hpl3:engine:rendering
| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
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hpl3:engine:rendering [2012/10/30 10:18] nebej |
hpl3:engine:rendering [2013/10/10 13:13] ian.thomas |
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| - | [[:hpl3:engine:envparticles.jpg|What is Gamma?]] [[:http:www.adobe.com:products:flashplayer:start|Linear-Space Lighting]] [[:hpl3:engine:lens_flares.png|Gamma Correction and Gamma Correction]] | + | [[:hpl3:engine:envparticles.jpg|What is Gamma?]] [[:hpl3:engine:envparticles.jpg|Linear-Space Lighting]] [[:hpl3:engine:envparticles.jpg|Gamma Correction and Gamma Correction]] |
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| It is possible to smoothly fade between two different grading templates.\\ | It is possible to smoothly fade between two different grading templates.\\ | ||
| It uses a small 3D texture with a color as input and another color as output.\\ | It uses a small 3D texture with a color as input and another color as output.\\ | ||
| - | [[:http:filmicgames.com:archives:581|grading.jpg]] | + | [[:http:www.adobe.com:products:flashplayer:start|grading.jpg]] |
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| * Photoshop | * Photoshop | ||
| - | * [[:hpl3:engine:grading.jpg|NVIDIA Texture Tooels for Adobe Photoshop]] | + | * [[https://developer.nvidia.com/nvidia-texture-tools-adobe-photoshop|NVIDIA Texture Tools for Adobe Photoshop]] |
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| - Take a screenshot of the game with color grading disabled | - Take a screenshot of the game with color grading disabled | ||
| - Open the screenshot in Photoshop | - Open the screenshot in Photoshop | ||
| - | - Drag and drop the default grading texture on the canvas (redist/core/textures/grading_default.dds) or ([[:hpl3:engine:grading.jpg|Default Grading Texture]] ) | + | - Drag and drop the default grading texture on the canvas (redist/core/textures/grading_default.dds) or ([[:http:filmicgames.com:archives:581|Default Grading Texture]] ) |
| - Place the color strip anywhere in the image | - Place the color strip anywhere in the image | ||
| - Flatten the image to merge all the layers | - Flatten the image to merge all the layers | ||
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| - | A group with multiple billboards. Batching them together and rendering them at the same time. \\ All the billboards in a group must have the same material, but all other parameters can be different. \\ Alpha sorting is performed internally within the group. But alpha sorting with external billboards and billboard groups is performed as usual. Because of this the billboards in agroup should not be to spread out, a maximum radius of 5-10m is recommended. \\ When selected the Billboard Group will show the combinded bounding volume of all the billboards. | + | A group with multiple billboards. Batching them together and rendering them at the same time. \\ All the billboards in a group must have the same material, but all other parameters can be different. \\ Alpha sorting is performed internally within the group. But alpha sorting with external billboards and billboard groups is performed as usual. Because of this the billboards in agroup should not be to spread out, a maximum radius of 5-10m is recommended. \\ When selected the Billboard Group will show the combinded bounding volume of all the billboards. |
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| - | **Material** | The material which will be used to render all the billboards in the group. | + | **Material** | The material which will be used to render all the billboards in the group. |
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| - | For some effects the liquid amount can be controlled automatically by the time. But scripting can be used to create some other interesting effects. One effect could be to set the LiquidAmount variable to correspond to how much of an object is below the water surface and then slowly lower the LiquidAmount to simulate it drying. Scripting can also be used for showing blood when a character is hurt or if oil starts leaking when triggering a trap. \\ When a material should work with scripting it is a good idea to set the LiquidTrickleFadeIn parameter to 1 so that the LiquidAmount variable works as percentage instead of time. | + | For some effects the liquid amount can be controlled automatically by the time. But scripting can be used to create some other interesting effects. One effect could be to set the LiquidAmount variable to correspond to how much of an object is below the water surface and then slowly lower the LiquidAmount to simulate it drying. Scripting can also be used for showing blood when a character is hurt or if oil starts leaking when triggering a trap. \\ When a material should work with scripting it is a good idea to set the LiquidTrickleFadeIn parameter to 1 so that the LiquidAmount variable works as percentage instead of time. |
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| - | **Focus Start** | The nearest distance to the camera that an object has to be to be sharp. Any closer and it will be blurry | + | **Focus Start** | The nearest distance to the camera that an object has to be to be sharp. Any closer and it will be blurry |
| - | **Focus End ** | The farthest away an object can be and still be sharp. Any further away and it will start getting blurry | + | **Focus End ** | The farthest away an object can be and still be sharp. Any further away and it will start getting blurry |
| - | **Falloff ** | How fast the object should get blurry when it is closer or further away then the focus plane. The blur distance is caluclated as (Focus End - Focus Start) //x // Falloff | + | **Falloff ** | How fast the object should get blurry when it is closer or further away then the focus plane. The blur distance is caluclated as (Focus End - Focus Start) / Falloff |
| - | {{:hpl3:engine:depth_of_field_diagram.png?direct&518x174}} | + | [[:hpl3:engine:grading.jpg|{{:hpl3:engine:depth_of_field_diagram.png?nolink&518x174}}]] |
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| + | === Distance Culling === | ||
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| + | == Overview == | ||
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| + | Removal of objects that get to far away from the camera. Objects are removed based on how big they appear on the screen. The objects are gradually faded out until they are removed. Solid objects dissolve and translucent objects have their alpha faded. | ||
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| + | The default setting is that all objects are faded out when distance culling is activated. Important objects and objects that make up the silhouette of the level should have distance culling turned off. | ||
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| + | Distance culling should only be activated on outdoor levels where occlusion culling is not as effective. | ||
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| + | == Settings == | ||
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| + | **Distance Cull Active** | If distance culling should be used on this level | ||
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| + | **Distance Cull Min Range ** | The minimum range before objects start fading out. This is important to set so that very small objects dont get culled to early | ||
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| + | **Distance Cull Screen Size ** | How small an object has to be in screen size to be culled. A real value between 0.0 - 1.0. If set to 0.1 then any object that is smaller then 10% of the height of the screen will get culled | ||
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| + | **Distance Cull Random Size ** | A random value unique to each object that is added to the screen size. This shoudl be used so that not all objects of the same size are removed at the same range | ||
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| + | **Culled By Distance ** | A variable set per object that specifies if the object should be affected by distance culling | ||
hpl3/engine/rendering.txt ยท Last modified: 2014/05/20 09:33 by nebej
