FIND :

static void R_RGBA8Image( idImage *image ) {
	byte	data[DEFAULT_SIZE][DEFAULT_SIZE][4];

	memset( data, 0, sizeof( data ) );
	data[0][0][0] = 16;
	data[0][0][1] = 32;
	data[0][0][2] = 48;
	data[0][0][3] = 96;

	image->GenerateImage( (byte *)data, DEFAULT_SIZE, DEFAULT_SIZE,
		TF_DEFAULT, false, TR_REPEAT, TD_HIGH_QUALITY );
}

INSERT :

static void R_RGB8ZeroClampImage( idImage *image ) {
	byte	data[DEFAULT_SIZE][DEFAULT_SIZE][4];

	memset( data, 0, sizeof( data ) );
	data[0][0][0] = 0;
	data[0][0][1] = 0;
	data[0][0][2] = 0;
	data[0][0][3] = 0;

	image->GenerateImage( (byte *)data, DEFAULT_SIZE, DEFAULT_SIZE,
		TF_LINEAR, false, TR_CLAMP_TO_ZERO, TD_HIGH_QUALITY );
}