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pidi_planar_reflections_3 [2020/08/25 03:56]
irrsoft [Post FX Support]
pidi_planar_reflections_3 [2020/09/25 05:34]
irrsoft [Universal / High Definition RP vs Standard Pipeline]
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-Below you can see a comparison table showing the full feature set of each edition. The Lite edition has an add-on sold separately which adds LWRP support in Unity 2019.1+ (this add-on is included free of charge in the Standard / Team edition). To learn more about the specific limits and differences between the standard Unity rendering pipeline (also known as Built-in) and the new LWRP pipeline, please go to the corresponding section of the documentation.+Below you can see a comparison table showing the full feature set of each edition. The Lite edition has an add-on sold separately which adds LWRP support in Unity 2019.4+ (this add-on is included free of charge in the Standard / Team edition). To learn more about the specific limits and differences between the standard Unity rendering pipeline (also known as Built-in) and the new LWRP pipeline, please go to the corresponding section of the documentation.
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 | Culling, clipping and shadows control |  ✓  |  ✓  | | Culling, clipping and shadows control |  ✓  |  ✓  |
 | Static + real-time reflections composition |  X  |  ✓  | | Static + real-time reflections composition |  X  |  ✓  |
-| Opaque PRB Shaders |  Basic   ✓  | +| Opaque PRB Shaders |  ✓   ✓  | 
-| Transparent PBR Shaders |  Basic   ✓  | +| Transparent PBR Shaders |  ✓   ✓  | 
-| Mobile-ready shaders |  Basic  |  ✓  |  +| Mobile-ready shaders |  ✓  |  ✓  | 
-| LWRP support* |  With SRP add-on   ✓  |+
 | Universal RP (URP) support |  With SRP add-on  |  ✓  | | Universal RP (URP) support |  With SRP add-on  |  ✓  |
 | Support for integrated URP Post FX |  X  |  ✓  | | Support for integrated URP Post FX |  X  |  ✓  |
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 | Support for integrated HDRP Post FX |  X  |  ✓  | | Support for integrated HDRP Post FX |  X  |  ✓  |
 | Water shaders |  With Water add-on  |  ✓  | | Water shaders |  With Water add-on  |  ✓  |
 +| Blur Pass |  X  |  ✓  |
 +
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-*The LWRP pipeline has been deprecated by Unity and thus is no longer supported. Please use the Universal Rendering Pipeline integration instead. For better compatibility, use the latest versions of Universal RP / HDRP with Unity 2019.or above.+*The LWRP pipeline has been deprecated by Unity and thus is no longer supported. Please use the Universal Rendering Pipeline integration instead. For better compatibility, use the latest versions of Universal RP / HDRP with Unity 2019.or above.
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 ---- ----
  
-===== Universal RP vs Standard Pipeline =====+===== Universal / High Definition RP vs Standard Pipeline =====
  
 ---- ----
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 {{tablelayout?colwidth="360px,240px, 240px"&rowsHeaderSource=1&rowsVisible=20&float=center}} {{tablelayout?colwidth="360px,240px, 240px"&rowsHeaderSource=1&rowsVisible=20&float=center}}
-^ Feature  ^  LWRP / Universal RP  ^  Standard Rendering  ^+^ Feature  ^  Universal / High Definition RP  ^  Standard Rendering  ^
 | Render to external RenderTexture |  ✓  |  ✓  | | Render to external RenderTexture |  ✓  |  ✓  |
 | Post Process Stack v2 Support |  ✓  |  ✓  | | Post Process Stack v2 Support |  ✓  |  ✓  |
 | Real-time + Static Reflections |  X  |  ✓  | | Real-time + Static Reflections |  X  |  ✓  |
 | Dynamic reflection resolution |  ✓  |  ✓  | | Dynamic reflection resolution |  ✓  |  ✓  |
-| Advanced optimization |    ✓  |+| Advanced optimization |  ✓   ✓  |
 | Layer-specific reflections |  ✓  |  ✓  | | Layer-specific reflections |  ✓  |  ✓  |
-| Water shaders |  ✓   ✓  |+| Water shaders |  Universal RP Only   ✓  |
 | Depth based effects |  X  |  ✓  | | Depth based effects |  X  |  ✓  |
 +| Blur Pass / Blurred reflections |  ✓  |  ✓  |
  
  
 <WRAP justify> <WRAP justify>
-Different packages are provided to support the different URP and HDRP releases. These packages are clearly labeled with the pipeline's name and version so they are easy to install, just by unpacking their contents inside the Unity Editor after double clicking on either one.+Due to multiple changes in the way URP HDRP releases are handled by Unity it is heavily recommended to use the latest LTS Unity release for SRP pipeline developmentThe SRP packages provided with the asset are clearly labeled to indicate which SRP and Unity version they are targeted for. While they may work with newer versions of Unity and Universal RP / HDRP it is recommended to use their targeted versions.
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   * It is being developed with Unity 2017.1+   * It is being developed with Unity 2017.1+
-  * If it uses LWRP, make sure it is using a compatible version+  * If it uses Universal RP or HDRP, make sure you are using the latest Unity LTS release (Unity 2019.4 LTS)
  
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-{{ :planar3_install_2.jpg?direct&600 |}}+{{ :planar3_install_2.jpg?600 |}}
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 To achieve the best results and especially if you plan to use the advanced Water Shaders with URP, you must change the settings of the Scriptable Render Pipeline Asset that you are using (you can find it in Project Settings / Graphics) and enable the Opaque and Depth texture rendering features. This will ensure that all the internal data required by PIDI Planar Reflections 3 is generated. To achieve the best results and especially if you plan to use the advanced Water Shaders with URP, you must change the settings of the Scriptable Render Pipeline Asset that you are using (you can find it in Project Settings / Graphics) and enable the Opaque and Depth texture rendering features. This will ensure that all the internal data required by PIDI Planar Reflections 3 is generated.
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- +\\ 
-{{ :planar3_lwrp_settings.jpg?direct&600 |}} +{{ :planar3_lwrp_settings.jpg |}} 
 +\\
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-While we do our best to keep up to date with LWRP releases there may be times when Unity updates their pipelines and adds or removes functionality from them (and in most cases breaking the compatibility of LWRP shaders) before we can issue the corresponding update. If your version of LWRP does not load the shaders appropriately or the demo scenes inside the URP Add on folder show pink materials please be patient, as we will issue the corresponding patch usually within 1-2 days of a new LWRP release or contact us to let us know the details of the error to our [[support@irreverent-software.com|support email]].+While we do our best to keep up to date with LWRP releases there may be times when Unity updates their pipelines and adds or removes functionality from them (and in most cases breaking the compatibility of LWRP shaders) before we can issue the corresponding update. If your version of Universal RP / HDRP does not load the shaders appropriately or the demo scenes inside the URP Add on folder show pink materials please be patient, as we will issue the corresponding patch usually within 1-2 days of a new LWRP release or contact us to let us know the details of the error to our [[support@irreverent-software.com|support email]].
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-{{ :planar3_casterui.jpg?direct |}}+{{ :planar3_casterui.jpg |}}
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-{{ :planar3_reflectionready.jpg?direct&600 |}}+{{ :planar3_reflectionready.jpg |}}
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-==== Camera Depth Effects ====+==== Reflection Depth Effects ====
  
-### +<WRAP justify> 
-In some cases you may want to simulate more accurate PBR reflections by using depth-based blur on them (which makes the objects blurrier the further away they are from a surface) or use the depth features of the reflection to generate an accurate mask that allows you to mix real-time and static (or baked) cubemap based reflections. +In some cases you may need to access the depth pass of the reflection, which stores the distance from the different reflected objects to the reflective plane in the green channel, for many different effects such as to generate an accurate mask that allows you to mix real-time and static (or baked) cubemap based reflections. 
-###+</WRAP>
  
-###+<WRAP justify>
 PIDI Planar Reflections 3 makes this process extremely easy by allowing you enable the depth features of the Reflections Renderer with just a toggle, the **CONTACT DEPTH SUPPORT** toggle. PIDI Planar Reflections 3 makes this process extremely easy by allowing you enable the depth features of the Reflections Renderer with just a toggle, the **CONTACT DEPTH SUPPORT** toggle.
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 Enabling this feature will render an additional pass for each texture and store it in a **_ReflectionDepth** texture that can be used by different shaders to simulate a whole new range of effects. The texture contains the distance of each object relative to the surface of the reflective plane stored in a negative green space (the further away the objects are the greener the color gets and the closer the objects are the blacker the color) with the background and spaces without any objects being rendered in full green color. Enabling this feature will render an additional pass for each texture and store it in a **_ReflectionDepth** texture that can be used by different shaders to simulate a whole new range of effects. The texture contains the distance of each object relative to the surface of the reflective plane stored in a negative green space (the further away the objects are the greener the color gets and the closer the objects are the blacker the color) with the background and spaces without any objects being rendered in full green color.
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 To make a Reflections Caster use this depth texture and send it to the materials you just need to enable the **REFLECTION DEPTH** toggle in the Reflections caster component for the corresponding material. To make a Reflections Caster use this depth texture and send it to the materials you just need to enable the **REFLECTION DEPTH** toggle in the Reflections caster component for the corresponding material.
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 {{ :planar3_castdepth.jpg?direct |}} {{ :planar3_castdepth.jpg?direct |}}
 +\\
 +
 +----
 +==== Blurred Reflections Pass ====
 +
 +<WRAP justify>
 +Starting with version 3.5, PIDI Planar Reflections 3 includes a new feature called "Blur Pass". This feature allows you to apply a high quality Gaussian Blur filter to the reflections rendered by the asset right before assigning them to the material. This blur pass is applied by the caster on a per-object and per-material basis.
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 +\\
 +{{ :planar3_reflectionsblur.jpg |}}
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 +There are two ways of applying this blur pass, either to the Final Result of the reflection rendering process or as a separate pass to be stored in a new texture2D parameter called "_BlurReflectionTex". Using the Final Result mode will work with any shader compatible with our reflection system while the Separate Pass mode requires additional work to implement the new _BlurReflectionTex parameter and how its contents will be used. All the included PBR shaders in all rendering pipelines implement and work best with a Separate Blur Pass.
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 +{{ :planarreflections_blur.gif |}}
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 ==== Create Custom Shaders ==== ==== Create Custom Shaders ====
  
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 While this guide will not provide any assistance in how to create shaders (there are far better resources to learn how to do this) we will cover here the basics of which parameters are needed in order to process the reflections as well as how should their coordinates be calculated in order to project them over a surface. While this guide will not provide any assistance in how to create shaders (there are far better resources to learn how to do this) we will cover here the basics of which parameters are needed in order to process the reflections as well as how should their coordinates be calculated in order to project them over a surface.
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 The main parameter needed for the reflections is a sampler2D parameter named _ReflectionTex. This will receive the output texture from the Reflections Renderer through the Reflections Caster. This texture comes ready to be projected using screen coordinates with an inverse X. The main parameter needed for the reflections is a sampler2D parameter named _ReflectionTex. This will receive the output texture from the Reflections Renderer through the Reflections Caster. This texture comes ready to be projected using screen coordinates with an inverse X.
-###+</WRAP>
  
 This is, screen based UVs whose X has been flipped by doing screenUV.x = 1-screenUV.x This is, screen based UVs whose X has been flipped by doing screenUV.x = 1-screenUV.x
  
-###+<WRAP justify>
 Additionally, your shaders can also read the reflection's depth if it is being rendered and cast as an additional texture which stores the depth of the reflected objects in an inverse green channel (the greener the color the further away the objects are). This depth will be sent to a parameter called _ReflectionDepth. Adding this parameter to your shaders will allow them to use this feature, and the coordinates used to project it are the same as those of the standard reflection color. Additionally, your shaders can also read the reflection's depth if it is being rendered and cast as an additional texture which stores the depth of the reflected objects in an inverse green channel (the greener the color the further away the objects are). This depth will be sent to a parameter called _ReflectionDepth. Adding this parameter to your shaders will allow them to use this feature, and the coordinates used to project it are the same as those of the standard reflection color.
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-###+<WRAP justify>
 For LWRP and Universal RP shaders we recommend you to use Shadergraph as it will provide you great compatibility between different versions with little maintenance required. To ease the creation of custom shaders that use PIDI Planar Reflections we have provided a small subgraph called "ReflectionUVs" which already outputs the correct coordinates to project the reflection texture, requiring you only to plug it to a Sample 2D Texture Node which has the _ReflectionTex parameter assigned (make sure that the parameter's reference name is _ReflectionTex or it will not be recognized by the Planar Reflections system). For LWRP and Universal RP shaders we recommend you to use Shadergraph as it will provide you great compatibility between different versions with little maintenance required. To ease the creation of custom shaders that use PIDI Planar Reflections we have provided a small subgraph called "ReflectionUVs" which already outputs the correct coordinates to project the reflection texture, requiring you only to plug it to a Sample 2D Texture Node which has the _ReflectionTex parameter assigned (make sure that the parameter's reference name is _ReflectionTex or it will not be recognized by the Planar Reflections system).
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pidi_planar_reflections_3.txt · Last modified: 2020/09/25 06:14 by irrsoft