(2 * mousePos.x) / (float)wdwWitdh - 1.0f;
    float y = 1.0f - (float)(2 * mousePos.y) / (float)wdwHeight;
    float z = -1.0f;

    invProjectionMatrix.set(window.getProjectionMatrix());
    invProjectionMatrix.invert();
    
    tmpVec.set(x, y, z, 1.0f);
    tmpVec.mul(invProjectionMatrix);
    tmpVec.z = -1.0f;
    tmpVec.w = 0.0f;
    
    Matrix4f viewMatrix = camera.getViewMatrix();
    invViewMatrix.set(viewMatrix);
    invViewMatrix.invert();
    tmpVec.mul(invViewMatrix);
    
    mouseDir.set(tmpVec.x, tmpVec.y, tmpVec.z);

    return selectGameItem(gameItems, camera.getPosition(), mouseDir);
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void render(Window window, Camera camera, Scene scene) {
  clear();
  frustumFilter.updateFrustum(window.getProjectionMatrix(), camera.getViewMatrix());
  frustumFilter.filter(scene.getGameMeshes());
  frustumFilter.filter(scene.getGameInstancedMeshes());
  
  // Render depth map before view ports has been set up
  renderDepthMap(window, camera, scene);
  glViewport(0, 0, window.getWidth(), window.getHeight());
  // Update projection matrix once per render cycle
  window.updateProjectionMatrix();
  renderScene(window, camera, scene);
  renderSkyBox(window, camera, scene);
  renderParticles(window, camera, scene);
  //renderAxes(camera);
  renderCrossHair(window);
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void render(Window window, Camera camera, Scene scene, boolean sceneChanged) {
  clear();
  if (window.getOptions().frustumCulling) {
    frustumFilter.updateFrustum(window.getProjectionMatrix(), camera.getViewMatrix());
    frustumFilter.filter(scene.getGameMeshes());
    frustumFilter.filter(scene.getGameInstancedMeshes());
  }
  // Render depth map before view ports has been set up
  if (scene.isRenderShadows() && sceneChanged) {
    shadowRenderer.render(window, scene, camera, transformation, this);
  }
  glViewport(0, 0, window.getWidth(), window.getHeight());
  // Update projection matrix once per render cycle
  window.updateProjectionMatrix();
  renderScene(window, camera, scene);
  renderSkyBox(window, camera, scene);
  renderParticles(window, camera, scene);
  //renderAxes(camera);
  //renderCrossHair(window);
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void render(Window window, Camera camera, Scene scene) {
  clear();
  if (window.getOptions().frustumCulling) {
    frustumFilter.updateFrustum(window.getProjectionMatrix(), camera.getViewMatrix());
    frustumFilter.filter(scene.getGameMeshes());
    frustumFilter.filter(scene.getGameInstancedMeshes());
  }
  // Render depth map before view ports has been set up
  renderDepthMap(window, camera, scene);
  glViewport(0, 0, window.getWidth(), window.getHeight());
  // Update projection matrix once per render cycle
  window.updateProjectionMatrix();
  renderScene(window, camera, scene);
  renderSkyBox(window, camera, scene);
  renderParticles(window, camera, scene);
  //renderAxes(camera);
  renderCrossHair(window);
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void renderScene(Window window, Camera camera, Scene scene) {
  sceneShaderProgram.bind();
  Matrix4f projectionMatrix = window.getProjectionMatrix();
  sceneShaderProgram.setUniform("projectionMatrix", projectionMatrix);
  Matrix4f orthoProjMatrix = transformation.getOrthoProjectionMatrix();
  sceneShaderProgram.setUniform("orthoProjectionMatrix", orthoProjMatrix);
  Matrix4f lightViewMatrix = transformation.getLightViewMatrix();
  Matrix4f viewMatrix = camera.getViewMatrix();
  SceneLight sceneLight = scene.getSceneLight();
  renderLights(viewMatrix, sceneLight);
  sceneShaderProgram.setUniform("fog", scene.getFog());
  sceneShaderProgram.setUniform("texture_sampler", 0);
  sceneShaderProgram.setUniform("normalMap", 1);
  sceneShaderProgram.setUniform("shadowMap", 2);
  sceneShaderProgram.setUniform("renderShadow", scene.isRenderShadows() ? 1 : 0);
  renderNonInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  renderInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  sceneShaderProgram.unbind();
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void render(Window window, Camera camera, Scene scene, boolean sceneChanged) {
  clear();
  if (window.getOptions().frustumCulling) {
    frustumFilter.updateFrustum(window.getProjectionMatrix(), camera.getViewMatrix());
    frustumFilter.filter(scene.getGameMeshes());
    frustumFilter.filter(scene.getGameInstancedMeshes());
  }
  // Render depth map before view ports has been set up
  if (scene.isRenderShadows() && sceneChanged) {
    shadowRenderer.render(window, scene, camera, transformation, this);
  }
  glViewport(0, 0, window.getWidth(), window.getHeight());
  // Update projection matrix once per render cycle
  window.updateProjectionMatrix();
  renderScene(window, camera, scene);
  renderSkyBox(window, camera, scene);
  renderParticles(window, camera, scene);
  //renderAxes(camera);
  renderCrossHair(window);
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void renderScene(Window window, Camera camera, Scene scene) {
  sceneShaderProgram.bind();
  Matrix4f projectionMatrix = window.getProjectionMatrix();
  sceneShaderProgram.setUniform("projectionMatrix", projectionMatrix);
  Matrix4f orthoProjMatrix = transformation.getOrthoProjectionMatrix();
  sceneShaderProgram.setUniform("orthoProjectionMatrix", orthoProjMatrix);
  Matrix4f lightViewMatrix = transformation.getLightViewMatrix();
  Matrix4f viewMatrix = camera.getViewMatrix();
  SceneLight sceneLight = scene.getSceneLight();
  renderLights(viewMatrix, sceneLight);
  sceneShaderProgram.setUniform("fog", scene.getFog());
  sceneShaderProgram.setUniform("texture_sampler", 0);
  sceneShaderProgram.setUniform("normalMap", 1);
  sceneShaderProgram.setUniform("shadowMap", 2);
  sceneShaderProgram.setUniform("renderShadow", scene.isRenderShadows() ? 1 : 0);
  renderNonInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  renderInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  sceneShaderProgram.unbind();
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void renderScene(Window window, Camera camera, Scene scene) {
  sceneShaderProgram.bind();
  Matrix4f projectionMatrix = window.getProjectionMatrix();
  sceneShaderProgram.setUniform("projectionMatrix", projectionMatrix);
  Matrix4f orthoProjMatrix = transformation.getOrthoProjectionMatrix();
  sceneShaderProgram.setUniform("orthoProjectionMatrix", orthoProjMatrix);
  Matrix4f lightViewMatrix = transformation.getLightViewMatrix();
  Matrix4f viewMatrix = camera.getViewMatrix();
  SceneLight sceneLight = scene.getSceneLight();
  renderLights(viewMatrix, sceneLight);
  sceneShaderProgram.setUniform("fog", scene.getFog());
  sceneShaderProgram.setUniform("texture_sampler", 0);
  sceneShaderProgram.setUniform("normalMap", 1);
  sceneShaderProgram.setUniform("shadowMap", 2);
  sceneShaderProgram.setUniform("renderShadow", scene.isRenderShadows() ? 1 : 0);
  renderNonInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  renderInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  sceneShaderProgram.unbind();
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void renderScene(Window window, Camera camera, Scene scene) {
  sceneShaderProgram.bind();
  Matrix4f projectionMatrix = window.getProjectionMatrix();
  sceneShaderProgram.setUniform("projectionMatrix", projectionMatrix);
  Matrix4f orthoProjMatrix = transformation.getOrthoProjectionMatrix();
  sceneShaderProgram.setUniform("orthoProjectionMatrix", orthoProjMatrix);
  Matrix4f lightViewMatrix = transformation.getLightViewMatrix();
  Matrix4f viewMatrix = camera.getViewMatrix();
  SceneLight sceneLight = scene.getSceneLight();
  renderLights(viewMatrix, sceneLight);
  sceneShaderProgram.setUniform("fog", scene.getFog());
  sceneShaderProgram.setUniform("texture_sampler", 0);
  sceneShaderProgram.setUniform("normalMap", 1);
  sceneShaderProgram.setUniform("shadowMap", 2);
  sceneShaderProgram.setUniform("renderShadow", scene.isRenderShadows() ? 1 : 0);
  renderNonInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  renderInstancedMeshes(scene, sceneShaderProgram, viewMatrix, lightViewMatrix);
  sceneShaderProgram.unbind();
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public void render(Window window, Camera camera, Scene scene, boolean sceneChanged) {
  clear();
  if (window.getOptions().frustumCulling) {
    frustumFilter.updateFrustum(window.getProjectionMatrix(), camera.getViewMatrix());
    frustumFilter.filter(scene.getGameMeshes());
    frustumFilter.filter(scene.getGameInstancedMeshes());
  }
  // Render depth map before view ports has been set up
  if (scene.isRenderShadows() && sceneChanged) {
    shadowRenderer.render(window, scene, camera, transformation, this);
  }
  glViewport(0, 0, window.getWidth(), window.getHeight());
  // Update projection matrix once per render cycle
  window.updateProjectionMatrix();
  renderScene(window, camera, scene);
  renderSkyBox(window, camera, scene);
  renderParticles(window, camera, scene);
  //renderAxes(camera);
  renderCrossHair(window);
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private void renderParticles(Window window, Camera camera, Scene scene) {
  particlesShaderProgram.bind();
  particlesShaderProgram.setUniform("texture_sampler", 0);
  Matrix4f projectionMatrix = window.getProjectionMatrix();
  particlesShaderProgram.setUniform("projectionMatrix", projectionMatrix);
  Matrix4f viewMatrix = camera.getViewMatrix();
  IParticleEmitter[] emitters = scene.getParticleEmitters();
  int numEmitters = emitters != null ? emitters.length : 0;
  glDepthMask(false);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE);
  for (int i = 0; i < numEmitters; i++) {
    IParticleEmitter emitter = emitters[i];
    InstancedMesh mesh = (InstancedMesh) emitter.getBaseParticle().getMesh();
    Texture text = mesh.getMaterial().getTexture();
    particlesShaderProgram.setUniform("numCols", text.getNumCols());
    particlesShaderProgram.setUniform("numRows", text.getNumRows());
    mesh.renderListInstanced(emitter.getParticles(), true, transformation, viewMatrix, null);
  }
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  glDepthMask(true);
  particlesShaderProgram.unbind();
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private void renderParticles(Window window, Camera camera, Scene scene) {
  particlesShaderProgram.bind();
  particlesShaderProgram.setUniform("texture_sampler", 0);
  Matrix4f projectionMatrix = window.getProjectionMatrix();
  particlesShaderProgram.setUniform("projectionMatrix", projectionMatrix);
  Matrix4f viewMatrix = camera.getViewMatrix();
  IParticleEmitter[] emitters = scene.getParticleEmitters();
  int numEmitters = emitters != null ? emitters.length : 0;
  glDepthMask(false);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE);
  for (int i = 0; i < numEmitters; i++) {
    IParticleEmitter emitter = emitters[i];
    InstancedMesh mesh = (InstancedMesh) emitter.getBaseParticle().getMesh();
    Texture text = mesh.getMaterial().getTexture();
    particlesShaderProgram.setUniform("numCols", text.getNumCols());
    particlesShaderProgram.setUniform("numRows", text.getNumRows());
    mesh.renderListInstanced(emitter.getParticles(), true, transformation, viewMatrix, null);
  }
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  glDepthMask(true);
  particlesShaderProgram.unbind();
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private void renderParticles(Window window, Camera camera, Scene scene) {
  particlesShaderProgram.bind();
  particlesShaderProgram.setUniform("texture_sampler", 0);
  Matrix4f projectionMatrix = window.getProjectionMatrix();
  particlesShaderProgram.setUniform("projectionMatrix", projectionMatrix);
  Matrix4f viewMatrix = camera.getViewMatrix();
  IParticleEmitter[] emitters = scene.getParticleEmitters();
  int numEmitters = emitters != null ? emitters.length : 0;
  glDepthMask(false);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE);
  for (int i = 0; i < numEmitters; i++) {
    IParticleEmitter emitter = emitters[i];
    InstancedMesh mesh = (InstancedMesh) emitter.getBaseParticle().getMesh();
    Texture text = mesh.getMaterial().getTexture();
    particlesShaderProgram.setUniform("numCols", text.getNumCols());
    particlesShaderProgram.setUniform("numRows", text.getNumRows());
    mesh.renderListInstanced(emitter.getParticles(), true, transformation, viewMatrix, null);
  }
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  glDepthMask(true);
  particlesShaderProgram.unbind();
}