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#UNITY PALETTE SWAP USING MATRIX ANDROID#

The Scenes for the following samples can be all found in Assets/Samples/2D Animation//Samples/5 SpriteSwap:

Vulkan Mobile Best Practice - Appropriate Use of Surface Rotation on the arm community website.This following sample projects demonstrate the different ways you can use Sprite Swap to achieve different effects and outcomes.

#UNITY PALETTE SWAP USING MATRIX ANDROID#

Handling Device Orientation Efficiently in Vulkan With Pre-Rotation on the Android developers blog.Vulkan Design Guidelines on the Android developer website.These cases only apply when rendering directly to the backbuffer. Use of backbuffer with Unity RenderPass API in an MRT setup together with other Render Textures.Native rendering plugins that use the Vulkan swapchain image might need to be modified.Shaders that use screen space derivatives (ddx, ddy).More info See in Glossary position in the fragment shader ( SV_Position) Pixel lighting is calculated at every screen pixel.

Pixel size depends on your screen resolution.

Shaders that depend on the current pixel The smallest unit in a computer image.

Shaders that don’t use Unity’s projection matrix.

In the following cases, it’s likely that enabling preTransform requires additional modifications to your Unity Project before you can use it: UNITY_DISPLAY_ORIENTATION_PRETRANSFORM is translated into a Vulkan specialization constant, which makes it efficient to use in if or switch statements. If UNITY_PRETRANSFORM_TO_DISPLAY_ORIENTATION is undefined, or when rendering to a Render Texture, the value of UNITY_DISPLAY_ORIENTATION_PRETRANSFORM is UNITY_DISPLAY_ORIENTATION_0. UNITY_DISPLAY_ORIENTATION_PRETRANSFORM is a constant that is set to the current preTransform rotation.

preTransform is enabled in the Player Settings.

The macro UNITY_PRETRANSFORM_TO_DISPLAY_ORIENTATION is only defined if all of the following conditions are true (otherwise, it’s undefined): Unity provides utility macros to handle special cases in shaders (for more information, see the Known limitations section below). Unity adjusts these as needed, and also handles readback operations from the backbuffer such as Grab Pass, ReadPixels, or Screenshot. The same applies to viewports The user’s visible area of an app on their screen. For example, the value of Screen.width doesn’t change because of the preTransform setting. The preTransform setting doesn’t affect the behavior of Unity’s C# API.

This means that the rotation itself is applied in the vertex shader A program that runs on the GPU.

To apply the rotation, Unity modifies the projection matrix (UNITY_MATRIX_MVP, UNITY_MATRIX_P).

Then you can use the Render Texture in a Material just like a regular Texture. To use them, first create a new Render Texture and designate one of your Cameras to render into it. It has no effect when rendering to a Render Texture A special type of Texture that is created and updated at runtime. Note: The rotation only applies when Unity renders directly to the backbuffer. More info See in Glossary (see also: PlayerSettings.vulkanEnablePreTransform) and enable Apply display rotation during rendering. To do this, navigate to the Android Player Settings Settings that let you set various player-specific options for the final game built by Unity. In most cases, you can apply this rotation during rendering with very little overhead. This additional rotation might incur a performance cost, depending on the device’s hardware capabilities. If your application’s framebuffer orientation doesn’t match the display’s native orientation (portrait, for most devices), Android needs to apply an additional rotation every time a rendered frame appears on the screen.