Example usage for org.lwjgl.opengl GL11 glClearColor

List of usage examples for org.lwjgl.opengl GL11 glClearColor

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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:io.flob.blackheart.DisplayDriver.java

License:Open Source License

private void init_GL() {
    GL11.glClearColor(0.1F, 0.1F, 0.1F, 1.0F);
    GL11.glEnable(GL11.GL_BLEND);/*from   w  w  w .  j a v  a  2  s  . co m*/
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GLU.gluPerspective(60.0f, ((float) Display.getWidth()) / ((float) Display.getHeight()), 0.1f, 40.0f);
}

From source file:io.flob.clicker.DisplayDriver.java

License:Open Source License

private void init_GL() {
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();// w w w. java  2  s  . c o m
    GL11.glOrtho(0, width, height, 0, -1, 1);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glShadeModel(GL11.GL_SMOOTH);
    GL11.glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
    GL11.glClearDepth(1.0f);
    GL11.glEnable(GL11.GL_DEPTH_TEST);
    GL11.glDepthFunc(GL11.GL_LEQUAL);
    GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
}

From source file:io.github.SolidStudiosTeam.Flicker.engine.GameLoop.java

License:Open Source License

@Override
public void initGL() {
    /* Enable 2D textures. */
    GL11.glEnable(GL11.GL_TEXTURE_2D);/* w  w  w . j  a  v  a 2s  . com*/

    /* Make all models smoothly textured. */
    GL11.glShadeModel(GL11.GL_SMOOTH);

    /* Set the background color to that signature blue. */
    GL11.glClearColor(0.9f, 1.0f, 1.0f, 0.0f);

    /* Set the clear depth to all-the-way */
    GL11.glClearDepth(1.0);

    /* Enable the depth system. */
    GL11.glEnable(GL11.GL_DEPTH_TEST);

    /* Set the function for depth to GL_LEQUAL. */
    GL11.glDepthFunc(GL11.GL_LEQUAL);

    //  GL11.glEnable(GL11.GL_BLEND);
    //GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    /* Enable face culling, basically don't render this face relative to the camera's position. */
    // GL11.glEnable(GL11.GL_CULL_FACE);

    /* Set OpenGL to cull the back face of our spatials. */
    // GL11.glCullFace(GL11.GL_BACK);

    /* Set the matrix mode to projection. */
    GL11.glMatrixMode(GL11.GL_PROJECTION);

    /* Reset the OpenGL configuration, loading our above prefrences. */
    GL11.glLoadIdentity();

    /* Set the perspective. */
    GLU.gluPerspective(45.0f, (float) displayMode.getWidth() / (float) displayMode.getHeight(), 0.1f, 100.0f);

    /* Set the matrix mode to be model view. */
    GL11.glMatrixMode(GL11.GL_MODELVIEW);

    /* Set the perspective correction hint to finest quality. */
    GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
}

From source file:io.root.gfx.glutils.GL.java

License:Apache License

public static void glClearColor(float red, float green, float blue, float alpha) {
    GL11.glClearColor(red, green, blue, alpha);
}

From source file:ion2d.INDirector.java

License:Open Source License

protected void initGL() {
    setAlphaBlending(true);
    setDepthTest(true);
    setProjection(ProjectionFormat.DirectorProjection2D);

    GL11.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
}

From source file:ion2d.INGrabber.java

License:Open Source License

/**
 * Before Rendering of grabbing the screen
 *///from   w  w w.jav  a  2  s .co 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);
}

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.  ja  v a 2  s.co  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();
}

From source file:jake2.desktop.LWJGLAdapter.java

License:Open Source License

@Override
public void glClearColor(float r, float g, float b, float a) {
    GL11.glClearColor(r, g, b, a);
}

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);
}

From source file:junkdisplay.JunkDisplayLWJGL.java

protected void initGLLWJGL() {

    if (!LEVEL_EDITOR) {
        GL11.glViewport(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
    } else {//  w w  w.j a  va 2s  .  c om
        GL11.glViewport(0, 0, 1500, 800);
    }
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();

    if (!LEVEL_EDITOR) {
        GL11.glOrtho(0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 1, -1);
    } else {
        GL11.glOrtho(0, 1500, 800, 0, 1, -1);
    }
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
    initTextures();
    GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    createModel();
}