我无法弄清楚为什么我的一些对象被渲染在彼此之上。我有深度测试。
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
我需要按最靠近相机的顺序绘制吗？（我以为 OpenGL 会为你做到这一点。）
设置代码：
private void setUpStates() {
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glLightModel(GL_LIGHT_MODEL_AMBIENT, BufferTools.asFlippedFloatBuffer(new float[]{0, 0f, 0f, 1f}));
glLight(GL_LIGHT0, GL_CONSTANT_ATTENUATION,BufferTools.asFlippedFloatBuffer(new float[]{1, 1, 1, 1}) );
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT, GL_DIFFUSE);
glMaterialf(GL_FRONT, GL_SHININESS, 50f);
camera.applyOptimalStates();
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glEnable(GL_TEXTURE_2D);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
}
渲染代码：
private void render() {
// Clear the pixels on the screen and clear the contents of the depth buffer (3D contents of the scene)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Reset any translations the camera made last frame update
glLoadIdentity();
// Apply the camera position and orientation to the scene
camera.applyTranslations();
glLight(GL_LIGHT0, GL_POSITION, BufferTools.asFlippedFloatBuffer(500f, 100f, 500f, 1));
//glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
for(ChunkBatch cb : InterthreadHolder.getInstance().getBatches()){
cb.draw(camera.x(), camera.y(), camera.z());
}
}
ChunkBatch中的draw方法：
public void draw(float x, float y, float z) {
shader.bind();
shader.setUniform("cameraPosition", x,y,z);
for(ChunkVBO c : VBOs){
glBindBuffer(GL_ARRAY_BUFFER, c.vertexid);
glVertexPointer(3, GL_FLOAT, 0, 0L);
glBindBuffer(GL_ARRAY_BUFFER, c.colorid);
glColorPointer(3, GL_FLOAT, 0, 0L);
glBindBuffer(GL_ARRAY_BUFFER, c.normalid);
glNormalPointer(GL_FLOAT, 0, 0L);
glDrawArrays(GL_QUADS, 0, c.visibleFaces * 6);
}
ShaderProgram.unbind();
}