common.h

/*
 * Copyright (c) 2014-2021, NVIDIA CORPORATION.  All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * SPDX-FileCopyrightText: Copyright (c) 2014-2021 NVIDIA CORPORATION
 * SPDX-License-Identifier: Apache-2.0
 */


#define VERTEX_POS    0
#define VERTEX_NORMAL 1
#define VERTEX_COLOR  2

#define UBO_SCENE     0

#define AO_RANDOMTEX_SIZE 4

#ifdef __cplusplus
namespace ssao
{
  using namespace glm;
#endif

struct SceneData {
  mat4  viewProjMatrix;
  mat4  viewMatrix;
  mat4  viewMatrixIT;
  
  uvec2 viewport;
  uvec2 _pad;
};

struct HBAOData {
  float   RadiusToScreen;        // radius
  float   R2;     // 1/radius
  float   NegInvR2;     // radius * radius
  float   NDotVBias;
 
  vec2    InvFullResolution;
  vec2    InvQuarterResolution;
  
  float   AOMultiplier;
  float   PowExponent;
  vec2    _pad0;
  
  vec4    projInfo;
  vec2    projScale;
  int     projOrtho;
  int     _pad1;
  
  vec4    float2Offsets[AO_RANDOMTEX_SIZE*AO_RANDOMTEX_SIZE];
  vec4    jitters[AO_RANDOMTEX_SIZE*AO_RANDOMTEX_SIZE];
};

#ifdef __cplusplus
}
#endif