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render/renderutils/c_src/bsdf.h

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+/*
+ * Copyright (c) 2020-2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ *
+ * NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
+ * property and proprietary rights in and to this material, related 
+ * documentation and any modifications thereto. Any use, reproduction, 
+ * disclosure or distribution of this material and related documentation
+ * without an express license agreement from NVIDIA CORPORATION or 
+ * its affiliates is strictly prohibited.
+ */
+
+#pragma once
+
+#include "common.h"
+
+struct LambertKernelParams
+{
+    Tensor  nrm;
+    Tensor  wi;
+    Tensor  out;
+    dim3    gridSize;
+};
+
+struct FrostbiteDiffuseKernelParams
+{
+    Tensor  nrm;
+    Tensor  wi;
+    Tensor  wo;
+    Tensor  linearRoughness;
+    Tensor  out;
+    dim3    gridSize;
+};
+
+struct FresnelShlickKernelParams
+{
+    Tensor  f0;
+    Tensor  f90;
+    Tensor  cosTheta;
+    Tensor  out;
+    dim3    gridSize;
+};
+
+struct NdfGGXParams
+{
+    Tensor  alphaSqr;
+    Tensor  cosTheta;
+    Tensor  out;
+    dim3    gridSize;
+};
+
+struct MaskingSmithParams
+{
+    Tensor  alphaSqr;
+    Tensor  cosThetaI;
+    Tensor  cosThetaO;
+    Tensor  out;
+    dim3    gridSize;
+};
+
+struct PbrSpecular
+{
+    Tensor  col;
+    Tensor  nrm;
+    Tensor  wo;
+    Tensor  wi;
+    Tensor  alpha;
+    Tensor  out;
+    dim3    gridSize;
+    float   min_roughness;
+};
+
+struct PbrBSDF
+{
+    Tensor  kd;
+    Tensor  arm;
+    Tensor  pos;
+    Tensor  nrm;
+    Tensor  view_pos;
+    Tensor  light_pos;
+    Tensor  out;
+    dim3    gridSize;
+    float   min_roughness;
+    int     BSDF;
+};