Example usage for org.lwjgl.opengl GL11 glClear

Introduction

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

Prototype

public static void glClear(@NativeType("GLbitfield") int mask) 

Source Link

Document

Sets portions of every pixel in a particular buffer to the same value.

Usage

From source file:ion2d.INGrabber.java

License:Open Source License

/**
 * Before Rendering of grabbing the screen
 *///from  ww w  . ja v  a  2 s.  c  o m
public void beforeRender() {
    GL11.glGetInteger(GL30.GL_FRAMEBUFFER_BINDING, this.oldBufferObject);
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, this.bufferObject.get(0));

    GL11.glClearColor(0, 0, 0, 0);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
}

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From source file:itdelatrisu.opsu.render.CurveRenderState.java

License:Open Source License

/**
 * Draw a curve to the screen that's tinted with `color`. The first time
 * this is called this caches the image result of the curve and on subsequent
 * runs it just draws the cached copy to the screen.
 * @param color tint of the curve/*  ww w.  j a  v a  2 s . c o  m*/
 * @param borderColor the curve border color
 * @param curve the points along the curve to be drawn
 */
public void draw(Color color, Color borderColor, Vec2f[] curve) {
    float alpha = color.a;

    // if this curve hasn't been drawn, draw it and cache the result
    if (fbo == null) {
        FrameBufferCache cache = FrameBufferCache.getInstance();
        Rendertarget mapping = cache.get(hitObject);
        if (mapping == null)
            mapping = cache.insert(hitObject);
        fbo = mapping;

        int oldFb = GL11.glGetInteger(EXTFramebufferObject.GL_FRAMEBUFFER_BINDING_EXT);
        int oldTex = GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);

        //glGetInteger requires a buffer of size 16, even though just 4
        //values are returned in this specific case
        IntBuffer oldViewport = BufferUtils.createIntBuffer(16);
        GL11.glGetInteger(GL11.GL_VIEWPORT, oldViewport);
        EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, fbo.getID());
        GL11.glViewport(0, 0, fbo.width, fbo.height);
        GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
        GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
        Colors.WHITE_FADE.a = 1.0f;
        this.draw_curve(color, borderColor, curve);
        color.a = 1f;

        GL11.glBindTexture(GL11.GL_TEXTURE_2D, oldTex);
        EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, oldFb);
        GL11.glViewport(oldViewport.get(0), oldViewport.get(1), oldViewport.get(2), oldViewport.get(3));
        Colors.WHITE_FADE.a = alpha;
    }

    // draw a fullscreen quad with the texture that contains the curve
    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_TEXTURE_1D);
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, fbo.getTextureID());
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glColor4f(1.0f, 1.0f, 1.0f, alpha);
    GL11.glTexCoord2f(1.0f, 1.0f);
    GL11.glVertex2i(fbo.width, 0);
    GL11.glTexCoord2f(0.0f, 1.0f);
    GL11.glVertex2i(0, 0);
    GL11.glTexCoord2f(0.0f, 0.0f);
    GL11.glVertex2i(0, fbo.height);
    GL11.glTexCoord2f(1.0f, 0.0f);
    GL11.glVertex2i(fbo.width, fbo.height);
    GL11.glEnd();
}

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From source file:jake2.desktop.LWJGLAdapter.java

License:Open Source License

@Override
public void glClear(int bits) {
    GL11.glClear(bits);
}

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From source file:jpcsp.graphics.RE.RenderingEngineLwjgl.java

License:Open Source License

@Override
public void clear(float red, float green, float blue, float alpha) {
    GL11.glClearColor(red, green, blue, alpha);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
}

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From source file:junkdisplay.JunkDisplayLWJGL.java

protected void renderGL(Point locs) {
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);

    GL11.glPushMatrix();/*from  w  ww  .j ava 2s . com*/
    {
        drawBackground(locs);
        drawForeGround();
        if (LEVEL_EDITOR == false) {
            if (e.LEVEL_COMPLETE == false) {
                //drawShadow(locs);
            }
        }
        if (DEBUG) {
            drawDebug();
        }
        drawUI();
    }
    GL11.glPopMatrix();
}

---

From source file:kuake2.render.lwjgl.Main.java

License:Open Source License

/**
 * R_SetupFrame/*from w ww  .  j  a va2 s  . co  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;
        }
    }

    for (int i = 0; i < 4; i++)
        v_blend[i] = r_newrefdef.blend[i];

    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:kuake2.render.lwjgl.Main.java

License:Open Source License

/**
 * R_Clear//  ww  w .j  av a2s.  c  om
 */
void R_Clear() {
    if (gl_ztrick.value != 0.0f) {

        if (gl_clear.value != 0.0f) {
            GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
        }

        trickframe++;
        if ((trickframe & 1) != 0) {
            gldepthmin = 0;
            gldepthmax = 0.49999f;
            GL11.glDepthFunc(GL11.GL_LEQUAL);
        } else {
            gldepthmin = 1;
            gldepthmax = 0.5f;
            GL11.glDepthFunc(GL11.GL_GEQUAL);
        }
    } else {
        if (gl_clear.value != 0.0f)
            GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
        else
            GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);

        gldepthmin = 0;
        gldepthmax = 1;
        GL11.glDepthFunc(GL11.GL_LEQUAL);
    }
    GL11.glDepthRange(gldepthmin, gldepthmax);
}

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From source file:kuake2.render.lwjgl.Main.java

License:Open Source License

/**
 * R_SetPalette// w ww.  j  a va2s. co  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) << 0;
            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:launcher.Main.java

private void draw() {
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
    drawWorld();
    drawPlayer();
}

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From source file:lwjgl29.GlobalClass.Quad.java

@Override
public void clear() {
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
}

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