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redflash's Introduction

Redflash Renderer

pr33_v6_t3000_s1030_1920x1080

Redflash is a physics-based GPU renderer based on Path Tracing implemented in NVIDIA® OptiX 6.0, which can consistently draw scenes with mixed Polygons and Raymarching.

Redflash は NVIDIA® OptiX 6.0 上で実装したパストレーシングによる物理ベースのGPUレンダラーで、ポリゴンと レイマーチング が混在したシーンを一貫して描画できます。

Note

This is implemented based on optixPathTracer of NVIDIA official OptiX-Samples.

これは、NVIDIA 公式の OptiX-Samples の optixPathTracer をベースにして実装されています。

The actual implementation is in the redflash directory.

実際の実装は redflash ディレクトリ内にあります。

Features

  • Unidirectional Path Tracing
    • Next Event Estimation (Direct Light Sampling)
    • Multiple Importance Sampling
  • Disney BRDF
  • Primitives
    • Sphere
    • Mesh
    • Distance Function ( Raymarching )
  • ACES Filmic Tone Mapping
  • Deep Learning Denoising

Development Environment

  • Operation confirmed
    • Windows 10 + NVIDIA RTX 2070
    • Windows Server 2016 Base + NVIDIA Tesla V100 GPUs
  • Dependences
    • CUDA 10.1
    • OptiX 6.0.0
    • Cmake 3.8.2
    • freeglut

Gallery

RaytracingCamp7 Submission Version / レイトレ合宿7 提出バージョン

Won 4th prize at レイトレ合宿7.

pr33_v6_t3000_s1030_1920x1080

Camera Angle Variation 1

cut_far_v1

Camera Angle Variation 2

cut_far_v2

Camera Angle Variation 3

cut_far_v3

Links

redflash's People

Contributors

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Stargazers

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Watchers

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Forkers

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redflash's Issues

時間切れ判定の制御

  • #33 で p3.2xlarge
  • .\redflash.exe -f output.png -W 3840 -H 2160 -t 54 -A 1.0 -S 4 --denoise_mode 2 > output.txt

NG

[info] resolution: 3840x2160 px
[info] time_limit: 54 sec.
[info] sample_per_launch: 4
[info] auto_set_sample_per_launch: 1
[info] auto_set_sample_per_launch_scale: 1
[info] sample: INF(20)
loop:0	sample_per_launch	:4	delta_time:4.45207e-07	delta_time_per_sample:1.11302e-07	used_time:10.469	remain_time:43.531	sample:0	frame_number:1
loop:1	sample_per_launch	:4	delta_time:6.31536	delta_time_per_sample:1.57884	used_time:16.7843	remain_time:37.2157	sample:4	frame_number:2
[info] chnage sample_per_launch: 23 to 23
loop:2	sample_per_launch	:23	delta_time:25.1935	delta_time_per_sample:1.09537	used_time:41.9778	remain_time:12.0222	sample:27	frame_number:3
[info] chnage sample_per_launch: 23 to 1
loop:3	sample_per_launch	:1	delta_time:1.18293	delta_time_per_sample:1.18293	used_time:43.1608	remain_time:10.8392	sample:28	frame_number:4
loop:4	sample_per_launch	:1	delta_time:1.26605	delta_time_per_sample:1.26605	used_time:44.4268	remain_time:9.5732	sample:29	frame_number:5
loop:5	sample_per_launch	:1	delta_time:1.23446	delta_time_per_sample:1.23446	used_time:45.6613	remain_time:8.33873	sample:30	frame_number:6
loop:6	sample_per_launch	:1	delta_time:1.28691	delta_time_per_sample:1.28691	used_time:46.9482	remain_time:7.05182	sample:31	frame_number:7
loop:7	sample_per_launch	:1	delta_time:1.27338	delta_time_per_sample:1.27338	used_time:48.2216	remain_time:5.77844	sample:32	frame_number:8
loop:8	sample_per_launch	:1	delta_time:1.26999	delta_time_per_sample:1.26999	used_time:49.4916	remain_time:4.50845	sample:33	frame_number:9
loop:9	sample_per_launch	:1	delta_time:1.26634	delta_time_per_sample:1.26634	used_time:50.7579	remain_time:3.24211	sample:34	frame_number:10
loop:10	sample_per_launch	:1	delta_time:1.24969	delta_time_per_sample:1.24969	used_time:52.0076	remain_time:1.99242	sample:35	frame_number:11
loop:11	sample_per_launch	:1	delta_time:1.26821	delta_time_per_sample:1.26821	used_time:53.2758	remain_time:0.724212	sample:36	frame_number:12
[info] reached time limit! used_time: 53.2758 sec. remain_time: 0.724212 sec.
[info] total_time: 60.1268 sec.
[info] total_sample: 37

OK

[info] resolution: 3840x2160 px
[info] time_limit: 54 sec.
[info] sample_per_launch: 4
[info] auto_set_sample_per_launch: 1
[info] auto_set_sample_per_launch_scale: 1
[info] sample: INF(20)
loop:0	sample_per_launch	:4	delta_time:0	delta_time_per_sample:0	used_time:2.89023	remain_time:51.1098	sample:0	frame_number:1
loop:1	sample_per_launch	:4	delta_time:4.87218	delta_time_per_sample:1.21805	used_time:7.76242	remain_time:46.2376	sample:4	frame_number:2
[info] chnage sample_per_launch: 37 to 37
loop:2	sample_per_launch	:37	delta_time:40.0949	delta_time_per_sample:1.08364	used_time:47.8573	remain_time:6.14272	sample:41	frame_number:3
[info] chnage sample_per_launch: 37 to 1
loop:3	sample_per_launch	:1	delta_time:1.27524	delta_time_per_sample:1.27524	used_time:49.1325	remain_time:4.86748	sample:42	frame_number:4
loop:4	sample_per_launch	:1	delta_time:1.26723	delta_time_per_sample:1.26723	used_time:50.3997	remain_time:3.60025	sample:43	frame_number:5
loop:5	sample_per_launch	:1	delta_time:1.25397	delta_time_per_sample:1.25397	used_time:51.6537	remain_time:2.34629	sample:44	frame_number:6
loop:6	sample_per_launch	:1	delta_time:1.24936	delta_time_per_sample:1.24936	used_time:52.9031	remain_time:1.09693	sample:45	frame_number:7
[info] reached time limit! used_time: 52.9031 sec. remain_time: 1.09693 sec.
[info] total_time: 58.9922 sec.
[info] total_sample: 46

レイトレ合宿7

https://sites.google.com/site/raytracingcamp7/

レンダリング部門の仕様
60秒以内に自動で終了し、終了時にレンダリング画像をpngで出力してください。

TODO

レイトレ合宿7のスライド

  • ファイル作成
  • 基本機能の紹介(BSDF, NEE, MIS)
  • レイマーチングは重いので、どう高速化したか
    • 衝突したかの判定の閾値のepsのLOD（カメラに近いほど細かく判定）
    • sample_per_launch
    • 距離関数のチューニング
  • 画像などを本番のものに差し替え

TODO

  • マルチGPU環境への対応 #40
  • DOF
  • imgui導入
  • CallableProgramID によるリファクタリング
    • BSDF / BTDF #41
    • ライトサンプリング
    • 距離関数
  • カメラを動かし始めた1フレーム目は低解像度にする
  • redflash.cpp の分割
  • シーン編集機能

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