void StaticObject::Draw() const
{
// Use the appropriate shader (depth or model)
UseShader();
// Draw the loaded model
model->Draw(Scene::Instance()->IsRenderingDepth() ? nullptr : shader.get());
}
bool Shader::SetShaderFile(char* sVSFileName, char* sFSFileName)
{
if (glIsProgram(m_Program))
{
CleanUp();
}
if (!ReadVertextShader(sVSFileName) || !ReadFragmentShader(sFSFileName))
{
return false;
}
GLint vertCompiled, fragCompiled; //状态值
GLint linked;
//创建shader对象
m_Vert = glCreateShader(GL_VERTEX_SHADER);
m_Frag = glCreateShader(GL_FRAGMENT_SHADER);
const GLchar *vv = m_VertexShader;
const GLchar *ff = m_FragmentShader;
//添加shader
glShaderSource(m_Vert,1,&vv,NULL);
glShaderSource(m_Frag,1,&ff,NULL);
//编译shader
glCompileShader(m_Vert);
printOpenGLError(); //检查OpenGL错误
//glGetObjectParameterivARB(m_Vert, GL_OBJECT_COMPILE_STATUS_ARB, &vertCompiled);
glGetShaderiv(m_Vert, GL_COMPILE_STATUS, &vertCompiled);
printShaderInfoLog(m_Vert);
glCompileShader(m_Frag);
printOpenGLError(); //检查OpenGL错误
//glGetObjectParameterivARB(m_Frag, GL_OBJECT_COMPILE_STATUS_ARB, &fragCompiled);
glGetShaderiv(m_Frag, GL_COMPILE_STATUS, &fragCompiled);
printShaderInfoLog(m_Frag);
if (!vertCompiled || !fragCompiled)
return false;
//创建程序对象
m_Program = glCreateProgram();
//绑定shader到程序对象
glAttachShader(m_Program,m_Vert);
glAttachShader(m_Program,m_Frag);
//链接程序
glLinkProgram(m_Program);
printOpenGLError(); //检查OpenGL错误
//glGetObjectParameterivARB(m_Program, GL_OBJECT_COMPILE_STATUS_ARB, &linked);
glGetProgramiv(m_Program, GL_LINK_STATUS, &linked);
printProgramInfoLog(m_Program);
if (!linked)
return false;
UseShader(true);
return true;
}
GLuint Shader::checkUniform(const char* uniName)
{
UseShader ();
// log msg only in the DEBUG version
int i = glGetUniformLocation (m_program, uniName);
#ifdef _DEBUG
if (i == -1)
{
std::cout << "UNIFORM " + std::string(uniName) + " DOES NOT EXIST!\n";
}
#endif
return i;
}
