// Add a warning to the node if the ShaderGUI is not found by Unity.
private void AddWarningIfNeeded(ShaderGUIOverrideInfo shaderGuiOverrideInfo)
{
if (shaderGuiOverrideInfo.OverrideEnabled && shaderGuiOverrideInfo.ShaderGUIOverride != null &&
!ValidCustomEditorType(shaderGuiOverrideInfo.ShaderGUIOverride))
{
m_MasterNode.owner.messageManager?.ClearNodesFromProvider(m_MasterNode,
m_MasterNode.ToEnumerable());
m_MasterNode.owner.messageManager?.AddOrAppendError(m_MasterNode, m_MasterNode.objectId,
new ShaderMessage(string.Format(k_InvalidShaderGUI, shaderGuiOverrideInfo.ShaderGUIOverride),
ShaderCompilerMessageSeverity.Warning));
}
else
{
m_MasterNode.owner.messageManager?.ClearNodesFromProvider(m_MasterNode,
m_MasterNode.ToEnumerable());
}
}
private VisualElement CreateGUI(
ChangeValueCallback valueChangedCallback,
ShaderGUIOverrideInfo actualObject,
out VisualElement shaderGUIOverrideField)
{
m_ShaderGUIOverrideInfo = actualObject;
var propertySheet = new PropertySheet();
shaderGUIOverrideField = null;
string storedValue = actualObject.ShaderGUIOverride;
string preferredGUI = GraphUtil.CurrentPipelinePreferredShaderGUI(m_MasterNode as IMasterNode);
var boolPropertyDrawer = new BoolPropertyDrawer();
propertySheet.Add(boolPropertyDrawer.CreateGUI(
newValue =>
{
m_ShaderGUIOverrideInfo.OverrideEnabled = newValue;
if (m_ShaderGUIOverrideInfo.OverrideEnabled)
{
// Display the pipeline's default upon activation, if it has one. Otherwise set up field to display user setting.
if (string.IsNullOrEmpty(storedValue) && !string.IsNullOrEmpty(preferredGUI))
{
ProcessShaderGUIField(preferredGUI);
}
else
{
ProcessShaderGUIField(storedValue);
}
}
valueChangedCallback(m_ShaderGUIOverrideInfo);
AddWarningIfNeeded(m_ShaderGUIOverrideInfo);
// Update the inspector after this value is changed as it needs to trigger a re-draw to expose the ShaderGUI text field
this.inspectorUpdateDelegate();
},
m_ShaderGUIOverrideInfo.OverrideEnabled,
"Override ShaderGUI",
out var boolKeywordField));
if (actualObject.OverrideEnabled)
{
var textPropertyDrawer = new TextPropertyDrawer();
propertySheet.Add(textPropertyDrawer.CreateGUI(
newValue =>
{
if (m_ShaderGUIOverrideInfo.ShaderGUIOverride == newValue)
{
return;
}
ProcessShaderGUIField(newValue);
valueChangedCallback(m_ShaderGUIOverrideInfo);
AddWarningIfNeeded(m_ShaderGUIOverrideInfo);
},
m_ShaderGUIOverrideInfo.ShaderGUIOverride,
"ShaderGUI",
out var propertyTextField
));
// Reset to default if the value is ever set to null and override is enabled
if (string.IsNullOrEmpty(storedValue))
{
m_ShaderGUIOverrideInfo.ShaderGUIOverride = preferredGUI;
}
var textField = (TextField)propertyTextField;
textField.value = m_ShaderGUIOverrideInfo.ShaderGUIOverride;
shaderGUIOverrideField = textField;
textField.isDelayed = true;
}
else
{
// Upon disable, set the value back to null (for pipeline switching reasons, among other reasons)
if (storedValue == preferredGUI)
{
m_ShaderGUIOverrideInfo.ShaderGUIOverride = null;
valueChangedCallback(m_ShaderGUIOverrideInfo);
AddWarningIfNeeded(m_ShaderGUIOverrideInfo);
}
}
propertySheet.styleSheets.Add(Resources.Load <StyleSheet>("Styles/PropertyRow"));
return(propertySheet);
}