public override List <Port> GetCompatiblePorts(Port startAnchor, NodeAdapter nodeAdapter)
{
var compatibleAnchors = new List <Port>();
var startSlot = startAnchor.GetSlot();
if (startSlot == null)
{
return(compatibleAnchors);
}
var startStage = startSlot.shaderStage;
if (startStage == ShaderStage.Dynamic)
{
startStage = NodeUtils.FindEffectiveShaderStage(startSlot.owner, startSlot.isOutputSlot);
}
foreach (var candidateAnchor in ports.ToList())
{
var candidateSlot = candidateAnchor.GetSlot();
if (!startSlot.IsCompatibleWith(candidateSlot))
{
continue;
}
if (startStage != ShaderStage.Dynamic)
{
var candidateStage = candidateSlot.shaderStage;
if (candidateStage == ShaderStage.Dynamic)
{
candidateStage = NodeUtils.FindEffectiveShaderStage(candidateSlot.owner, !startSlot.isOutputSlot);
}
if (candidateStage != ShaderStage.Dynamic && candidateStage != startStage)
{
continue;
}
}
compatibleAnchors.Add(candidateAnchor);
}
return(compatibleAnchors);
}
void UpdateShader(Identifier nodeId)
{
var node = m_Graph.GetNodeFromTempId(nodeId) as AbstractMaterialNode;
if (node == null)
{
return;
}
var renderData = Get(m_RenderDatas, nodeId);
if (renderData == null || renderData.shaderData == null)
{
return;
}
var shaderData = renderData.shaderData;
if (!(node is IMasterNode) && (!node.hasPreview || NodeUtils.FindEffectiveShaderStage(node, true) == ShaderStage.Vertex))
{
shaderData.shaderString = null;
}
else
{
var masterNode = node as IMasterNode;
if (masterNode != null)
{
List <PropertyCollector.TextureInfo> configuredTextures;
shaderData.shaderString = masterNode.GetShader(GenerationMode.Preview, node.name, out configuredTextures);
}
else
{
shaderData.shaderString = m_Graph.GetPreviewShader(node).shader;
}
}
#if UNITY_SHADER_GRAPH_DEVMODE
File.WriteAllText(Application.dataPath + "/../GeneratedShader.shader", (shaderData.shaderString ?? "null").Replace("UnityEngine.MaterialGraph", "Generated"));
#endif
if (string.IsNullOrEmpty(shaderData.shaderString))
{
if (shaderData.shader != null)
{
ShaderUtil.ClearShaderErrors(shaderData.shader);
Object.DestroyImmediate(shaderData.shader, true);
shaderData.shader = null;
}
return;
}
if (shaderData.shader == null)
{
shaderData.shader = ShaderUtil.CreateShaderAsset(shaderData.shaderString);
shaderData.shader.hideFlags = HideFlags.HideAndDontSave;
}
else
{
ShaderUtil.ClearShaderErrors(shaderData.shader);
ShaderUtil.UpdateShaderAsset(shaderData.shader, shaderData.shaderString);
}
// Debug output
#if UNITY_SHADER_GRAPH_DEVMODE
var message = "RecreateShader: " + node.GetVariableNameForNode() + Environment.NewLine + shaderData.shaderString;
#endif
if (MaterialGraphAsset.ShaderHasError(shaderData.shader))
{
shaderData.hasError = true;
Debug.LogWarning(message);
ShaderUtil.ClearShaderErrors(shaderData.shader);
Object.DestroyImmediate(shaderData.shader, true);
shaderData.shader = null;
}
else
{
shaderData.hasError = false;
}
}