PointLightPositionRenderer::PointLightPositionRenderer()
: Renderers::IcosahedronRendererBase()
{
InitializeVertexBuffer();
LoadShaders(mShader, "shaders/IcosahedronShader.PointLight.gs.glsl", "shaders/IcosahedronShader.PointLight.forward.fs.glsl");
InitializeUniforms(mShader);
LoadShaders(mWireFrameShader, "shaders/IcosahedronShader.PointLight.gs.glsl", "shaders/IcosahedronShader.WireFrame.forward.fs.glsl");
InitializeUniforms(mWireFrameShader);
mIsInitialized = true;
}
SpotLightPositionRenderer::SpotLightPositionRenderer(GLuint numStrips)
: Renderers::ConeRendererBase()
{
InitializeVertexBuffer(numStrips);
LoadShaders(mShader, "shaders/ConeShader.Light.gs.glsl", "shaders/ConeShader.Light.forward.fs.glsl");
InitializeUniforms(mShader);
LoadShaders(mWireFrameShader, "shaders/ConeShader.Light.gs.glsl", "shaders/IcosahedronShader.WireFrame.forward.fs.glsl");
InitializeUniforms(mWireFrameShader);
mIsInitialized = true;
}
void Shader::LoadShaderProgramFromFile()
{
assert(shaderID < 0 && "Already have loaded a shader");
std::ifstream file;
file.open(path, std::ifstream::in);
assert(file.good() && "Failed to open shader file!");
string fullFilePath = path.substr(0, path.find_last_of('/') + 1);
auto vertShaderID = 0;
auto fragShaderID = 0;
while (file.good())
{
string line = "";
std::getline(file, line);
if (line == "")
break;
auto fileToLoadPath = fullFilePath + line.substr(5);
auto fileToLoad = line.substr(0, 4);
if (fileToLoad == "vert")
{
vertShaderID = Load(GL_VERTEX_SHADER, fileToLoadPath);
}
else if (fileToLoad == "frag")
{
fragShaderID = Load(GL_FRAGMENT_SHADER, fileToLoadPath);
}
}
shaderID = glCreateProgram();
glAttachShader((GLuint)shaderID, (GLuint)fragShaderID);
glAttachShader((GLuint)shaderID, (GLuint)vertShaderID);
SetupAttributeBindings();
glLinkProgram(shaderID);
CheckForGLSLErrors();
glDeleteShader(vertShaderID);
glDeleteShader(fragShaderID);
BindIfNeeded();
InitializeUniforms();
UnbindIfNeeded();
}
