Example usage for org.lwjgl.opengl GL13 glActiveTexture

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL13 glActiveTexture.

Prototype

public static void glActiveTexture(@NativeType("GLenum") int texture) 

Source Link

Document

Selects which texture unit subsequent texture state calls will affect.

Usage

From source file:org.terasology.rendering.dag.nodes.BloomPassesNode.java

License:Apache License

private void generateHighPass() {
    highPass.enable();/*from   w w  w  .ja va 2s  .  c  om*/
    highPass.setFloat("highPassThreshold", bloomHighPassThreshold, true);

    int texId = 0;
    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    READ_ONLY_GBUFFER.bindTexture();
    highPass.setInt("tex", texId);

    // TODO: Investigate why this is here
    //        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    //        buffers.READ_ONLY_GBUFFER.bindDepthTexture();
    //        program.setInt("texDepth", texId++);

    sceneHighPass.bind();

    setViewportToSizeOf(sceneHighPass);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // TODO: verify this is necessary

    renderFullscreenQuad();

    bindDisplay(); // TODO: verify this is necessary
    setViewportToSizeOf(READ_ONLY_GBUFFER); // TODO: verify this is necessary
}

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From source file:org.terasology.rendering.dag.nodes.DirectionalLightsNode.java

License:Apache License

/**
 * Part of the deferred lighting technique, this method applies lighting through screen-space
 * calculations to the previously flat-lit world rendering stored in the primary FBO.   // TODO: rename sceneOpaque* FBOs to primaryA/B
 * <p>//from   w  ww  .ja va2  s  .c om
 * See http://en.wikipedia.org/wiki/Deferred_shading as a starting point.
 */
private void applyLightBufferPass() {
    int texId = 0;

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    READ_ONLY_GBUFFER.bindTexture();
    lightBufferPass.setInt("texSceneOpaque", texId++, true);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    READ_ONLY_GBUFFER.bindDepthTexture();
    lightBufferPass.setInt("texSceneOpaqueDepth", texId++, true);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    READ_ONLY_GBUFFER.bindNormalsTexture();
    lightBufferPass.setInt("texSceneOpaqueNormals", texId++, true);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    READ_ONLY_GBUFFER.bindLightBufferTexture();
    lightBufferPass.setInt("texSceneOpaqueLightBuffer", texId, true);

    sceneReflectiveRefractive = displayResolutionDependentFBOs.get(REFRACTIVE_REFLECTIVE);

    WRITE_ONLY_GBUFFER.bind();
    WRITE_ONLY_GBUFFER.setRenderBufferMask(true, true, true);

    setViewportToSizeOf(WRITE_ONLY_GBUFFER);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // TODO: verify this is necessary

    renderFullscreenQuad();

    bindDisplay(); // TODO: verify this is necessary
    setViewportToSizeOf(READ_ONLY_GBUFFER); // TODO: verify this is necessary

    displayResolutionDependentFBOs.swapReadWriteBuffers();
    READ_ONLY_GBUFFER.attachDepthBufferTo(sceneReflectiveRefractive);
}

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

License:Apache License

private void applyLightBufferPass(String target) {
    Material program = Assets.getMaterial("engine:prog.lightBufferPass");
    program.enable();//from  w w  w  .ja  va 2s .  c o  m

    DefaultRenderingProcess.FBO targetFbo = getFBO(target);

    int texId = 0;
    if (targetFbo != null) {
        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindTexture();
        program.setInt("texSceneOpaque", texId++);

        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindDepthTexture();
        program.setInt("texSceneOpaqueDepth", texId++);

        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindNormalsTexture();
        program.setInt("texSceneOpaqueNormals", texId++);

        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindLightBufferTexture();
        program.setInt("texSceneOpaqueLightBuffer", texId++, true);
    }

    bindFbo(target + "PingPong");
    setRenderBufferMask(true, true, true);

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    renderFullscreenQuad();

    unbindFbo(target + "PingPong");

    flipPingPongFbo(target);

    if (target.equals("sceneOpaque")) {
        attachDepthBufferToFbo("sceneOpaque", "sceneReflectiveRefractive");
    }
}

---

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

License:Apache License

private void generateHighPass() {
    Material program = Assets.getMaterial("engine:prog.highp");
    program.setFloat("highPassThreshold", bloomHighPassThreshold, true);
    program.enable();//  w w  w. j  ava2s.co  m

    FBO highPass = getFBO("sceneHighPass");

    if (highPass == null) {
        return;
    }

    highPass.bind();

    FBO sceneOpaque = getFBO("sceneOpaque");

    int texId = 0;
    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    sceneOpaque.bindTexture();
    program.setInt("tex", texId++);

    //        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    //        sceneOpaque.bindDepthTexture();
    //        program.setInt("texDepth", texId++);

    glViewport(0, 0, highPass.width, highPass.height);

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    renderFullscreenQuad();

    highPass.unbind();

    glViewport(0, 0, rtFullWidth, rtFullHeight);
}

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

License:Apache License

@Override
public void enable() {
    if (shaderManager.getActiveMaterial() != this || activeFeaturesChanged) {
        GL13.glActiveTexture(GL13.GL_TEXTURE0);
        GL20.glUseProgram(getActiveShaderProgramId());

        // Make sure the shader manager knows that this program is currently active
        shaderManager.setActiveMaterial(this);
        activeFeaturesChanged = false;//from  ww  w. j  a va2  s.  co  m

        // Set the shader parameters if available
        if (shaderParameters != null) {
            shaderParameters.applyParameters(this);
        }
    }
}

---

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

License:Apache License

public void applyLightBufferPass(String target) {
    Material program = Assets.getMaterial("engine:prog.lightBufferPass");
    program.enable();/*ww w  .  j a v  a  2  s  .co m*/

    FBO targetFbo = getFBO(target);

    int texId = 0;
    if (targetFbo != null) {
        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindTexture();
        program.setInt("texSceneOpaque", texId++);

        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindDepthTexture();
        program.setInt("texSceneOpaqueDepth", texId++);

        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindNormalsTexture();
        program.setInt("texSceneOpaqueNormals", texId++);

        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
        targetFbo.bindLightBufferTexture();
        program.setInt("texSceneOpaqueLightBuffer", texId++, true);
    }

    FBO targetPingPong = getFBO(target + "PingPong");
    targetPingPong.bind();
    graphicState.setRenderBufferMask(targetPingPong, true, true, true);

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    renderFullscreenQuad();

    unbindFbo(target + "PingPong");

    flipPingPongFbo(target);

    if (target.equals("sceneOpaque")) {
        attachDepthBufferToFbo("sceneOpaque", "sceneReflectiveRefractive");
    }
}

---

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

License:Apache License

private void generateHighPass() {
    Material program = Assets.getMaterial("engine:prog.highp");
    program.setFloat("highPassThreshold", bloomHighPassThreshold, true);
    program.enable();// w  ww  .  ja v  a 2s . co m

    FBO highPass = getFBO("sceneHighPass");

    if (highPass == null) {
        return;
    }

    highPass.bind();

    FBO sceneOpaque = getFBO("sceneOpaque");

    int texId = 0;
    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    sceneOpaque.bindTexture();
    program.setInt("tex", texId++);

    //        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    //        sceneOpaque.bindDepthTexture();
    //        program.setInt("texDepth", texId++);

    setViewportTo(highPass.dimensions());
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    renderFullscreenQuad();

    highPass.unbind();
    setViewportToFullSize();
}

---

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

License:Apache License

/**
 * Part of the deferred lighting technique, this method applies lighting through screen-space
 * calculations to the previously flat-lit world rendering stored in the primary FBO.   // TODO: rename sceneOpaque* FBOs to primaryA/B
 *
 * See http://en.wikipedia.org/wiki/Deferred_shading as a starting point.
 *//*from ww w  .j a  v  a2  s  . c om*/
public void applyLightBufferPass() {

    int texId = 0;

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindTexture();
    materials.lightBufferPass.setInt("texSceneOpaque", texId++);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindDepthTexture();
    materials.lightBufferPass.setInt("texSceneOpaqueDepth", texId++);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindNormalsTexture();
    materials.lightBufferPass.setInt("texSceneOpaqueNormals", texId++);

    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindLightBufferTexture();
    materials.lightBufferPass.setInt("texSceneOpaqueLightBuffer", texId, true);

    buffers.sceneOpaquePingPong.bind();
    graphicState.setRenderBufferMask(buffers.sceneOpaquePingPong, true, true, true);

    setViewportTo(buffers.sceneOpaquePingPong.dimensions());
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // TODO: verify this is necessary

    renderFullscreenQuad();

    graphicState.bindDisplay(); // TODO: verify this is necessary
    setViewportToWholeDisplay(); // TODO: verify this is necessary

    renderingProcess.swapSceneOpaqueFBOs();
    buffers.sceneOpaque.attachDepthBufferTo(buffers.sceneReflectiveRefractive);
}

---

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

License:Apache License

private void generateHighPass() {
    materials.highPass.enable();//w  ww .  ja v  a  2 s .c om
    materials.highPass.setFloat("highPassThreshold", bloomHighPassThreshold, true);

    int texId = 0;
    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    buffers.sceneOpaque.bindTexture();
    materials.highPass.setInt("tex", texId);

    //        GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    //        buffers.sceneOpaque.bindDepthTexture();
    //        program.setInt("texDepth", texId++);

    buffers.sceneHighPass.bind();

    setViewportTo(buffers.sceneHighPass.dimensions());
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    renderFullscreenQuad();

    graphicState.bindDisplay();
    setViewportToWholeDisplay();
}

---

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

License:Apache License

private void applyOculusDistortion(FBO inputBuffer) {
    materials.ocDistortion.enable();//from  w w  w. j  a  v a 2  s  .  c  o m

    int texId = 0;
    GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
    inputBuffer.bindTexture();
    materials.ocDistortion.setInt("texInputBuffer", texId, true);

    if (renderingProcess.isNotTakingScreenshot()) {
        updateOcShaderParametersForVP(0, 0, fullScale.width() / 2, fullScale.height(),
                WorldRenderer.WorldRenderingStage.LEFT_EYE);
        renderFullscreenQuad(0, 0, Display.getWidth(), Display.getHeight());
        updateOcShaderParametersForVP(fullScale.width() / 2 + 1, 0, fullScale.width() / 2, fullScale.height(),
                WorldRenderer.WorldRenderingStage.RIGHT_EYE);
        renderFullscreenQuad(0, 0, Display.getWidth(), Display.getHeight());

    } else {
        // what follows -should- work also when there is no screenshot being taken, but somehow it doesn't, hence the block above
        updateOcShaderParametersForVP(0, 0, fullScale.width() / 2, fullScale.height(),
                WorldRenderer.WorldRenderingStage.LEFT_EYE);
        renderFullscreenQuad(0, 0, fullScale.width(), fullScale.height());
        updateOcShaderParametersForVP(fullScale.width() / 2 + 1, 0, fullScale.width() / 2, fullScale.height(),
                WorldRenderer.WorldRenderingStage.RIGHT_EYE);
        renderFullscreenQuad(0, 0, fullScale.width(), fullScale.height());
    }
}

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