Example usage for org.lwjgl.opengl GL11 glRasterPos2f

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glRasterPos2f.

Prototype

public static native void glRasterPos2f(@NativeType("GLfloat") float x, @NativeType("GLfloat") float y);

Source Link

Document

Float version of #glRasterPos2i RasterPos2i .

Usage

From source file:name.martingeisse.ecotools.simulator.ui.console.OpenGlCharacterGenerator.java

License:Open Source License

/**
 * Draws a block using the current OpenGL context and the specified raster position.
 * Implementation issues prevent to just re-use the current raster position.
 * /*  w  w  w.  j av a 2  s  .co  m*/
 * @param x the x raster position to set
 * @param y the y raster position to set
 * @param characterCode the character code
 * @param foreground the foreground color index
 * @param background the background color index
 */
public void drawBlock(float x, float y, int characterCode, int foreground, int background) {

    /**
     * Implementation note: glColor3f(...) only sets the color in a "thin" way -
     * it does not push the new color down the rendering pipeline. Drawing a normal
     * primitive usually then takes the new color with it. Unfortunately, glBitmap(...)
     * is NOT such a primitive, thus the new color would never take effect as long
     * as only bitmaps are drawn. However, glRasterPos2f(...) also takes the new color
     * with it, so we explicitly set the raster position in this method just to
     * set the color.
     */
    OpenGlColors.useColor(background);
    GL11.glRasterPos2f(x, y);
    buffer.position(characterCode * 2 * 16 * 4 + 16 * 4);
    GL11.glBitmap(8, 16, 0.0f, 0.0f, 0.0f, 0.0f, buffer);

    OpenGlColors.useColor(foreground);
    GL11.glRasterPos2f(x, y);
    buffer.position(characterCode * 2 * 16 * 4);
    GL11.glBitmap(8, 16, 0.0f, 0.0f, 0.0f, 0.0f, buffer);

}

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From source file:tk.ivybits.engine.gl.GL.java

License:Open Source License

public static void glRasterPos2f(float a, float b) {
    GL11.glRasterPos2f(a, b);
}

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