0-vertex.glsl

layout(push_constant) uniform VertexConstants {
    mat4 mvp;
} pc;

1-fragment.glsl

layout(push_constant) uniform FragmentConstants {
    vec4 sun_color;
} pc;

2-test.rs

// Init
let render_pipeline_layout =
    device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
        bind_group_layouts: &[&bind_group_layout],
        push_constant_ranges: &[
            wgpu::PushConstantRange {
                stages: wgpu::ShaderStage::VERTEX,
                range: 0..64,
            },
            wgpu::PushConstantRange {
                stages: wgpu::ShaderStage::FRAGMENT,
                range: 64..80,
            },
        ],
    });


// Draw
pass.set_push_constants(wgpu::ShaderStage::VERTEX, 0, vertex_push_constant);
pass.set_push_constants(wgpu::ShaderStage::FRAGMENT, 64, fragment_push_constant);
pass.draw(0..7, 0..1);