Shader with dissolve and blue pulse on block previews.

Floor mode.
Block preview sorting based on player distance.

src/main/java/nl/requios/effortlessbuilding/BuildConfig.java

@@ -57,5 +57,8 @@ public class BuildConfig {
     public static class Visuals {
         @Comment({"Show a block preview if you have a block in hand on build mode Normal"})
         public boolean alwaysShowBlockPreview = false;
+
+        @Comment({"Use fancy shaders while placing blocks"})
+        public boolean useShaders = true;
     }
 }

src/main/java/nl/requios/effortlessbuilding/buildmode/Floor.java

@@ -3,34 +3,136 @@ package nl.requios.effortlessbuilding.buildmode;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.math.Vec3d;
+import nl.requios.effortlessbuilding.helper.ReachHelper;
 
-import java.util.ArrayList;
-import java.util.List;
+import java.util.*;
 
 public class Floor implements IBuildMode {
+    Dictionary<UUID, Integer> rightClickNrTable = new Hashtable<>();
+    Dictionary<UUID, BlockPos> firstPosTable = new Hashtable<>();
+    Dictionary<UUID, EnumFacing> sideHitTable = new Hashtable<>();
+    Dictionary<UUID, Vec3d> hitVecTable = new Hashtable<>();
+
     @Override
     public void initialize(EntityPlayer player) {
-
+        rightClickNrTable.put(player.getUniqueID(), 0);
+        firstPosTable.put(player.getUniqueID(), BlockPos.ORIGIN);
+        sideHitTable.put(player.getUniqueID(), EnumFacing.UP);
+        hitVecTable.put(player.getUniqueID(), Vec3d.ZERO);
     }
 
     @Override
     public List<BlockPos> onRightClick(EntityPlayer player, BlockPos blockPos, EnumFacing sideHit, Vec3d hitVec) {
-        return new ArrayList<>();
+        List<BlockPos> list = new ArrayList<>();
+
+        int rightClickNr = rightClickNrTable.get(player.getUniqueID());
+        rightClickNr++;
+        rightClickNrTable.put(player.getUniqueID(), rightClickNr);
+
+        if (rightClickNr == 1) {
+            //If clicking in air, reset and try again
+            if (blockPos == null) {
+                rightClickNrTable.put(player.getUniqueID(), 0);
+                return list;
+            }
+
+            //First click, remember starting position
+            firstPosTable.put(player.getUniqueID(), blockPos);
+            sideHitTable.put(player.getUniqueID(), sideHit);
+            hitVecTable.put(player.getUniqueID(), hitVec);
+            //Keep list empty, dont place any blocks yet
+        } else {
+            //Second click, place wall
+
+            list = findCoordinates(player, blockPos);
+            rightClickNrTable.put(player.getUniqueID(), 0);
+        }
+
+        return list;
     }
 
     @Override
     public List<BlockPos> findCoordinates(EntityPlayer player, BlockPos blockPos) {
-        return new ArrayList<>();
+        List<BlockPos> list = new ArrayList<>();
+        int rightClickNr = rightClickNrTable.get(player.getUniqueID());
+        BlockPos firstPos = firstPosTable.get(player.getUniqueID());
+
+        if (rightClickNr == 0) {
+            if (blockPos != null)
+                list.add(blockPos);
+        } else {
+            Vec3d look = player.getLookVec();
+            Vec3d start = new Vec3d(player.posX, player.posY + player.getEyeHeight(), player.posZ);
+
+            //try on z axis
+            double y = firstPos.getY();
+
+            //then x and z are
+            double x = (y - start.y) / look.y * look.x + start.x;
+            double z = (y - start.y) / look.y * look.z + start.z;
+
+            Vec3d yBound = new Vec3d(x, y, z);
+
+            //distance to player
+            double yDistSquared = yBound.subtract(start).lengthSquared();
+
+
+            int reach = ReachHelper.getMaxReach(player); //4 times as much as normal placement reach
+
+            //check if its not behind the player and its not too close and not too far
+            boolean yValid = yBound.subtract(start).dotProduct(look) > 0 &&
+                             yDistSquared > 4 && yDistSquared < reach * reach;
+
+            //select the one that is closest to the player and is valid
+            Vec3d selected = null;
+            if (yValid) selected = yBound;
+
+            if (selected == null) return list;
+
+            //check if it doesnt go through blocks
+            RayTraceResult rayTraceResult = player.world.rayTraceBlocks(start, selected, false, false, false);
+            if (rayTraceResult != null && rayTraceResult.typeOfHit != RayTraceResult.Type.BLOCK) {
+                //return empty list
+                return list;
+            }
+
+            BlockPos secondPos = new BlockPos(selected);
+
+            //Add whole wall
+            //Limit amount of blocks you can place per row
+            int limit = ReachHelper.getMaxBlocksPlacedAtOnce(player);
+
+            int x1 = firstPos.getX(), x2 = secondPos.getX();
+            int y1 = firstPos.getY(), y2 = secondPos.getY();
+            int z1 = firstPos.getZ(), z2 = secondPos.getZ();
+
+            for (int l = x1; x1 < x2 ? l <= x2 : l >= x2; l += x1 < x2 ? 1 : -1) {
+
+                for (int n = z1; z1 < z2 ? n <= z2 : n >= z2; n += z1 < z2 ? 1 : -1) {
+
+                    //check if whole row fits within limit
+                    if (Math.abs(y1 - y2) < limit - list.size()) {
+
+                        for (int m = y1; y1 < y2 ? m <= y2 : m >= y2; m += y1 < y2 ? 1 : -1) {
+                            list.add(new BlockPos(l, m, n));
+                        }
+                    }
+                }
+            }
+        }
+
+        return list;
     }
 
     @Override
     public EnumFacing getSideHit(EntityPlayer player) {
-        return null;
+        return sideHitTable.get(player.getUniqueID());
     }
 
     @Override
     public Vec3d getHitVec(EntityPlayer player) {
-        return null;
+        return hitVecTable.get(player.getUniqueID());
     }
 }

src/main/java/nl/requios/effortlessbuilding/buildmode/Wall.java

@@ -5,7 +5,6 @@ import net.minecraft.util.EnumFacing;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.math.Vec3d;
-import nl.requios.effortlessbuilding.EffortlessBuilding;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
 
 import java.util.*;

src/main/java/nl/requios/effortlessbuilding/gui/RandomizerBagGuiContainer.java

@@ -12,7 +12,7 @@ import nl.requios.effortlessbuilding.EffortlessBuilding;
 @SideOnly(Side.CLIENT)
 public class RandomizerBagGuiContainer extends GuiContainer {
     private static final ResourceLocation guiTextures =
-            new ResourceLocation(EffortlessBuilding.MODID + ":textures/gui/container/randomizerbag.png");
+            new ResourceLocation(EffortlessBuilding.MODID, "textures/gui/container/randomizerbag.png");
     private final InventoryPlayer inventoryPlayer;
     private final IItemHandler inventoryBag;
 

src/main/java/nl/requios/effortlessbuilding/helper/RenderHelper.java

@@ -1,17 +1,21 @@
 package nl.requios.effortlessbuilding.helper;
 
 import net.minecraft.block.Block;
+import net.minecraft.block.BlockDirt;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.gui.Gui;
 import net.minecraft.client.renderer.*;
 import net.minecraft.client.renderer.texture.TextureMap;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.init.Blocks;
 import net.minecraft.item.ItemBlock;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumFacing;
+import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.SoundCategory;
 import net.minecraft.util.SoundEvent;
 import net.minecraft.util.math.AxisAlignedBB;
@@ -35,13 +39,18 @@ import nl.requios.effortlessbuilding.buildmodifier.ModifierSettingsManager;
 import nl.requios.effortlessbuilding.buildmodifier.RadialMirror;
 import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import org.lwjgl.opengl.ARBMultitexture;
+import org.lwjgl.opengl.ARBShaderObjects;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL14;
 import org.lwjgl.util.Color;
 
 import javax.annotation.Nullable;
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
 import java.util.List;
+import java.util.function.Consumer;
 
 @Mod.EventBusSubscriber(Side.CLIENT)
 public class RenderHelper implements IWorldEventListener {
@@ -56,6 +65,8 @@ public class RenderHelper implements IWorldEventListener {
 
     private static List<BlockPos> previousCoordinates;
 
+    private static final int secondaryTextureUnit = 7;
+
     private static void begin(float partialTicks) {
         EntityPlayer player = Minecraft.getMinecraft().player;
         double playerX = player.prevPosX + (player.posX - player.prevPosX) * partialTicks;
@@ -89,14 +100,17 @@ public class RenderHelper implements IWorldEventListener {
         GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
         GL11.glEnable(GL11.GL_CULL_FACE);
         GL11.glEnable(GL11.GL_TEXTURE_2D);
+        Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation(EffortlessBuilding.MODID, "textures/shader_color.png"));
+        Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation(EffortlessBuilding.MODID, "textures/shader_mask.png"));
+
         Minecraft.getMinecraft().renderEngine.bindTexture(TextureMap.LOCATION_BLOCKS_TEXTURE);
         GlStateManager.enableBlend();
-        GlStateManager.blendFunc(GL11.GL_CONSTANT_ALPHA, GL11.GL_ONE_MINUS_CONSTANT_ALPHA);
+        GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
         GL14.glBlendColor(1F, 1F, 1F, 0.8f);
     }
 
     private static void endBlockPreviews() {
-        GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+        ShaderHelper.releaseShader();
         GlStateManager.disableBlend();
         GL11.glPopAttrib();
     }
@@ -241,6 +255,9 @@ public class RenderHelper implements IWorldEventListener {
 
             if (sideHit != null) {
                 BlockRendererDispatcher dispatcher = Minecraft.getMinecraft().getBlockRendererDispatcher();
+                float percentile = ClientProxy.ticksInGame / 100f % 1f;
+                //TODO test
+                percentile = 1f;
 
                 //get coordinates
                 List<BlockPos> startCoordinates = BuildModes.findCoordinates(player, startPos);
@@ -253,6 +270,13 @@ public class RenderHelper implements IWorldEventListener {
 
                 List<BlockPos> newCoordinates = BuildModifiers.findCoordinates(player, startCoordinates);
 
+                Collections.sort(newCoordinates, (lhs, rhs) -> {
+                    // -1 - less than, 1 - greater than, 0 - equal
+                    double lhsDistanceToPlayer = new Vec3d(lhs).subtract(player.getPositionEyes(1f)).lengthSquared();
+                    double rhsDistanceToPlayer = new Vec3d(rhs).subtract(player.getPositionEyes(1f)).lengthSquared();
+                    return (int) Math.signum(lhsDistanceToPlayer - rhsDistanceToPlayer);
+                });
+
                 //check if they are different from previous
                 if (!BuildModifiers.compareCoordinates(previousCoordinates, newCoordinates)) {
                     previousCoordinates = newCoordinates;
@@ -275,6 +299,8 @@ public class RenderHelper implements IWorldEventListener {
                         if (!itemstack.isEmpty() && SurvivalHelper.canPlayerEdit(player, player.world, blockPos, itemstack) &&
                             SurvivalHelper.mayPlace(player.world, Block.getBlockFromItem(itemstack.getItem()), blockState, blockPos, true, EnumFacing.UP, player) &&
                             SurvivalHelper.canReplace(player.world, player, blockPos)) {
+
+                            ShaderHelper.useShader(ShaderHelper.psiBar, generateCallback(percentile, new Vec3d(blockPos), i == 0 || i == newCoordinates.size() - 1));
                             renderBlockPreview(dispatcher, blockPos, blockState);
                         }
                     }
@@ -395,6 +421,40 @@ public class RenderHelper implements IWorldEventListener {
         tessellator.draw();
     }
 
+    private static Consumer<Integer> generateCallback(final float percentile, final Vec3d blockpos, final boolean highlight) {
+        Minecraft mc = Minecraft.getMinecraft();
+        return (Integer shader) -> {
+            int percentileUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "percentile");
+            int highlightUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "highlight");
+            int blockposUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "blockpos");
+            int imageUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "image");
+            int maskUniform = ARBShaderObjects.glGetUniformLocationARB(shader, "mask");
+
+            //image
+            OpenGlHelper.setActiveTexture(ARBMultitexture.GL_TEXTURE0_ARB);
+            GL11.glBindTexture(GL11.GL_TEXTURE_2D, mc.renderEngine.getTexture(TextureMap.LOCATION_BLOCKS_TEXTURE/*new ResourceLocation(EffortlessBuilding.MODID, "textures/shader_color.png")*/).getGlTextureId());
+            ARBShaderObjects.glUniform1iARB(imageUniform, 0);
+
+            OpenGlHelper.setActiveTexture(ARBMultitexture.GL_TEXTURE0_ARB + secondaryTextureUnit);
+
+            GlStateManager.enableTexture2D();
+            GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);
+
+            //mask
+            GL11.glBindTexture(GL11.GL_TEXTURE_2D,
+                    mc.renderEngine.getTexture(new ResourceLocation(EffortlessBuilding.MODID, "textures/shader_mask.png")).getGlTextureId());
+            ARBShaderObjects.glUniform1iARB(maskUniform, secondaryTextureUnit);
+
+            //blockpos
+            ARBShaderObjects.glUniform3fARB(blockposUniform, (float) blockpos.x, (float) blockpos.y, (float) blockpos.z);
+
+            //percentile
+            ARBShaderObjects.glUniform1fARB(percentileUniform, percentile);
+            //highlight
+            ARBShaderObjects.glUniform1iARB(highlightUniform, highlight ? 1 : 0);
+        };
+    }
+
     //IWORLDEVENTLISTENER IMPLEMENTATION
     @Override
     public void notifyBlockUpdate(World worldIn, BlockPos pos, IBlockState oldState, IBlockState newState, int flags) {

src/main/java/nl/requios/effortlessbuilding/helper/ShaderHelper.java

@@ -0,0 +1,195 @@
+/**
+ * This class was created by <Vazkii>. It's distributed as
+ * part of the Botania Mod. Get the Source Code in github:
+ * https://github.com/Vazkii/Botania
+ *
+ * Modified by Requios
+ *
+ * Botania is Open Source and distributed under the
+ * Botania License: http://botaniamod.net/license.php
+ *
+ * File Created @ [Apr 9, 2014, 11:20:26 PM (GMT)]
+ */
+package nl.requios.effortlessbuilding.helper;
+
+import net.minecraft.client.renderer.OpenGlHelper;
+import nl.requios.effortlessbuilding.BuildConfig;
+import nl.requios.effortlessbuilding.EffortlessBuilding;
+import nl.requios.effortlessbuilding.proxy.ClientProxy;
+import org.apache.logging.log4j.Level;
+import org.lwjgl.opengl.ARBFragmentShader;
+import org.lwjgl.opengl.ARBShaderObjects;
+import org.lwjgl.opengl.ARBVertexShader;
+import org.lwjgl.opengl.GL11;
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.util.function.Consumer;
+
+public final class ShaderHelper {
+
+    private static final int VERT_ST = ARBVertexShader.GL_VERTEX_SHADER_ARB;
+    private static final int FRAG_ST = ARBFragmentShader.GL_FRAGMENT_SHADER_ARB;
+
+    private static final int VERT = 1;
+    private static final int FRAG = 2;
+
+    private static final String VERT_EXTENSION = ".vert";
+    private static final String FRAG_EXTENSION = ".frag";
+
+    public static int rawColor;
+    public static int psiBar;
+
+    public static void init() {
+        if(!doUseShaders())
+            return;
+
+        rawColor = createProgram("/assets/effortlessbuilding/shaders/raw_color", FRAG);
+        psiBar = createProgram("/assets/effortlessbuilding/shaders/dissolve", FRAG);
+    }
+
+    public static void useShader(int shader, Consumer<Integer> callback) {
+        if(!doUseShaders())
+            return;
+
+        ARBShaderObjects.glUseProgramObjectARB(shader);
+
+        if(shader != 0) {
+            int time = ARBShaderObjects.glGetUniformLocationARB(shader, "time");
+            ARBShaderObjects.glUniform1iARB(time, ClientProxy.ticksInGame);
+
+            if(callback != null)
+                callback.accept(shader);
+        }
+    }
+
+    public static void useShader(int shader) {
+        useShader(shader, null);
+    }
+
+    public static void releaseShader() {
+        useShader(0);
+    }
+
+    public static boolean doUseShaders() {
+        return BuildConfig.visuals.useShaders && OpenGlHelper.shadersSupported;
+    }
+
+    private static int createProgram(String s, int sides) {
+        boolean vert = (sides & VERT) != 0;
+        boolean frag = (sides & FRAG) != 0;
+
+        return createProgram(vert ? s + VERT_EXTENSION : null, frag ? s + FRAG_EXTENSION : null);
+    }
+
+    // Most of the code taken from the LWJGL wiki
+    // http://lwjgl.org/wiki/index.php?title=GLSL_Shaders_with_LWJGL
+
+    private static int createProgram(String vert, String frag) {
+        int vertId = 0, fragId = 0, program;
+        if(vert != null)
+            vertId = createShader(vert, VERT_ST);
+        if(frag != null)
+            fragId = createShader(frag, FRAG_ST);
+
+        program = ARBShaderObjects.glCreateProgramObjectARB();
+        if(program == 0)
+            return 0;
+
+        if(vert != null)
+            ARBShaderObjects.glAttachObjectARB(program, vertId);
+        if(frag != null)
+            ARBShaderObjects.glAttachObjectARB(program, fragId);
+
+        ARBShaderObjects.glLinkProgramARB(program);
+        if(ARBShaderObjects.glGetObjectParameteriARB(program, ARBShaderObjects.GL_OBJECT_LINK_STATUS_ARB) == GL11.GL_FALSE) {
+            EffortlessBuilding.logger.log(Level.ERROR, getLogInfo(program));
+            return 0;
+        }
+
+        ARBShaderObjects.glValidateProgramARB(program);
+        if (ARBShaderObjects.glGetObjectParameteriARB(program, ARBShaderObjects.GL_OBJECT_VALIDATE_STATUS_ARB) == GL11.GL_FALSE) {
+            EffortlessBuilding.logger.log(Level.ERROR, getLogInfo(program));
+            return 0;
+        }
+
+        return program;
+    }
+
+    private static int createShader(String filename, int shaderType){
+        int shader = 0;
+        try {
+            shader = ARBShaderObjects.glCreateShaderObjectARB(shaderType);
+
+            if(shader == 0)
+                return 0;
+
+            ARBShaderObjects.glShaderSourceARB(shader, readFileAsString(filename));
+            ARBShaderObjects.glCompileShaderARB(shader);
+
+            if (ARBShaderObjects.glGetObjectParameteriARB(shader, ARBShaderObjects.GL_OBJECT_COMPILE_STATUS_ARB) == GL11.GL_FALSE)
+                throw new RuntimeException("Error creating shader: " + getLogInfo(shader));
+
+            return shader;
+        }
+        catch(Exception e) {
+            ARBShaderObjects.glDeleteObjectARB(shader);
+            e.printStackTrace();
+            return -1;
+        }
+    }
+
+    private static String getLogInfo(int obj) {
+        return ARBShaderObjects.glGetInfoLogARB(obj, ARBShaderObjects.glGetObjectParameteriARB(obj, ARBShaderObjects.GL_OBJECT_INFO_LOG_LENGTH_ARB));
+    }
+
+    private static String readFileAsString(String filename) throws Exception {
+        StringBuilder source = new StringBuilder();
+        InputStream in = ShaderHelper.class.getResourceAsStream(filename);
+        Exception exception = null;
+        BufferedReader reader;
+
+        if(in == null)
+            return "";
+
+        try {
+            reader = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));
+
+            Exception innerExc= null;
+            try {
+                String line;
+                while((line = reader.readLine()) != null)
+                    source.append(line).append('\n');
+            } catch(Exception exc) {
+                exception = exc;
+            } finally {
+                try {
+                    reader.close();
+                } catch(Exception exc) {
+                    innerExc = exc;
+                }
+            }
+
+            if(innerExc != null)
+                throw innerExc;
+        } catch(Exception exc) {
+            exception = exc;
+        } finally {
+            try {
+                in.close();
+            } catch(Exception exc) {
+                if(exception == null)
+                    exception = exc;
+                else exc.printStackTrace();
+            }
+
+            if(exception != null)
+                throw exception;
+        }
+
+        return source.toString();
+    }
+
+}

src/main/java/nl/requios/effortlessbuilding/proxy/ClientProxy.java

@@ -6,6 +6,7 @@ import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.audio.PositionedSoundRecord;
 import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.gui.ScaledResolution;
 import net.minecraft.client.renderer.block.model.ModelResourceLocation;
 import net.minecraft.client.renderer.texture.TextureMap;
@@ -51,6 +52,7 @@ import nl.requios.effortlessbuilding.gui.buildmode.RadialMenu;
 import nl.requios.effortlessbuilding.gui.buildmodifier.ModifierSettingsGui;
 import nl.requios.effortlessbuilding.helper.ReachHelper;
 import nl.requios.effortlessbuilding.helper.RenderHelper;
+import nl.requios.effortlessbuilding.helper.ShaderHelper;
 import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 import nl.requios.effortlessbuilding.network.BlockBrokenMessage;
 import nl.requios.effortlessbuilding.network.BlockPlacedMessage;
@@ -70,10 +72,13 @@ public class ClientProxy implements IProxy {
     public static RayTraceResult currentLookAt;
     private static int breakCooldown = 0;
 
+    public static int ticksInGame = 0;
+
     private static final HashMap<BuildModes.BuildModeEnum, RadialMenu.SpriteIconPositioning> buildModeIcons = new HashMap<>();
 
     @Override
     public void preInit(FMLPreInitializationEvent event) {
+        ShaderHelper.init();
     }
 
     @Override
@@ -142,6 +147,10 @@ public class ClientProxy implements IProxy {
         }
     }
 
+    /**
+     * From Chisels and Bits by AlgorithmX2
+     * https://github.com/AlgorithmX2/Chisels-and-Bits/blob/1.12/src/main/java/mod/chiselsandbits/core/ClientSide.java
+     */
     private static void loadIcon(final TextureMap map, final BuildModes.BuildModeEnum mode) {
         final RadialMenu.SpriteIconPositioning sip = new RadialMenu.SpriteIconPositioning();
 
@@ -284,6 +293,11 @@ public class ClientProxy implements IProxy {
 
         //QuickReplace toggle
         if (keyBindings[1].isPressed()) {
+            //TODO testing
+            EffortlessBuilding.log(player, "ShaderHelper init");
+            ShaderHelper.init();
+
+
             ModifierSettingsManager.ModifierSettings modifierSettings = ModifierSettingsManager.getModifierSettings(player);
             modifierSettings.setQuickReplace(!modifierSettings.doQuickReplace());
             EffortlessBuilding.log(player, "Set "+ TextFormatting.GOLD + "Quick Replace " + TextFormatting.RESET + (
@@ -304,29 +318,35 @@ public class ClientProxy implements IProxy {
 
     @SubscribeEvent
     public static void onClientTick(TickEvent.ClientTickEvent event) {
-        if (event.phase != TickEvent.Phase.START) return;
+        if (event.phase == TickEvent.Phase.START) {
+            RayTraceResult objectMouseOver = Minecraft.getMinecraft().objectMouseOver;
+            //Checking for null is necessary! Even in vanilla when looking down ladders it is occasionally null (instead of Type MISS)
+            if (objectMouseOver == null) return;
 
-        RayTraceResult objectMouseOver = Minecraft.getMinecraft().objectMouseOver;
-        //Checking for null is necessary! Even in vanilla when looking down ladders it is occasionally null (instead of Type MISS)
-        if (objectMouseOver == null) return;
-
-        if (currentLookAt == null) {
-            currentLookAt = objectMouseOver;
-            previousLookAt = objectMouseOver;
-            return;
-        }
-
-        if (objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK) {
-            if (currentLookAt.typeOfHit != RayTraceResult.Type.BLOCK) {
+            if (currentLookAt == null) {
                 currentLookAt = objectMouseOver;
                 previousLookAt = objectMouseOver;
-            } else {
-                if (currentLookAt.getBlockPos() != objectMouseOver.getBlockPos()){
-                    previousLookAt = currentLookAt;
+                return;
+            }
+
+            if (objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK) {
+                if (currentLookAt.typeOfHit != RayTraceResult.Type.BLOCK) {
                     currentLookAt = objectMouseOver;
+                    previousLookAt = objectMouseOver;
+                } else {
+                    if (currentLookAt.getBlockPos() != objectMouseOver.getBlockPos()) {
+                        previousLookAt = currentLookAt;
+                        currentLookAt = objectMouseOver;
+                    }
                 }
             }
+        } else if (event.phase == TickEvent.Phase.END){
+            GuiScreen gui = Minecraft.getMinecraft().currentScreen;
+            if(gui == null || !gui.doesGuiPauseGame()) {
+                ticksInGame++;
+            }
         }
+
     }
 
     @SubscribeEvent

src/main/resources/assets/effortlessbuilding/shaders/dissolve.frag

@@ -0,0 +1,134 @@
+#version 120
+
+uniform int time; // Passed in, see ShaderHelper.java
+
+uniform float percentile; // Passed in via Callback
+uniform int highlight;
+uniform vec3 blockpos;
+uniform sampler2D image;
+uniform sampler2D mask;
+//	Simplex 3D Noise
+//	by Ian McEwan, Ashima Arts
+//
+vec4 permute(vec4 x) {return mod(((x*34.0)+1.0)*x, 289.0);}
+vec4 taylorInvSqrt(vec4 r) {return 1.79284291400159 - 0.85373472095314 * r;}
+
+float snoise(vec3 v){
+    const vec2  C = vec2(1.0/6.0, 1.0/3.0) ;
+    const vec4  D = vec4(0.0, 0.5, 1.0, 2.0);
+
+    // First corner
+    vec3 i  = floor(v + dot(v, C.yyy) );
+    vec3 x0 =   v - i + dot(i, C.xxx) ;
+
+    // Other corners
+    vec3 g = step(x0.yzx, x0.xyz);
+    vec3 l = 1.0 - g;
+    vec3 i1 = min( g.xyz, l.zxy );
+    vec3 i2 = max( g.xyz, l.zxy );
+
+    //  x0 = x0 - 0. + 0.0 * C
+    vec3 x1 = x0 - i1 + 1.0 * C.xxx;
+    vec3 x2 = x0 - i2 + 2.0 * C.xxx;
+    vec3 x3 = x0 - 1. + 3.0 * C.xxx;
+
+    // Permutations
+    i = mod(i, 289.0 );
+    vec4 p = permute( permute( permute(
+             i.z + vec4(0.0, i1.z, i2.z, 1.0 ))
+           + i.y + vec4(0.0, i1.y, i2.y, 1.0 ))
+           + i.x + vec4(0.0, i1.x, i2.x, 1.0 ));
+
+    // Gradients
+    // ( N*N points uniformly over a square, mapped onto an octahedron.)
+    float n_ = 1.0/7.0; // N=7
+    vec3  ns = n_ * D.wyz - D.xzx;
+
+    vec4 j = p - 49.0 * floor(p * ns.z *ns.z);  //  mod(p,N*N)
+
+    vec4 x_ = floor(j * ns.z);
+    vec4 y_ = floor(j - 7.0 * x_ );    // mod(j,N)
+
+    vec4 x = x_ *ns.x + ns.yyyy;
+    vec4 y = y_ *ns.x + ns.yyyy;
+    vec4 h = 1.0 - abs(x) - abs(y);
+
+    vec4 b0 = vec4( x.xy, y.xy );
+    vec4 b1 = vec4( x.zw, y.zw );
+
+    vec4 s0 = floor(b0)*2.0 + 1.0;
+    vec4 s1 = floor(b1)*2.0 + 1.0;
+    vec4 sh = -step(h, vec4(0.0));
+
+    vec4 a0 = b0.xzyw + s0.xzyw*sh.xxyy ;
+    vec4 a1 = b1.xzyw + s1.xzyw*sh.zzww ;
+
+    vec3 p0 = vec3(a0.xy,h.x);
+    vec3 p1 = vec3(a0.zw,h.y);
+    vec3 p2 = vec3(a1.xy,h.z);
+    vec3 p3 = vec3(a1.zw,h.w);
+
+    //Normalise gradients
+    vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));
+    p0 *= norm.x;
+    p1 *= norm.y;
+    p2 *= norm.z;
+    p3 *= norm.w;
+
+    // Mix final noise value
+    vec4 m = max(0.6 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), 0.0);
+    m = m * m;
+    return 42.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1),
+                                dot(p2,x2), dot(p3,x3) ) );
+}
+
+void main() {
+    vec2 texcoord = vec2(gl_TexCoord[0]);
+    vec4 color = texture2D(image, texcoord);
+
+    vec3 relBlockPos = mod(blockpos, 32.0) / 32.0;
+    vec2 maskcoord = texcoord + vec2(relBlockPos.x + relBlockPos.y, relBlockPos.z + relBlockPos.y);
+    vec4 maskColor = texture2D(mask, maskcoord);
+    float maskgs = maskColor.r;
+    //maskgs = snoise(blockpos / 32.0 + );
+
+    float r = color.r * gl_Color.r;
+    float g = color.g * gl_Color.g;
+    float b = color.b * gl_Color.b;
+    float a = color.a; // Ignore gl_Color.a as we don't want to make use of that for the dissolve effect
+
+    float pulse = (sin(time / 10.0) + 1.0) / 2.0;
+    vec4 pulseColor = texture2D(mask, maskcoord + time / 1000.0);
+    vec4 pulseColor2 = texture2D(mask, vec2(maskcoord.x - time / 1300.0, maskcoord.y - time / 1300.0));
+    float pulseGreyScale = pulseColor.r + pulseColor2.r / 2.0;
+    g += (1.0 - g) * pulseGreyScale * pulse * 0.2;
+    b += (1.0 - b) * pulseGreyScale * pulse;
+
+//    float exr1 = sin(texcoord.x * 2 + texcoord.y * 10 + time * 0.035);
+//    float exr2 = sin(texcoord.x * 20 + texcoord.y * 2 + time * 0.15);
+//    float exr3 = sin(texcoord.x * 1 + texcoord.y * 90 + time * 0.75);
+
+//    float w1 = (cos(time * 0.1) + 1) * 0.5;
+//    float w2 = (sin(time * 0.08) + 1) * 0.5;
+//    float w3 = (cos(time * 0.001) + 1) * 0.5;
+
+//    float w = w1 + w2 + w3;
+//    float exr = (exr1 * w1 + exr2 * w2 + exr3 * w3) / w * 0.1;
+
+//    r += exr;
+//    g -= exr;
+        
+    if(highlight == 1) {
+        r -= 0.2;
+        b -= 0.2;
+        g -= 0.2;
+    }
+
+    r = max(0, min(1, r));
+    g = max(0, min(1, g));
+    b = max(0, min(1, b));
+
+    if(maskgs <= percentile)
+    	gl_FragColor = vec4(r, g, b, a);
+    else gl_FragColor = vec4(r, g, b, 0);
+}

src/main/resources/assets/effortlessbuilding/shaders/raw_color.frag

@@ -0,0 +1,15 @@
+#version 120
+
+uniform sampler2D bgl_RenderedTexture;
+
+void main() {
+    vec2 texcoord = vec2(gl_TexCoord[0]);
+    vec4 color = texture2D(bgl_RenderedTexture, texcoord);
+
+    float r = color.b * gl_Color.r;
+    float g = color.g * gl_Color.g;
+    float b = color.r * gl_Color.b;
+    float a = color.a * gl_Color.a;
+
+    gl_FragColor = vec4(r, g, b, a);
+}