forked from BilalY/Rasagar
79 lines
3.0 KiB
C#
79 lines
3.0 KiB
C#
|
using System.IO;
|
||
|
|
using UnityEngine;
|
||
|
|
using UnityEditor;
|
||
|
|
using UnityEditor.ProjectWindowCallback;
|
||
|
|
|
||
|
|
namespace UnityEditor.Rendering.UnifiedRayTracing
|
||
|
|
{
|
||
|
|
internal class ShaderTemplates
|
||
|
|
{
|
||
|
|
// TODO: Uncomment when API is made public
|
||
|
|
//[MenuItem("Assets/Create/Shader/Unified RayTracing Shader", false, 1)]
|
||
|
|
internal static void CreateNewUnifiedRayTracingShader()
|
||
|
|
{
|
||
|
|
var action = ScriptableObject.CreateInstance<DoCreateUnifiedRayTracingShaders>();
|
||
|
|
ProjectWindowUtil.StartNameEditingIfProjectWindowExists(0, action, "NewRayTracingShader.hlsl", null, null);
|
||
|
|
}
|
||
|
|
|
||
|
|
internal static Object CreateScriptAssetWithContent(string pathName, string templateContent)
|
||
|
|
{
|
||
|
|
string fullPath = Path.GetFullPath(pathName);
|
||
|
|
File.WriteAllText(fullPath, templateContent);
|
||
|
|
AssetDatabase.ImportAsset(pathName);
|
||
|
|
return AssetDatabase.LoadAssetAtPath(pathName, typeof(Object));
|
||
|
|
}
|
||
|
|
|
||
|
|
internal class DoCreateUnifiedRayTracingShaders : EndNameEditAction
|
||
|
|
{
|
||
|
|
public override void Action(int instanceId, string pathName, string resourceFile)
|
||
|
|
{
|
||
|
|
var includeName = Path.GetFileNameWithoutExtension(pathName);
|
||
|
|
Object o = CreateScriptAssetWithContent(pathName, shaderContent);
|
||
|
|
CreateScriptAssetWithContent(Path.ChangeExtension(pathName, ".compute"), computeShaderContent.Replace("SHADERNAME", includeName));
|
||
|
|
CreateScriptAssetWithContent(Path.ChangeExtension(pathName, ".raytrace"), raytracingShaderContent.Replace("SHADERNAME", includeName));
|
||
|
|
ProjectWindowUtil.ShowCreatedAsset(o);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const string computeShaderContent =
|
||
|
|
@"#define UNIFIED_RT_BACKEND_COMPUTE
|
||
|
|
#define UNIFIED_RT_GROUP_SIZE_X 16
|
||
|
|
#define UNIFIED_RT_GROUP_SIZE_Y 8
|
||
|
|
#include ""SHADERNAME.hlsl""
|
||
|
|
#include_with_pragmas ""Packages/com.unity.rendering.light-transport/Runtime/UnifiedRayTracing/Compute/ComputeRaygenShader.hlsl""
|
||
|
|
";
|
||
|
|
|
||
|
|
const string raytracingShaderContent =
|
||
|
|
@"#define UNIFIED_RT_BACKEND_HARDWARE
|
||
|
|
#include ""SHADERNAME.hlsl""
|
||
|
|
#include_with_pragmas ""Packages/com.unity.rendering.light-transport/Runtime/UnifiedRayTracing/Hardware/HardwareRaygenShader.hlsl""
|
||
|
|
";
|
||
|
|
|
||
|
|
const string shaderContent =
|
||
|
|
@"#include ""Packages/com.unity.rendering.light-transport/Runtime/UnifiedRayTracing/FetchGeometry.hlsl""
|
||
|
|
#include ""Packages/com.unity.rendering.light-transport/Runtime/UnifiedRayTracing/TraceRay.hlsl""
|
||
|
|
|
||
|
|
UNIFIED_RT_DECLARE_ACCEL_STRUCT(_AccelStruct);
|
||
|
|
|
||
|
|
void RayGenExecute(UnifiedRT::DispatchInfo dispatchInfo)
|
||
|
|
{
|
||
|
|
// Example code:
|
||
|
|
UnifiedRT::Ray ray;
|
||
|
|
ray.origin = 0;
|
||
|
|
ray.direction = float3(0, 0, 1);
|
||
|
|
ray.tMin = 0;
|
||
|
|
ray.tMax = 1000.0f;
|
||
|
|
UnifiedRT::RayTracingAccelStruct accelStruct = UNIFIED_RT_GET_ACCEL_STRUCT(_AccelStruct);
|
||
|
|
UnifiedRT::Hit hitResult = UnifiedRT::TraceRayClosestHit(dispatchInfo, accelStruct, 0xFFFFFFFF, ray, 0);
|
||
|
|
if (hitResult.IsValid())
|
||
|
|
{
|
||
|
|
UnifiedRT::HitGeomAttributes attributes = UnifiedRT::FetchHitGeomAttributes(accelStruct, hitResult);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|