Remove "generate normal maps" feature (#10313)

Erase all traces of normal "generation" from fragment shaders
Remove the "feature" from the engine and default config
Remove any leftover documentation of it

3 files changed, 1 insertions, 38 deletions

diff --git a/src/client/shader.cpp b/src/client/shader.cpp
index fc0a72319..c5fe5dfe0 100644
--- a/src/client/shader.cpp
+++ b/src/client/shader.cpp
@@ -688,34 +688,6 @@ ShaderInfo generate_shader(const std::string &name, u8 material_type, u8 drawtyp
 	shaders_header += itos(drawtype);
 	shaders_header += "\n";
 
-	if (g_settings->getBool("generate_normalmaps")) {
-		shaders_header += "#define GENERATE_NORMALMAPS 1\n";
-	} else {
-		shaders_header += "#define GENERATE_NORMALMAPS 0\n";
-	}
-	shaders_header += "#define NORMALMAPS_STRENGTH ";
-	shaders_header += ftos(g_settings->getFloat("normalmaps_strength"));
-	shaders_header += "\n";
-	float sample_step;
-	int smooth = (int)g_settings->getFloat("normalmaps_smooth");
-	switch (smooth){
-	case 0:
-		sample_step = 0.0078125; // 1.0 / 128.0
-		break;
-	case 1:
-		sample_step = 0.00390625; // 1.0 / 256.0
-		break;
-	case 2:
-		sample_step = 0.001953125; // 1.0 / 512.0
-		break;
-	default:
-		sample_step = 0.0078125;
-		break;
-	}
-	shaders_header += "#define SAMPLE_STEP ";
-	shaders_header += ftos(sample_step);
-	shaders_header += "\n";
-
 	if (g_settings->getBool("enable_bumpmapping"))
 		shaders_header += "#define ENABLE_BUMPMAPPING\n";
 
diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index d2115c959..3a0b88dc2 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -253,9 +253,6 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("tone_mapping", "false");
 	settings->setDefault("enable_bumpmapping", "false");
 	settings->setDefault("enable_parallax_occlusion", "false");
-	settings->setDefault("generate_normalmaps", "false");
-	settings->setDefault("normalmaps_strength", "0.6");
-	settings->setDefault("normalmaps_smooth", "1");
 	settings->setDefault("parallax_occlusion_mode", "1");
 	settings->setDefault("parallax_occlusion_iterations", "4");
 	settings->setDefault("parallax_occlusion_scale", "0.08");
diff --git a/src/settings_translation_file.cpp b/src/settings_translation_file.cpp
index febfbb9d3..0cd772337 100644
--- a/src/settings_translation_file.cpp
+++ b/src/settings_translation_file.cpp
@@ -242,13 +242,7 @@ fake_function() {
 	gettext("Enables Hable's 'Uncharted 2' filmic tone mapping.\nSimulates the tone curve of photographic film and how this approximates the\nappearance of high dynamic range images. Mid-range contrast is slightly\nenhanced, highlights and shadows are gradually compressed.");
 	gettext("Bumpmapping");
 	gettext("Bumpmapping");
-	gettext("Enables bumpmapping for textures. Normalmaps need to be supplied by the texture pack\nor need to be auto-generated.\nRequires shaders to be enabled.");
-	gettext("Generate normalmaps");
-	gettext("Enables on the fly normalmap generation (Emboss effect).\nRequires bumpmapping to be enabled.");
-	gettext("Normalmaps strength");
-	gettext("Strength of generated normalmaps.");
-	gettext("Normalmaps sampling");
-	gettext("Defines sampling step of texture.\nA higher value results in smoother normal maps.");
+	gettext("Enables bumpmapping for textures. Normalmaps need to be supplied by the texture pack.\nRequires shaders to be enabled.");
 	gettext("Parallax Occlusion");
 	gettext("Parallax occlusion");
 	gettext("Enables parallax occlusion mapping.\nRequires shaders to be enabled.");