feat(OpenGL): lab2
This commit is contained in:
iridiumR
parent
fc8dcfe0b0
commit
342604514a
|
|
@ -0,0 +1,61 @@
|
|||
#源文件目录
|
||||
SRC_DIR := ./src
|
||||
#头文件目录
|
||||
INC_DIR := ./include
|
||||
#输出文件目录
|
||||
OUT_DIR := ./build
|
||||
#目标文件（中间文件）目录
|
||||
OBJ_DIR :=./build
|
||||
#链接选项
|
||||
LDFLAGS := $(shell pkg-config --static --libs glfw3)
|
||||
#编译工具链
|
||||
CC := g++
|
||||
#输出文件命名
|
||||
OUT := $(OUT_DIR)/lab2
|
||||
|
||||
#增加所有头文件所在的目录
|
||||
# INC_DIR += ./include/glad
|
||||
# INC_DIR += ./include/KHR
|
||||
|
||||
#获取头文件目录
|
||||
CPP_FLAGS := $(foreach dir, $(INC_DIR), -I$(wildcard $(dir)))
|
||||
|
||||
#方法一： 将所有源文件的文件目录添加进来，就不用每增加一个文件都修改一下makefile文件
|
||||
#SRC_DIR += ./src/
|
||||
|
||||
#获取所有cpp文件名
|
||||
CPP_SRCS := $(foreach dir, $(SRC_DIR), $(wildcard $(dir)/*.cpp))
|
||||
|
||||
#方法二：将增加的文件(带目录)增加到源文件数组中，此操作不用增加源文件目录
|
||||
# CPP_SRCS += ./src/sub_path1/*.cpp
|
||||
# CPP_SRCS += ./src/sub_path2/*.cpp
|
||||
# CPP_SRCS += ./src/sub_path....../*.cpp
|
||||
# CPP_SRCS += ./src/sub_pathn/*.cpp
|
||||
|
||||
#生成所有的目标文件名
|
||||
OBJ := $(addprefix $(OBJ_DIR)/, $(notdir $(CPP_SRCS:.cpp=.o)))
|
||||
|
||||
# 最终目标文件的生成（makefile 会将第一个target设为最终生成的目标文件
|
||||
# 【当然这里可以不是可执行文件，它也可以是.o文件】），链接过程
|
||||
# 这条语句的完全写法应该是：
|
||||
# ./OUT/xxx.OUT: prerequisites1.o prerequisites2.o prerequisites3.o ...
|
||||
# g++ prerequisites1.o prerequisites2.o prerequisites3.o ... -o ./OUT/xxx.OUT
|
||||
$(OUT):$(OBJ)
|
||||
$(CC) $^ -o $@ $(LDFLAGS)
|
||||
|
||||
#将所有的.cpp文件加载到当前的路径中
|
||||
vpath %.cpp $(sort $(dir $(CPP_SRCS)))
|
||||
#将所有的源文件编译生成响应的目标文件
|
||||
$(OBJ_DIR)/%.o:%.cpp
|
||||
$(CC) $(CPP_FLAGS) -c $< -o $@
|
||||
|
||||
nv:$(OUT)
|
||||
prime-run ./$(OUT)
|
||||
|
||||
run:$(OUT)
|
||||
./$(OUT)
|
||||
|
||||
.PHONY:clean
|
||||
clean:
|
||||
rm -rf ./${OUT_DIR}/*
|
||||
rm -rf ./${OBJ_DIR}/*
|
||||
|
|
@ -0,0 +1,311 @@
|
|||
#ifndef __khrplatform_h_
|
||||
#define __khrplatform_h_
|
||||
|
||||
/*
|
||||
** Copyright (c) 2008-2018 The Khronos Group Inc.
|
||||
**
|
||||
** Permission is hereby granted, free of charge, to any person obtaining a
|
||||
** copy of this software and/or associated documentation files (the
|
||||
** "Materials"), to deal in the Materials without restriction, including
|
||||
** without limitation the rights to use, copy, modify, merge, publish,
|
||||
** distribute, sublicense, and/or sell copies of the Materials, and to
|
||||
** permit persons to whom the Materials are furnished to do so, subject to
|
||||
** the following conditions:
|
||||
**
|
||||
** The above copyright notice and this permission notice shall be included
|
||||
** in all copies or substantial portions of the Materials.
|
||||
**
|
||||
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
|
||||
*/
|
||||
|
||||
/* Khronos platform-specific types and definitions.
|
||||
*
|
||||
* The master copy of khrplatform.h is maintained in the Khronos EGL
|
||||
* Registry repository at https://github.com/KhronosGroup/EGL-Registry
|
||||
* The last semantic modification to khrplatform.h was at commit ID:
|
||||
* 67a3e0864c2d75ea5287b9f3d2eb74a745936692
|
||||
*
|
||||
* Adopters may modify this file to suit their platform. Adopters are
|
||||
* encouraged to submit platform specific modifications to the Khronos
|
||||
* group so that they can be included in future versions of this file.
|
||||
* Please submit changes by filing pull requests or issues on
|
||||
* the EGL Registry repository linked above.
|
||||
*
|
||||
*
|
||||
* See the Implementer's Guidelines for information about where this file
|
||||
* should be located on your system and for more details of its use:
|
||||
* http://www.khronos.org/registry/implementers_guide.pdf
|
||||
*
|
||||
* This file should be included as
|
||||
* #include <KHR/khrplatform.h>
|
||||
* by Khronos client API header files that use its types and defines.
|
||||
*
|
||||
* The types in khrplatform.h should only be used to define API-specific types.
|
||||
*
|
||||
* Types defined in khrplatform.h:
|
||||
* khronos_int8_t signed 8 bit
|
||||
* khronos_uint8_t unsigned 8 bit
|
||||
* khronos_int16_t signed 16 bit
|
||||
* khronos_uint16_t unsigned 16 bit
|
||||
* khronos_int32_t signed 32 bit
|
||||
* khronos_uint32_t unsigned 32 bit
|
||||
* khronos_int64_t signed 64 bit
|
||||
* khronos_uint64_t unsigned 64 bit
|
||||
* khronos_intptr_t signed same number of bits as a pointer
|
||||
* khronos_uintptr_t unsigned same number of bits as a pointer
|
||||
* khronos_ssize_t signed size
|
||||
* khronos_usize_t unsigned size
|
||||
* khronos_float_t signed 32 bit floating point
|
||||
* khronos_time_ns_t unsigned 64 bit time in nanoseconds
|
||||
* khronos_utime_nanoseconds_t unsigned time interval or absolute time in
|
||||
* nanoseconds
|
||||
* khronos_stime_nanoseconds_t signed time interval in nanoseconds
|
||||
* khronos_boolean_enum_t enumerated boolean type. This should
|
||||
* only be used as a base type when a client API's boolean type is
|
||||
* an enum. Client APIs which use an integer or other type for
|
||||
* booleans cannot use this as the base type for their boolean.
|
||||
*
|
||||
* Tokens defined in khrplatform.h:
|
||||
*
|
||||
* KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
|
||||
*
|
||||
* KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
|
||||
* KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
|
||||
*
|
||||
* Calling convention macros defined in this file:
|
||||
* KHRONOS_APICALL
|
||||
* KHRONOS_APIENTRY
|
||||
* KHRONOS_APIATTRIBUTES
|
||||
*
|
||||
* These may be used in function prototypes as:
|
||||
*
|
||||
* KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
|
||||
* int arg1,
|
||||
* int arg2) KHRONOS_APIATTRIBUTES;
|
||||
*/
|
||||
|
||||
#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)
|
||||
# define KHRONOS_STATIC 1
|
||||
#endif
|
||||
|
||||
/*-------------------------------------------------------------------------
|
||||
* Definition of KHRONOS_APICALL
|
||||
*-------------------------------------------------------------------------
|
||||
* This precedes the return type of the function in the function prototype.
|
||||
*/
|
||||
#if defined(KHRONOS_STATIC)
|
||||
/* If the preprocessor constant KHRONOS_STATIC is defined, make the
|
||||
* header compatible with static linking. */
|
||||
# define KHRONOS_APICALL
|
||||
#elif defined(_WIN32)
|
||||
# define KHRONOS_APICALL __declspec(dllimport)
|
||||
#elif defined (__SYMBIAN32__)
|
||||
# define KHRONOS_APICALL IMPORT_C
|
||||
#elif defined(__ANDROID__)
|
||||
# define KHRONOS_APICALL __attribute__((visibility("default")))
|
||||
#else
|
||||
# define KHRONOS_APICALL
|
||||
#endif
|
||||
|
||||
/*-------------------------------------------------------------------------
|
||||
* Definition of KHRONOS_APIENTRY
|
||||
*-------------------------------------------------------------------------
|
||||
* This follows the return type of the function and precedes the function
|
||||
* name in the function prototype.
|
||||
*/
|
||||
#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
|
||||
/* Win32 but not WinCE */
|
||||
# define KHRONOS_APIENTRY __stdcall
|
||||
#else
|
||||
# define KHRONOS_APIENTRY
|
||||
#endif
|
||||
|
||||
/*-------------------------------------------------------------------------
|
||||
* Definition of KHRONOS_APIATTRIBUTES
|
||||
*-------------------------------------------------------------------------
|
||||
* This follows the closing parenthesis of the function prototype arguments.
|
||||
*/
|
||||
#if defined (__ARMCC_2__)
|
||||
#define KHRONOS_APIATTRIBUTES __softfp
|
||||
#else
|
||||
#define KHRONOS_APIATTRIBUTES
|
||||
#endif
|
||||
|
||||
/*-------------------------------------------------------------------------
|
||||
* basic type definitions
|
||||
*-----------------------------------------------------------------------*/
|
||||
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
|
||||
|
||||
|
||||
/*
|
||||
* Using <stdint.h>
|
||||
*/
|
||||
#include <stdint.h>
|
||||
typedef int32_t khronos_int32_t;
|
||||
typedef uint32_t khronos_uint32_t;
|
||||
typedef int64_t khronos_int64_t;
|
||||
typedef uint64_t khronos_uint64_t;
|
||||
#define KHRONOS_SUPPORT_INT64 1
|
||||
#define KHRONOS_SUPPORT_FLOAT 1
|
||||
/*
|
||||
* To support platform where unsigned long cannot be used interchangeably with
|
||||
* inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t.
|
||||
* Ideally, we could just use (u)intptr_t everywhere, but this could result in
|
||||
* ABI breakage if khronos_uintptr_t is changed from unsigned long to
|
||||
* unsigned long long or similar (this results in different C++ name mangling).
|
||||
* To avoid changes for existing platforms, we restrict usage of intptr_t to
|
||||
* platforms where the size of a pointer is larger than the size of long.
|
||||
*/
|
||||
#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__)
|
||||
#if __SIZEOF_POINTER__ > __SIZEOF_LONG__
|
||||
#define KHRONOS_USE_INTPTR_T
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#elif defined(__VMS ) || defined(__sgi)
|
||||
|
||||
/*
|
||||
* Using <inttypes.h>
|
||||
*/
|
||||
#include <inttypes.h>
|
||||
typedef int32_t khronos_int32_t;
|
||||
typedef uint32_t khronos_uint32_t;
|
||||
typedef int64_t khronos_int64_t;
|
||||
typedef uint64_t khronos_uint64_t;
|
||||
#define KHRONOS_SUPPORT_INT64 1
|
||||
#define KHRONOS_SUPPORT_FLOAT 1
|
||||
|
||||
#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
|
||||
|
||||
/*
|
||||
* Win32
|
||||
*/
|
||||
typedef __int32 khronos_int32_t;
|
||||
typedef unsigned __int32 khronos_uint32_t;
|
||||
typedef __int64 khronos_int64_t;
|
||||
typedef unsigned __int64 khronos_uint64_t;
|
||||
#define KHRONOS_SUPPORT_INT64 1
|
||||
#define KHRONOS_SUPPORT_FLOAT 1
|
||||
|
||||
#elif defined(__sun__) || defined(__digital__)
|
||||
|
||||
/*
|
||||
* Sun or Digital
|
||||
*/
|
||||
typedef int khronos_int32_t;
|
||||
typedef unsigned int khronos_uint32_t;
|
||||
#if defined(__arch64__) || defined(_LP64)
|
||||
typedef long int khronos_int64_t;
|
||||
typedef unsigned long int khronos_uint64_t;
|
||||
#else
|
||||
typedef long long int khronos_int64_t;
|
||||
typedef unsigned long long int khronos_uint64_t;
|
||||
#endif /* __arch64__ */
|
||||
#define KHRONOS_SUPPORT_INT64 1
|
||||
#define KHRONOS_SUPPORT_FLOAT 1
|
||||
|
||||
#elif 0
|
||||
|
||||
/*
|
||||
* Hypothetical platform with no float or int64 support
|
||||
*/
|
||||
typedef int khronos_int32_t;
|
||||
typedef unsigned int khronos_uint32_t;
|
||||
#define KHRONOS_SUPPORT_INT64 0
|
||||
#define KHRONOS_SUPPORT_FLOAT 0
|
||||
|
||||
#else
|
||||
|
||||
/*
|
||||
* Generic fallback
|
||||
*/
|
||||
#include <stdint.h>
|
||||
typedef int32_t khronos_int32_t;
|
||||
typedef uint32_t khronos_uint32_t;
|
||||
typedef int64_t khronos_int64_t;
|
||||
typedef uint64_t khronos_uint64_t;
|
||||
#define KHRONOS_SUPPORT_INT64 1
|
||||
#define KHRONOS_SUPPORT_FLOAT 1
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* Types that are (so far) the same on all platforms
|
||||
*/
|
||||
typedef signed char khronos_int8_t;
|
||||
typedef unsigned char khronos_uint8_t;
|
||||
typedef signed short int khronos_int16_t;
|
||||
typedef unsigned short int khronos_uint16_t;
|
||||
|
||||
/*
|
||||
* Types that differ between LLP64 and LP64 architectures - in LLP64,
|
||||
* pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
|
||||
* to be the only LLP64 architecture in current use.
|
||||
*/
|
||||
#ifdef KHRONOS_USE_INTPTR_T
|
||||
typedef intptr_t khronos_intptr_t;
|
||||
typedef uintptr_t khronos_uintptr_t;
|
||||
#elif defined(_WIN64)
|
||||
typedef signed long long int khronos_intptr_t;
|
||||
typedef unsigned long long int khronos_uintptr_t;
|
||||
#else
|
||||
typedef signed long int khronos_intptr_t;
|
||||
typedef unsigned long int khronos_uintptr_t;
|
||||
#endif
|
||||
|
||||
#if defined(_WIN64)
|
||||
typedef signed long long int khronos_ssize_t;
|
||||
typedef unsigned long long int khronos_usize_t;
|
||||
#else
|
||||
typedef signed long int khronos_ssize_t;
|
||||
typedef unsigned long int khronos_usize_t;
|
||||
#endif
|
||||
|
||||
#if KHRONOS_SUPPORT_FLOAT
|
||||
/*
|
||||
* Float type
|
||||
*/
|
||||
typedef float khronos_float_t;
|
||||
#endif
|
||||
|
||||
#if KHRONOS_SUPPORT_INT64
|
||||
/* Time types
|
||||
*
|
||||
* These types can be used to represent a time interval in nanoseconds or
|
||||
* an absolute Unadjusted System Time. Unadjusted System Time is the number
|
||||
* of nanoseconds since some arbitrary system event (e.g. since the last
|
||||
* time the system booted). The Unadjusted System Time is an unsigned
|
||||
* 64 bit value that wraps back to 0 every 584 years. Time intervals
|
||||
* may be either signed or unsigned.
|
||||
*/
|
||||
typedef khronos_uint64_t khronos_utime_nanoseconds_t;
|
||||
typedef khronos_int64_t khronos_stime_nanoseconds_t;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Dummy value used to pad enum types to 32 bits.
|
||||
*/
|
||||
#ifndef KHRONOS_MAX_ENUM
|
||||
#define KHRONOS_MAX_ENUM 0x7FFFFFFF
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Enumerated boolean type
|
||||
*
|
||||
* Values other than zero should be considered to be true. Therefore
|
||||
* comparisons should not be made against KHRONOS_TRUE.
|
||||
*/
|
||||
typedef enum {
|
||||
KHRONOS_FALSE = 0,
|
||||
KHRONOS_TRUE = 1,
|
||||
KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
|
||||
} khronos_boolean_enum_t;
|
||||
|
||||
#endif /* __khrplatform_h_ */
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,168 @@
|
|||
|
||||
|
||||
#ifndef SHADER_H
|
||||
#define SHADER_H
|
||||
|
||||
#include <glad/glad.h>
|
||||
#include <glm/glm.hpp>
|
||||
|
||||
#include <string>
|
||||
#include <fstream>
|
||||
#include <sstream>
|
||||
#include <iostream>
|
||||
|
||||
class Shader
|
||||
{
|
||||
public:
|
||||
unsigned int ID;
|
||||
// constructor generates the shader on the fly
|
||||
// ------------------------------------------------------------------------
|
||||
Shader(const char* vertexPath, const char* fragmentPath)
|
||||
{
|
||||
// 1. retrieve the vertex/fragment source code from filePath
|
||||
std::string vertexCode;
|
||||
std::string fragmentCode;
|
||||
std::ifstream vShaderFile;
|
||||
std::ifstream fShaderFile;
|
||||
// ensure ifstream objects can throw exceptions:
|
||||
vShaderFile.exceptions (std::ifstream::failbit | std::ifstream::badbit);
|
||||
fShaderFile.exceptions (std::ifstream::failbit | std::ifstream::badbit);
|
||||
try
|
||||
{
|
||||
// open files
|
||||
vShaderFile.open(vertexPath);
|
||||
fShaderFile.open(fragmentPath);
|
||||
std::stringstream vShaderStream, fShaderStream;
|
||||
// read file's buffer contents into streams
|
||||
vShaderStream << vShaderFile.rdbuf();
|
||||
fShaderStream << fShaderFile.rdbuf();
|
||||
// close file handlers
|
||||
vShaderFile.close();
|
||||
fShaderFile.close();
|
||||
// convert stream into string
|
||||
vertexCode = vShaderStream.str();
|
||||
fragmentCode = fShaderStream.str();
|
||||
}
|
||||
catch (std::ifstream::failure& e)
|
||||
{
|
||||
std::cout << "ERROR::SHADER::FILE_NOT_SUCCESSFULLY_READ: " << e.what() << std::endl;
|
||||
}
|
||||
const char* vShaderCode = vertexCode.c_str();
|
||||
const char * fShaderCode = fragmentCode.c_str();
|
||||
// 2. compile shaders
|
||||
unsigned int vertex, fragment;
|
||||
// vertex shader
|
||||
vertex = glCreateShader(GL_VERTEX_SHADER);
|
||||
glShaderSource(vertex, 1, &vShaderCode, NULL);
|
||||
glCompileShader(vertex);
|
||||
checkCompileErrors(vertex, "VERTEX");
|
||||
// fragment Shader
|
||||
fragment = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
glShaderSource(fragment, 1, &fShaderCode, NULL);
|
||||
glCompileShader(fragment);
|
||||
checkCompileErrors(fragment, "FRAGMENT");
|
||||
// shader Program
|
||||
ID = glCreateProgram();
|
||||
glAttachShader(ID, vertex);
|
||||
glAttachShader(ID, fragment);
|
||||
glLinkProgram(ID);
|
||||
checkCompileErrors(ID, "PROGRAM");
|
||||
// delete the shaders as they're linked into our program now and no longer necessary
|
||||
glDeleteShader(vertex);
|
||||
glDeleteShader(fragment);
|
||||
|
||||
}
|
||||
// activate the shader
|
||||
// ------------------------------------------------------------------------
|
||||
void use() const
|
||||
{
|
||||
glUseProgram(ID);
|
||||
}
|
||||
// utility uniform functions
|
||||
// ------------------------------------------------------------------------
|
||||
void setBool(const std::string &name, bool value) const
|
||||
{
|
||||
glUniform1i(glGetUniformLocation(ID, name.c_str()), (int)value);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setInt(const std::string &name, int value) const
|
||||
{
|
||||
glUniform1i(glGetUniformLocation(ID, name.c_str()), value);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setFloat(const std::string &name, float value) const
|
||||
{
|
||||
glUniform1f(glGetUniformLocation(ID, name.c_str()), value);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setVec2(const std::string &name, const glm::vec2 &value) const
|
||||
{
|
||||
glUniform2fv(glGetUniformLocation(ID, name.c_str()), 1, &value[0]);
|
||||
}
|
||||
void setVec2(const std::string &name, float x, float y) const
|
||||
{
|
||||
glUniform2f(glGetUniformLocation(ID, name.c_str()), x, y);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setVec3(const std::string &name, const glm::vec3 &value) const
|
||||
{
|
||||
glUniform3fv(glGetUniformLocation(ID, name.c_str()), 1, &value[0]);
|
||||
}
|
||||
void setVec3(const std::string &name, float x, float y, float z) const
|
||||
{
|
||||
glUniform3f(glGetUniformLocation(ID, name.c_str()), x, y, z);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setVec4(const std::string &name, const glm::vec4 &value) const
|
||||
{
|
||||
glUniform4fv(glGetUniformLocation(ID, name.c_str()), 1, &value[0]);
|
||||
}
|
||||
void setVec4(const std::string &name, float x, float y, float z, float w) const
|
||||
{
|
||||
glUniform4f(glGetUniformLocation(ID, name.c_str()), x, y, z, w);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setMat2(const std::string &name, const glm::mat2 &mat) const
|
||||
{
|
||||
glUniformMatrix2fv(glGetUniformLocation(ID, name.c_str()), 1, GL_FALSE, &mat[0][0]);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setMat3(const std::string &name, const glm::mat3 &mat) const
|
||||
{
|
||||
glUniformMatrix3fv(glGetUniformLocation(ID, name.c_str()), 1, GL_FALSE, &mat[0][0]);
|
||||
}
|
||||
// ------------------------------------------------------------------------
|
||||
void setMat4(const std::string &name, const glm::mat4 &mat) const
|
||||
{
|
||||
glUniformMatrix4fv(glGetUniformLocation(ID, name.c_str()), 1, GL_FALSE, &mat[0][0]);
|
||||
}
|
||||
|
||||
private:
|
||||
// utility function for checking shader compilation/linking errors.
|
||||
// ------------------------------------------------------------------------
|
||||
void checkCompileErrors(GLuint shader, std::string type)
|
||||
{
|
||||
GLint success;
|
||||
GLchar infoLog[1024];
|
||||
if (type != "PROGRAM")
|
||||
{
|
||||
glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
|
||||
if (!success)
|
||||
{
|
||||
glGetShaderInfoLog(shader, 1024, NULL, infoLog);
|
||||
std::cout << "ERROR::SHADER_COMPILATION_ERROR of type: " << type << "\n" << infoLog << "\n -- --------------------------------------------------- -- " << std::endl;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
glGetProgramiv(shader, GL_LINK_STATUS, &success);
|
||||
if (!success)
|
||||
{
|
||||
glGetProgramInfoLog(shader, 1024, NULL, infoLog);
|
||||
std::cout << "ERROR::PROGRAM_LINKING_ERROR of type: " << type << "\n" << infoLog << "\n -- --------------------------------------------------- -- " << std::endl;
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
#endif
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
Binary file not shown.
|
After Width: | Height: | Size: 238 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 525 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 195 KiB |
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,179 @@
|
|||
#include "glad/glad.h"
|
||||
#include "shader.h"
|
||||
#include "stb_image.h"
|
||||
#include <GLFW/glfw3.h>
|
||||
#include <cmath>
|
||||
#include <iostream>
|
||||
#include <glm/glm.hpp>
|
||||
#include <glm/gtc/matrix_transform.hpp>
|
||||
#include <glm/gtc/type_ptr.hpp>
|
||||
|
||||
// 四边形顶点
|
||||
float vertices[] = {
|
||||
// ---- 位置 ---- ---- 颜色 ---- - 纹理坐标 -
|
||||
0.2f, 0.4f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, // 右上
|
||||
0.2f, -0.4f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, // 右下
|
||||
-0.2f, -0.4f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, // 左下
|
||||
-0.2f, 0.4f, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f // 左上
|
||||
};
|
||||
|
||||
// 索引
|
||||
unsigned int indices[] = {
|
||||
0, 1, 3, // 第一个三角形
|
||||
1, 2, 3 // 第二个三角形
|
||||
};
|
||||
|
||||
void framebuffer_size_callback(GLFWwindow *window, int width, int height);
|
||||
void processInput(GLFWwindow *window);
|
||||
|
||||
// settings
|
||||
const unsigned int SCR_WIDTH = 600;
|
||||
const unsigned int SCR_HEIGHT = 600;
|
||||
|
||||
int main() {
|
||||
|
||||
// 设置 glfw
|
||||
glfwInit();
|
||||
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);
|
||||
|
||||
// 创建窗口
|
||||
GLFWwindow *window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
|
||||
if (window == NULL) {
|
||||
std::cout << "Failed to create GLFW window" << std::endl;
|
||||
glfwTerminate();
|
||||
return -1;
|
||||
}
|
||||
glfwMakeContextCurrent(window);
|
||||
|
||||
// 加载glad
|
||||
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
|
||||
std::cout << "Failed to initialize GLAD" << std::endl;
|
||||
return -1;
|
||||
}
|
||||
|
||||
// 设置视口
|
||||
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
|
||||
|
||||
// 创建着色器程序
|
||||
Shader shader = Shader("src/tex.vs", "src/tex.fs");
|
||||
|
||||
unsigned int VAO, VBO, EBO;
|
||||
// 创建顶点数组对象
|
||||
glGenVertexArrays(1, &VAO);
|
||||
glBindVertexArray(VAO);
|
||||
|
||||
// 创建顶点缓冲对象
|
||||
glGenBuffers(1, &VBO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, VBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
|
||||
|
||||
// 创建索引缓冲对象
|
||||
glGenBuffers(1, &EBO);
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices,
|
||||
GL_STATIC_DRAW);
|
||||
|
||||
// 顶点属性
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void *)0);
|
||||
glEnableVertexAttribArray(0);
|
||||
// 颜色属性
|
||||
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float),
|
||||
(void *)(3 * sizeof(float)));
|
||||
glEnableVertexAttribArray(1);
|
||||
// 纹理坐标属性
|
||||
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float),
|
||||
(void *)(6 * sizeof(float)));
|
||||
glEnableVertexAttribArray(2);
|
||||
|
||||
// 创建纹理
|
||||
unsigned int texture;
|
||||
glGenTextures(1, &texture);
|
||||
glBindTexture(GL_TEXTURE_2D, texture);
|
||||
// 设置纹理环绕方式
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
// 设置纹理过滤方式
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
|
||||
GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
// 加载并生成纹理
|
||||
// 图片翻转y轴
|
||||
stbi_set_flip_vertically_on_load(true);
|
||||
int width, height, nrChannels;
|
||||
unsigned char *data =
|
||||
stbi_load("resources/bf-half.png", &width, &height, &nrChannels, 0);
|
||||
if (data) {
|
||||
|
||||
// note that the awesomeface.png has transparency and thus an alpha channel,
|
||||
// so make sure to tell OpenGL the data type is of GL_RGBA
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,
|
||||
GL_UNSIGNED_BYTE, data);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
} else {
|
||||
std::cout << "Failed to load texture" << std::endl;
|
||||
}
|
||||
stbi_image_free(data);
|
||||
|
||||
// 激活着色器
|
||||
shader.use();
|
||||
// 绑定纹理
|
||||
shader.setInt("tex", 0);
|
||||
|
||||
// 设置变换矩阵
|
||||
|
||||
// 循环渲染
|
||||
while (!glfwWindowShouldClose(window)) {
|
||||
// 处理输入
|
||||
processInput(window);
|
||||
|
||||
// 设置为白色
|
||||
glClearColor(1.0f, 1.0f, 1.0f, 0.0f);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
// 绑定纹理
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_2D, texture);
|
||||
|
||||
// 绘制三角形
|
||||
shader.use();
|
||||
glBindVertexArray(VAO);
|
||||
|
||||
glm::mat4 trans(1.0f);
|
||||
trans = glm::rotate(trans, float(-sin((float)glfwGetTime())), glm::vec3(0.0, 1.0, 0.0));
|
||||
trans = glm::translate(trans,glm::vec3(-0.2,0.0,0.0));
|
||||
shader.setMat4("trans",trans);
|
||||
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
|
||||
|
||||
trans = glm::mat4(1.0f);
|
||||
trans = glm::rotate(trans, float(-sin((float)glfwGetTime())), glm::vec3(0.0, 1.0, 0.0));
|
||||
trans = glm::translate(trans,glm::vec3(0.2,0.0,0.0));
|
||||
trans = glm::rotate(trans,glm::radians(180.0f), glm::vec3(0.0, 1.0, 0.0));
|
||||
// trans = glm::rotate(trans, (float)glfwGetTime(), glm::vec3(0.0, 0.5, 0.5));
|
||||
// trans = glm::scale(trans, glm::vec3(0.5, 0.5, 0.5));
|
||||
shader.setMat4("trans",trans);
|
||||
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
|
||||
|
||||
// 检查并调用事件，交换缓冲
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
}
|
||||
|
||||
// 释放资源
|
||||
glfwTerminate();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// 处理输入
|
||||
void processInput(GLFWwindow *window) {
|
||||
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
|
||||
glfwSetWindowShouldClose(window, true);
|
||||
}
|
||||
|
||||
// 窗口大小改变时回调该函数
|
||||
void framebuffer_size_callback(GLFWwindow *window, int width, int height) {
|
||||
glViewport(0, 0, width, height);
|
||||
}
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
#define STB_IMAGE_IMPLEMENTATION
|
||||
#include "stb_image.h"
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
#version 330 core
|
||||
out vec4 FragColor;
|
||||
|
||||
in vec3 ourColor;
|
||||
in vec2 TexCoord;
|
||||
|
||||
uniform sampler2D tex;
|
||||
|
||||
void main() {
|
||||
// FragColor = texture(tex, TexCoord) * vec4(ourColor, 1.0);
|
||||
if (texture(tex, TexCoord).a < 0.7)
|
||||
discard;
|
||||
FragColor = texture(tex, TexCoord);
|
||||
}
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
#version 330 core
|
||||
layout (location = 0) in vec3 aPos;
|
||||
layout (location = 1) in vec3 aColor;
|
||||
layout (location = 2) in vec2 aTexCoord;
|
||||
|
||||
out vec3 ourColor;
|
||||
out vec2 TexCoord;
|
||||
|
||||
uniform mat4 trans;
|
||||
|
||||
void main()
|
||||
{
|
||||
gl_Position = trans * vec4(aPos, 1.0);
|
||||
ourColor = aColor;
|
||||
TexCoord = aTexCoord;
|
||||
}
|
||||
Reference in New Issue