Example usage for org.lwjgl.opengl GL11 glClearColor

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glClearColor.

Prototype

public static void glClearColor(@NativeType("GLfloat") float red, @NativeType("GLfloat") float green,
        @NativeType("GLfloat") float blue, @NativeType("GLfloat") float alpha) 

Source Link

Document

Sets the clear value for fixed-point and floating-point color buffers in RGBA mode.

Usage

From source file:org.evilco.emulator.core.graphic.matrix.MonochromeMatrixScreen.java

License:Apache License

/**
 * {@inheritDoc}/*w w  w  . ja  v  a 2 s .co m*/
 */
@Override
public synchronized void draw() {
    // clear screen
    GL11.glClearColor(0, 0, 0, 1);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);

    GL11.glColor3f(1f, 1f, 1f); // TODO: Make color adjustable

    // draw pixels
    for (short y = 0; y < this.height; y++) {
        for (short x = 0; x < this.width; x++) {
            // skip disabled pixels
            if (!this.getPixel(x, y))
                continue;

            // draw
            GL11.glRecti(x, y, (x + 1), (y + 1));
        }
    }
}

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From source file:org.fenggui.example.ExampleBasisLWJGL.java

License:Open Source License

private void glInit(int width, int height) {
    // Go into orthographic projection mode.
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();/*from   ww  w .  j  a  v  a 2  s.co m*/
    GLU.gluOrtho2D(0, width, 0, height);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
    GL11.glViewport(0, 0, width, height);

    //set clear color to ... ugly
    GL11.glClearColor(0.1f, 0.5f, 0.2f, 0.0f);
    //sync frame (only works on windows )   => THAT IS NOT TRUE (ask Rainer)
    Display.setVSyncEnabled(false);
}

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From source file:org.free.jake2.render.lwjgl.Main.java

License:Open Source License

/**
 * R_SetupFrame//from   w  w  w.  ja va  2  s.  c  o  m
 */
void R_SetupFrame() {
    r_framecount++;

    //   build the transformation matrix for the given view angles
    Math3D.VectorCopy(r_newrefdef.vieworg, r_origin);

    Math3D.AngleVectors(r_newrefdef.viewangles, vpn, vright, vup);

    //   current viewcluster
    mleaf_t leaf;
    if ((r_newrefdef.rdflags & Defines.RDF_NOWORLDMODEL) == 0) {
        r_oldviewcluster = r_viewcluster;
        r_oldviewcluster2 = r_viewcluster2;
        leaf = Mod_PointInLeaf(r_origin, r_worldmodel);
        r_viewcluster = r_viewcluster2 = leaf.cluster;

        // check above and below so crossing solid water doesn't draw wrong
        if (leaf.contents == 0) { // look down a bit
            Math3D.VectorCopy(r_origin, temp);
            temp[2] -= 16;
            leaf = Mod_PointInLeaf(temp, r_worldmodel);
            if ((leaf.contents & Defines.CONTENTS_SOLID) == 0 && (leaf.cluster != r_viewcluster2)) {
                r_viewcluster2 = leaf.cluster;
            }
        } else { // look up a bit
            Math3D.VectorCopy(r_origin, temp);
            temp[2] += 16;
            leaf = Mod_PointInLeaf(temp, r_worldmodel);
            if ((leaf.contents & Defines.CONTENTS_SOLID) == 0 && (leaf.cluster != r_viewcluster2)) {
                r_viewcluster2 = leaf.cluster;
            }
        }
    }
    System.arraycopy(r_newrefdef.blend, 0, v_blend, 0, 4);

    c_brush_polys = 0;
    c_alias_polys = 0;

    // clear out the portion of the screen that the NOWORLDMODEL defines
    if ((r_newrefdef.rdflags & Defines.RDF_NOWORLDMODEL) != 0) {
        GL11.glEnable(GL11.GL_SCISSOR_TEST);
        GL11.glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
        GL11.glScissor(r_newrefdef.x, vid.height - r_newrefdef.height - r_newrefdef.y, r_newrefdef.width,
                r_newrefdef.height);
        GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
        GL11.glClearColor(1.0f, 0.0f, 0.5f, 0.5f);
        GL11.glDisable(GL11.GL_SCISSOR_TEST);
    }
}

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From source file:org.free.jake2.render.lwjgl.Main.java

License:Open Source License

/**
 * R_SetPalette//from  w  w  w.  j a v a  2s .c o m
 */
protected void R_SetPalette(byte[] palette) {
    // 256 RGB values (768 bytes)
    // or null
    int i;
    int color = 0;

    if (palette != null) {
        int j = 0;
        for (i = 0; i < 256; i++) {
            color = (palette[j++] & 0xFF);
            color |= (palette[j++] & 0xFF) << 8;
            color |= (palette[j++] & 0xFF) << 16;
            color |= 0xFF000000;
            r_rawpalette[i] = color;
        }
    } else {
        for (i = 0; i < 256; i++) {
            r_rawpalette[i] = d_8to24table[i] | 0xff000000;
        }
    }
    GL_SetTexturePalette(r_rawpalette);

    GL11.glClearColor(0, 0, 0, 0);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
    GL11.glClearColor(1f, 0f, 0.5f, 0.5f);
}

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From source file:org.free.jake2.render.lwjgl.Misc.java

License:Open Source License

void GL_SetDefaultState() {
    GL11.glClearColor(1f, 0f, 0.5f, 0.5f); // original quake2
    //GL11.glClearColor(0, 0, 0, 0); // replaced with black
    GL11.glCullFace(GL11.GL_FRONT);/*from  w  w w.  j  a  v a2  s  .  c  om*/
    GL11.glEnable(GL11.GL_TEXTURE_2D);

    GL11.glEnable(GL11.GL_ALPHA_TEST);
    GL11.glAlphaFunc(GL11.GL_GREATER, 0.666f);

    GL11.glDisable(GL11.GL_DEPTH_TEST);
    GL11.glDisable(GL11.GL_CULL_FACE);
    GL11.glDisable(GL11.GL_BLEND);

    GL11.glColor4f(1, 1, 1, 1);

    GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
    GL11.glShadeModel(GL11.GL_FLAT);

    GL_TextureMode(gl_texturemode.string);
    GL_TextureAlphaMode(gl_texturealphamode.string);
    GL_TextureSolidMode(gl_texturesolidmode.string);

    GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, gl_filter_min);
    GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, gl_filter_max);

    GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL11.GL_REPEAT);
    GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL11.GL_REPEAT);

    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    GL_TexEnv(GL11.GL_REPLACE);

    if (qglPointParameterfEXT) {
        // float[] attenuations = { gl_particle_att_a.value, gl_particle_att_b.value, gl_particle_att_c.value };
        FloatBuffer att_buffer = BufferUtils.createFloatBuffer(4);
        att_buffer.put(0, gl_particle_att_a.value);
        att_buffer.put(1, gl_particle_att_b.value);
        att_buffer.put(2, gl_particle_att_c.value);

        GL11.glEnable(GL11.GL_POINT_SMOOTH);
        GL14.glPointParameterf(EXTPointParameters.GL_POINT_SIZE_MIN_EXT, gl_particle_min_size.value);
        GL14.glPointParameterf(EXTPointParameters.GL_POINT_SIZE_MAX_EXT, gl_particle_max_size.value);
        GL14.glPointParameter(EXTPointParameters.GL_DISTANCE_ATTENUATION_EXT, att_buffer);
    }

    if (qglColorTableEXT && gl_ext_palettedtexture.value != 0.0f) {
        GL11.glEnable(EXTSharedTexturePalette.GL_SHARED_TEXTURE_PALETTE_EXT);

        GL_SetTexturePalette(d_8to24table);
    }

    GL_UpdateSwapInterval();

    /*
     * vertex array extension
     */
    GL11.glEnableClientState(GL11.GL_VERTEX_ARRAY);
    GL13.glClientActiveTexture(GL_TEXTURE0);
    GL11.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
}

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From source file:org.geekygoblin.nedetlesmaki.game.systems.DrawSystem.java

License:Open Source License

@Override
protected void processEntities(ImmutableBag<Entity> entities) {
    GL11.glClearColor(99f / 255f, 201f / 255f, 183f / 255f, 1f);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
    Sort.instance().sort(sprites, zComparator);

    GL11.glPushAttrib(GL11.GL_ENABLE_BIT | GL11.GL_TRANSFORM_BIT | GL11.GL_HINT_BIT | GL11.GL_COLOR_BUFFER_BIT
            | GL11.GL_SCISSOR_BIT | GL11.GL_LINE_BIT | GL11.GL_TEXTURE_BIT);
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glPushMatrix();// www  .  j av a 2 s  .c  o m
    GL11.glLoadIdentity();

    updateViewPort();
    GL11.glViewport(viewPort.x, viewPort.y, viewPort.width, viewPort.height);
    GLU.gluOrtho2D(-VirtualResolution.WIDTH / 2.0f, VirtualResolution.WIDTH / 2.0f,
            VirtualResolution.HEIGHT / 2.0f, -VirtualResolution.HEIGHT / 2.0f);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glPushMatrix();
    GL11.glLoadIdentity();
    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);
    GL11.glDisable(GL11.GL_DEPTH_TEST);
    GL11.glDisable(GL11.GL_LIGHTING);
    GL11.glDisable(GL11.GL_SCISSOR_TEST);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glHint(GL11.GL_LINE_SMOOTH_HINT, GL11.GL_NICEST);

    NedGame game = (NedGame) world;
    Entity ned = game.getNed();
    if (null != ned) {
        Sprite nedSprite = spriteMapper.get(ned);
        Vector nedPos = spriteProjector.project(nedSprite.getPosition());
        GL11.glTranslatef(-nedPos.x, -nedPos.y, 0.0f);
    }

    for (Entity e : backgrounds) {
        LevelBackground level = levelBackgroundMapper.getSafe(e);
        if (null != level) {
            drawLevel(level);
        }
    }

    GL11.glPushMatrix();
    GL11.glScalef(spriteGlobalScale, spriteGlobalScale, 1.0f);
    spriteBatcher.begin();
    for (Entity e : sprites) {
        spriteBatcher.draw(spriteMapper.getSafe(e));
    }
    spriteBatcher.end();
    for (Entity e : sprites) {
        drawSpriteLabel(spriteMapper.getSafe(e));
    }
    GL11.glPopMatrix();

    for (Entity e : uis) {
        MainMenu mainMenu = mainMenuMapper.getSafe(e);
        if (null != mainMenu) {
            nuitRenderer.render(mainMenu.getRoot());
        }
        DialogComponent dialog = dialogMapper.getSafe(e);
        if (null != dialog) {
            nuitRenderer.render(dialog.getRoot());
        }
        InGameUI inGameUI = inGameUIMapper.getSafe(e);
        if (null != inGameUI) {
            nuitRenderer.render(inGameUI.getRoot());
        }
    }
    GL11.glPopMatrix();
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glPopMatrix();
    GL11.glPopAttrib();

}

---

From source file:org.joge.core.draw.Graphics.java

License:Open Source License

public void setBackground(Color color) {
    GL11.glClearColor(color.r, color.g, color.b, color.a);
}

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From source file:org.jtrfp.mtmx.tools.internal.ModelViewerConfiguration.java

License:Open Source License

@Override
public void draw() {
    GL11.glClearColor(0.8f, 0.8f, 0.8f, 0.0f);

    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
    GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);

    GL11.glLoadIdentity();/*  ww w .j a  v a  2 s  .  co  m*/
    GLU.gluLookAt(5.0f, 2.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
    GL11.glRotatef(rot, 0.0f, 1.0f, 0.0f);
    GL11.glRotatef(rot2, 1.0f, 0.0f, 0.0f);
    drawer.draw();

    Keyboard.poll();

    while (Keyboard.next()) {
        if (Keyboard.getEventKeyState()) {
            if (Keyboard.getEventKey() == Keyboard.KEY_ESCAPE) {
                return;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_RIGHT) {
                rot -= 15.0f;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_LEFT) {
                rot += 15.0f;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_UP) {
                rot2 -= 15.0f;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_DOWN) {
                rot2 += 15.0f;
            }

            if (Keyboard.getEventKey() == Keyboard.KEY_T) {
                if (renderMode == GL11.GL_POLYGON) {
                    renderMode = GL11.GL_LINE_LOOP;
                } else {
                    renderMode = GL11.GL_POLYGON;
                }
            }
        }
    }
}

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From source file:org.jtrfp.mtmx.tools.internal.TruckViewerConfiguration.java

License:Open Source License

@Override
public void draw() {
    GL11.glClearColor(0.8f, 0.8f, 0.8f, 0.0f);

    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
    GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);

    GL11.glLoadIdentity();// w ww.jav  a  2s .c  om
    GLU.gluLookAt(5.0f, 2.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
    GL11.glRotatef(rot, 0.0f, 1.0f, 0.0f);
    GL11.glRotatef(rot2, 1.0f, 0.0f, 0.0f);

    truckDrawer.draw();

    Keyboard.poll();

    while (Keyboard.next()) {
        if (Keyboard.getEventKeyState()) {
            if (Keyboard.getEventKey() == Keyboard.KEY_ESCAPE) {
                return;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_RIGHT) {
                rot -= 15.0f;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_LEFT) {
                rot += 15.0f;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_UP) {
                rot2 -= 15.0f;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_DOWN) {
                rot2 += 15.0f;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_A) {
                truckDrawer.setSteerAngle(truckDrawer.getSteerAngle() + 0.1f);
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_D) {
                truckDrawer.setSteerAngle(truckDrawer.getSteerAngle() - 0.1f);
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_T) {
                if (truckDrawer.getRenderMode() == GL11.GL_POLYGON) {
                    truckDrawer.setRenderMode(GL11.GL_LINE_LOOP);
                } else {
                    truckDrawer.setRenderMode(GL11.GL_POLYGON);
                }
            }
        }
    }
}

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From source file:org.jtrfp.mtmx.tools.internal.WorldViewerConfiguration.java

License:Open Source License

@Override
public void draw() {
    GL11.glClearColor(0.8f, 0.8f, 0.8f, 0.0f);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
    GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
    GL11.glLoadIdentity();//w  w w  .j  a  v  a2 s. c o  m

    float e = terrainDrawer.getTerrainMap().getElevationAt(1, 1) * IDrawer.WORLD_SCALE_XZ;

    GLU.gluLookAt(-1.0f + lookX * IDrawer.WORLD_SCALE_XZ, 1.0f + e, -1.0f + lookZ * IDrawer.WORLD_SCALE_XZ,
            0.0f + lookX * IDrawer.WORLD_SCALE_XZ, 0.0f + e, 0.0f + lookZ * IDrawer.WORLD_SCALE_XZ, 0.0f, 1.0f,
            0.0f);

    GL11.glColor3f(0.0f, 1.0f, 0.0f);
    terrainDrawer.draw();

    Keyboard.poll();

    while (Keyboard.next()) {
        if (Keyboard.getEventKeyState()) {
            if (Keyboard.getEventKey() == Keyboard.KEY_ESCAPE) {
                return;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_RIGHT) {
                lookX -= 5;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_LEFT) {
                lookX += 5;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_UP) {
                lookZ += 5;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_DOWN) {
                lookZ -= 5;
            }
            if (Keyboard.getEventKey() == Keyboard.KEY_T) {
                if (terrainDrawer.getRenderMode() == GL11.GL_TRIANGLES) {
                    terrainDrawer.setRenderMode(GL11.GL_LINE_LOOP);
                } else {
                    terrainDrawer.setRenderMode(GL11.GL_TRIANGLES);
                }
            }
        }
    }
}

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