mapping_util.h

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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#pragma once
 
#include "kernel/svm/types.h"
 
#include "util/math.h"
#include "util/transform.h"
#include "util/types.h"
 
CCL_NAMESPACE_BEGIN
 
ccl_device float3 svm_mapping(NodeMappingType type,
                              const float3 vector,
                              const float3 location,
                              const float3 rotation,
                              const float3 scale)
{
  const Transform rotationTransform = euler_to_transform(rotation);
  switch (type) {
    case NODE_MAPPING_TYPE_POINT:
      return transform_direction(&rotationTransform, (vector * scale)) + location;
    case NODE_MAPPING_TYPE_TEXTURE:
      return safe_divide(transform_direction_transposed(&rotationTransform, (vector - location)),
                         scale);
    case NODE_MAPPING_TYPE_VECTOR:
      return transform_direction(&rotationTransform, (vector * scale));
    case NODE_MAPPING_TYPE_NORMAL:
      return safe_normalize(transform_direction(&rotationTransform, safe_divide(vector, scale)));
    default:
      return make_float3(0.0f, 0.0f, 0.0f);
  }
}
 
CCL_NAMESPACE_END