From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 30 Oct 2021 20:02:39 +0000 (+0300)
Subject: Improve material handling in RenderMethod
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=b1862c511570cb82155cc8c0628e1e903388fc10

Improve material handling in RenderMethod
---

diff --git a/source/materials/rendermethod.cpp b/source/materials/rendermethod.cpp
index 3208929c..2b4738ef 100644
--- a/source/materials/rendermethod.cpp
+++ b/source/materials/rendermethod.cpp
@@ -16,6 +16,9 @@ namespace GL {
 
 void RenderMethod::set_material_textures()
 {
+	if(!material)
+		return;
+
 	const Tag *material_texture_tags = material->get_texture_tags();
 	for(const Tag *tag=material_texture_tags; tag->id; ++tag)
 		set_texture(*tag, material->get_texture(*tag), material->get_sampler(*tag));
@@ -23,7 +26,7 @@ void RenderMethod::set_material_textures()
 
 void RenderMethod::maybe_create_material_shader()
 {
-	if(shprog && !shprog_from_material)
+	if(!material || (shprog && !shprog_from_material))
 		return;
 
 	map<string, int> extra_spec;
@@ -45,6 +48,7 @@ void RenderMethod::set_shader_program(const Program *prog, const ProgramData *da
 	shprog = prog;
 	shprog_from_material = false;
 	shdata = (data ? new ProgramData(*data) : 0);
+	maybe_create_material_shader();
 }
 
 Tag RenderMethod::get_slotted_uniform_tag(Tag slot) const
@@ -94,6 +98,7 @@ void RenderMethod::set_blend(const Blend &b)
 void RenderMethod::set_receive_shadows(bool rs)
 {
 	receive_shadows = rs;
+	maybe_create_material_shader();
 }
 
 void RenderMethod::apply(Renderer &renderer) const