Example usage for org.lwjgl.opengl GL11 glBindTexture

Introduction

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

Prototype

public static void glBindTexture(@NativeType("GLenum") int target, @NativeType("GLuint") int texture)

Source Link

Document

Binds the a texture to a texture target.

Usage

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

/**
 * Binds the color attachment to the currently active texture unit.
 * Once a texture is bound it can be sampled by shaders.
 *//*from  ww  w .  j a  va  2  s  . c o  m*/
public void bindTexture() {
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, colorBufferTextureId);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

/**
 * Binds the depth attachment to the currently active texture unit.
 * Once a texture is bound it can be sampled by shaders.
 *//*from  ww  w . ja  v a 2s.  co m*/
public void bindDepthTexture() {
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, depthStencilTextureId);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

/**
 * Binds the normals attachment to the currently active texture unit.
 * Once a texture is bound it can be sampled by shaders.
 *///from  www.  j  a  v  a2  s.c  om
public void bindNormalsTexture() {
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, normalsBufferTextureId);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

/**
 * Binds the light buffer attachment to the currently active texture unit.
 * Once a texture is bound it can be sampled by shaders.
 */// w  ww . j a  v  a 2 s  .co m
public void bindLightBufferTexture() {
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, lightBufferTextureId);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

/**
 * Unbinds the texture attached to the currently active texture unit.
 * Quirk: this also works if the texture to be unbound is -not- an attachment
 * of the calling instance's FrameBuffer.
 *///  w w  w.j  a  v a2 s  . c  o  m
public static void unbindTexture() {
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

/**
 * Creates an FBO, allocating the underlying FrameBuffer and the desired attachments on the GPU.
 *
 * Also checks the resulting FBO for completeness and logs errors and their error codes as necessary.
 * Callers must check the returned FBO's status (see getStatus()). Only FBO with a Status.COMPLETE should be used.
 *
 * In what follows, the GL constants between parenthesis represent the (internal format, data type, filtering type) of a buffer.
 *
 * An FBO of Type.DEFAULT will have a 32 bit color buffer attached to it. (GL_RGBA, GL11.GL_UNSIGNED_BYTE, GL_LINEAR)
 * An FBO of Type.HDR will have a 64 bit color buffer attached to it. (GL_RGBA, GL_HALF_FLOAT_ARB, GL_LINEAR)
 * An FBO of Type.NO_COLOR will have -no- color buffer attached to it.
 *
 * If the creation process is successful (Status.COMPLETE) GPU memory has been allocated for the FrameBuffer and
 * its attachments. However, the content of the attachments is undefined.
 *
 * @param urn An identification string. It is currently used only to log creation errors and is not stored in the FBO.
 * @param dimensions A Dimensions object wrapping width and height of the FBO.
 * @param type Can be Type.DEFAULT, Type.HDR or Type.NO_COLOR
 * @param useDepthBuffer If true the FBO will have a 24 bit depth buffer attached to it. (GL_DEPTH_COMPONENT24, GL_UNSIGNED_INT, GL_NEAREST)
 * @param useNormalBuffer If true the FBO will have a 32 bit normals buffer attached to it. (GL_RGBA, GL_UNSIGNED_BYTE, GL_LINEAR)
 * @param useLightBuffer If true the FBO will have 32/64 bit light buffer attached to it, depending if Type is DEFAULT/HDR.
 *                       (GL_RGBA/GL_RGBA16F_ARB, GL_UNSIGNED_BYTE/GL_HALF_FLOAT_ARB, GL_LINEAR)
 * @param useStencilBuffer If true the depth buffer will also have an 8 bit Stencil buffer associated with it.
 *                         (GL_DEPTH24_STENCIL8_EXT, GL_UNSIGNED_INT_24_8_EXT, GL_NEAREST)
 * @return The resuting FBO object wrapping a FrameBuffer and its attachments. Use getStatus() before use to verify completeness.
 *//*from w w w.  j ava 2 s  .  co  m*/
public static FBO create(ResourceUrn urn, Dimensions dimensions, Type type, boolean useDepthBuffer,
        boolean useNormalBuffer, boolean useLightBuffer, boolean useStencilBuffer) {
    FBO fbo = new FBO(dimensions.width, dimensions.height);

    // Create the FBO on the GPU
    fbo.fboId = glGenFramebuffersEXT();
    glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo.fboId);

    if (type != Type.NO_COLOR) {
        createColorBuffer(fbo, dimensions, type);
    }

    if (useNormalBuffer) {
        createNormalsBuffer(fbo, dimensions);
    }

    if (useLightBuffer) {
        createLightBuffer(fbo, dimensions, type);
    }

    if (useDepthBuffer) {
        createDepthBuffer(fbo, dimensions, useStencilBuffer);
    }

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);

    IntBuffer bufferIds = BufferUtils.createIntBuffer(3);
    if (type != Type.NO_COLOR) {
        bufferIds.put(GL_COLOR_ATTACHMENT0_EXT);
    }
    if (useNormalBuffer) {
        bufferIds.put(GL_COLOR_ATTACHMENT1_EXT);
    }
    if (useLightBuffer) {
        bufferIds.put(GL_COLOR_ATTACHMENT2_EXT);
    }
    bufferIds.flip();

    if (bufferIds.limit() == 0) {
        GL11.glReadBuffer(GL11.GL_NONE);
        GL20.glDrawBuffers(GL11.GL_NONE);
    } else {
        GL20.glDrawBuffers(bufferIds);
    }

    verifyCompleteness(urn, type, fbo);
    glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);

    return fbo;
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

private static void createColorBuffer(FBO fbo, Dimensions dimensions, Type type) {
    fbo.colorBufferTextureId = glGenTextures();
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, fbo.colorBufferTextureId);

    setTextureParameters(GL11.GL_LINEAR);

    if (type == Type.HDR) {
        allocateTexture(dimensions, GL11.GL_RGBA, GL11.GL_RGBA, ARBHalfFloatPixel.GL_HALF_FLOAT_ARB);
    } else {//from  www . j a  v  a 2  s .c  om
        allocateTexture(dimensions, GL11.GL_RGBA, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE);
    }

    glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL11.GL_TEXTURE_2D,
            fbo.colorBufferTextureId, 0);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

private static void createNormalsBuffer(FBO fbo, Dimensions dimensions) {
    fbo.normalsBufferTextureId = glGenTextures();
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, fbo.normalsBufferTextureId);

    setTextureParameters(GL11.GL_LINEAR);

    allocateTexture(dimensions, GL11.GL_RGBA, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE);

    glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL11.GL_TEXTURE_2D,
            fbo.normalsBufferTextureId, 0);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

private static void createLightBuffer(FBO fbo, Dimensions dimensions, Type type) {
    fbo.lightBufferTextureId = glGenTextures();
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, fbo.lightBufferTextureId);

    setTextureParameters(GL11.GL_LINEAR);

    if (type == Type.HDR) {
        allocateTexture(dimensions, ARBTextureFloat.GL_RGBA16F_ARB, GL11.GL_RGBA,
                ARBHalfFloatPixel.GL_HALF_FLOAT_ARB);
    } else {/*  w  ww  .j  a  v a2s  . c  o m*/
        allocateTexture(dimensions, GL11.GL_RGBA, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE);
    }

    glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT2_EXT, GL11.GL_TEXTURE_2D,
            fbo.lightBufferTextureId, 0);
}

From source file:org.terasology.rendering.opengl.FBO.java

License:Apache License

private static void createDepthBuffer(FBO fbo, Dimensions dimensions, boolean useStencilBuffer) {
    fbo.depthStencilTextureId = glGenTextures();
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, fbo.depthStencilTextureId);

    setTextureParameters(GL11.GL_NEAREST);

    if (!useStencilBuffer) {
        allocateTexture(dimensions, GL14.GL_DEPTH_COMPONENT24, GL11.GL_DEPTH_COMPONENT, GL11.GL_UNSIGNED_INT);
    } else {//w  ww  .  j a va2s. c o m
        allocateTexture(dimensions, EXTPackedDepthStencil.GL_DEPTH24_STENCIL8_EXT,
                EXTPackedDepthStencil.GL_DEPTH_STENCIL_EXT, EXTPackedDepthStencil.GL_UNSIGNED_INT_24_8_EXT);
    }

    fbo.depthStencilRboId = glGenRenderbuffersEXT();
    glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, fbo.depthStencilRboId);

    if (!useStencilBuffer) {
        glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL14.GL_DEPTH_COMPONENT24, fbo.dimensions.width,
                fbo.dimensions.height);
    } else {
        glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, EXTPackedDepthStencil.GL_DEPTH24_STENCIL8_EXT,
                fbo.dimensions.width, fbo.dimensions.height);
    }

    glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);

    glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT,
            fbo.depthStencilRboId);
    glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL11.GL_TEXTURE_2D,
            fbo.depthStencilTextureId, 0);

    if (useStencilBuffer) {
        glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL11.GL_TEXTURE_2D,
                fbo.depthStencilTextureId, 0);
    }
}