Report generated 2026-09-23

Image set: data/report-hdr/report-hdr.cfg (27 images)

CPU: Intel(R) Xeon(R) W-2133 CPU @ 3.60GHz, using 12 threads

GPU: NVIDIA GeForce RTX 2070 SUPER

Arguments: -test config/tests/hlsl_bc6h_rgb.txt -time -ssimu2 -flip -png

Summary

Compressor	WMRSSE↓	FLIP↓	SSIMU2↑	TIME (ms)↓	Mpx/s↑
Spark: bc6h_rgb q1 (HLSL)	0.4662	0.0168	88.5656	0.0698	24161.58
Spark: bc6h_rgb q2 (HLSL)	0.4488	0.0163	89.1872	0.2488	6782.63
Spark: bc6h_rgb q3 (HLSL)	0.4296	0.0147	90.5172	0.8432	2001.23
Knarcovicz: bc6h_rgb q0 (HLSL)	0.7821	0.0310	76.1567	0.0324	52009.22
Knarcovicz: bc6h_rgb q1 (HLSL)	0.5940	0.0244	80.2526	0.0419	40246.47
Knarcovicz: bc6h_rgb q2 (HLSL)	0.5055	0.0218	85.2034	0.6013	2806.45
Tellusim: bc6h_rgb q0 (HLSL)	0.6151	0.0205	83.8725	1.1016	1531.83

WMRSSE Scores

Original	Spark: bc6h_rgb q1 (HLSL)	Spark: bc6h_rgb q2 (HLSL)	Spark: bc6h_rgb q3 (HLSL)	Knarcovicz: bc6h_rgb q0 (HLSL)	Knarcovicz: bc6h_rgb q1 (HLSL)	Knarcovicz: bc6h_rgb q2 (HLSL)	Tellusim: bc6h_rgb q0 (HLSL)
bakery_sponza_test_01	WMRSSE = 0.945	WMRSSE = 0.943	WMRSSE = 0.705	WMRSSE = 1.163	WMRSSE = 0.945	WMRSSE = 1.029	WMRSSE = 0.869
bakery_sponza_test_02	WMRSSE = 0.985	WMRSSE = 1.001	WMRSSE = 0.805	WMRSSE = 1.277	WMRSSE = 1.154	WMRSSE = 1.247	WMRSSE = 2.704
bakery_sponza_test_03	WMRSSE = 0.285	WMRSSE = 0.221	WMRSSE = 0.207	WMRSSE = 0.570	WMRSSE = 0.396	WMRSSE = 0.260	WMRSSE = 0.862
bakery_sponza_test_04	WMRSSE = 5.162	WMRSSE = 5.159	WMRSSE = 5.075	WMRSSE = 6.917	WMRSSE = 5.101	WMRSSE = 5.082	WMRSSE = 5.251
blue_bar	WMRSSE = 0.392	WMRSSE = 0.374	WMRSSE = 0.417	WMRSSE = 0.913	WMRSSE = 0.656	WMRSSE = 0.413	WMRSSE = 0.546
chinese_garden_01	WMRSSE = 0.382	WMRSSE = 0.359	WMRSSE = 0.351	WMRSSE = 0.991	WMRSSE = 0.697	WMRSSE = 0.487	WMRSSE = 0.644
chinese_garden_02	WMRSSE = 0.113	WMRSSE = 0.110	WMRSSE = 0.106	WMRSSE = 0.260	WMRSSE = 0.177	WMRSSE = 0.144	WMRSSE = 0.170
empty_play_room	WMRSSE = 0.123	WMRSSE = 0.106	WMRSSE = 0.103	WMRSSE = 0.211	WMRSSE = 0.166	WMRSSE = 0.134	WMRSSE = 0.145
hangar_interior	WMRSSE = 0.399	WMRSSE = 0.297	WMRSSE = 0.290	WMRSSE = 0.626	WMRSSE = 0.486	WMRSSE = 0.295	WMRSSE = 0.452
hangar_interior_02	WMRSSE = 0.169	WMRSSE = 0.158	WMRSSE = 0.155	WMRSSE = 0.288	WMRSSE = 0.221	WMRSSE = 0.186	WMRSSE = 0.203
industrial_workshop_foundry_01	WMRSSE = 0.184	WMRSSE = 0.175	WMRSSE = 0.147	WMRSSE = 0.372	WMRSSE = 0.263	WMRSSE = 0.186	WMRSSE = 0.365
lightsaber	WMRSSE = 0.094	WMRSSE = 0.074	WMRSSE = 0.066	WMRSSE = 0.860	WMRSSE = 0.509	WMRSSE = 0.260	WMRSSE = 0.125
little_paris_eiffel_tower_01	WMRSSE = 0.395	WMRSSE = 0.396	WMRSSE = 0.411	WMRSSE = 0.825	WMRSSE = 0.618	WMRSSE = 0.536	WMRSSE = 0.577
matas	WMRSSE = 0.718	WMRSSE = 0.713	WMRSSE = 0.715	WMRSSE = 0.849	WMRSSE = 0.786	WMRSSE = 0.735	WMRSSE = 0.758
maxon_aixtr_disp_01	WMRSSE = 0.001	WMRSSE = 0.001	WMRSSE = 0.001	WMRSSE = 0.005	WMRSSE = 0.004	WMRSSE = 0.007	WMRSSE = 0.001
maxon_aixtr_disp_02	WMRSSE = 0.003	WMRSSE = 0.003	WMRSSE = 0.002	WMRSSE = 0.006	WMRSSE = 0.006	WMRSSE = 0.008	WMRSSE = 0.002
memorial_01	WMRSSE = 0.516	WMRSSE = 0.449	WMRSSE = 0.461	WMRSSE = 0.823	WMRSSE = 0.658	WMRSSE = 0.491	WMRSSE = 0.625
moonless_golf_01	WMRSSE = 0.083	WMRSSE = 0.082	WMRSSE = 0.075	WMRSSE = 0.154	WMRSSE = 0.114	WMRSSE = 0.095	WMRSSE = 0.112
NightEnvironment_01	WMRSSE = 0.320	WMRSSE = 0.318	WMRSSE = 0.352	WMRSSE = 0.576	WMRSSE = 0.452	WMRSSE = 0.317	WMRSSE = 0.394
rainforest_trail_01	WMRSSE = 0.490	WMRSSE = 0.515	WMRSSE = 0.516	WMRSSE = 1.178	WMRSSE = 0.896	WMRSSE = 0.800	WMRSSE = 0.777
sevilla01	WMRSSE = 0.163	WMRSSE = 0.143	WMRSSE = 0.160	WMRSSE = 0.507	WMRSSE = 0.297	WMRSSE = 0.186	WMRSSE = 0.226
sevilla02	WMRSSE = 0.022	WMRSSE = 0.021	WMRSSE = 0.020	WMRSSE = 0.271	WMRSSE = 0.404	WMRSSE = 0.112	WMRSSE = 0.026
sevilla03	WMRSSE = 0.066	WMRSSE = 0.048	WMRSSE = 0.047	WMRSSE = 0.265	WMRSSE = 0.173	WMRSSE = 0.082	WMRSSE = 0.083
sunflowers_puresky_01	WMRSSE = 0.011	WMRSSE = 0.010	WMRSSE = 0.008	WMRSSE = 0.019	WMRSSE = 0.015	WMRSSE = 0.017	WMRSSE = 0.011
the_sky_is_on_fire_01	WMRSSE = 0.083	WMRSSE = 0.074	WMRSSE = 0.077	WMRSSE = 0.207	WMRSSE = 0.147	WMRSSE = 0.115	WMRSSE = 0.105
vestibule_01	WMRSSE = 0.248	WMRSSE = 0.182	WMRSSE = 0.150	WMRSSE = 0.557	WMRSSE = 0.394	WMRSSE = 0.199	WMRSSE = 0.291
warm_restaurant_01	WMRSSE = 0.236	WMRSSE = 0.184	WMRSSE = 0.179	WMRSSE = 0.426	WMRSSE = 0.303	WMRSSE = 0.226	WMRSSE = 0.285

FLIP Scores

Original	Spark: bc6h_rgb q1 (HLSL)	Spark: bc6h_rgb q2 (HLSL)	Spark: bc6h_rgb q3 (HLSL)	Knarcovicz: bc6h_rgb q0 (HLSL)	Knarcovicz: bc6h_rgb q1 (HLSL)	Knarcovicz: bc6h_rgb q2 (HLSL)	Tellusim: bc6h_rgb q0 (HLSL)
bakery_sponza_test_01	Score = 0.010	Score = 0.009	Score = 0.008	Score = 0.013	Score = 0.011	Score = 0.013	Score = 0.009
bakery_sponza_test_02	Score = 0.008	Score = 0.008	Score = 0.006	Score = 0.011	Score = 0.010	Score = 0.011	Score = 0.008
bakery_sponza_test_03	Score = 0.015	Score = 0.013	Score = 0.011	Score = 0.025	Score = 0.019	Score = 0.017	Score = 0.016
bakery_sponza_test_04	Score = 0.021	Score = 0.020	Score = 0.019	Score = 0.024	Score = 0.024	Score = 0.024	Score = 0.023
blue_bar	Score = 0.017	Score = 0.016	Score = 0.017	Score = 0.036	Score = 0.027	Score = 0.021	Score = 0.022
chinese_garden_01	Score = 0.028	Score = 0.028	Score = 0.024	Score = 0.058	Score = 0.042	Score = 0.037	Score = 0.037
chinese_garden_02	Score = 0.014	Score = 0.014	Score = 0.012	Score = 0.027	Score = 0.019	Score = 0.018	Score = 0.017
empty_play_room	Score = 0.018	Score = 0.018	Score = 0.016	Score = 0.033	Score = 0.026	Score = 0.023	Score = 0.022
hangar_interior	Score = 0.023	Score = 0.022	Score = 0.021	Score = 0.041	Score = 0.031	Score = 0.028	Score = 0.029
hangar_interior_02	Score = 0.021	Score = 0.020	Score = 0.019	Score = 0.038	Score = 0.027	Score = 0.025	Score = 0.025
industrial_workshop_foundry_01	Score = 0.025	Score = 0.025	Score = 0.020	Score = 0.044	Score = 0.040	Score = 0.030	Score = 0.032
lightsaber	Score = 0.012	Score = 0.011	Score = 0.010	Score = 0.026	Score = 0.021	Score = 0.017	Score = 0.014
little_paris_eiffel_tower_01	Score = 0.015	Score = 0.016	Score = 0.016	Score = 0.031	Score = 0.024	Score = 0.022	Score = 0.023
matas	Score = 0.018	Score = 0.018	Score = 0.016	Score = 0.029	Score = 0.024	Score = 0.021	Score = 0.022
maxon_aixtr_disp_01	Score = 0.005	Score = 0.005	Score = 0.004	Score = 0.010	Score = 0.010	Score = 0.011	Score = 0.004
maxon_aixtr_disp_02	Score = 0.006	Score = 0.006	Score = 0.006	Score = 0.010	Score = 0.009	Score = 0.010	Score = 0.006
memorial_01	Score = 0.023	Score = 0.022	Score = 0.021	Score = 0.042	Score = 0.035	Score = 0.028	Score = 0.031
moonless_golf_01	Score = 0.012	Score = 0.012	Score = 0.011	Score = 0.019	Score = 0.016	Score = 0.015	Score = 0.014
NightEnvironment_01	Score = 0.005	Score = 0.005	Score = 0.005	Score = 0.008	Score = 0.007	Score = 0.006	Score = 0.006
rainforest_trail_01	Score = 0.041	Score = 0.041	Score = 0.043	Score = 0.080	Score = 0.058	Score = 0.051	Score = 0.061
sevilla01	Score = 0.014	Score = 0.013	Score = 0.011	Score = 0.026	Score = 0.020	Score = 0.018	Score = 0.016
sevilla02	Score = 0.008	Score = 0.008	Score = 0.005	Score = 0.020	Score = 0.017	Score = 0.016	Score = 0.007
sevilla03	Score = 0.014	Score = 0.013	Score = 0.010	Score = 0.028	Score = 0.022	Score = 0.021	Score = 0.013
sunflowers_puresky_01	Score = 0.015	Score = 0.014	Score = 0.012	Score = 0.022	Score = 0.019	Score = 0.019	Score = 0.015
the_sky_is_on_fire_01	Score = 0.019	Score = 0.018	Score = 0.016	Score = 0.037	Score = 0.028	Score = 0.024	Score = 0.024
vestibule_01	Score = 0.025	Score = 0.024	Score = 0.020	Score = 0.056	Score = 0.040	Score = 0.032	Score = 0.030
warm_restaurant_01	Score = 0.023	Score = 0.021	Score = 0.019	Score = 0.045	Score = 0.032	Score = 0.028	Score = 0.028

SSIMULACRA2 Scores

Original	Spark: bc6h_rgb q1 (HLSL)	Spark: bc6h_rgb q2 (HLSL)	Spark: bc6h_rgb q3 (HLSL)	Knarcovicz: bc6h_rgb q0 (HLSL)	Knarcovicz: bc6h_rgb q1 (HLSL)	Knarcovicz: bc6h_rgb q2 (HLSL)	Tellusim: bc6h_rgb q0 (HLSL)
bakery_sponza_test_01	Score = 93.506	Score = 93.634	Score = 94.299	Score = 91.875	Score = 92.223	Score = 92.358	Score = 94.455
bakery_sponza_test_02	Score = 93.922	Score = 94.052	Score = 94.624	Score = 92.393	Score = 92.569	Score = 92.231	Score = 94.407
bakery_sponza_test_03	Score = 83.835	Score = 87.442	Score = 88.801	Score = 69.028	Score = 76.674	Score = 87.770	Score = 82.322
bakery_sponza_test_04	Score = 58.075	Score = 58.098	Score = 57.929	Score = 55.508	Score = 57.052	Score = 56.690	Score = 56.995
blue_bar	Score = 90.757	Score = 91.443	Score = 90.507	Score = 75.343	Score = 76.018	Score = 86.894	Score = 85.758
chinese_garden_01	Score = 77.966	Score = 81.299	Score = 87.518	Score = 39.516	Score = 63.574	Score = 72.794	Score = 70.604
chinese_garden_02	Score = 92.503	Score = 91.823	Score = 92.500	Score = 79.556	Score = 87.822	Score = 89.476	Score = 87.961
empty_play_room	Score = 92.726	Score = 92.682	Score = 92.968	Score = 84.375	Score = 87.888	Score = 90.320	Score = 88.963
hangar_interior	Score = 87.418	Score = 88.501	Score = 88.824	Score = 76.012	Score = 78.698	Score = 85.784	Score = 82.157
hangar_interior_02	Score = 91.740	Score = 91.168	Score = 91.818	Score = 81.340	Score = 86.987	Score = 88.493	Score = 88.180
industrial_workshop_foundry_01	Score = 85.531	Score = 85.571	Score = 89.600	Score = 75.781	Score = 74.219	Score = 83.881	Score = 76.112
lightsaber	Score = 87.128	Score = 88.651	Score = 91.711	Score = 54.311	Score = 67.221	Score = 78.653	Score = 84.442
little_paris_eiffel_tower_01	Score = 92.176	Score = 92.036	Score = 91.928	Score = 80.295	Score = 86.961	Score = 87.447	Score = 73.801
matas	Score = 85.900	Score = 86.524	Score = 87.949	Score = 78.634	Score = 81.459	Score = 84.776	Score = 82.413
maxon_aixtr_disp_01	Score = 96.667	Score = 96.677	Score = 97.070	Score = 93.017	Score = 93.073	Score = 92.762	Score = 97.077
maxon_aixtr_disp_02	Score = 96.255	Score = 96.263	Score = 96.519	Score = 93.452	Score = 93.518	Score = 93.336	Score = 96.519
memorial_01	Score = 81.529	Score = 82.355	Score = 87.082	Score = 72.517	Score = 73.478	Score = 82.386	Score = 72.976
moonless_golf_01	Score = 88.795	Score = 88.929	Score = 91.271	Score = 76.248	Score = 82.881	Score = 86.373	Score = 82.459
NightEnvironment_01	Score = 93.283	Score = 93.307	Score = 93.982	Score = 89.390	Score = 91.210	Score = 92.379	Score = 92.583
rainforest_trail_01	Score = 89.954	Score = 89.787	Score = 88.914	Score = 73.030	Score = 82.497	Score = 85.122	Score = 80.191
sevilla01	Score = 89.378	Score = 91.121	Score = 91.080	Score = 76.761	Score = 80.971	Score = 83.701	Score = 86.598
sevilla02	Score = 91.673	Score = 91.961	Score = 93.824	Score = 62.427	Score = 66.682	Score = 80.225	Score = 87.941
sevilla03	Score = 88.264	Score = 90.258	Score = 91.272	Score = 69.611	Score = 70.284	Score = 77.484	Score = 86.158
sunflowers_puresky_01	Score = 95.043	Score = 95.367	Score = 96.142	Score = 91.925	Score = 93.203	Score = 93.345	Score = 94.816
the_sky_is_on_fire_01	Score = 92.018	Score = 92.483	Score = 93.445	Score = 74.858	Score = 77.442	Score = 86.252	Score = 76.470
vestibule_01	Score = 87.231	Score = 87.674	Score = 91.148	Score = 73.741	Score = 70.738	Score = 82.808	Score = 80.629
warm_restaurant_01	Score = 87.993	Score = 88.945	Score = 91.238	Score = 75.289	Score = 81.478	Score = 86.750	Score = 81.570