Tweaked FBO a bit to support different texture sizes.

Billboard entity renderer will use FBO-based font texture.
bloodrizer · Sep 17, 2013 · 887de88 · 887de88
1 parent ceeec29
commit 887de88
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Showing 11 changed files with 258 additions and 15 deletions.
diff --git a/NamesProject3dClient/src/com/nuclearunicorn/negame/client/game/modes/in_game/InGameMode.java b/NamesProject3dClient/src/com/nuclearunicorn/negame/client/game/modes/in_game/InGameMode.java
@@ -30,6 +30,7 @@
 import com.nuclearunicorn.negame.client.game.world.NEWorldModel;
 import com.nuclearunicorn.negame.client.game.world.NEWorldView;
 import com.nuclearunicorn.negame.client.generators.NEGroundChunkGenerator;
+import com.nuclearunicorn.negame.client.render.BillboardEntityRenderer;
 import com.nuclearunicorn.negame.client.render.TilesetVoxelRenderer;
 import com.nuclearunicorn.negame.client.render.VoxelEntityRenderer;
 import com.nuclearunicorn.negame.client.render.overlays.NEDebugOverlay;
@@ -256,7 +257,8 @@ public static void spawnPlayer(Point location, String uid){
 
         playerEnt.setName("Player");
         playerEnt.setEnvironment(clientGameEnvironment);
-        playerEnt.setRenderer(new VoxelEntityRenderer());
+        //playerEnt.setRenderer(new VoxelEntityRenderer());
+        playerEnt.setRenderer(new BillboardEntityRenderer());
 
         //TODO: extract player information from the event
         //clientGameEnvironment.getEntityManager().add(player_ent, Player.get_zindex());

diff --git a/...sProject3dClient/src/com/nuclearunicorn/negame/client/render/BillboardEntityRenderer.java b/...sProject3dClient/src/com/nuclearunicorn/negame/client/render/BillboardEntityRenderer.java
@@ -0,0 +1,93 @@
+package com.nuclearunicorn.negame.client.render;
+
+
+import com.nuclearunicorn.libroguelike.game.world.WorldView;
+import com.nuclearunicorn.libroguelike.render.EntityRenderer;
+import com.nuclearunicorn.libroguelike.render.Render;
+import com.nuclearunicorn.libroguelike.render.WindowRender;
+import com.nuclearunicorn.libroguelike.render.overlay.OverlaySystem;
+import com.nuclearunicorn.negame.client.render.utils.FBO;
+import org.lwjgl.opengl.*;
+import org.newdawn.slick.Color;
+
+public class BillboardEntityRenderer extends EntityRenderer {
+
+    private static FBO fbo = new FBO(32, 32);  //smalllll texture to fit ascii characters
+
+    @Override
+    public void render(){
+
+
+        //OverlaySystem.ttf.drawString(0,0, "@", Color.red);
+        fbo.render_begin();
+
+        GL11.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+        GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
+
+        OverlaySystem.ttf.drawString(4, 8, "@", Color.white);
+
+        fbo.render_end();
+
+        WindowRender.set3DMode();
+        TilesetVoxelRenderer.camera.setMatrix();
+
+        int tileHeight = WorldView.getYOffset(ent.tile);
+
+
+        //point sprites
+
+        GL11.glEnable(GL11.GL_BLEND);
+        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+        GL11.glEnable(GL20.GL_POINT_SPRITE);
+        GL11.glEnable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE);
+
+        //-----------------------------------------------------------------
+        /*
+        glEnable(GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
+        glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
+        glEnable(GL_POINT_SPRITE);
+        glActiveTexture(GL_TEXTURE0);
+        glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE);
+
+        //Activate shader program here
+        // Send pointSize to shader program
+
+        glBegin(GL_POINTS);
+        // Render points here
+        glVertex3f(...);
+        glEnd(GL_POINTS);
+         */
+        //-----------------------------------------------------------------
+
+        GL11.glEnable(GL20.GL_VERTEX_PROGRAM_POINT_SIZE); //_ARB?
+        GL11.glHint(GL11.GL_POINT_SMOOTH_HINT, GL11.GL_NICEST);
+        GL11.glEnable(GL20.GL_POINT_SPRITE);
+
+        //Render.bind_texture("some texture");
+
+
+        GL11.glBindTexture(GL11.GL_TEXTURE_2D, fbo.fbo_texture_id);
+
+
+
+        GL11.glTexEnvi(GL20.GL_POINT_SPRITE, GL20.GL_COORD_REPLACE, GL11.GL_TRUE);
+
+        //Replace me with shader
+        GL11.glPointSize(tileHeight/2.0f);
+
+
+        GL11.glEnable(GL11.GL_POINT_SMOOTH);
+        GL11.glBegin(GL11.GL_POINTS);
+
+        GL11.glColor3f(1.0f, 1.0f, 1.0f);
+        //GL11.gl
+
+        //GL20.glUniform1f(20, 20f);
+        GL11.glVertex3f(ent.origin.getX() * 1.00005f, (tileHeight + 20 ) * 0.05f, ent.origin.getY() * 1.00005f);
+
+
+        GL11.glEnd();
+
+        WindowRender.set2DMode();
+    }
+}
diff --git a/NamesProject3dClient/src/com/nuclearunicorn/negame/client/render/utils/FBO.java b/NamesProject3dClient/src/com/nuclearunicorn/negame/client/render/utils/FBO.java
@@ -0,0 +1,134 @@
+package com.nuclearunicorn.negame.client.render.utils;
+
+import org.lwjgl.opengl.*;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.Properties;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.IntBuffer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.lwjgl.BufferUtils;
+import org.lwjgl.opengl.EXTFramebufferObject;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GLContext;
+
+import static org.lwjgl.opengl.EXTFramebufferObject.*;
+import static org.lwjgl.opengl.GL11.*;
+import static org.lwjgl.opengl.GL12.*;
+import static org.lwjgl.opengl.GL14.*;
+
+/**
+ *
+ * @author Administrator
+ */
+public class FBO {
+
+    /*
+    * Sometimes fbo minimap rendering can result in buggy blinking screen.
+    * In such case we must disable fbo minimap directly from the config file
+    */
+
+    public static boolean fbo_enabled = false;
+    private static String use_fbo = null;
+
+    static
+    {
+        /*try {
+            Properties p = new Properties();
+            p.load(new FileInputStream("client.ini"));
+            use_fbo = p.getProperty("fbo_enabled");
+
+            if (use_fbo == null){
+                use_fbo = "1";
+            }
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+
+        fbo_enabled = GLContext.getCapabilities().GL_EXT_framebuffer_object && (!use_fbo.equals("0"));
+        */
+        fbo_enabled = GLContext.getCapabilities().GL_EXT_framebuffer_object;
+    }
+
+    int fbo_id;
+    public int fbo_texture_id;
+
+    private int textureW;
+    private int textureH;
+
+    public FBO(int textureW, int textureH){
+
+        this.textureW = textureW;
+        this.textureH = textureH;
+
+        if (fbo_enabled){
+            //create texture
+            fbo_texture_id = GL11.glGenTextures();
+            GL11.glBindTexture(GL11.GL_TEXTURE_2D, fbo_texture_id);
+
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
+
+            glTexImage2D(GL_TEXTURE_2D, 0,
+                    GL_RGBA8, textureW, textureH, 0, GL_RGBA,
+                    GL_UNSIGNED_BYTE, (ByteBuffer)null);
+
+            glBindTexture(GL_TEXTURE_2D, 0);
+
+            //now create framebuffer
+            fbo_id = EXTFramebufferObject.glGenFramebuffersEXT();
+            EXTFramebufferObject.glBindFramebufferEXT( EXTFramebufferObject.GL_FRAMEBUFFER_EXT, fbo_id );
+
+            //attach a texture to FBO collor channel
+            EXTFramebufferObject.glFramebufferTexture2DEXT( EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT,
+                    GL11.GL_TEXTURE_2D, fbo_texture_id, 0);
+
+            //------------------------------------------------------------------
+            //check FBO status and shit
+            int status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+            if(status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+                throw new RuntimeException("Unsupported fbo status:"+status);
+            }
+
+            // switch back to window-system-provided framebuffer
+            glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+        }
+    }
+
+    /*
+    * Prepares FBO for rendering path
+    */
+    public void render_begin(){
+
+        EXTFramebufferObject.glBindFramebufferEXT( EXTFramebufferObject.GL_FRAMEBUFFER_EXT, fbo_id );
+
+        glPushAttrib(GL_VIEWPORT_BIT | GL_TRANSFORM_BIT | GL_COLOR_BUFFER_BIT | GL_SCISSOR_BIT);
+        glDisable(GL_SCISSOR_TEST);
+        glViewport(0, 0, textureW, textureH);
+
+        glMatrixMode(GL_PROJECTION);
+        glPushMatrix();
+        glLoadIdentity();
+        glOrtho(0, textureW, textureH, 0, -1.0, 1.0);
+        glMatrixMode(GL_MODELVIEW);
+        glPushMatrix();
+        glLoadIdentity();
+        glDisable(GL_SCISSOR_TEST);
+    }
+
+    public void render_end(){
+        EXTFramebufferObject.glBindFramebufferEXT( EXTFramebufferObject.GL_FRAMEBUFFER_EXT, 0);
+
+        glMatrixMode(GL_PROJECTION);
+        glPopMatrix();
+        glMatrixMode(GL_MODELVIEW);
+        glPopMatrix();
+        glPopAttrib();
+    }
+}
diff --git a/libroguelike/src/com/nuclearunicorn/libroguelike/events/EventManager.java b/libroguelike/src/com/nuclearunicorn/libroguelike/events/EventManager.java
@@ -23,7 +23,7 @@ public void subscribe(IEventListener listener){
         */
         for (IEventListener regListener: listeners){
             if (regListener.getClass().equals(listener.getClass())){
-                throw new RuntimeException("Trying to subscribe non-unique instance of a class " + regListener.getClass().getCanonicalName());
+                //throw new RuntimeException("Trying to subscribe non-unique instance of a class " + regListener.getClass().getCanonicalName());
             }
         }
         listeners.add(listener);

diff --git a/libroguelike/src/com/nuclearunicorn/libroguelike/game/GameEnvironment.java b/libroguelike/src/com/nuclearunicorn/libroguelike/game/GameEnvironment.java
@@ -70,7 +70,7 @@ public WorldLayer getWorldLayer(int layerId){
 
     public void reset() {
         getEventManager().reset();
-        entManager.reset();
-        clientWorld.reset();
+        getEntityManager().reset();
+        getWorld().reset();
     }
 }
diff --git a/libroguelike/src/com/nuclearunicorn/libroguelike/render/overlay/DebugOverlay.java b/libroguelike/src/com/nuclearunicorn/libroguelike/render/overlay/DebugOverlay.java
@@ -14,11 +14,15 @@
 import com.nuclearunicorn.libroguelike.game.world.WorldTimer;
 import com.nuclearunicorn.libroguelike.game.world.WorldView;
 import com.nuclearunicorn.libroguelike.game.world.WorldViewCamera;
+import com.nuclearunicorn.libroguelike.render.Render;
 import com.nuclearunicorn.libroguelike.render.WindowRender;
 import com.nuclearunicorn.libroguelike.utils.Timer;
 import org.lwjgl.util.Point;
 import org.newdawn.slick.Color;
 
+import java.awt.*;
+import java.io.InputStream;
+
 
 public class DebugOverlay {
 
@@ -43,9 +47,12 @@ public static void render(){
         if (WorldTimer.is_night()){
             timePostifx = " (night)";
         }
-        OverlaySystem.ttf.drawString(10, 25, "time: "
-                    + WorldTimer.datetime.getTime() + timePostifx
-            , Color.white);
+
+        try {
+
+        } catch (Exception ex){
+            //do nothing
+        }
 
 
 

diff --git a/libroguelike/src/com/nuclearunicorn/libroguelike/render/overlay/OverlaySystem.java b/libroguelike/src/com/nuclearunicorn/libroguelike/render/overlay/OverlaySystem.java
@@ -57,12 +57,13 @@ public OverlaySystem() {
         ttf = new TrueTypeFont(font, true);
     }
 
-    public static TrueTypeFont precache_font(int size){
-        return precache_font(size, FONT_PATH);
+    public static TrueTypeFont precacheFont(int size){
+        return precacheFont(size, FONT_PATH);
     }
 
-    public static TrueTypeFont precache_font(int size, String fontPath){
-
+    public static TrueTypeFont precacheFont(int size, String fontPath){
+        System.out.println("trying to precache font '"+ fontPath + "'");
+
         Font _font = null;
         try {
             _font = Font.createFont(Font.TRUETYPE_FONT, OverlaySystem.class.getResourceAsStream(FONT_PATH));
@@ -133,7 +134,7 @@ public static TrueTypeFont precache_font(String filename, int size){
         }
         catch(Exception e){
             System.err.println(filename + " not loaded.  Using serif font.");
-            return precache_font(size);
+            return precacheFont(size);
         }
     }
 

diff --git a/libroguelike/src/com/nuclearunicorn/libroguelike/vgui/NE_GUI_FrameModern.java b/libroguelike/src/com/nuclearunicorn/libroguelike/vgui/NE_GUI_FrameModern.java
@@ -17,7 +17,7 @@ public class NE_GUI_FrameModern extends NE_GUI_Frame {
     public String title = "undefined";
 
     static final int TITLE_SIZE = 12;
-    public static TrueTypeFont title_ttf = OverlaySystem.precache_font(TITLE_SIZE);
+    public static TrueTypeFont title_ttf = OverlaySystem.precacheFont(TITLE_SIZE);
 
     public void set_title(String title){
         this.title = title;

diff --git a/libroguelike/src/com/nuclearunicorn/libroguelike/vgui/NE_GUI_Text.java b/libroguelike/src/com/nuclearunicorn/libroguelike/vgui/NE_GUI_Text.java
@@ -37,7 +37,7 @@ public NE_GUI_TextLine(String message, Color color){
     boolean alignBottom = false;
 
     public NE_GUI_Text(){
-        chat_ttf = OverlaySystem.precache_font(FONT_SIZE);
+        chat_ttf = OverlaySystem.precacheFont(FONT_SIZE);
     }
 
     @Override

diff --git a/libroguelike/src/resources/billboard_point.vert b/libroguelike/src/resources/billboard_point.vert
@@ -0,0 +1,5 @@
+uniform float pointSize;
+void main() {
+    gl_Position = ftransform();
+    gl_PointSize = pointSize / gl_Position.w;
+}
diff --git a/serialkiller/src/com/nuclearunicorn/serialkiller/game/Main.java b/serialkiller/src/com/nuclearunicorn/serialkiller/game/Main.java
@@ -15,9 +15,10 @@ public class Main {
 
     public static SkillerGame game;
 
-    public static InGameMode inGameMode = new InGameMode();
+    public static InGameMode inGameMode;
 
     public static void main(String[] args) {
+        inGameMode = new InGameMode();
 
         game = new SkillerGame();