Clément Foucault
f18067aa03
This modules handles renderpasses allocation and filling. Also handles blitting to viewport framebuffer and render result reading. Changes against the old implementation: - the filling of the renderpasses happens all at once requiring only 1 geometry pass. - The filtering is optimized with weights precomputed on CPU and reuse of neighboor pixels. - Only one accumulation buffer for renderpasses (no ping-pong). - Accumulation happens in one pass for every passes using a single dispatch or fullscreen triangle pass. TAA and history reprojection is not yet implemented. AOVs support is present but with a 16 AOV limit for now. Cryptomatte is not yet implemented.
130 lines
3.0 KiB
C++
130 lines
3.0 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2021 Blender Foundation. */
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#pragma once
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/** \file
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* \ingroup eevee
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*/
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#include "eevee_shader_shared.hh"
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namespace blender::eevee {
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class Instance;
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static const float cubeface_mat[6][4][4] = {
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/* Pos X */
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{{0.0f, 0.0f, -1.0f, 0.0f},
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{0.0f, -1.0f, 0.0f, 0.0f},
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{-1.0f, 0.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, 0.0f, 1.0f}},
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/* Neg X */
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{{0.0f, 0.0f, 1.0f, 0.0f},
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{0.0f, -1.0f, 0.0f, 0.0f},
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{1.0f, 0.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, 0.0f, 1.0f}},
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/* Pos Y */
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{{1.0f, 0.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, -1.0f, 0.0f},
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{0.0f, 1.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, 0.0f, 1.0f}},
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/* Neg Y */
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{{1.0f, 0.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, 1.0f, 0.0f},
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{0.0f, -1.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, 0.0f, 1.0f}},
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/* Pos Z */
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{{1.0f, 0.0f, 0.0f, 0.0f},
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{0.0f, -1.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, -1.0f, 0.0f},
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{0.0f, 0.0f, 0.0f, 1.0f}},
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/* Neg Z */
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{{-1.0f, 0.0f, 0.0f, 0.0f},
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{0.0f, -1.0f, 0.0f, 0.0f},
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{0.0f, 0.0f, 1.0f, 0.0f},
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{0.0f, 0.0f, 0.0f, 1.0f}},
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};
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inline void cubeface_winmat_get(float4x4 &winmat, float near, float far)
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{
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/* Simple 90° FOV projection. */
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perspective_m4(winmat.ptr(), -near, near, -near, near, near, far);
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}
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/* -------------------------------------------------------------------- */
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/** \name CameraData operators
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* \{ */
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inline bool operator==(const CameraData &a, const CameraData &b)
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{
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return compare_m4m4(a.persmat.ptr(), b.persmat.ptr(), FLT_MIN) && (a.uv_scale == b.uv_scale) &&
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(a.uv_bias == b.uv_bias) && (a.equirect_scale == b.equirect_scale) &&
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(a.equirect_bias == b.equirect_bias) && (a.fisheye_fov == b.fisheye_fov) &&
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(a.fisheye_lens == b.fisheye_lens) && (a.type == b.type);
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}
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inline bool operator!=(const CameraData &a, const CameraData &b)
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{
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return !(a == b);
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}
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/** \} */
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/* -------------------------------------------------------------------- */
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/** \name Camera
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* \{ */
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/**
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* Point of view in the scene. Can be init from viewport or camera object.
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*/
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class Camera {
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private:
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Instance &inst_;
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/** Double buffered to detect changes and have history for re-projection. */
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SwapChain<CameraDataBuf, 2> data_;
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/** Detects wrong usage. */
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bool synced_ = false;
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public:
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Camera(Instance &inst) : inst_(inst){};
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~Camera(){};
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void init();
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void sync();
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/**
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* Getters
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**/
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const CameraData &data_get() const
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{
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BLI_assert(synced_);
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return data_.current();
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}
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const GPUUniformBuf *ubo_get() const
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{
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return data_.current();
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}
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bool is_panoramic() const
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{
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return eevee::is_panoramic(data_.current().type);
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}
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bool is_orthographic() const
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{
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return data_.current().type == CAMERA_ORTHO;
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}
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const float3 &position() const
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{
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return *reinterpret_cast<const float3 *>(data_.current().viewinv[3]);
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}
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const float3 &forward() const
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{
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return *reinterpret_cast<const float3 *>(data_.current().viewinv[2]);
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}
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};
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/** \} */
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} // namespace blender::eevee
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