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Added material_overlay property to MeshInstance3D

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Applying overlay materials into multi-surface meshes currently
requires adding a next pass material to all the surfaces, which
might be cumbersome when the material is to be applied to a range
of different geometries. This also makes it not trivial to use
AnimationPlayer to control the material in case of visual effects.
The material_override property is not an option as it works
replacing the active material for the surfaces, not adding a new pass.

This commit adds the material_overlay property to GeometryInstance3D
(and therefore MeshInstance3D), having the same reach as
material_override (that is, all surfaces) but adding a new material
pass on top of the active materials, instead of replacing them.
This commit is contained in:
Fernando Cosentino 2021-09-25 19:40:26 +01:00 • committed by Rémi Verschelde
parent 2c7fcdd7f9
commit ca79373d13
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GPG key ID: C3336907360768E1
18 changed files with 147 additions and 20 deletions
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2
servers/rendering_server.cpp
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@ -32,6 +32,7 @@
#include "core/config/project_settings.h"
#include "servers/rendering/rendering_server_globals.h"
RenderingServer *RenderingServer::singleton = nullptr;
RenderingServer *(*RenderingServer::create_func)() = nullptr;
@ -2462,6 +2463,7 @@ void RenderingServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("instance_geometry_set_flag", "instance", "flag", "enabled"), &RenderingServer::instance_geometry_set_flag);
ClassDB::bind_method(D_METHOD("instance_geometry_set_cast_shadows_setting", "instance", "shadow_casting_setting"), &RenderingServer::instance_geometry_set_cast_shadows_setting);
ClassDB::bind_method(D_METHOD("instance_geometry_set_material_override", "instance", "material"), &RenderingServer::instance_geometry_set_material_override);
ClassDB::bind_method(D_METHOD("instance_geometry_set_material_overlay", "instance", "material"), &RenderingServer::instance_geometry_set_material_overlay);
ClassDB::bind_method(D_METHOD("instance_geometry_set_visibility_range", "instance", "min", "max", "min_margin", "max_margin", "fade_mode"), &RenderingServer::instance_geometry_set_visibility_range);
ClassDB::bind_method(D_METHOD("instance_geometry_set_lightmap", "instance", "lightmap", "lightmap_uv_scale", "lightmap_slice"), &RenderingServer::instance_geometry_set_lightmap);
ClassDB::bind_method(D_METHOD("instance_geometry_set_lod_bias", "instance", "lod_bias"), &RenderingServer::instance_geometry_set_lod_bias);