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Previously, we introduced the simple method of flattening objects to the projection plane to create shadows. However, this shadow method has its limitations (for example, the projection plane must be a plane). In opengl1 4 introduces a new method shadow map to generate shadows. The principle behind shadow mapping is simple. We first take the p ...

OpenGL itself does not have the concept of camera, but we can simulate the camera by moving all objects in the scene in the opposite direction. It feels like we are moving, not the scene is moving. 1. Establishment of camera LookAt matrix To define a camera, we need a camera's position in world space, observation direction, a right measuremen ...

preface This paper is a summary of computer graphics experiments. The experiments are written in glad and glfw. There are still many imperfections in the code. For example, the operations of drawing lines and polygons can be reasonably encapsulated to form a perfect graphics header file and even namespace, which is very helpful to the foll ...

Current learning status: day01 Hello triangle Chinese Course https://learnopengl-cn.github.io/ course http://www.opengl-tutorial.org/cn/beginners-tutorials/tutorial-1-opening-a-window/ Course source code https://github.com/opengl-tutorials/ogl/archive/master.zip Vertex Array Object: Vertex Array Object, VAO Vertex Buffer Object: Verte ...

Sky box or The sky dome provides an effective and relatively simple method to generate a convincing horizon landscape. Sky box How do I texture the horizon? The cube has six faces, and we need to texture all of them. One method is to use 6 image files and 6 texture units. Another common (and efficient) way is to use an image with a text ...

OpenGL 12 lecture code - by yjq reference material OpenGL Getting Started tutorial [infringement legislation and deletion] First lecture Draw a rectangle #include<stdio.h> #include<stdlib.h> #include <math.h> #include<glut.h> #include<glaux.h> void myDisplay(void) { glClear(GL_COLOR_BUFFER_BIT); ...

OpenGL learning reference website learnopengl.cn download GLFW . Establish the GLFW environment and ensure that it properly creates the OpenGL context and displays the window. GLFW already has a precompiled binary version and corresponding header file for Visual Studio 2013/2015... / 2019, but for completeness, we will start from compiling t ...

preface Ray tracing on GPU! About half a year ago, I was Raytrace rendering practice Simple ray tracing is discussed and implemented in. It is the simplest calculation on cpu with c + + and multithreading, but only supports simple triangles and balls as primitives Over time, it is no longer novel to manipulate these exquisit ...

fog There are many methods to simulate fog, from very simple model to complex model including light scattering effect. Even very simple methods are effective. One way is to mix the actual pixel color with another color (the color of fog is usually gray or bluish gray - also used for background color) based on the distance of the object fro ...

In the previous tutorial, we discussed the observation matrix and how to use the observation matrix to move the scene (we moved back a little). OpenGL itself does not have the concept of camera, but we can simulate the camera by moving all objects in the scene in the opposite direction to produce a feeling that we are moving, rather than the sc ...