private static void LoadShaderFiles(Shader shader, string[] shaderRelativePaths)
{
foreach (string file in shaderRelativePaths)
{
// The input paths are relative to the main shader directory.
string shaderPath = shaderMainDir + "\\" + file;
if (!File.Exists(shaderPath))
{
continue;
}
// Read the shader file.
string shaderName = Path.GetFileNameWithoutExtension(shaderPath);
string shaderSource = File.ReadAllText(shaderPath);
// Determine the shader type based on the file extension.
if (file.EndsWith(".vert"))
{
shader.LoadShader(shaderSource, ShaderType.VertexShader, shaderName);
}
else if (file.EndsWith(".frag"))
{
shader.LoadShader(shaderSource, ShaderType.FragmentShader, shaderName);
}
else if (file.EndsWith(".geom"))
{
shader.LoadShader(shaderSource, ShaderType.GeometryShader, shaderName);
}
}
}
private static void CreateShader(string shaderName, string shaderFolder, List <String> additionalShaderFiles = null)
{
// All shaders should be named shaderName.frag, shaderName.vert, etc.
if (!Runtime.shaders.ContainsKey(shaderName))
{
Shader shader = new Shader();
// Additional shaders for utility functions. These should be loaded first.
// The order in which shaders are loaded is important.
if (additionalShaderFiles != null)
{
foreach (string file in additionalShaderFiles)
{
shader.LoadShader(MainForm.executableDir + "\\lib\\Shader\\" + file);
}
}
string shaderFileName = MainForm.executableDir + shaderFolder + "\\" + shaderName;
// Required shaders. These files can be omitted and specified in the additionalShaderFiles list.
if (File.Exists(shaderFileName + ".vert"))
{
shader.LoadShader(shaderFileName + ".vert");
}
if (File.Exists(shaderFileName + ".frag"))
{
shader.LoadShader(shaderFileName + ".frag");
}
// Geometry shaders are optional.
if (File.Exists(shaderFileName + ".geom"))
{
shader.LoadShader(shaderFileName + ".geom");
}
Runtime.shaders.Add(shaderName, shader);
}
}