Render function. (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)

Extract the format out of a format string with leading or trailing decorations fmt = "blah blah" -> return fmt fmt = "%.3f" -> return fmt fmt =

Trim str by offsetting contents when there's leading data + writing a \0 at the trailing position. We use this in situation where the cost is negligib

Find end-of-line. Return pointer will point to either first \n, either str_end.

Based on stb_to_utf8() from github.com/nothings/stb/

Not optimal but we very rarely use this function.

Demonstrate creating a window which gets auto-resized according to its content.

Demonstrate creating a window with custom resize constraints.

Demonstrate using the low-level ImDrawList to draw custom shapes.

Demonstrate create a window with multiple child windows.

Demonstrate creating a simple log window with basic filtering.

Demonstrate/test rendering huge amount of text, and the incidence of clipping.

Demonstrate creating a fullscreen menu bar and populating it.

Demonstrate create a simple property editor.

Demonstrate creating a simple static window with no decoration + a context-menu to choose which corner of the screen to use.

Demonstrate using "##" and "###" in identifiers to manipulate ID generation. This apply to all regular items as well. Read FAQ section "How can I have

Helper: Text buffer for logging/accumulating text

Function:

Function:

computes the norm (albedo) of the BRDF the average Schlick Fresnel value the average direction of the BRDF ����norm��fresnel��averageDir���dz���BRDF���

compute the error between the BRDF and the LTC using Multiple Importance Sampling �ֱ��BRDF��LTC�������Ҫ�Բ������ɳ�L��Ȼ��������ֲַ���ֵ�IJ��죬���������ܶ�

Function:

Function:

Function:

Function:

Function:

Function:

fit brute force refine first guess by exploring parameter space

fit data tab��洢����LTC����tabMagFresnel��洢����LTC��magnitude��fresnel

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function:

Function: