Example usage for org.lwjgl.opengl GL20 glGetUniformLocation

Introduction

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

Prototype

@NativeType("GLint")
public static int glGetUniformLocation(@NativeType("GLuint") int program,
        @NativeType("GLchar const *") CharSequence name)

Source Link

Document

Returns the location of a uniform variable.

Usage

From source file:com.samrj.devil.gl.ShaderProgram.java

License:Open Source License

/**
 * Specifies the value of a uniform variable for this program. Program must
 * be in use. Returns true if and only if the uniform exists and is active.
 * /* w  w  w. j  av  a2s .co  m*/
 * @param name The name of the uniform to specify.
 * @return Whether or not the uniform exists and is active.
 */
public boolean uniformMat2(String name, Mat2 matrix) {
    if (DGL.currentProgram() != this)
        throw new IllegalStateException("Program must be in use.");
    int loc = GL20.glGetUniformLocation(id, name);
    if (loc < 0)
        return false;

    long address = MemStack.wrap(matrix);
    GL20.nglUniformMatrix2fv(loc, 1, false, address);
    MemStack.pop();
    return true;
}

From source file:com.samrj.devil.gl.ShaderProgram.java

License:Open Source License

/**
 * Specifies the values of a uniform variable array for this program. Must
 * be in use. Returns true if and only if the uniform exists and is active.
 * //w w w .ja  v a2s .  c o m
 * @param name The name of the uniform array to specify.
 * @param array An array of values to set the uniform to.
 * @return Whether or not the uniform exists and is active.
 */
public boolean uniformMat2v(String name, Mat2... array) {
    if (DGL.currentProgram() != this)
        throw new IllegalStateException("Program must be in use.");
    int loc = GL20.glGetUniformLocation(id, name);
    if (loc < 0)
        return false;

    long address = MemStack.wrapv(array);
    GL20.nglUniformMatrix2fv(loc, array.length, false, address);
    MemStack.pop();
    return true;
}

From source file:com.samrj.devil.gl.ShaderProgram.java

License:Open Source License

/**
 * Specifies the value of a uniform variable for this program. Program must
 * be in use. Returns true if and only if the uniform exists and is active.
 * //from w w  w  .  j  a  v a 2 s.  co  m
 * @param name The name of the uniform to specify.
 * @return Whether or not the uniform exists and is active.
 */
public boolean uniformMat3(String name, Mat3 matrix) {
    if (DGL.currentProgram() != this)
        throw new IllegalStateException("Program must be in use.");
    int loc = GL20.glGetUniformLocation(id, name);
    if (loc < 0)
        return false;

    long address = MemStack.wrap(matrix);
    GL20.nglUniformMatrix3fv(loc, 1, false, address);
    MemStack.pop();
    return true;
}

From source file:com.samrj.devil.gl.ShaderProgram.java

License:Open Source License

/**
 * Specifies the values of a uniform variable array for this program. Must
 * be in use. Returns true if and only if the uniform exists and is active.
 * //from   ww  w. jav  a 2s  .com
 * @param name The name of the uniform array to specify.
 * @param array An array of values to set the uniform to.
 * @return Whether or not the uniform exists and is active.
 */
public boolean uniformMat3v(String name, Mat3... array) {
    if (DGL.currentProgram() != this)
        throw new IllegalStateException("Program must be in use.");
    int loc = GL20.glGetUniformLocation(id, name);
    if (loc < 0)
        return false;

    long address = MemStack.wrapv(array);
    GL20.nglUniformMatrix3fv(loc, array.length, false, address);
    MemStack.pop();
    return true;
}

From source file:com.samrj.devil.gl.ShaderProgram.java

License:Open Source License

/**
 * Specifies the value of a uniform variable for this program. Program must
 * be in use. Returns true if and only if the uniform exists and is active.
 * /* ww  w  . j  a v a2  s.com*/
 * @param name The name of the uniform to specify.
 * @return Whether or not the uniform exists and is active.
 */
public boolean uniformMat4(String name, Mat4 matrix) {
    if (DGL.currentProgram() != this)
        throw new IllegalStateException("Program must be in use.");
    int loc = GL20.glGetUniformLocation(id, name);
    if (loc < 0)
        return false;

    long address = MemStack.wrap(matrix);
    GL20.nglUniformMatrix4fv(loc, 1, false, address);
    MemStack.pop();
    return true;
}

From source file:com.samrj.devil.gl.ShaderProgram.java

License:Open Source License

/**
 * Specifies the values of a uniform variable array for this program. Must
 * be in use. Returns true if and only if the uniform exists and is active.
 * /*from  w  w  w .j a  v a 2  s.  c  o  m*/
 * @param name The name of the uniform array to specify.
 * @param array An array of values to set the uniform to.
 * @return Whether or not the uniform exists and is active.
 */
public boolean uniformMat4v(String name, Mat4... array) {
    if (DGL.currentProgram() != this)
        throw new IllegalStateException("Program must be in use.");
    int loc = GL20.glGetUniformLocation(id, name);
    if (loc < 0)
        return false;

    long address = MemStack.wrapv(array);
    GL20.nglUniformMatrix4fv(loc, array.length, false, address);
    MemStack.pop();
    return true;
}

From source file:com.sgflt.ShaderManager.ShaderManager.java

License:Apache License

/**
 * Pass a FloatBuffer to the active shader. The shader to which the value will be passed must be bound.
 * /*from w  w  w .  j ava  2s.  c  o  m*/
 * @param varName Name of the variable that is in the shader program. Must be an exact match.
 * @param buf FloatBuffer to be passed to the shader.
 */
public void putFloatBuffer(String varName, FloatBuffer buf) {
    if (activeShader != null) {
        //Courtesy of Drew Malin (that dick made me put this in here)
        int location = GL20.glGetUniformLocation(activeShader.shaderProgram, varName);
        buf.flip();
        GL20.glUniform1(location, buf);
    }
}

From source file:com.sgflt.ShaderManager.ShaderManager.java

License:Apache License

/**
 * Pass a float to the active shader. The shader to which the value will be passed must be bound.
 * /*w w  w.j  a  va2  s  .  c  o  m*/
 * @param varName Name of the variable that is in the shader program. Must be an exact match.
 * @param x Primitive float to be passed to the shader.
 */
public void putFloat(String varName, float x) {
    if (activeShader != null) {
        int location = GL20.glGetUniformLocation(activeShader.shaderProgram, varName);
        GL20.glUniform1f(location, x);
    }
}

From source file:com.sgflt.ShaderManager.ShaderManager.java

License:Apache License

/**
 * Pass an LWJGL Vector2f to the active shader. The shader to which the value will be passed must be bound.
 * /*from  w ww  .  j a v  a 2 s . c  om*/
 * @param varName Name of the variable that is in the shader program. Must be an exact match.
 * @param v LWJGL Vector2f.
 */
public void putVector2f(String varName, Vector2f v) throws NullPointerException {
    if (v == null) {
        throw new NullPointerException("Vector2f passed is null.");
    }
    if (activeShader != null) {
        int location = GL20.glGetUniformLocation(activeShader.shaderProgram, varName);
        GL20.glUniform2f(location, v.x, v.y);
    }
}

From source file:com.sgflt.ShaderManager.ShaderManager.java

License:Apache License

/**
 * Pass an LWJGL Vector3f to the active shader. The shader to which the value will be passed must be bound.
 * //from   w  w w  .jav a2  s.  co  m
 * @param varName Name of the variable that is in the shader program. Must be an exact match.
 * @param v
 */
public void putVector3f(String varName, Vector3f v) throws NullPointerException {
    if (v == null) {
        throw new NullPointerException("Vector3f passed is null.");
    }
    if (activeShader != null) {
        int location = GL20.glGetUniformLocation(activeShader.shaderProgram, varName);
        GL20.glUniform3f(location, v.x, v.y, v.z);
    }
}