Shaders are still loaded for error-checking, but Botania shaders will be replaced with the
vanilla shader they were based on if useShaders is off.

Starfield is exempt since its whole effect relies on the shader.

diff --git a/Fabric/src/main/java/vazkii/botania/fabric/FiberBotaniaConfig.java b/Fabric/src/main/java/vazkii/botania/fabric/FiberBotaniaConfig.java
--- a/Fabric/src/main/java/vazkii/botania/fabric/FiberBotaniaConfig.java
+++ b/Fabric/src/main/java/vazkii/botania/fabric/FiberBotaniaConfig.java
@@ -86,9 +86,14 @@
 		public final PropertyMirror<Boolean> debugInfo = PropertyMirror.create(BOOLEAN);
 		public final PropertyMirror<Boolean> referencesEnabled = PropertyMirror.create(BOOLEAN);
 		public final PropertyMirror<Boolean> splashesEnabled = PropertyMirror.create(BOOLEAN);
+		public final PropertyMirror<Boolean> useShaders = PropertyMirror.create(BOOLEAN);
 
 		public ConfigTree configure(ConfigTreeBuilder builder) {
 			builder.fork("rendering")
+					.beginValue("shaders", BOOLEAN, true)
+					.withComment("Set this to false to disable the use of shaders for some of the mod's renders. (Requires game restart)")
+					.finishValue(useShaders::mirror)
+
 					.beginValue("boundBlockWireframe", BOOLEAN, true)
 					.withComment("Set this to false to disable the wireframe when looking a block bound to something (spreaders, flowers, etc).")
 					.finishValue(boundBlockWireframe::mirror)
@@ -242,6 +247,11 @@
 		public boolean splashesEnabled() {
 			return splashesEnabled.getValue();
 		}
+
+		@Override
+		public boolean useShaders() {
+			return this.useShaders.getValue();
+		}
 	}
 
 	private static final Client CLIENT = new Client();
diff --git a/Forge/src/main/java/vazkii/botania/forge/ForgeBotaniaConfig.java b/Forge/src/main/java/vazkii/botania/forge/ForgeBotaniaConfig.java
--- a/Forge/src/main/java/vazkii/botania/forge/ForgeBotaniaConfig.java
+++ b/Forge/src/main/java/vazkii/botania/forge/ForgeBotaniaConfig.java
@@ -193,6 +193,11 @@
 		public boolean splashesEnabled() {
 			return splashesEnabled.get();
 		}
+
+		@Override
+		public boolean useShaders() {
+			return this.useShaders.get();
+		}
 	}
 
 	public static final Client CLIENT;
diff --git a/Xplat/src/main/java/vazkii/botania/client/core/helper/CoreShaders.java b/Xplat/src/main/java/vazkii/botania/client/core/helper/CoreShaders.java
--- a/Xplat/src/main/java/vazkii/botania/client/core/helper/CoreShaders.java
+++ b/Xplat/src/main/java/vazkii/botania/client/core/helper/CoreShaders.java
@@ -11,9 +11,12 @@
 import com.mojang.blaze3d.vertex.DefaultVertexFormat;
 import com.mojang.datafixers.util.Pair;
 
+import net.minecraft.client.renderer.GameRenderer;
 import net.minecraft.client.renderer.ShaderInstance;
 import net.minecraft.server.packs.resources.ResourceManager;
 
+import vazkii.botania.xplat.BotaniaConfig;
+
 import java.io.IOException;
 import java.util.function.Consumer;
 
@@ -69,38 +72,72 @@
 	}
 
 	public static ShaderInstance starfield() {
+		// Intended to not respect useShaders config. The render kind of relies entirely
+		// on the shader, like the end portal.
 		return starfieldShaderInstance;
 	}
 
 	public static ShaderInstance doppleganger() {
-		return doppleganger;
+		if (BotaniaConfig.client().useShaders()) {
+			return doppleganger;
+		} else {
+			return GameRenderer.getRendertypeEntityTranslucentShader();
+		}
 	}
 
 	public static ShaderInstance manaPool() {
-		return manaPool;
+		if (BotaniaConfig.client().useShaders()) {
+			return manaPool;
+		} else {
+			return GameRenderer.getPositionColorTexLightmapShader();
+		}
 	}
 
 	public static ShaderInstance terraPlate() {
-		return terraPlate;
+		if (BotaniaConfig.client().useShaders()) {
+			return terraPlate;
+		} else {
+			return GameRenderer.getPositionColorTexLightmapShader();
+		}
 	}
 
 	public static ShaderInstance enchanter() {
-		return enchanter;
+		if (BotaniaConfig.client().useShaders()) {
+			return enchanter;
+		} else {
+			return GameRenderer.getPositionColorTexLightmapShader();
+		}
 	}
 
 	public static ShaderInstance pylon() {
-		return pylon;
+		if (BotaniaConfig.client().useShaders()) {
+			return pylon;
+		} else {
+			return GameRenderer.getRendertypeEntityTranslucentShader();
+		}
 	}
 
 	public static ShaderInstance halo() {
-		return halo;
+		if (BotaniaConfig.client().useShaders()) {
+			return halo;
+		} else {
+			return GameRenderer.getPositionColorTexShader();
+		}
 	}
 
 	public static ShaderInstance filmGrainParticle() {
-		return filmGrainParticle;
+		if (BotaniaConfig.client().useShaders()) {
+			return filmGrainParticle;
+		} else {
+			return GameRenderer.getParticleShader();
+		}
 	}
 
 	public static ShaderInstance dopplegangerBar() {
-		return dopplegangerBar;
+		if (BotaniaConfig.client().useShaders()) {
+			return dopplegangerBar;
+		} else {
+			return GameRenderer.getPositionTexShader();
+		}
 	}
 }
diff --git a/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java b/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java
--- a/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java
+++ b/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java
@@ -11,7 +11,6 @@
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.inventory.CraftingContainer;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.Items;
 import net.minecraft.world.item.crafting.CustomRecipe;
 import net.minecraft.world.item.crafting.RecipeSerializer;
 import net.minecraft.world.item.crafting.SimpleRecipeSerializer;
diff --git a/Xplat/src/main/java/vazkii/botania/xplat/BotaniaConfig.java b/Xplat/src/main/java/vazkii/botania/xplat/BotaniaConfig.java
--- a/Xplat/src/main/java/vazkii/botania/xplat/BotaniaConfig.java
+++ b/Xplat/src/main/java/vazkii/botania/xplat/BotaniaConfig.java
@@ -41,6 +41,7 @@
 		boolean debugInfo();
 		boolean referencesEnabled();
 		boolean splashesEnabled();
+		boolean useShaders();
 	}
 
 	private static ConfigAccess config = null;

botania/patches/linux.yml: FAILED in 2m13s

[Reintroduce useShaders option][0] from [Vincent Lee][1]

[0]: https://lists.sr.ht/~williewillus/violet-moon/patches/41310
[1]: vincent@vincent-lee.net

✗ #993293 FAILED botania/patches/linux.yml https://builds.sr.ht/~williewillus/job/993293

See inline comment, looks like an unrelated change got in.
Otherwise lgtm

On Sun, May 21, 2023 at 01:39:55AM -0700, Vincent Lee wrote:
> diff --git a/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java b/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java
> --- a/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java
> +++ b/Xplat/src/main/java/vazkii/botania/common/crafting/recipe/CompositeLensRecipe.java
> @@ -11,7 +11,6 @@
>  import net.minecraft.resources.ResourceLocation;
>  import net.minecraft.world.inventory.CraftingContainer;
>  import net.minecraft.world.item.ItemStack;
> -import net.minecraft.world.item.Items;

Stray spotless fix that belonged in another commit?