LightOccluder2D -- SDF Collision is always enabled

[cosparks]

Tested versions

Reproducible on 4.2.1 and latest on master.

System information

Windows 10 - Vulkan Forward+

Issue description

On LightOccluder2D, disabling SDF collisions has no effect. It looks like this because in method RendererCanvasCull::canvas_light_occluder_set_as_sdf_collision in the file godot-engine\servers\rendering\renderer_canvas_cull.cpp, the parameter p_enable is never used:

void RendererCanvasCull::canvas_light_occluder_set_as_sdf_collision(RID p_occluder, bool p_enable) {
	RendererCanvasRender::LightOccluderInstance *occluder = canvas_light_occluder_owner.get_or_null(p_occluder);
	ERR_FAIL_NULL(occluder);
}

Proposed change:

void RendererCanvasCull::canvas_light_occluder_set_as_sdf_collision(RID p_occluder, bool p_enable) {
	RendererCanvasRender::LightOccluderInstance *occluder = canvas_light_occluder_owner.get_or_null(p_occluder);
	ERR_FAIL_NULL(occluder);
	occluder->enabled = p_enable;
}

Steps to reproduce

• create a scene with GPUParticles2D and LightOccluder2D
• add ParticleProcessMaterial to gpu particles instance and set collision mode to rigid
• add occluder polygon to light occluder instance and create a shape
• place light occluder in path of particles -- note that particles collide with it and bounce off
• disable SDF collision on light occluder -- note that particles continue to collide

Minimal reproduction project (MRP)

N/A