Example usage for org.lwjgl.opengl GL11 glBegin

Introduction

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

Prototype

public static native void glBegin(@NativeType("GLenum") int mode);

Source Link

Document

Begins the definition of vertex attributes of a sequence of primitives to be transferred to the GL.

Usage

From source file:de.keyle.dungeoncraft.editor.editors.world.render.Renderer.java

License:Open Source License

/**
 * Renders a nonstandard horizontal rectangle (nonstandard referring primarily to
 * the texture size (ie: when we're not pulling a single element out of a 16x16
 * grid).//  ww w  . jav  a  2  s  . c  o  m
 *
 * @param tx  X index within the texture
 * @param ty  Y index within the texture
 * @param tdx Width of texture
 * @param tdy Height of texture
 * @param x1
 * @param z1
 * @param x2
 * @param z2
 * @param y
 */
public static void renderNonstandardHorizontal(float tx, float ty, float tdx, float tdy, float x1, float z1,
        float x2, float z2, float y) {
    GL11.glBegin(GL11.GL_TRIANGLE_STRIP);
    GL11.glTexCoord2f(tx, ty);
    GL11.glVertex3f(x1, y, z1);

    GL11.glTexCoord2f(tx + tdx, ty);
    GL11.glVertex3f(x1, y, z2);

    GL11.glTexCoord2f(tx, ty + tdy);
    GL11.glVertex3f(x2, y, z1);

    GL11.glTexCoord2f(tx + tdx, ty + tdy);
    GL11.glVertex3f(x2, y, z2);
    GL11.glEnd();
}

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From source file:de.keyle.dungeoncraft.editor.editors.world.render.Renderer.java

License:Open Source License

/**
 * Render a surface on a horizontal plane; pass in all four verticies.  This can result,
 * obviously, in non-rectangular and non-orthogonal shapes.
 *
 * @param tx//from w ww  . j a va 2s  .co  m
 * @param ty
 * @param tdx
 * @param tdy
 * @param x1
 * @param z1
 * @param x2
 * @param z2
 * @param x3
 * @param z3
 * @param x4
 * @param z4
 * @param y
 */
public static void renderHorizontalAskew(float tx, float ty, float tdx, float tdy, float x1, float z1, float x2,
        float z2, float x3, float z3, float x4, float z4, float y) {
    GL11.glBegin(GL11.GL_TRIANGLE_STRIP);
    GL11.glTexCoord2f(tx, ty);
    GL11.glVertex3f(x1, y, z1);

    GL11.glTexCoord2f(tx + tdx, ty);
    GL11.glVertex3f(x2, y, z2);

    GL11.glTexCoord2f(tx, ty + tdy);
    GL11.glVertex3f(x3, y, z3);

    GL11.glTexCoord2f(tx + tdx, ty + tdy);
    GL11.glVertex3f(x4, y, z4);
    GL11.glEnd();
}

---

From source file:de.keyle.dungeoncraft.editor.editors.world.render.Renderer.java

License:Open Source License

/**
 * Renders a block sized face with the given facing.
 *
 * @param dimensions Texture dimensions//from  www.  j  ava  2  s.  c o  m
 * @param x
 * @param y
 * @param z
 * @param facing     The face that should be drawn
 */
public static void renderBlockFace(TextureDimensions dimensions, float x, float y, float z, Facing facing) {
    float curFace[][];
    switch (facing) {
    case UP:
        curFace = new float[][] { { 0f, 1f, 1f }, { 0f, 1f, 0f }, { 1f, 1f, 1f }, { 1f, 1f, 0f } };
        break;
    case DOWN:
        curFace = new float[][] { { 0f, 0f, 1f }, { 0f, 0f, 0f }, { 1f, 0f, 1f }, { 1f, 0f, 0f } };
        break;
    case NORTH:
        curFace = new float[][] { { 0f, 1f, 0f }, { 1f, 1f, 0f }, { 0f, 0f, 0f }, { 1f, 0f, 0f } };
        break;
    case SOUTH:
        curFace = new float[][] { { 0f, 1f, 1f }, { 1f, 1f, 1f }, { 0f, 0f, 1f }, { 1f, 0f, 1f } };
        break;
    case WEST:
        curFace = new float[][] { { 0f, 1f, 1f }, { 0f, 1f, 0f }, { 0f, 0f, 1f }, { 0f, 0f, 0f } };
        break;
    case EAST:
        curFace = new float[][] { { 1f, 1f, 1f }, { 1f, 1f, 0f }, { 1f, 0f, 1f }, { 1f, 0f, 0f } };
        break;
    default:
        return;
    }

    GL11.glBegin(GL11.GL_TRIANGLE_STRIP);
    GL11.glTexCoord2f(dimensions.getTexLeft(), dimensions.getTexTop());
    GL11.glVertex3f(x + curFace[0][0], y + curFace[0][1], z + curFace[0][2]);

    GL11.glTexCoord2f(dimensions.getTexLeft() + dimensions.getTexWidth(), dimensions.getTexTop());
    GL11.glVertex3f(x + curFace[1][0], y + curFace[1][1], z + curFace[1][2]);

    GL11.glTexCoord2f(dimensions.getTexLeft(), dimensions.getTexTop() + dimensions.getTexHeight());
    GL11.glVertex3f(x + curFace[2][0], y + curFace[2][1], z + curFace[2][2]);

    GL11.glTexCoord2f(dimensions.getTexLeft() + dimensions.getTexWidth(),
            dimensions.getTexTop() + dimensions.getTexHeight());
    GL11.glVertex3f(x + curFace[3][0], y + curFace[3][1], z + curFace[3][2]);
    GL11.glEnd();
}

---

From source file:de.kitsunealex.projectx.client.render.RenderTruncatedIcosahedron.java

License:Open Source License

private void generate() {
    int[] s = { 1, -1 };

    for (int i = 0; i < 4; i++) {
        VERTS[i] = new Vector3(0D, s[(i / 2)], s[(i % 2)] * 3 * MathHelper.phi);
    }// w ww  .j  a  v  a2  s  .  c om

    for (int i = 0; i < 8; i++) {
        VERTS[(i + 4)] = new Vector3(s[(i / 4)] * 2, s[(i / 2 % 2)] * 4.2360679999999995D,
                s[(i % 2)] * MathHelper.phi);
        VERTS[(i + 12)] = new Vector3(s[(i / 4)], s[(i / 2 % 2)] * 3.6180339999999998D,
                s[(i % 2)] * 2 * MathHelper.phi);
    }

    for (int i = 0; i < 20; i++) {
        VERTS[(i + 20)] = new Vector3(VERTS[i].y, VERTS[i].z, VERTS[i].x);
        VERTS[(i + 40)] = new Vector3(VERTS[i].z, VERTS[i].x, VERTS[i].y);
    }

    LIST_INDEX = GL11.glGenLists(2);
    GL11.glNewList(LIST_INDEX, GL11.GL_COMPILE);
    GL11.glBegin(GL11.GL_LINE_BIT);

    for (int rot = 0; rot < 3; rot++) {
        for (int i = 0; i < 4; i++) {
            pentagon(rot, i);
        }
    }

    GL11.glEnd();
    GL11.glEndList();
    GL11.glNewList(LIST_INDEX + 1, GL11.GL_COMPILE);
    GL11.glBegin(GL11.GL_LINE_BIT);

    for (int rot = 0; rot < 3; rot++) {
        for (int i = 0; i < 4; i++) {
            hexagon1(rot, i);
        }
    }

    for (int i = 0; i < 8; i++) {
        hexagon2(i);
    }

    GL11.glEnd();
    GL11.glEndList();
}

---

From source file:displayexample.Entities.Box2D.java

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

    // set the color of the quad (R,G,B,A)
    GL11.glColor3f(0.5f, 0.5f, 1.0f);/*  w w w . j av a2 s.  c  o m*/

    // draw quad
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glVertex2f(x, y);
    GL11.glVertex2f(x + size, y);
    GL11.glVertex2f(x + size, y + size);
    GL11.glVertex2f(x, y + size);
    GL11.glEnd();
}

---

From source file:dripdisplay.DripDisplayLWJGL.java

private void drawTile(Rectangle bounds, Rectangle2D.Float r) {
    GL11.glBegin(GL11.GL_QUADS);

    GL11.glTexCoord2f(r.x, r.y + r.height);
    GL11.glVertex2f(bounds.getX(), bounds.getY() + bounds.getHeight());

    GL11.glTexCoord2f(r.x + r.width, r.y + r.height);
    GL11.glVertex2f(bounds.getX() + bounds.getWidth(), bounds.getY() + bounds.getHeight());

    GL11.glTexCoord2f(r.x + r.width, r.y);
    GL11.glVertex2f(bounds.getX() + bounds.getWidth(), bounds.getY());

    GL11.glTexCoord2f(r.x, r.y);/*from   w ww. j  a va  2s .  c om*/
    GL11.glVertex2f(bounds.getX(), bounds.getY());

    GL11.glEnd();
}

---

From source file:eb.core.gui.GuiHelper.java

License:LGPL

public static void drawTexturedRect(int x, int y, int width, int height, int textureSize, int[] u, int[] v) {
    float uf[] = new float[] { (float) u[0] / (float) textureSize, (float) u[1] / (float) textureSize };
    float vf[] = new float[] { (float) v[0] / (float) textureSize, (float) v[1] / (float) textureSize };

    GL11.glBegin(GL11.GL_QUADS);
    GL11.glTexCoord2f(uf[0], vf[0]);/*from ww  w  . ja  v  a  2s  .  c  o m*/
    GL11.glVertex2i(x, y);
    GL11.glTexCoord2f(uf[0], vf[1]);
    GL11.glVertex2i(x, y + height);
    GL11.glTexCoord2f(uf[1], vf[1]);
    GL11.glVertex2i(x + width, y + height);
    GL11.glTexCoord2f(uf[1], vf[0]);
    GL11.glVertex2i(x + width, y);
    GL11.glEnd();
}

---

From source file:edu.csun.ecs.cs.multitouchj.ui.control.FramedControl.java

License:Apache License

public void render() {
    // render with no texture
    Texture texture = getTexture();/*from   www . j  a va2s  . c o m*/
    setTexture((Texture) null);

    GL11.glPushMatrix();
    GL11.glLoadIdentity();
    super.render();
    GL11.glPopMatrix();

    setTexture(texture);

    // rendering texture
    if ((!isVisible()) || (texture == null)) {
        return;
    }

    Size controlSize = getSize();
    Size imageSize = texture.getImage().getSize();
    float margin = getMargin();
    if ((margin >= controlSize.getWidth()) || (margin >= controlSize.getHeight())) {
        margin = 0.0f;
    }

    Color color = getColor();
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glColor4f(((float) color.getRed() / 255.0f), ((float) color.getGreen() / 255.0f),
            ((float) color.getBlue() / 255.0f), getOpacity());

    Point position = getOpenGlPosition();
    float halfWidth = (controlSize.getWidth() / 2.0f);
    float halfHeight = (controlSize.getHeight() / 2.0f);
    GL11.glTranslatef(position.getX(), position.getY(), 0.0f);

    float rotation = OpenGlUtility.getOpenGlRotation(getRotation());
    GL11.glRotatef(rotation, 0.0f, 0.0f, 1.0f);

    // render texture
    GL11.glEnable(EXTTextureRectangle.GL_TEXTURE_RECTANGLE_EXT);
    GL11.glBindTexture(EXTTextureRectangle.GL_TEXTURE_RECTANGLE_EXT, texture.getId().intValue());

    GL11.glBegin(GL11.GL_QUADS);
    GL11.glTexCoord2f(0.0f, 0.0f);
    GL11.glVertex3f(((-1 * halfWidth) + margin), ((-1 * halfHeight) + margin), 0.0f);

    GL11.glTexCoord2f(imageSize.getWidth(), 0.0f);
    GL11.glVertex3f((halfWidth - margin), ((-1 * halfHeight) + margin), 0.0f);

    GL11.glTexCoord2f(imageSize.getWidth(), imageSize.getHeight());
    GL11.glVertex3f((halfWidth - margin), (halfHeight - margin), 0.0f);

    GL11.glTexCoord2f(0.0f, imageSize.getHeight());
    GL11.glVertex3f(((-1 * halfWidth) + margin), (halfHeight - margin), 0.0f);
    GL11.glEnd();
}

---

From source file:edu.csun.ecs.cs.multitouchj.ui.control.TexturedControl.java

License:Apache License

public void render() {
    if (!isVisible()) {
        return;/*from  w ww.  j a  v a2  s.c om*/
    }

    Size controlSize = getSize();
    Size imageSize = null;
    if (texture != null) {
        imageSize = texture.getImage().getSize();
    }

    Color color = getColor();
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glColor4f(((float) color.getRed() / 255.0f), ((float) color.getGreen() / 255.0f),
            ((float) color.getBlue() / 255.0f), getOpacity());

    Point position = getOpenGlPosition();
    float halfWidth = (controlSize.getWidth() / 2.0f);
    float halfHeight = (controlSize.getHeight() / 2.0f);
    GL11.glTranslatef(position.getX(), position.getY(), 0.0f);

    float rotation = OpenGlUtility.getOpenGlRotation(getRotation());
    GL11.glRotatef(rotation, 0.0f, 0.0f, 1.0f);

    if (texture != null) {
        GL11.glEnable(EXTTextureRectangle.GL_TEXTURE_RECTANGLE_EXT);
        GL11.glBindTexture(EXTTextureRectangle.GL_TEXTURE_RECTANGLE_EXT, texture.getId().intValue());
    } else {
        GL11.glDisable(EXTTextureRectangle.GL_TEXTURE_RECTANGLE_EXT);
    }

    // bl -> br -> tr -> tl
    GL11.glBegin(GL11.GL_QUADS);
    if (texture != null) {
        GL11.glTexCoord2f(0.0f, 0.0f);
    }
    GL11.glVertex3f((-1 * halfWidth), (-1 * halfHeight), 0.0f);

    if (texture != null) {
        GL11.glTexCoord2f(imageSize.getWidth(), 0.0f);
    }
    GL11.glVertex3f(halfWidth, (-1 * halfHeight), 0.0f);

    if (texture != null) {
        GL11.glTexCoord2f(imageSize.getWidth(), imageSize.getHeight());
    }
    GL11.glVertex3f(halfWidth, halfHeight, 0.0f);

    if (texture != null) {
        GL11.glTexCoord2f(0.0f, imageSize.getHeight());
    }
    GL11.glVertex3f((-1 * halfWidth), halfHeight, 0.0f);
    GL11.glEnd();
}

---

From source file:effects.Projectile.java

License:Open Source License

public void draw() {
    GL11.glDisable(GL11.GL_LIGHTING);//from w ww  . j  a  v a  2  s  .  co  m
    material.bind();
    GL11.glColor3f(1.0f, 1.0f, 1.0f);
    GL11.glBegin(GL11.GL_LINES);
    GL11.glVertex3f(pos.x, pos.y, pos.z);
    GL11.glVertex3f(pos.x + vel.x / 10, pos.y + vel.y / 10, pos.z + vel.z / 10);
    GL11.glEnd();
    GL11.glEnable(GL11.GL_LIGHTING);
}

---

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