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:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Binds OpenGL to use this shader program.
 */
public void bindShader() {
    GL20.glUseProgram(programID);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

@Override
public void close() {
    GL20.glUseProgram(0);
    GL20.glDetachShader(programID, vertShaderID);
    GL20.glDetachShader(programID, fragShaderID);
    GL20.glDeleteShader(vertShaderID);/* www .  j  a  v a 2  s.co m*/
    GL20.glDeleteShader(fragShaderID);
    GL20.glDeleteProgram(programID);
    Game.getCurrentInstance().removeFromTrashCleanup(this);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Gets the integer location of a uniform variable.
 * @param variableName The {@link java.lang.String} name of the Uniform variable.
 * @return Returns the integer location of a uniform variable.
 *///from   ww  w .  j a  v a 2s .c o  m
public int getUniformVariableLocation(String variableName) {
    if (uniformMap.containsKey(variableName)) {
        int ret = uniformMap.get(variableName);
        if (ret != -1)
            return ret;
    }

    GL20.glUseProgram(programID);
    int ret = GL20.glGetUniformLocation(programID, variableName);
    uniformMap.put(variableName, ret);
    return ret;
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Changes the shader's projection matrix to the one specified.
 * This will only work with the 3D shader!
 * @param value The {@link org.lwjgl.util.vector.Matrix4f} object containing the shader projection data.
 *///from   ww  w.jav  a  2s . co  m
public void setProjectionMatrix(Matrix4f value) {
    GL20.glUseProgram(programID);
    FloatBuffer pbuf = BufferUtils.createFloatBuffer(16);
    value.store(pbuf);
    pbuf.flip();
    GL20.glUniformMatrix4fv(getUniformVariableLocation("projectionMatrix"), false, pbuf);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Changes the shader's transformation matrix to the one specified.
 * @param value The {@link org.lwjgl.util.vector.Matrix4f} object containing the shader transformation data.
 *//*  w  w w .j  a va 2s . c  o  m*/
public void setTransformationMatrix(Matrix4f value) {
    GL20.glUseProgram(programID);
    value.store(matrixBuf);
    matrixBuf.flip();
    GL20.glUniformMatrix4fv(getUniformVariableLocation("transformationMatrix"), false, matrixBuf);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Sets the value of a uniform variable in the shader.
 * @param location The integer id of the Uniform variable.
 * @param value The value to set./* ww  w . j av  a 2  s . c o  m*/
 */
public void setUniformVariable(int location, float value) {
    GL20.glUseProgram(programID);
    GL20.glUniform1f(location, value);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Sets the value of a uniform variable in the shader.
 * @param location The integer id of the Uniform variable.
 * @param value The value to set.//from w w w.  j  av a2s  .c  o  m
 */
public void setUniformVariable(int location, Vector3f value) {
    GL20.glUseProgram(programID);
    GL20.glUniform3f(location, value.x, value.y, value.z);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Sets the value of a uniform variable in the shader.
 * @param location The integer id of the Uniform variable.
 * @param value The value to set.//from  w ww  .j a v a 2s .co m
 */
public void setUniformVariable(int location, boolean value) {
    GL20.glUseProgram(programID);
    GL20.glUniform1f(location, value ? 1f : 0f);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Sets the value of a uniform variable in the shader.
 * @param location The integer id of the Uniform variable.
 * @param value The value to set.//from w w w  .  j a  v a 2s  .  co m
 */
public void setUniformVariable(int location, Matrix4f value) {
    GL20.glUseProgram(programID);
    value.store(matrixBuf);
    matrixBuf.flip();
    GL20.glUniformMatrix4fv(location, false, matrixBuf);
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Finalizes the shader and prepares it for rendering.
 * This is called automatically!/*w ww.j ava2s  .c  om*/
 */
public void finish() {
    GL20.glUseProgram(programID);
    GL20.glLinkProgram(programID);
    GL20.glValidateProgram(programID);
    setProjectionMatrix(Game.getCurrentInstance().getRenderer().getProjectionMatrix());
    finalized = true;
}