[Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == CalcItemWidth(). Those tw

Calculate default item width given value passed to PushItemWidth() or SetNextItemWidth(). The SetNextItemWidth() data is generally cleared/consumed by

Computes the radiance reflected off a surface towards the eye given the differential irradiance from a given direction

Helper to calculate coarse clipping of large list of evenly sized items. NB: Prefer using the ImGuiListClipper higher-level helper if you can! Read co

Calculate text size. Text can be multi-line. Optionally ignore text after a ## marker. CalcTextSize("") should return ImVec2(0.0f, g.FontSize)

t0 = previous time (e.g.: g.Time - g.IO.DeltaTime) t1 = current time (e.g.: g.Time) An event is triggered at: t = 0.0f t = repeat_delay, t = re

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Advanced: Channels - Use to split render into layers. By switching channels to can render out-of-order (e.g. submit FG primitives before BG primitives

For compressed textures (mHeight == 0): compare the format hint against a given string. @param s Input string. 3 characters are maximally processed. E

- Get***() functions find pair, never add/allocate. Pairs are sorted so a query is O(log N) - Set***() functions find pair, insertion on demand if mis

Clear the string - reset its length to zero */

Simple version, may lead to an inverted rectangle, which is fine for Contains/Overlaps test but not for display.

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------------------------------------------------------------------- Closes the given file and releases all resources associated with it. */

Button to close a window

Close the popup we have begin-ed into.

CoefficientSpectrum Public Methods

CollapsingHeader returns true when opened but do not indent nor push into the ID stack (because of the ImGuiTreeNodeFlags_NoTreePushOnOpen flag). This

A little colored square. Return true when clicked. FIXME: May want to display/ignore the alpha component in the color display? Yet show it in the tool

Convert hsv floats ([0-1],[0-1],[0-1]) to rgb floats ([0-1],[0-1],[0-1]), from Foley & van Dam p593 also http://en.wikipedia.org/wiki/HSL_and_HSV

Convert rgb floats ([0-1],[0-1],[0-1]) to hsv floats ([0-1],[0-1],[0-1]), from Foley & van Dam p592 Optimized http://lolengine.net/blog/2013/01/13/fas

Edit colors components (each component in 0.0f..1.0f range). See enum ImGuiColorEditFlags_ for available options. e.g. Only access 3 floats if ImGuiCo