C++ OpenGL着色器不';不编译
我的OpenGL项目中的着色器不会编译。我有Ubuntu 16.04 LTS,使用CLion。没有找到任何解决方案,这就是为什么在这里询问 这是我的错误列表:C++ OpenGL着色器不';不编译,c++,ubuntu,opengl,shader,clion,C++,Ubuntu,Opengl,Shader,Clion,我的OpenGL项目中的着色器不会编译。我有Ubuntu 16.04 LTS,使用CLion。没有找到任何解决方案,这就是为什么在这里询问 这是我的错误列表: ATTENTION: default value of option force_s3tc_enable overridden by environment. ERROR::SHADER::VERTEX::COMPILATION_FAILED 0:1(1): error: syntax error, unexpected $end ER
ATTENTION: default value of option force_s3tc_enable overridden by environment.
ERROR::SHADER::VERTEX::COMPILATION_FAILED
0:1(1): error: syntax error, unexpected $end
ERROR::SHADER::FRAGMENT::COMPILATION_FAILED
0:1(1): error: syntax error, unexpected $end
ERROR::SHADER::PROGRAM::LINKING_FAILED
error: linking with uncompiled shadererror: linking with uncompiled shader
以下是我的main.cpp代码:
#include <iostream>
// GLEW
#define GLEW_STATIC
#include <GL/glew.h>
// GLFW
#include <GLFW/glfw3.h>
// Other includes
#include "Shader.h"
// Window dimensions
const GLuint WIDTH = 800, HEIGHT = 600;
// The MAIN function, from here we start the application and run the game loop
int main( )
{
// Init GLFW
glfwInit( );
// Set all the required options for GLFW
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 3 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 3 );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );
glfwWindowHint( GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE );
glfwWindowHint( GLFW_RESIZABLE, GL_FALSE );
// Create a GLFWwindow object that we can use for GLFW's functions
GLFWwindow *window = glfwCreateWindow( WIDTH, HEIGHT, "LearnOpenGL", nullptr, nullptr );
int screenWidth, screenHeight;
glfwGetFramebufferSize( window, &screenWidth, &screenHeight );
if ( nullptr == window )
{
std::cout << "Failed to create GLFW window" << std::endl;
glfwTerminate( );
return EXIT_FAILURE;
}
glfwMakeContextCurrent( window );
// Set this to true so GLEW knows to use a modern approach to retrieving function pointers and extensions
glewExperimental = GL_TRUE;
// Initialize GLEW to setup the OpenGL Function pointers
if ( GLEW_OK != glewInit( ) )
{
std::cout << "Failed to initialize GLEW" << std::endl;
return EXIT_FAILURE;
}
// Define the viewport dimensions
glViewport( 0, 0, screenWidth, screenHeight );
// Build and compile our shader program
Shader ourShader( "core.vs", "core.frag" );
// Set up vertex data (and buffer(s)) and attribute pointers
GLfloat vertices[] =
{
// Positions // Colors
0.5f, -0.5f, 0.0f, 1.0f, 0.0f, 0.0f, // Bottom Right
-0.5f, -0.5f, 0.0f, 0.0f, 1.0f, 0.0f, // Bottom Left
0.0f, 0.5f, 0.0f, 0.0f, 0.0f, 1.0f // Top
};
GLuint VBO, VAO;
glGenVertexArrays( 1, &VAO );
glGenBuffers( 1, &VBO );
// Bind the Vertex Array Object first, then bind and set vertex buffer(s) and attribute pointer(s).
glBindVertexArray( VAO );
glBindBuffer( GL_ARRAY_BUFFER, VBO );
glBufferData( GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW );
// Position attribute
glVertexAttribPointer( 0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof( GLfloat ), ( GLvoid * ) 0 );
glEnableVertexAttribArray( 0 );
// Color attribute
glVertexAttribPointer( 1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof( GLfloat ), ( GLvoid * )( 3 * sizeof( GLfloat ) ) );
glEnableVertexAttribArray( 1 );
glBindVertexArray( 0 ); // Unbind VAO
// Game loop
while ( !glfwWindowShouldClose( window ) )
{
// Check if any events have been activiated (key pressed, mouse moved etc.) and call corresponding response functions
glfwPollEvents( );
// Render
// Clear the colorbuffer
glClearColor( 0.2f, 0.3f, 0.3f, 1.0f );
glClear( GL_COLOR_BUFFER_BIT );
// Draw the triangle
ourShader.Use( );
glBindVertexArray( VAO );
glDrawArrays( GL_TRIANGLES, 0, 3 );
glBindVertexArray(0);
// Swap the screen buffers
glfwSwapBuffers( window );
}
// Properly de-allocate all resources once they've outlived their purpose
glDeleteVertexArrays( 1, &VAO );
glDeleteBuffers( 1, &VBO );
// Terminate GLFW, clearing any resources allocated by GLFW.
glfwTerminate( );
return EXIT_SUCCESS;
}
…和core.frag:
#version 330 core
in vec3 ourColor;
in vec2 TexCoord;
out vec4 color;
// Texture samplers
uniform sampler2D ourTexture1;
void main()
{
// Linearly interpolate between both textures (second texture is only slightly combined)
color = texture(ourTexture1, TexCoord);
}
我还附上了我的CMakeLists.txt。希望有帮助:
cmake_minimum_required(VERSION 3.9)
project(STUDY_GL)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -pthread -fpermissive")
find_package (OpenGL REQUIRED)
find_package (GLUT REQUIRED)
find_package (glfw3 REQUIRED)
find_library (glew REQUIRED)
find_library (glad REQUIRED)
include_directories(${/usr/include/GLFW/})
include_directories(${/usr/include/GL/})
file(GLOB SOURCE_FILES
*.cpp
*.h
)
add_executable(main.cpp ${SOURCE_FILES} Shader.h)
target_link_libraries (main.cpp ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES} ${GLFW3_LIBRARIES} -lGL -lglfw -lglut -lGLEW)
我在项目中有一个SOIL2目录。这是它的功能。一般来说,您的代码很好,但是您必须将
std::ifstream::failbit
传递到,因为如果失败,将设置failbit状态标志
vShaderFile.exceptions ( std::ifstream::failbit | std::ifstream::badbit );
fShaderFile.exceptions ( std::ifstream::failbit | std::ifstream::badbit );
try
{
vShaderFile.open( vertexPath );
fShaderFile.open( fragmentPath );
.....
}
catch ( std::ifstream::failure e )
{
std::cout << "ERROR::SHADER::FILE_NOT_SUCCESFULLY_READ" << std::endl;
}
vShaderFile.exceptions(std::ifstream::failbit | std::ifstream::badbit);
fShaderFile.exceptions(std::ifstream::failbit | std::ifstream::badbit);
尝试
{
vShaderFile.open(垂直);
fShaderFile.open(fragmentPath);
.....
}
捕获(std::ifstream::failure e)
{
std::cout当在末尾没有空终止符的着色器源传递给glShaderSource而不指定源字符串长度时,通常会发生您看到的错误。由于典型文件通常不包含空终止符,OpenGL将读取超过源字符串的结尾
解决方案是传入着色器源字符串的精确长度。如果在GLSL版本声明之后不写入core
,会发生什么?我只是问,因为我从未见过这样的声明。我认为只有badbit
传入,字符串将是空的,对吗?@rabbi76:应该,是的。
cmake_minimum_required(VERSION 3.9)
project(STUDY_GL)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -pthread -fpermissive")
find_package (OpenGL REQUIRED)
find_package (GLUT REQUIRED)
find_package (glfw3 REQUIRED)
find_library (glew REQUIRED)
find_library (glad REQUIRED)
include_directories(${/usr/include/GLFW/})
include_directories(${/usr/include/GL/})
file(GLOB SOURCE_FILES
*.cpp
*.h
)
add_executable(main.cpp ${SOURCE_FILES} Shader.h)
target_link_libraries (main.cpp ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES} ${GLFW3_LIBRARIES} -lGL -lglfw -lglut -lGLEW)
vShaderFile.exceptions ( std::ifstream::failbit | std::ifstream::badbit );
fShaderFile.exceptions ( std::ifstream::failbit | std::ifstream::badbit );
try
{
vShaderFile.open( vertexPath );
fShaderFile.open( fragmentPath );
.....
}
catch ( std::ifstream::failure e )
{
std::cout << "ERROR::SHADER::FILE_NOT_SUCCESFULLY_READ" << std::endl;
}
// color = texture(ourTexture1, TexCoord); <--- skip
color = vec4(ourColor,1.0); <--- add