计算机图形学（4）：OpenGL纹理
参考
运行结果：
main.cpp:
/*
Student Information
Student ID:
Student Name:
*/
#include "Dependencies/glew/glew.h"
#include "Dependencies/GLFW/glfw3.h"
#include "Dependencies/glm/glm.hpp"
#include "Dependencies/glm/gtc/matrix_transform.hpp"
#include "Shader.h"
#include "Texture.h"
#include 顶点着色器：
#version 330 core
layout (location = 0) in vec3 aPos; // 位置变量的属性位置值为 0
layout (location = 1) in vec3 aColor; // 颜色变量的属性位置值为 1
layout (location = 2) in vec2 aTexCoord;
out vec3 ourColor; // 向片段着色器输出一个颜色
out vec2 TexCoord;
uniform mat4 model;
uniform mat4 view;
uniform mat4 projection;
void main(){
gl_Position=vec4(aPos, 1.0);
ourColor = aColor ;
TexCoord = aTexCoord;
}
片元着色器：
#version 330 core
out vec4 FragColor;
in vec3 ourColor;
in vec2 TexCoord;
uniform sampler2D ourTexture;
void main()
{
FragColor = texture(ourTexture, TexCoord);
}
纹理颜色和顶点颜色混合：
FragColor = texture(ourTexture, TexCoord)* vec4(ourColor, 1.0);
效果如下：
两个纹理混合：
片段着色器修改：
uniform sampler2D texture1;
uniform sampler2D texture2;
void main()
{
FragColor = mix(texture(texture1, TexCoord), texture(texture2, TexCoord), 0.2);
}
加载两张纹理：
texture[0].setupTexture("./container.jpg");
texture[1].setupTexture("./awesomeface.png");
绑定并传输数据：
texture[0].bind(0);
shader.setInt("texture1", 0);
texture[1].bind(1);
shader.setInt("texture2", 1);
效果如下：
工程文件