public bool SetUniform(string varNameInShader, ValueType value)
{
bool gotUniform = false;
bool updated = false;
foreach (var item in this.uniformVariables)
{
if (item.VarName == varNameInShader)
{
updated = item.SetValue(value);
gotUniform = true;
break;
}
}
if (!gotUniform)
{
int location = shaderProgram.GetUniformLocation(varNameInShader);
if (location < 0)
{
throw new Exception(string.Format(
"uniform variable [{0}] not exists!", varNameInShader));
}
UniformVariable variable = GetVariable(value, varNameInShader);
variable.SetValue(value);
this.uniformVariables.Add(variable);
updated = true;
}
return(updated);
}
/// <summary>
/// Initialize this shader program object.
/// </summary>
/// <param name="shaders"></param>
public void Initialize(params Shader[] shaders)
{
foreach (var item in shaders)
{
item.Initialize();
}
//if (shaders.Length < 1) { throw new ArgumentException(); }
uint programId = this.ProgramId;
foreach (Shader item in shaders)
{
glAttachShader(programId, item.ShaderId);
}
glLinkProgram(programId);
this.CheckLinkStatus(programId);
UniformVarInShader[] variables = LoadAllUniformsInShader();
foreach (var item in variables)
{
UniformVariable variable = item.GetUniformVariable(programId);
if (variable != null)
{
this.uniformVariables.Add(variable.VarName, variable);
}
}
}
private void ResetUniformValues(ShaderProgram program)
{
//while (uniformArrayVariableStack.Count > 0)
//{
// UniformArrayVariable item = uniformArrayVariableStack.Pop();
// item.ResetUniform(program);
//}
while (uniformVariableStack.Count > 0)
{
UniformVariable item = uniformVariableStack.Pop();
item.ResetUniform(program);
}
}
private void btnMoveDown_Click(object sender, EventArgs e)
{
int index = this.lstMember.SelectedIndex;
if (0 <= index && index + 1 < this.lstMember.Items.Count)
{
object item = this.lstMember.Items[index];
this.lstMember.Items.RemoveAt(index);
UniformVariable obj = this.list[index];
this.list.RemoveAt(index);
this.lstMember.Items.Insert(index + 1, item);
this.list.Insert(index + 1, obj);
this.lstMember.SelectedIndex = index + 1;
}
}