Allow Mat4 to be used as attribute to vertex shader
Closed this issue · 3 comments
Just ran into an issue where I was getting this error:
Uncaught Error: No info available for: 35676
at _WebGL_doBindAttribute (Main.elm:6110)
...
After a little digging I discovered it's because there's no support for mat4 attributes.
It seems like this should be possible to do, and pretty straightforward: https://stackoverflow.com/questions/38853096/webgl-how-to-bind-values-to-a-mat4-attribute
My use case is passing in a separate transform for each Entity as an attribute, in order to do the transformation on the GPU. I'm willing to make the change, just wanted to get some opinions first.
@emptyflash this seems like an overlook. I've never had such use case so I kept this code.
I think if it is possible to add Mat4 support without changing the api, then we should do it.
@emptyflash did you work on this?
@w0rm unfortunately I haven't had the time to actually fix this. I was able to workaround it by sending 4 vec4s as attributes.