Example usage for org.lwjgl.opengl GL30 glBindFramebuffer

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL30 glBindFramebuffer.

Prototype

public static void glBindFramebuffer(@NativeType("GLenum") int target, @NativeType("GLuint") int framebuffer) 

Source Link

Document

Binds a framebuffer to a framebuffer target.

Usage

From source file:com.microsoft.Malmo.MissionHandlers.VideoProducerImplementation.java

License:Open Source License

@Override
public void getFrame(MissionInit missionInit, ByteBuffer buffer) {
    if (!this.videoParams.isWantDepth()) {
        getRGBFrame(buffer); // Just return the simple RGB, 3bpp image.
        return;//from  w w  w.ja va 2  s.co m
    }

    // Otherwise, do the work of extracting the depth map:
    final int width = this.videoParams.getWidth();
    final int height = this.videoParams.getHeight();

    GL30.glBindFramebuffer(GL30.GL_READ_FRAMEBUFFER,
            Minecraft.getMinecraft().getFramebuffer().framebufferObject);
    GL30.glBindFramebuffer(GL30.GL_DRAW_FRAMEBUFFER, this.fbo.framebufferObject);
    GL30.glBlitFramebuffer(0, 0, Minecraft.getMinecraft().getFramebuffer().framebufferWidth,
            Minecraft.getMinecraft().getFramebuffer().framebufferHeight, 0, 0, width, height,
            GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT, GL11.GL_NEAREST);

    this.fbo.bindFramebuffer(true);
    glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
    glReadPixels(0, 0, width, height, GL_DEPTH_COMPONENT, GL_FLOAT, this.depthBuffer);
    this.fbo.unbindFramebuffer();

    // Now convert the depth buffer into values from 0-255 and copy it over the alpha channel.
    // We either use the min and max values supplied in order to scale it, or we scale it according
    // to the dynamic content:
    float minval, maxval;

    // The scaling section is optional (since the depthmap is optional) - so if there is no depthScaling object,
    // go with the default of autoscale.
    if (this.videoParams.getDepthScaling() == null || this.videoParams.getDepthScaling().isAutoscale()) {
        minval = 1;
        maxval = 0;
        for (int i = 0; i < width * height; i++) {
            float f = this.depthBuffer.get(i);
            if (f < minval)
                minval = f;
            if (f > maxval)
                maxval = f;
        }
    } else {
        minval = this.videoParams.getDepthScaling().getMin().floatValue();
        maxval = this.videoParams.getDepthScaling().getMax().floatValue();
        if (minval > maxval) {
            // You can't trust users.
            float t = minval;
            minval = maxval;
            maxval = t;
        }
    }
    float range = maxval - minval;
    if (range < 0.000001)
        range = 0.000001f; // To avoid divide by zero errors in cases where there is no depth variance
    float scale = 255 / range;
    for (int i = 0; i < width * height; i++) {
        float f = this.depthBuffer.get(i);
        f = (f < minval ? minval : (f > maxval ? maxval : f));
        f -= minval;
        f *= scale;
        buffer.put(i * 4 + 3, (byte) f);
    }
    // Reset depth buffer ready for next read:
    this.depthBuffer.clear();
}

---

From source file:com.mtbs3d.minecrift.FBOParams.java

License:LGPL

public FBOParams(String fboName, int textureType, int internalFormat, int baseFormat, int bufferType,
        int fboWidth, int fboHeight) throws Exception {
    Minecraft mc = Minecraft.getMinecraft();
    _textureType = textureType;//from ww  w  .  ja  va  2s . c  o m

    if (fboSupport == FBO_SUPPORT.USE_EXT_UNKNOWN) {
        // The framebuffer, which regroups 0, 1, or more textures, and 0 or 1 depth buffer.
        try {
            _frameBufferId = GL30.glGenFramebuffers();
            fboSupport = FBO_SUPPORT.USE_GL30;
        } catch (IllegalStateException ex) {
            System.out.println(
                    "[Minecrift] FBO creation: GL30.glGenFramebuffers not supported. Attempting to use EXTFramebufferObject.glGenFramebuffersEXT");
            fboSupport = FBO_SUPPORT.USE_EXT;

            try {
                _frameBufferId = EXTFramebufferObject.glGenFramebuffersEXT();
            } catch (IllegalStateException ex1) {
                System.out.println(
                        "[Minecrift] FBO creation: EXTFramebufferObject.glGenFramebuffersEXT not supported, FBO creation failed.");
                throw ex1;
            }
        }
    } else if (fboSupport == FBO_SUPPORT.USE_GL30) {
        _frameBufferId = GL30.glGenFramebuffers();
    } else {
        _frameBufferId = EXTFramebufferObject.glGenFramebuffersEXT();
    }

    if (fboSupport == FBO_SUPPORT.USE_GL30) {
        _colorTextureId = GL11.glGenTextures();
        _depthRenderBufferId = GL30.glGenRenderbuffers();

        GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, _frameBufferId);
        checkGLError("FBO bind framebuffer");

        GL11.glBindTexture(textureType, _colorTextureId);
        checkGLError("FBO bind texture");

        GL11.glEnable(textureType);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
        GL11.glTexImage2D(textureType, 0, internalFormat, fboWidth, fboHeight, 0, baseFormat, bufferType,
                (java.nio.ByteBuffer) null);

        System.out.println("[Minecrift] FBO '" + fboName + "': w: " + fboWidth + ", h: " + fboHeight);

        GL30.glFramebufferTexture2D(GL30.GL_FRAMEBUFFER, GL30.GL_COLOR_ATTACHMENT0, textureType,
                _colorTextureId, 0);

        checkGLError("FBO bind texture framebuffer");

        GL30.glBindRenderbuffer(GL30.GL_RENDERBUFFER, _depthRenderBufferId); // bind the depth renderbuffer
        GL30.glRenderbufferStorage(GL30.GL_RENDERBUFFER, GL14.GL_DEPTH_COMPONENT24, fboWidth, fboHeight); // get the data space for it
        GL30.glFramebufferRenderbuffer(GL30.GL_FRAMEBUFFER, GL30.GL_DEPTH_ATTACHMENT, GL30.GL_RENDERBUFFER,
                _depthRenderBufferId);
        checkGLError("FBO bind depth framebuffer");
    } else {
        _colorTextureId = GL11.glGenTextures();
        _depthRenderBufferId = EXTFramebufferObject.glGenRenderbuffersEXT();

        EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, _frameBufferId);
        checkGLError("FBO bind framebuffer");

        GL11.glBindTexture(textureType, _colorTextureId);
        checkGLError("FBO bind texture");

        GL11.glEnable(textureType);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
        GL11.glTexImage2D(textureType, 0, internalFormat, fboWidth, fboHeight, 0, baseFormat, bufferType,
                (java.nio.ByteBuffer) null);
        System.out.println("[Minecrift] FBO '" + fboName + "': w: " + fboWidth + ", h: " + fboHeight);

        EXTFramebufferObject.glFramebufferTexture2DEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
                EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT, textureType, _colorTextureId, 0);

        checkGLError("FBO bind texture framebuffer");

        EXTFramebufferObject.glBindRenderbufferEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT,
                _depthRenderBufferId); // bind the depth renderbuffer
        EXTFramebufferObject.glRenderbufferStorageEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT,
                GL14.GL_DEPTH_COMPONENT24, fboWidth, fboHeight); // get the data space for it
        EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
                EXTFramebufferObject.GL_DEPTH_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT,
                _depthRenderBufferId);
        checkGLError("FBO bind depth framebuffer");
    }

    if (!checkFramebufferStatus()) {
        // OK, if we have an error here - then throw an exception
        System.out.println("[Minecrift] FAILED to create framebuffer!!");
        throw new Exception("Failed to create framebuffer");
    }
}

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From source file:com.mtbs3d.minecrift.FBOParams.java

License:LGPL

public void bindRenderTarget() {
    if (fboSupport == FBO_SUPPORT.USE_GL30)
        GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, _frameBufferId);
    else/*from  www . j ava  2  s  . co m*/
        EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, _frameBufferId);
}

---

From source file:com.mtbs3d.minecrift.render.FBOParams.java

License:LGPL

public FBOParams(String fboName, int textureType, int internalFormat, int baseFormat, int bufferType,
        int fboWidth, int fboHeight) throws Exception {
    Minecraft mc = Minecraft.getMinecraft();
    _textureType = textureType;/*from  w  w w  .  j  av  a  2  s.  c  o m*/

    if (fboSupport == FBO_SUPPORT.USE_EXT_UNKNOWN) {
        // The framebuffer, which regroups 0, 1, or more textures, and 0 or 1 depth buffer.
        try {
            _frameBufferId = GL30.glGenFramebuffers();
            fboSupport = FBO_SUPPORT.USE_GL30;
        } catch (IllegalStateException ex) {
            System.out.println(
                    "[Minecrift] FBO creation: GL30.glGenFramebuffers not supported. Attempting to use EXTFramebufferObject.glGenFramebuffersEXT");
            fboSupport = FBO_SUPPORT.USE_EXT;

            try {
                _frameBufferId = EXTFramebufferObject.glGenFramebuffersEXT();
            } catch (IllegalStateException ex1) {
                System.out.println(
                        "[Minecrift] FBO creation: EXTFramebufferObject.glGenFramebuffersEXT not supported, FBO creation failed.");
                throw ex1;
            }
        }
    } else if (fboSupport == FBO_SUPPORT.USE_GL30) {
        _frameBufferId = GL30.glGenFramebuffers();
    } else {
        _frameBufferId = EXTFramebufferObject.glGenFramebuffersEXT();
    }

    if (fboSupport == FBO_SUPPORT.USE_GL30) {
        _colorTextureId = GL11.glGenTextures();
        _depthRenderBufferId = GL30.glGenRenderbuffers();

        GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, _frameBufferId);
        mc.checkGLError("FBO bind framebuffer");

        GL11.glBindTexture(textureType, _colorTextureId);
        mc.checkGLError("FBO bind texture");

        GL11.glEnable(textureType);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
        GL11.glTexImage2D(textureType, 0, internalFormat, fboWidth, fboHeight, 0, baseFormat, bufferType,
                (java.nio.ByteBuffer) null);

        //System.out.println("[Minecrift] FBO '" + fboName + "': w: " + fboWidth + ", h: " + fboHeight);

        GL30.glFramebufferTexture2D(GL30.GL_FRAMEBUFFER, GL30.GL_COLOR_ATTACHMENT0, textureType,
                _colorTextureId, 0);

        mc.checkGLError("FBO bind texture framebuffer");

        GL30.glBindRenderbuffer(GL30.GL_RENDERBUFFER, _depthRenderBufferId); // bind the depth renderbuffer
        GL30.glRenderbufferStorage(GL30.GL_RENDERBUFFER, GL14.GL_DEPTH_COMPONENT24, fboWidth, fboHeight); // get the data space for it
        GL30.glFramebufferRenderbuffer(GL30.GL_FRAMEBUFFER, GL30.GL_DEPTH_ATTACHMENT, GL30.GL_RENDERBUFFER,
                _depthRenderBufferId);
        mc.checkGLError("FBO bind depth framebuffer");
    } else {
        _colorTextureId = GL11.glGenTextures();
        _depthRenderBufferId = EXTFramebufferObject.glGenRenderbuffersEXT();

        EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, _frameBufferId);
        mc.checkGLError("FBO bind framebuffer");

        GL11.glBindTexture(textureType, _colorTextureId);
        mc.checkGLError("FBO bind texture");

        GL11.glEnable(textureType);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
        GL11.glTexParameterf(textureType, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
        GL11.glTexImage2D(textureType, 0, internalFormat, fboWidth, fboHeight, 0, baseFormat, bufferType,
                (java.nio.ByteBuffer) null);
        //System.out.println("[Minecrift] FBO '" + fboName + "': w: " + fboWidth + ", h: " + fboHeight);

        EXTFramebufferObject.glFramebufferTexture2DEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
                EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT, textureType, _colorTextureId, 0);

        mc.checkGLError("FBO bind texture framebuffer");

        EXTFramebufferObject.glBindRenderbufferEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT,
                _depthRenderBufferId); // bind the depth renderbuffer
        EXTFramebufferObject.glRenderbufferStorageEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT,
                GL14.GL_DEPTH_COMPONENT24, fboWidth, fboHeight); // get the data space for it
        EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
                EXTFramebufferObject.GL_DEPTH_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT,
                _depthRenderBufferId);
        mc.checkGLError("FBO bind depth framebuffer");
    }

    if (!checkFramebufferStatus()) {
        // OK, if we have an error here - then throw an exception
        System.out.println("[Minecrift] FAILED to create framebuffer!!");
        throw new Exception("Failed to create framebuffer");
    }
}

---

From source file:com.mtbs3d.minecrift.VRRenderer.java

License:LGPL

private void unbindFBORenderTarget() {
    try {//from   w  w w . j  a va  2s .  c  om
        GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, 0);
    } catch (IllegalStateException ex) {
        EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, 0);
    }
}

---

From source file:com.opengrave.og.light.Depth2DFramebuffer.java

License:Open Source License

public Depth2DFramebuffer(int size) {
    framebufferSize = size;/*from  ww  w  . ja va 2s  .co  m*/
    framebuffer = GL30.glGenFramebuffers();
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, framebuffer);
    shadowMap = new Texture2DShadowMap(framebufferSize);

    shadowMap.bindToFrameBuffer();

    // GL11.glDrawBuffer(GL30.GL_COLOR_ATTACHMENT0);
    GL11.glDrawBuffer(GL11.GL_NONE);
    Util.checkErr();
    GL11.glReadBuffer(GL11.GL_NONE);
    int i = GL30.glCheckFramebufferStatus(GL30.GL_FRAMEBUFFER);
    if (i != GL30.GL_FRAMEBUFFER_COMPLETE) {
        throw new RuntimeException("Framebuffer creation failed with code: " + i);
    }
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, 0);

    // TESTING STUFF
    count = 2;
    FloatBuffer pos = BufferUtils.createFloatBuffer(3 * 3 * count);
    FloatBuffer tex = BufferUtils.createFloatBuffer(2 * 3 * count);
    pos.put(0.75f).put(0.75f).put(0f);
    pos.put(0.75f).put(0.25f).put(0f);
    pos.put(0.25f).put(0.75f).put(0f);
    pos.put(0.25f).put(0.25f).put(0f);

    pos.put(0.75f).put(0.25f).put(0f);
    pos.put(0.25f).put(0.75f).put(0f);
    pos.flip();
    tex.put(1f).put(1f);
    tex.put(1f).put(0f);
    tex.put(0f).put(1f);
    tex.put(0f).put(0f);
    tex.put(1f).put(0f);

    tex.put(0f).put(1f);
    tex.flip();
    vao_ID = GL30.glGenVertexArrays();
    GL30.glBindVertexArray(vao_ID);
    int vbo_pos_ID = GL15.glGenBuffers();
    int vbo_tex_ID = GL15.glGenBuffers();
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vbo_pos_ID);
    GL15.glBufferData(GL15.GL_ARRAY_BUFFER, pos, GL15.GL_STATIC_DRAW);
    GL20.glVertexAttribPointer(0, 3, GL11.GL_FLOAT, false, 0, 0);
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vbo_tex_ID);
    GL15.glBufferData(GL15.GL_ARRAY_BUFFER, tex, GL15.GL_STATIC_DRAW);
    GL20.glVertexAttribPointer(1, 2, GL11.GL_FLOAT, false, 0, 0);
}

---

From source file:com.opengrave.og.light.Depth2DFramebuffer.java

License:Open Source License

@Override
public void bindDraw() {
    Util.checkErr();//from   w  w  w . j  a  va2  s  .  c  o  m

    for (int i = GL13.GL_TEXTURE0; i < GL13.GL_TEXTURE31; i++) {
        GL13.glActiveTexture(i);
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
        GL11.glBindTexture(GL30.GL_TEXTURE_2D_ARRAY, 0);
        GL11.glBindTexture(GL13.GL_TEXTURE_CUBE_MAP, 0);
    }
    Util.checkErr();
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, framebuffer);
    Util.checkErr();
    GL11.glDisable(GL11.GL_BLEND);
    Util.checkErr();
    GL11.glEnable(GL11.GL_DEPTH_TEST);
    GL11.glDepthFunc(GL11.GL_LESS);
    GL11.glDepthMask(true);
    Util.checkErr();
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
    Util.checkErr();
    GL11.glViewport(0, 0, framebufferSize, framebufferSize);

}

---

From source file:com.opengrave.og.light.Depth2DFramebuffer.java

License:Open Source License

@Override
public void unbindDraw() {
    GL11.glFlush();
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, 0);
}

---

From source file:com.opengrave.og.light.DepthCubeFramebuffer.java

License:Open Source License

public DepthCubeFramebuffer(int size) {
    framebufferSize = size;/*from w w  w  . ja va 2 s.com*/
    framebuffer = GL30.glGenFramebuffers();
    // System.out.println("Creating Pointlight Framebuffer : " +
    // framebuffer);
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, framebuffer);
    shadowMap = new TextureCubeShadowMap(framebufferSize);

    // shadowMap.bindToFrameBuffer();
    shadowMap.bindToFrameBuffer(0);
    // GL11.glDrawBuffer(GL30.GL_COLOR_ATTACHMENT0);
    GL11.glDrawBuffer(GL11.GL_NONE);
    Util.checkErr();
    GL11.glReadBuffer(GL11.GL_NONE);
    int i = GL30.glCheckFramebufferStatus(GL30.GL_FRAMEBUFFER);
    if (i != GL30.GL_FRAMEBUFFER_COMPLETE) {
        throw new RuntimeException("Framebuffer creation failed with code: " + i);
    }
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, 0);
    Util.checkErr();
}

---

From source file:com.opengrave.og.light.DepthCubeFramebuffer.java

License:Open Source License

public void bindDraw(int direction) {
    Util.checkErr();//from   w  ww.j a va2s  .co m
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, framebuffer);
    shadowMap.bindToFrameBuffer(direction);
    Util.checkErr();

    Util.checkErr();
    GL11.glDisable(GL11.GL_BLEND);
    Util.checkErr();
    GL11.glEnable(GL11.GL_DEPTH_TEST);
    GL11.glDepthFunc(GL11.GL_LESS);
    GL11.glDepthMask(true);
    Util.checkErr();
    GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
    Util.checkErr();
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
    GL11.glViewport(0, 0, framebufferSize, framebufferSize);

}

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