engine Implementation of baseVertex support

Fixes https://github.com/playcanvas/engine/issues/6751

Added support primitive baseVertex for WebGPU and Batching.

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Sep 20 '24 14:09 AlexAPPi

Is there an alternative of base vertex but for the WebGL to ensure parity between renderers?

Sep 23 '24 11:09 Maksims

Is there an alternative of base vertex but for the WebGL to ensure parity between renderers?

There is no cheap alternative for WebGL2. Only if you change the array of indices directly, via Mesh.setIndices

Sep 23 '24 11:09 AlexAPPi

Is there an alternative of base vertex but for the WebGL to ensure parity between renderers?

There is no cheap alternative for WebGL2. Only if you change the array of indices directly, via Mesh.setIndices

The real solution is for WebGL to support WEBGL_draw_instanced_base_vertex_base_instance on more devices. Till then this is a WebGPU feature (as compute shaders for example)

Sep 23 '24 11:09 mvaligursky

LOL. 0.2% support.

https://web3dsurvey.com/webgl2/extensions/WEBGL_draw_instanced_base_vertex_base_instance

Sep 23 '24 12:09 willeastcott

LOL. 0.2% support.

https://web3dsurvey.com/webgl2/extensions/WEBGL_draw_instanced_base_vertex_base_instance

that is slightly less (-0.04%) than a month ago.

I don't get it. WebGPU supports it, meaning my mac book pro supports it. Some browsers support it on WebGL .. I assume that's not Chrome then?

Searching online, Chrome supports it behind a flag .. when they enable it, this will go to 50%

Sep 23 '24 12:09 mvaligursky

"Will come to all browsers shortly". that was from 2021. haha, webgl/webgpu standards progress summed up perfectly

Jun 06 '25 07:06 MAG-AdrianMeredith