Example usage for org.lwjgl.opengl GL11 glDrawArrays

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

  1. HOME
  2. Java
  3. org.lwjgl.opengl
  4. org.lwjgl.opengl.*
  5. GL11
  6. glDrawArrays

Introduction

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

Prototype

public static void glDrawArrays(@NativeType("GLenum") int mode, @NativeType("GLint") int first,
        @NativeType("GLsizei") int count)

Source Link

Document

Constructs a sequence of geometric primitives by successively transferring elements for count vertices.

Usage

From source file:eu.over9000.veya.rendering.Shadow.java

License:Open Source License

public void renderQuad() {
    if (quadVAO == 0) {
        final float[] quadVertices = {
                // Positions        // Texture Coords
                -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 1.0f,
                1.0f, -1.0f, 0.0f, 1.0f, 0.0f, };
        // Setup plane VAO

        final FloatBuffer fb = BufferUtils.createFloatBuffer(quadVertices.length);

        fb.put(quadVertices);// w  w w.j av  a  2  s  .  c  o m
        fb.flip();

        quadVAO = GL30.glGenVertexArrays();
        quadVBO = GL15.glGenBuffers();
        GL30.glBindVertexArray(quadVAO);
        GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, quadVBO);
        GL15.glBufferData(GL15.GL_ARRAY_BUFFER, fb, GL15.GL_STATIC_DRAW);
        GL20.glEnableVertexAttribArray(0);
        GL20.glVertexAttribPointer(0, 3, GL11.GL_FLOAT, false, 5 * Float.BYTES, 0);
        GL20.glEnableVertexAttribArray(1);
        GL20.glVertexAttribPointer(1, 2, GL11.GL_FLOAT, false, 5 * Float.BYTES, 3 * Float.BYTES);
    }
    GL30.glBindVertexArray(quadVAO);
    GL11.glDrawArrays(GL11.GL_TRIANGLE_STRIP, 0, 4);
    GL30.glBindVertexArray(0);
}

From source file:game.level.map.TileMap.java

License:Open Source License

public void Render() {
    GL11.glPushMatrix();/*w  w w  .  ja va  2s.com*/
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBOVertexHandle);
    GL11.glVertexPointer(3, GL11.GL_FLOAT, 0, 0L);

    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBOColorHandle);
    GL11.glColorPointer(3, GL11.GL_FLOAT, 0, 0L);

    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, VBONormalHandle);
    GL11.glNormalPointer(GL11.GL_FLOAT, 0, 0L);
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
    if (DebugMode) {
        GL11.glDrawArrays(GL11.GL_LINE_LOOP, 0, Quads * 16);
    } else {
        GL11.glDrawArrays(GL11.GL_QUADS, 0, Quads * 16);
    }

    for (int y = 0; y < tiles.length; y++) {
        for (int x = 0; x < tiles[0].length; x++) {
            if (tiles[y][x].IsFloor) {
                try {
                    tiles[y][x].Render(x, y);
                } catch (Exception e) {

                }

            }
        }
    }
    GL11.glPopMatrix();
    // }
}

From source file:game.skybox.lwjgl.SkyboxRenderer.java

public void render() {
    GL30.glBindVertexArray(cube.getVaoID());
    GL20.glEnableVertexAttribArray(0);//from ww  w .  j a v a2  s  .c o  m
    GL13.glActiveTexture(GL13.GL_TEXTURE0);
    GL11.glBindTexture(GL13.GL_TEXTURE_CUBE_MAP, texture);
    GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, cube.getVertexCount());
    GL20.glDisableVertexAttribArray(0);
    GL30.glBindVertexArray(0);
}

From source file:go.graphics.swing.opengl.LWJGLDrawContext.java

License:Open Source License

@Override
public void fillQuad(float x1, float y1, float x2, float y2) {
    ByteBuffer quadPoints = ByteBuffer.allocateDirect(4 * 2 * 4);
    quadPoints.order(ByteOrder.nativeOrder());
    FloatBuffer floatBuff = quadPoints.asFloatBuffer();
    floatBuff.put(x1);/*from   w w w  .ja va 2 s .  c o  m*/
    floatBuff.put(y1);

    floatBuff.put(x1);
    floatBuff.put(y2);

    floatBuff.put(x2);
    floatBuff.put(y2);

    floatBuff.put(x2);
    floatBuff.put(y1);

    floatBuff.position(0);

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
    GL11.glDisableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
    GL11.glVertexPointer(2, GL11.GL_FLOAT, 0, floatBuff);
    GL11.glDrawArrays(GL11.GL_QUADS, 0, 4);
    GL11.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
}

From source file:go.graphics.swing.opengl.LWJGLDrawContext.java

License:Open Source License

@Override
public void drawLine(float[] points, boolean loop) {
    if (points.length % 3 != 0) {
        throw new IllegalArgumentException("Point array length needs to be multiple of 3.");
    }//from   w  w w  . j a va  2 s.  c o  m
    ByteBuffer floatBuff = generateTemporaryFloatBuffer(points);

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
    GL11.glDisableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
    GL11.glVertexPointer(3, GL11.GL_FLOAT, 0, floatBuff);
    GL11.glDrawArrays(loop ? GL11.GL_LINE_LOOP : GL11.GL_LINE_STRIP, 0, points.length / 3);
    GL11.glEnableClientState(GL11.GL_TEXTURE_COORD_ARRAY);
}

From source file:go.graphics.swing.opengl.LWJGLDrawContext.java

License:Open Source License

private void drawQuadWithTexture(TextureHandle texture, ByteBuffer buffer, int len)
        throws IllegalBufferException {
    bindTexture(texture);/*from w  w  w.  j av a 2s .com*/
    GL11.glVertexPointer(3, GL11.GL_FLOAT, 5 * 4, buffer);
    buffer.position(3 * 4);
    GL11.glTexCoordPointer(2, GL11.GL_FLOAT, 5 * 4, buffer);
    GL11.glDrawArrays(GL11.GL_QUADS, 0, len);
}

From source file:go.graphics.swing.opengl.LWJGLDrawContext.java

License:Open Source License

private void drawTrianglesWithTexture(TextureHandle texture, ByteBuffer buffer, int triangles)
        throws IllegalBufferException {
    bindTexture(texture);// ww  w  .j a v  a  2s .  com

    GL11.glVertexPointer(3, GL11.GL_FLOAT, 5 * 4, buffer);
    buffer.position(3 * 4);
    GL11.glTexCoordPointer(2, GL11.GL_FLOAT, 5 * 4, buffer);
    GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, triangles * 3);
}

From source file:go.graphics.swing.opengl.LWJGLDrawContext.java

License:Open Source License

@Override
public void drawTrianglesWithTextureColored(TextureHandle texture, ByteBuffer buffer, int triangles)
        throws IllegalBufferException {
    bindTexture(texture);//from w ww  .j  av a 2 s.c o m

    GL11.glVertexPointer(3, GL11.GL_FLOAT, 6 * 4, buffer);
    buffer.position(3 * 4);
    GL11.glTexCoordPointer(2, GL11.GL_FLOAT, 6 * 4, buffer);
    buffer.position(5 * 4);
    GL11.glColorPointer(4, GL11.GL_UNSIGNED_BYTE, 6 * 4, buffer);

    GL11.glEnableClientState(GL11.GL_COLOR_ARRAY);
    GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, triangles * 3);
    GL11.glDisableClientState(GL11.GL_COLOR_ARRAY);
}

From source file:go.graphics.swing.opengl.LWJGLDrawContext.java

License:Open Source License

@Override
public void drawQuadWithTexture(TextureHandle texture, GeometryHandle geometry) throws IllegalBufferException {
    if (geometry == null) {
        throw new NullPointerException("Cannot draw a null geometry");
    }/*  w  ww. ja v a 2  s.  c om*/
    if (canUseVBOs) {
        bindTexture(texture);

        bindArrayBuffer(geometry);
        GL11.glVertexPointer(3, GL11.GL_FLOAT, 5 * 4, 0);
        GL11.glTexCoordPointer(2, GL11.GL_FLOAT, 5 * 4, 3 * 4);

        GL11.glDrawArrays(GL11.GL_QUADS, 0, 4);

        bindArrayBuffer(null);
    } else {
        drawQuadWithTexture(texture, getGeometryBuffer(geometry), 4);
    }
}

From source file:go.graphics.swing.opengl.LWJGLDrawContext.java

License:Open Source License

@Override
public void drawTrianglesWithTexture(TextureHandle texture, GeometryHandle geometry, int triangleCount)
        throws IllegalBufferException {
    if (canUseVBOs) {
        bindTexture(texture);/* w  w w.  ja v  a  2s. c o m*/

        bindArrayBuffer(geometry);
        GL11.glVertexPointer(3, GL11.GL_FLOAT, 5 * 4, 0);
        GL11.glTexCoordPointer(2, GL11.GL_FLOAT, 5 * 4, 3 * 4);

        GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, triangleCount * 3);

        bindArrayBuffer(null);
    } else {
        ByteBuffer buffer = getGeometryBuffer(geometry);
        buffer.rewind();
        drawTrianglesWithTexture(texture, buffer, buffer.remaining() / 5 / 4);
    }
}