Add support baseVertex for GPURenderPassEncoder

[AlexAPPi]

Hi!

It would be nice to have baseVertex support for the mesh.

https://developer.mozilla.org/en-US/docs/Web/API/GPURenderPassEncoder/drawIndexed

https://github.com/playcanvas/engine/blob/03920ded44f6cee81ab16a904551b8b1ddecaeb5/src/platform/graphics/webgpu/webgpu-graphics-device.js#L521

https://github.com/playcanvas/engine/blob/03920ded44f6cee81ab16a904551b8b1ddecaeb5/src/scene/mesh.js#L256

[mvaligursky]

WebGL 2 adds support for this using WEBGL_draw_instanced_base_vertex_base_instance but its support seems to be very low (less than 1%) here https://web3dsurvey.com/webgl2

[AlexAPPi]

WebGL 2 adds support for this using WEBGL_draw_instanced_base_vertex_base_instance but its support seems to be very low (less than 1%) here https://web3dsurvey.com/webgl2

If you focus on chromium-like browsers, they have support; this greatly speeds up the work with indexes, for example for the LOD system.

[mvaligursky]

I see this:

My MacOS on latest Chrome does not expose this extension.

What data do you see?

[AlexAPPi]

Sorry, I'm talking about webGPU support.

https://developer.mozilla.org/en-US/docs/Web/API/GPURenderBundleEncoder/drawIndexed#browser_compatibility

[AlexAPPi]

Closed https://github.com/playcanvas/engine/pull/6977

[mvaligursky]

this needs to stay open till the implementation is merged in.