public override void CleanUp()
{
AttributeIDs.Clear();
UniformIDs.Clear();
GL.DeleteProgram(program);
}
public void SetUniformVector4(string uniformName, ref Vector4 value)
{
if (UniformIDs.ContainsKey(uniformName))
{
int uniformID = UniformIDs[uniformName];
if (uniformID != -1)
{
GL.Uniform4(uniformID, value);
}
}
}
public void SetUniformMatrix4(string uniformName, bool transpose, ref Matrix4 value)
{
if (UniformIDs.ContainsKey(uniformName))
{
int uniformID = UniformIDs[uniformName];
if (uniformID != -1)
{
GL.UniformMatrix4(uniformID, transpose, ref value);
}
}
}
public void SetUniform1(string uniformName, double value)
{
if (UniformIDs.ContainsKey(uniformName))
{
int uniformID = UniformIDs[uniformName];
if (uniformID != -1)
{
GL.Uniform1(uniformID, value);
}
}
}
public Shader(string name)
: base(name)
{
var vsFileStream = Resources.GetFile(ShaderRootPath + Name + ".vs");
string vsCode;
using (var sr = new StreamReader(vsFileStream))
{
vsCode = sr.ReadToEnd();
}
int vs = GL.CreateShader(ShaderType.VertexShader);
GL.ShaderSource(vs, vsCode);
GL.CompileShader(vs);
var fsFileStream = Resources.GetFile(ShaderRootPath + Name + ".fs");
string fsCode;
using (var sr = new StreamReader(fsFileStream))
{
fsCode = sr.ReadToEnd();
}
int fs = GL.CreateShader(ShaderType.FragmentShader);
GL.ShaderSource(fs, fsCode);
GL.CompileShader(fs);
program = GL.CreateProgram();
GL.AttachShader(program, vs);
GL.AttachShader(program, fs);
GL.LinkProgram(program);
GL.DetachShader(program, vs);
GL.DetachShader(program, fs);
int attributeCount;
GL.GetProgramInterface(program, ProgramInterface.ProgramInput, ProgramInterfaceParameter.ActiveResources, out attributeCount);
for (int i = 0; i < attributeCount; i++)
{
int size;
int length;
ActiveAttribType type;
StringBuilder attributeName = new StringBuilder();
GL.GetActiveAttrib(program, i, (int)ProgramInterfaceParameter.MaxNameLength, out length, out size, out type, attributeName);
AttributeIDs.Add(attributeName.ToString(), GL.GetAttribLocation(program, attributeName.ToString()));
}
int uniformCount;
GL.GetProgramInterface(program, ProgramInterface.Uniform, ProgramInterfaceParameter.ActiveResources, out uniformCount);
for (int i = 0; i < uniformCount; i++)
{
int size;
int length;
ActiveUniformType type;
StringBuilder uniformName = new StringBuilder();
GL.GetActiveUniform(program, i, (int)ProgramInterfaceParameter.MaxNameLength, out length, out size, out type, uniformName);
UniformIDs.Add(uniformName.ToString(), GL.GetUniformLocation(program, uniformName.ToString()));
}
}
