Example usage for org.lwjgl.opengl GL20 glUseProgram

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL20 glUseProgram.

Prototype

public static void glUseProgram(@NativeType("GLuint") int program)

Source Link

Document

Installs a program object as part of current rendering state.

Usage

From source file:com.xrbpowered.gl.examples.GLGlass.java

License:Open Source License

@Override
protected void setupResources() {
    super.setupResources();
    glassShader = new GlassShader();

    diffuse = new Texture("checker.png");
    alpha1 = BufferTexture.createPlainColor(4, 4, new Color(0x22777777, true));
    alpha2 = BufferTexture.createPlainColor(4, 4, new Color(0x00ffffff, true));
    normal = new Texture("glass_n.png");
    blurMask = new Texture("glass_blur.png");
    plane = FastMeshBuilder.plane(4f, 1, 1, StandardShader.standardVertexInfo, null);

    Random random = new Random();
    objectActors = new StaticMeshActor[NUM_OBJECTS];
    for (int i = 0; i < NUM_OBJECTS; i++) {
        objectActors[i] = StaticMeshActor.make(scene, plane, StandardShader.getInstance(), diffuse,
                noSpecularTexture, plainNormalTexture);
        objectActors[i].position.x = random.nextFloat() * OBJECT_RANGE * 2f - OBJECT_RANGE;
        objectActors[i].position.y = random.nextFloat() * OBJECT_RANGE * 2f - OBJECT_RANGE;
        objectActors[i].position.z = random.nextFloat() * OBJECT_RANGE * 2f - OBJECT_RANGE;
        objectActors[i].rotation.x = (float) Math.PI / 2f;
        objectActors[i].updateTransform();
    }/*from w  ww  .j  a  va2s . com*/
    planeActors1 = new StaticMeshActor[NUM_PLANES];
    planeActors2 = new StaticMeshActor[NUM_PLANES];
    for (int i = 0; i < NUM_PLANES; i++) {
        planeActors1[i] = StaticMeshActor.make(scene, plane, StandardShader.getInstance(), alpha1,
                plainSpecularTexture, normal);
        planeActors1[i].setShader(glassShader);
        planeActors2[i] = StaticMeshActor.make(scene, plane, StandardShader.getInstance(), alpha2,
                noSpecularTexture, normal);
        planeActors2[i].setShader(glassShader);
        planeActors1[i].position.x = random.nextFloat() * OBJECT_RANGE * 2f - OBJECT_RANGE;
        planeActors1[i].position.y = random.nextFloat() * OBJECT_RANGE * 2f - OBJECT_RANGE;
        planeActors1[i].position.z = random.nextFloat() * OBJECT_RANGE * 2f - OBJECT_RANGE;
        planeActors1[i].rotation.x = (float) Math.PI / 2f;
        planeActors2[i].position = planeActors1[i].position;
        planeActors2[i].rotation = planeActors1[i].rotation;
        planeActors1[i].updateTransform();
        planeActors2[i].updateTransform();
    }

    interBuffers = new OffscreenBuffers(getTargetWidth(), getTargetHeight(), false);
    blurBuffers = new OffscreenBuffers(getTargetWidth() / 6, getTargetHeight() / 6, false);
    postProc = new PostProcessShader("post_blur_f.glsl") {
        @Override
        protected void storeUniformLocations() {
            super.storeUniformLocations();
            GL20.glUseProgram(pId);
            GL20.glUniform1i(GL20.glGetUniformLocation(pId, "numSamples"), 5);
            GL20.glUniform1f(GL20.glGetUniformLocation(pId, "range"), 15f);
            GL20.glUseProgram(0);
        }
    };

    lightActor.rotation = new Vector3f((float) Math.PI, 0, 0);
    lightActor.updateTransform();
}

From source file:com.xrbpowered.gl.examples.GLPerlin.java

License:Open Source License

@Override
protected void setupResources() {
    super.setupResources();
    shader = new PostProcessShader("post_noise_f.glsl") {
        private int pivotLocation;
        private int scaleLocation;
        private int seedLocation;

        @Override/*from   ww w . j a  v a2s  .  co  m*/
        protected void storeUniformLocations() {
            super.storeUniformLocations();
            pivotLocation = GL20.glGetUniformLocation(pId, "pivot");
            scaleLocation = GL20.glGetUniformLocation(pId, "scale");
            seedLocation = GL20.glGetUniformLocation(pId, "seed");
            GL20.glUseProgram(pId);
            GL20.glUniform1i(GL20.glGetUniformLocation(pId, "palette"), 0);
            GL20.glUseProgram(0);
        }

        @Override
        public void updateUniforms() {
            super.updateUniforms();
            GL20.glUniform2f(pivotLocation, pivotx, pivoty);
            GL20.glUniform2f(scaleLocation, buffer.getWidth() / 2, buffer.getHeight() / 2);
            GL20.glUniform1i(seedLocation, seed);
        }
    };
    resetBuffer();
}

From source file:com.xrbpowered.gl.res.shaders.PostProcessShader.java

License:Open Source License

@Override
protected void storeUniformLocations() {
    timeLocation = GL20.glGetUniformLocation(pId, "time");
    GL20.glUseProgram(pId);
    GL20.glUniform1i(GL20.glGetUniformLocation(pId, "colorBuf"), 0);
    GL20.glUseProgram(0);//w  w  w  . j a  va  2 s .  c om
}

From source file:com.xrbpowered.gl.res.shaders.Shader.java

License:Open Source License

public void use() {
    GL20.glUseProgram(pId);
    updateUniforms();
}

From source file:com.xrbpowered.gl.res.shaders.Shader.java

License:Open Source License

public void unuse() {
    GL20.glUseProgram(0);
}

From source file:com.xrbpowered.gl.res.shaders.Shader.java

License:Open Source License

public void destroy() {
    GL20.glUseProgram(0);
    GL20.glDeleteProgram(pId);
}

From source file:com.xrbpowered.gl.res.shaders.Shader.java

License:Open Source License

protected void initSamplers(String[] names) {
    GL20.glUseProgram(pId);
    for (int i = 0; i < names.length; i++) {
        GL20.glUniform1i(GL20.glGetUniformLocation(pId, names[i]), i);
    }/* w  w  w . j  a  va 2s  . co m*/
    GL20.glUseProgram(0);
}

From source file:com.xrbpowered.gl.res.shaders.StandardShader.java

License:Open Source License

private void setPointLights(int n, Vector3f[] positions, Vector4f[] colors, Vector3f[] att) {
    GL20.glUseProgram(pId);
    GL20.glUniform1i(GL20.glGetUniformLocation(pId, "numPointLights"), n);
    for (int i = 0; i < n; i++) {
        String s = String.format("pointLights[%d].", i);
        uniform(GL20.glGetUniformLocation(pId, s + "position"), positions[i]);
        uniform(GL20.glGetUniformLocation(pId, s + "att"), att[i]);
        uniform(GL20.glGetUniformLocation(pId, s + "color"), colors[i]);
    }/* www .j  a v  a2 s  . c o m*/
    GL20.glUseProgram(0);
}

From source file:com.xrbpowered.gl.res.shaders.StandardShader.java

License:Open Source License

private void setFog(float near, float far, Vector4f color) {
    GL20.glUseProgram(pId);
    GL20.glUniform1f(GL20.glGetUniformLocation(pId, "fogNear"), near);
    GL20.glUniform1f(GL20.glGetUniformLocation(pId, "fogFar"), far);
    uniform(GL20.glGetUniformLocation(pId, "fogColor"), color);
    GL20.glUseProgram(0);// w ww.  ja  v a2  s .c o m
}

From source file:com.xrbpowered.gl.ui.UIShader.java

License:Open Source License

@Override
protected void storeUniformLocations() {
    alphaLocation = GL20.glGetUniformLocation(pId, "alpha");
    anchorLocation = GL20.glGetUniformLocation(pId, "anchor");
    screenSizeLocation = GL20.glGetUniformLocation(pId, "screenSize");
    GL20.glUseProgram(pId);
    GL20.glUniform1i(GL20.glGetUniformLocation(pId, "tex"), 0);
    GL20.glUniform2f(screenSizeLocation, Display.getWidth(), Display.getHeight());
    GL20.glUseProgram(0);//from  ww w  .ja  va2s .  c  o  m
}