/// <summary>
/// Get a shader stages data to match the passed material if one exisits in the cache otherwise create a new one
/// </summary>
/// <param name="shaderResources"></param>
/// <param name="customDefines"></param>
/// <param name="specializationContants"></param>
/// <returns></returns>
public static ShaderStagesInfo GetOrCreateShaderStagesInfo(ShaderResource[] shaderResources, string customDefines, int[] specializationContants)
{
List <ShaderStageInfo> stages = new List <ShaderStageInfo>();
foreach (ShaderResource shaderResource in shaderResources)
{
stages.Add(GetOrCreateShaderStageInfo(shaderResource, customDefines, specializationContants));
}
ShaderStagesInfo shaderStages = new ShaderStagesInfo
{
stages = stages.ToArray(),
stagesCount = stages.Count
};
// see if we have one that matches
foreach (int idkey in _shaderStagesInfoCache.Keys)
{
ShaderStagesInfo ssd = _shaderStagesInfoCache[idkey];
if (ssd.Equals(shaderStages))
{
return(ssd);
}
}
// must be new
shaderStages.id = _shaderStagesInfoCache.Count;
_shaderStagesInfoCache[shaderStages.id] = shaderStages;
return(shaderStages);
}
private static void ExportTerrainMesh(Terrain terrain, ExportSettings settings, List <PipelineData> storePipelines = null)
{
TerrainConverter.TerrainInfo terrainInfo = TerrainConverter.CreateTerrainInfo(terrain, settings);
if (terrainInfo == null || ((terrainInfo.diffuseTextureDatas.Count == 0 || terrainInfo.maskTextureDatas.Count == 0) && terrainInfo.customMaterial == null))
{
return;
}
// add stategroup and pipeline for shader
GraphBuilderInterface.unity2vsg_AddStateGroupNode();
PipelineData pipelineData = new PipelineData();
pipelineData.hasNormals = 1;
pipelineData.uvChannelCount = 1;
pipelineData.useAlpha = 0;
if (terrainInfo.customMaterial == null)
{
pipelineData.descriptorBindings = NativeUtils.WrapArray(terrainInfo.descriptorBindings.ToArray());
ShaderStagesInfo shaderStagesInfo = MaterialConverter.GetOrCreateShaderStagesInfo(terrainInfo.shaderMapping.shaders.ToArray(), string.Join(",", terrainInfo.shaderDefines.ToArray()), terrainInfo.shaderConsts.ToArray());
pipelineData.shaderStages = shaderStagesInfo.ToNative();
pipelineData.id = NativeUtils.ToNative(NativeUtils.GetIDForPipeline(pipelineData));
storePipelines.Add(pipelineData);
if (GraphBuilderInterface.unity2vsg_AddBindGraphicsPipelineCommand(pipelineData, 1) == 1)
{
if (terrainInfo.diffuseTextureDatas.Count > 0)
{
DescriptorImageData layerDiffuseTextureArray = MaterialConverter.GetOrCreateDescriptorImageData(terrainInfo.diffuseTextureDatas.ToArray(), 0);
GraphBuilderInterface.unity2vsg_AddDescriptorImage(layerDiffuseTextureArray);
}
if (terrainInfo.diffuseScales.Count > 0)
{
DescriptorVectorArrayUniformData scalesDescriptor = new DescriptorVectorArrayUniformData();
scalesDescriptor.binding = 2;
scalesDescriptor.value = NativeUtils.WrapArray(terrainInfo.diffuseScales.ToArray());
GraphBuilderInterface.unity2vsg_AddDescriptorBufferVectorArray(scalesDescriptor);
}
DescriptorVectorUniformData sizeDescriptor = new DescriptorVectorUniformData();
sizeDescriptor.binding = 3;
sizeDescriptor.value = NativeUtils.ToNative(terrainInfo.terrainSize);
GraphBuilderInterface.unity2vsg_AddDescriptorBufferVector(sizeDescriptor);
if (terrainInfo.maskTextureDatas.Count > 0)
{
DescriptorImageData layerMaskTextureArray = MaterialConverter.GetOrCreateDescriptorImageData(terrainInfo.maskTextureDatas.ToArray(), 1);
GraphBuilderInterface.unity2vsg_AddDescriptorImage(layerMaskTextureArray);
}
GraphBuilderInterface.unity2vsg_CreateBindDescriptorSetCommand(1);
GraphBuilderInterface.unity2vsg_AddVertexIndexDrawNode(MeshConverter.GetOrCreateVertexIndexDrawData(terrainInfo.terrainMesh));
GraphBuilderInterface.unity2vsg_EndNode(); // step out of vertex index draw node
}
}
else
{
pipelineData.descriptorBindings = NativeUtils.WrapArray(terrainInfo.customMaterial.descriptorBindings.ToArray());
pipelineData.shaderStages = terrainInfo.customMaterial.shaderStages.ToNative();
pipelineData.id = NativeUtils.ToNative(NativeUtils.GetIDForPipeline(pipelineData));
storePipelines.Add(pipelineData);
if (GraphBuilderInterface.unity2vsg_AddBindGraphicsPipelineCommand(pipelineData, 1) == 1)
{
BindDescriptors(terrainInfo.customMaterial, true);
GraphBuilderInterface.unity2vsg_AddVertexIndexDrawNode(MeshConverter.GetOrCreateVertexIndexDrawData(terrainInfo.terrainMesh));
GraphBuilderInterface.unity2vsg_EndNode(); // step out of vertex index draw node
}
}
GraphBuilderInterface.unity2vsg_EndNode(); // step out of stategroup node
}