import Common;
import MaterialParameter;
import LightEnv;
import Scene;
import RayTracingData;

// simplification: all BLAS only have 1 geometry

[shader("closesthit")]
void closestHit(inout RayPayload hitValue, in BuiltInTriangleIntersectionAttributes attr)
{
    //const float3 barycentricCoords = float3(1.0f - attr.barycentrics.x - attr.barycentrics.y, attr.barycentrics.x, attr.barycentrics.y);

    //InstanceData inst = pScene.instances[InstanceID()];
    //MeshData m = pScene.meshData[InstanceID()];
//
    //// offset into the index buffer
    //uint indexOffset = m.firstIndex;
    //// added to indices to reference correct part of global mesh pool
    //uint vertexOffset = pScene.meshletInfos[m.meshletOffset].indicesOffset;
//
    //uint vertexIndex0 = vertexOffset + pRayTracingParams.indexBuffer[indexOffset + 3 * PrimitiveIndex() + 0];
    //uint vertexIndex1 = vertexOffset + pRayTracingParams.indexBuffer[indexOffset + 3 * PrimitiveIndex() + 1];
    //uint vertexIndex2 = vertexOffset + pRayTracingParams.indexBuffer[indexOffset + 3 * PrimitiveIndex() + 2];
//
    //VertexAttributes attr0 = pVertexData.getAttributes(vertexIndex0);
    //VertexAttributes attr1 = pVertexData.getAttributes(vertexIndex1);
    //VertexAttributes attr2 = pVertexData.getAttributes(vertexIndex2);
//
    //FragmentParameter f0 = attr0.getParameter(inst.transformMatrix);
    //FragmentParameter f1 = attr1.getParameter(inst.transformMatrix);
    //FragmentParameter f2 = attr2.getParameter(inst.transformMatrix);
//
    //FragmentParameter params = FragmentParameter.interpolate(f0, f1, f2, barycentricCoords);
//
    //CallablePayload callable;
    //callable.params = params;
//
    //CallShader(InstanceID(), callable);

    hitValue.color = float3(1, 0, 0);
}