UE4 移動裝置post processing 注意事項
英文原貼：https://docs.unrealengine.com/en-us/Platforms/Mobile/PostProcessEffects
移動裝置上支援的PostProcessing選項
如圖所示：
Color Grading顏色分級
支援的屬性及所對應範圍值如下：
| Post Process Property |
是否支援 |
r.mobile.tonemapperfilm Value |
||
|---|---|---|---|---|
| White Balance |
||||
| Temp |
Yes |
1 |
||
| Tint |
Yes |
1 |
||
| Global |
||||
| Saturation |
Yes |
1 |
||
| Contrast |
Yes |
1 |
||
| Gamma |
Yes |
1 |
||
| Gain |
Yes | 1 |
||
| Offset |
Yes |
1 |
||
| Scene Color Tint |
Yes |
1 |
||
| Color Grading LUT Intensity |
Yes |
1 |
||
| Color Grading LUT |
Yes |
1 |
||
| Shadows |
||||
| Saturation |
Yes |
1 |
||
| Contrast |
Yes |
1 |
||
| Gamma |
Yes |
1 |
||
| Gain |
Yes |
1 |
||
| Offset |
Yes |
1 |
||
| Shadows Max |
Yes |
1 |
||
| Midtones |
||||
| Saturation |
Yes |
1 |
||
| Contrast |
Yes |
1 |
||
| Gamma |
Yes |
1 |
||
| Gain |
Yes |
1 |
||
| Offset |
Yes |
1 |
||
| Highlights |
||||
| Saturation |
Yes |
1 |
||
| Contrast |
Yes |
1 |
||
| Gamma |
Yes |
1 |
||
| Gain |
Yes |
1 |
||
| Offset |
Yes |
1 |
||
| Highlights Min |
Yes |
1 |
||
Tonemapper色調對映器
支援的屬性及可調整影象顏色範圍如下：
| Post Process Property |
是否支援 |
r.mobile.tonemapperfilm Value |
|---|---|---|
| Slope |
Yes |
1 |
| Toe |
Yes |
1 |
| Shoulder |
Yes |
1 |
| Black Clip |
Yes |
1 |
| White Clip |
Yes |
1 |
Mobile Tonemapper移動色調對映器
移動裝置支援的屬性，及調整影象顏色範圍如下：
| Post Process Property |
是否支援 |
r.mobile.tonemapperfilm Value |
|---|---|---|
| Tint |
Yes |
0 |
| Saturation |
Yes |
0 |
| Contrast |
Yes |
0 |
| Tint Shadow |
Yes |
0 |
| Tint Shadow Blend |
Yes |
0 |
| Tint Shadow Amount |
Yes |
0 |
| Channel Mixer Red |
Yes |
0 |
| Channel Mixer Green |
Yes |
0 |
| Channel Mixer Blue |
Yes |
0 |
| Crush Shadows |
Yes |
0 |
| Crush Highlights |
Yes |
0 |
| Dynamic Range |
Yes |
0 |
Lens鏡頭
支援的屬性，Bloom及景深範圍如下：
| Post Process Property |
是否支援 |
r.mobile.tonemapperfilm Value |
||
|---|---|---|---|---|
| Image Effects |
||||
| Chromatic Aberation |
Yes |
0 & 1 |
||
| Vignette Intensity |
Yes |
0 & 1 |
||
| Grain Jitter |
Yes |
0 & 1 |
||
| Color Grading Intensity |
Yes |
1 |
||
| Bloom |
||||
| Method: Standard |
Yes |
0 & 1 |
||
| Method: Convolution |
No |
n/a |
||
| Intensity |
Yes |
0 & 1 |
||
| Threshold |
Yes |
0 & 1 |
||
| Size Scale |
Yes |
0 & 1 |
||
| #123456 Size |
No |
n/a |
||
| #123456 Tint |
No |
n/a |
||
| Convolution Scale |
No |
n/a |
||
| Convolution Center |
No |
n/a |
||
| Convolution Boost |
No |
n/a |
||
| Convolution Buffer |
No |
n/a |
||
| Dirt Mask |
||||
| Dirt Mask Texture |
Yes |
1 |
||
| Dirt Mask Intensity |
Yes |
1 |
||
| Dirt Mask Tint |
Yes |
1 |
||
| Auto Exposure |
||||
| Auto Exposure Histogram |
No |
n/a |
||
| Auto Exposure Basic |
No |
n/a |
||
| Low Percent |
No |
n/a |
||
| High Percent |
No |
n/a |
||
| Min Brightness |
No |
n/a |
||
| Max Brightness |
No |
n/a |
||
| Speed Up |
No |
n/a |
||
| Speed Down |
No |
n/a |
||
| Exposure Bias |
Yes |
0 & 1 |
||
| Histogram Log Min |
No |
n/a |
||
| Histogram Log Max |
No |
n/a |
||
| Low Percent |
No |
n/a |
||
| High Percent |
No |
n/a |
||
| Histogram Log Min |
No |
n/a |
||
| Histogram Log Max |
No |
n/a |
||
| Lens Flares |
||||
| Intensity |
No |
n/a |
||
| Tint |
No |
n/a |
||
| Bokeh Size |
No |
n/a |
||
| Threshold |
No |
n/a |
||
| Bokeh Shape |
No |
n/a |
||
| Tints #012345678 |
No |
n/a |
||
| Depth of Field |
||||
| BokehDOF |
No |
n/a |
||
| GaussianDOF |
Yes |
0 |
||
| CircleDOF |
No |
n/a |
||
| High Quality Gaussian DoF on Mobile |
Yes |
1 |
||
| Aperture F - Stop |
No |
n/a |
||
| Focal Distance |
Yes |
0 |
||
| Depth Blur km for 50% |
No |
n/a |
||
| Depth Blur Radius |
No |
n/a |
||
| Focal Region |
No |
n/a |
||
| Near Transition Region |
Yes |
0 |
||
| Far Transition Region |
Yes |
0 |
||
| Scale |
Yes |
0 |
||
| Max Bokeh Size |
No |
n/a |
||
| Near Blur Size |
No |
n/a |
||
| Far Blur Size |
No |
n/a |
||
| Shape |
No |
n/a |
||
| Occlusion |
No |
n/a |
||
| Color Threshold |
No |
n/a |
||
| Size Threshold |
No |
n/a |
||
| Sky Distance |
No |
n/a |
||
| Vignette Size |
No |
n/a |
||
Rendering Features渲染功能
在渲染功能中，您可以找到支援的屬性，並對特定後期處理材料（如Custom Depth 自定義深度和Custom Stencil自定義模板）對影象進行可視調整。
| Post Process Property |
是否支援 |
r.mobile.tonemapperfilm Value |
||
|---|---|---|---|---|
| Post Process Materials |
||||
| Array |
Yes |
1 |
||
| Ambient Cubemap |
||||
| Tint |
No |
n/a |
||
| Intensity |
No |
n/a |
||
| Cubemap Texture |
No |
n/a |
||
| Ambient Occlusion |
||||
| Intensity |
No |
n/a |
||
| Radius |
No |
n/a |
||
| Static Fraction |
No |
n/a |
||
| Radius in Worldspace |
No |
n/a |
||
| Fade Out Distance |
No |
n/a |
||
| Fade Out Radius |
No |
n/a |
||
| Power |
No |
n/a |
||
| Bias |
No |
n/a |
||
| Quality |
No |
n/a |
||
| Mip Blend |
No |
n/a |
||
| Mip Scale |
No |
n/a |
||
| Mip Threshold |
No |
n/a |
||
| Global Illumination |
||||
| Indirect Lighting Color |
Yes |
0 & 1 |
||
| Indirect Lighting Intensity |
Yes |
0 & 1 |
||
| Motion Blur |
||||
| Amount |
No |
n/a |
||
| Max |
No |
n/a |
||
| Per Object Size |
No |
n/a |
||
| Light Propagation Volume |
||||
| Intensity |
No |
n/a |
||
| Size |
No |
n/a |
||
| Secondary Occlusion Intensity |
No |
n/a |
||
| Occlusion Intensity |
No |
n/a |
||
| Diffuse Occlusion Exponent |
No |
n/a |
||
| Specular Occlusion Exponent |
No |
n/a |
||
| Light Injection Bias |
No |
n/a |
||
| Secondary Bounce Intensity |
No |
n/a |
||
| Geometry Volume Bias |
No |
n/a |
||
| Emissive Injection Intensity |
No |
n/a |
||
| Occlusion Radius |
No |
n/a |
||
| Diffuse Occlusion Intensity |
No |
n/a |
||
| Specular Occlusion Intensity |
No |
n/a |
||
| Fade Range |
No |
n/a |
||
| Directional Occlusion Fade Range |
No |
n/a |
||
| Screen Space Reflections |
||||
| Intensity |
No |
n/a |
||
| Quality |
No |
n/a |
||
| Max Roughness |
No |
n/a |
||
| Misc |
||||
| Screen Percentage |
No |
n/a |
||