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In the fourth episode of our environment editor tutorial series, we cover the High Dynamic Range (HDR) tools and the Filters in depth. This tutorial release is accompanied by a free pack of environment presets demonstrating a wide range of looks as well as the terrain heightmaps used in the environment editor tutorial series. You can download these free assets from our marketplace here.

Topics covered:

• 0:00 – Intro
• 0:21 - HDR defined
• 0:29 - Dynamic exposure in human visual perception
• 1:46 - Link between auto exposure and field of view
• 3:34 - Gamut and out of gamut tones
• 3:57 - How HDR and tone mapping work
• 4:12 - Seeing a game world without HDR
• 5:40 - Balancing interior and exterior and exterior light levels 6:28 - Setting HDR eye adaptation mode
• 7:13 - Setting overall exposure and color balance
• 8:09 – Saturation
• 8:36 - Simulating human low-light vision
• 9:58 - Using color to create realistic night scenes
• 10:31 - Using color to affect brightness perception
• 10:58 - Color balance and tonal range
• 11:26 - Saturation and tonal range
• 11:42 - Color vs tonal contrast
• 12:22 - EV auto compensation
• 14:28 - EV Min and EV Max
• 14:44 - EV (Exposure Value) defined
• 15:14 - EV values found in the real world
• 15:46 - How EV Min and Max affect exposure compensation
• 17:05 - Seeing EV values with r_HDRDebug
• 17:31 - HDR and diffuse light
• 18:32 - Fine tuning HDR Min and Max
• 19:52 - Tuning HDR to embrace contrast
• 22:10 - Human sensitivity to tonal difference in dark vs. bright scenes
• 23:09 - Using EV Min and Max for stylized looks
• 25:15 - Understanding post-processing effects
• 25:38 - Disabling exposure compensation
• 25:52 - Film curve tone mapping
• 26:03 - Understanding tone curves
• 26:35 - Tone mapping settings: shoulder, midtones, toe
• 28:30 - Film curve whitepoint
• 28:50 - Using Film curve whitepoint to help night scenes
• 30:07 - Tone mapping using shoulder and toe adjustments
• 30:15 - Visualizing shoulder adjustments using a curve and histogram
• 30:37 - Visualizing toe adjustments using a curve and histogram
• 30:48 - Reducing contrast with an inverted S curve
• 30:55 - Adding contrast with an S curve
• 31:06 - Understanding toe, knee, and shoulder adjustments
• 31:46 - Bloom effect
• 32:08 - Grain effect
• 32:27 - Photofilter color and density
• 33:04 - Realism, vision, and creativity innovation