cbfb364c41
The AO baking procedure consists of the following steps: 1. Flatten the glTF hierarchy. 2. Generate a single 2D parameterization for the entire scene. 3. Embree Pass 1: Create G-Buffer using the above UVs as vert positions. 4. Embree Pass 2: Cast rays from the positions embedded in the G-Buffer. The `gltf_baker` tool is not ready for general use but already produces reasonable results for certain well-formed models.
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef RAYS_SIMPLEMESH_H
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#define RAYS_SIMPLEMESH_H
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#include <stddef.h>
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#include <stdint.h>
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namespace filament {
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namespace rays {
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/**
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* SimpleMesh is a description of triangle-based geometry intended for the path tracer.
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*
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* Holds weak references to client-side data that must stay alive for the duration of the render.
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* Indices and positions must always be present. Normals and uvs are only required when baking.
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*
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* Indices must be 32-bit. Positions, normals, and uvs must all be float3. Note that even the uv's
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* must be float3, so please pad with zeroes.
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*/
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struct SimpleMesh {
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size_t numVertices;
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size_t numIndices;
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const float* positions;
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size_t positionsStride;
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const uint32_t* indices;
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const float* normals;
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size_t normalsStride;
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const float* uvs;
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size_t uvsStride;
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};
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} // namespace rays
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} // namespace filament
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#endif // RAYS_SIMPLEMESH_H
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