crevice import required?

[snyball]

Used to do this with MeshBatch pre-0.8-rc0, requesting an example of how to use InstanceArray to do the same thing. Would be good to add it to the changelog for 0.8 as well I think.

It works with Image, but I don't know how to convert something like the following example to use InstanceArray:

fn silly_example(ctx: &mut Context, rad: f32) {
    let mut batch = MeshBatch::new(Mesh::new_circle(ctx,
                                                    graphics::DrawMode::fill(),
                                                    Vec2::new(0.0, 0.0),
                                                    rad,
                                                    1.0,
                                                    WHITE).unwrap()).unwrap();
    batch.clear();
    batch.add(DrawParam::default());
    batch.draw(ctx, DrawParam::default())
}

[PSteinhaus]

You’re right.
We should re-add the meshbatch-example (though under a slightly different name probably), to showcase how this works.

Until then:

You can use Canvas::draw_instanced_mesh to draw the InstanceArray with an additional Mesh fed in, which will be used.

[snyball]

@PSteinhaus Thanks, was able to port all my code to 0.8.0-rc0!

The last hickup was that the AsStd140 proc-macro expects crevice to be available globally, and because AsStd140 is used as a re-export from ggez, Cargo.toml needs a specific version, so:

crevice = "0.8.0"

The version number is effectively a magic constant, so it should also be mentioned in the changelog. Alternatively re-export crevice as well, and update the shader example with a use ggez::crevice (that works right? idunno.)

[PSteinhaus]

Good point.
Re-exporting crevice seems right to me here. (Bonus points for reminding me that I need to update the examples afterwards, which I of course forgot last time I re-exported glam ;) )