ickshonpe c39e02cefb Improved UI render batching (#8793) ... # Objective `prepare_uinodes` creates a new `UiBatch` whenever the texture changes, when most often it's just queuing untextured quads. Instead of switching textures, we can reduce the number of batches generated significantly by adding a condition to the fragment shader so that it only multiplies by the `textureSample` value when drawing a textured quad. # Solution Add a `mode` field to `UiVertex`. In `prepare_uinodes` set `mode` to 0 if the quad is textured or 1 if untextured. Add a condition to the fragment shader that only multiplies by the `color` value from `textureSample` if `mode` is set to 1. --- ## Changelog * Added a `mode` field to `UiVertex`, and added an extra `u32` vertex attribute to the shader and vertex buffer layout. * In `prepare_uinodes` mode is set to 0 for the vertices of textured quads, and 1 if untextured. * Added a condition to the fragment shader in `ui.wgsl` that only multiplies by the `color` value from `textureSample` if the mode is equal to 0.		2023-06-21 23:50:29 +00:00
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src	Improved UI render batching (#8793)	2023-06-21 23:50:29 +00:00
Cargo.toml	Add CSS Grid support to bevy_ui (#8026)	2023-04-17 16:21:38 +00:00