void
DEMOGL_LoadingPBSetAppearance(
	const bool bHorizontal, 
	const bool bBlend, 
	const GLenum iBlendSrc, 
	const GLenum iBlendDst, 
	const float fOpacity,
	const float fBGColor_R, 
	const float fBGColor_G,	
	const float fBGColor_B, 
	const float fBarColor_R, 
	const float fBarColor_G, 
	const float fBarColor_B
);
	

bHorizontal

Specifies if the progress bar should be a horizontal progress bar (true) or a vertical (false).

bBlend

Specifies if the progress bar should be blended with the contents of the framebuffer. This way you can create semi transparent progress bars. If bBlend is false, iBlendSrc and iBlendDst are ignored.

iBlendSrc

Specifies the source color fragment blending function. Similar to the first parameter of OpenGL function glBlendFunc. See that function for possible values for iBlendSrc

iBlendDst

Specifies the destination color fragment blending function. Similar to the second parameter of OpenGL function glBlendFunc. See that function for possible values for iBlendDst

fOpacity

Specifies the alpha value of the background and bar itself. When bBlend is false this value will not have any effect. This value should be in the range [0.0, 1.0]. OpenGL will clamp all values outside this range to this range.

fBGColor_R

Specifies the red color fragment of the background of the progress bar. This value should be in the range [0.0, 1.0]. OpenGL will clamp all values outside this range to this range.

fBGColor_G

Specifies the green color fragment of the background of the progress bar. This value should be in the range [0.0, 1.0]. OpenGL will clamp all values outside this range to this range.

fBGColor_B

Specifies the blue color fragment of the background of the progress bar. This value should be in the range [0.0, 1.0]. OpenGL will clamp all values outside this range to this range.

fBarColor_R

Specifies the red color fragment of the enlarging bar of the progress bar. This value should be in the range [0.0, 1.0]. OpenGL will clamp all values outside this range to this range.

fBarColor_G

Specifies the green color fragment of the enlarging bar of the progress bar. This value should be in the range [0.0, 1.0]. OpenGL will clamp all values outside this range to this range.

fBarColor_B

Specifies the blue color fragment of the enlarging bar of the progress bar. This value should be in the range [0.0, 1.0]. OpenGL will clamp all values outside this range to this range.

When this function is called, it will have effect immediately, you can call this function more times after eachother, for example from every Init() method of all your effects.

// Enable the progress bar at the bottom of the screen, screenwide.
// Make it a linear progress bar.
DEMOGL_LoadingPBEnable(DGL_CNTRL_PGB_LINEAR, 1.0f, 0.02f,  0.0f, 0.0f);

// Set Progress bar appearance. Make it horizontal
DEMOGL_LoadingPBSetAppearance(true, false, GL_SRC_COLOR, 
	GL_ONE_MINUS_SRC_COLOR, 1.0f, 0.5f, 0.5f, 0.5f, 1.0f, 1.0f, 1.0f);