User talk:BillW

Just dropping this all here as an all-inclusive to-do list. Feel free to pick up a project and research or develop it as far as you're able.

Drop-Down Insert Menu						
	Wireframe shapes					
	Basic scene					
	Text					
	Mathematical text					
	axes					
	dependencies					
	Dodecahedron normals					
	Icosahedron normals					
	trace ()					news.povray.org/povray.binaries.tutorials/thread/%3Cweb.51f61e827603294573fc9ebb0%40news.povray.org%3E/
						
						
						
Function graphing					I have a system to graph equations.  I think it might have a few axis-labeling bugs, and needs texting and fixing.
Parametric mesh						Takes parametric equations in x, y, and z and creates quads that are composed of 2 triangles.  Can stepwise cycle through parameters.
Parametric mesh2					Same as above
Read / Write to/from file				basically just want a simple Insert Menu item to drop functional code into a scene	
Isosurface Evaluate					Same as above
Heightfield correcting macro				Newsgroup discussion implies that an Insert Menu for generating properly formed and oriented heightfield from function code would be desirable
Image_map in memory from a function			
Analytical Geometry include				Just would like Friedrich Lohmueller's include files to get cleaned up, formatted, and clearly commented as to purpose of each macro
irid							Good looking iridescence can be tricky to implement, so a sample scene would be extremely helpful.
3-point lighting					Warp had a good tutorial.  Having a macro to set up basic 3-point lighting would help new users a lot
transparent background					This is a very frequently asked question.  Make the fix an Insert Menu item (comments)
Data structures						There are a lot of useful data structures that would make writing scenes so much easier, or even possible
Vector math						There are lots of clever things that can be done with matrices, determinants, vdot and vcross
matrices						Need actual mathematical matrix methods to add, multiply, exponentiate, Gaussian elimination, transpose, eigenvalues, trace, ...
Solve geometric problems				nearest point to object, intersections, 	
Scene layout tools					Grids, object locators, special light source diagramming aids
Matrix determinants					for any MxN matrix
Minimum visible sphere radius				How to set up camera so that a sphere completely fills the viewport - extends edge to edge of smallest dimension
Analytical tangents between 2 circles			I have an extensive system to do this and also create a prism from an enclosed path.
Numerical pigment patterns				I have hundreds of equations to make pigment {function {}} patterns
Catenary						It's unclear if we have an easy-to-use macro that is mathematically correct
Full-color pigment					Insert Menu item to make an average pattern rgbft pigment
f_Identifier - function					For large, complex scenes, sometimes it's easier to have a system of naming identifiers as to type
v_Identifier - vector quantity						
s_Identifier - scalar quantity						
C_Identifier - color						
P_Identifier - Pigment						
T_Identifier - Texture						
L_Identifier - a loop variable: #for (L_Identifier, 0, 10)						
Point transforms					rotate () or translate () a "point" (vector)	
eval_pigment ()						Insert Menu item
now ()							Example usages for timing parsing
trace ()						Insert Menu sample code for tracing an object.  Also, tutorial graphic.
orthographic						Insert Menu camera setup with explanation of pixel size in POV-units & "zoom"
macro names						Some macros ought to be renamed for clarity, or have alias macros that call the poorly-named one
Use cases						Certain features or keywords are hard puzzle out the proper syntax and method of usage
Sorting							I have a lot of sorting macros which ought be made into a general-purpose include file
Array macros						Various macros that make using arrays easier and more versatile
srgb							An extensively discussed topic that could use a comprehensive macro for proper color conversion
GitHub repositories					There are various GitHub repositories of code that ought to be implemented as include files, etc.
Wiki accounts						These need to be expanded and made more accessible from the main forum
Barycentric coordinates					These can be exceedingly tricky to implement.  I have a series of macros to perform specific operations in triangular space.
Stacks							Myself and others have useful macros for pushing, popping, inserting, and deleting from a stack.
Pipes							
Normal maps						Functions and macros for generating normal maps
Vector swizzling					These need to be implemented in source, but for now, practical work-arounds need to be invented
Prism macro for 3D vectors				Prisms only use 3d vectors. It's a pain to convert 3D to 2D.  Maybe a macro to automate the process.
reflected ray macro/function				I have a macro to calculate the direction of a ray reflected from a surface
multiple result trace ()				https://news.povray.org/povray.pov4.discussion.general/message/%3Cweb.67ba2b4018d596021f9dae3025979125%40news.povray.org%3E/#%3Cweb.67ba2b4018d596021f9dae3025979125%40news.povray.org%3E
Lerp						
invLerp						
Remap						
convex hull						
Trig functions						
bitwise XOR						
lucida-sans-unicode.ttf						allfont.net/download/lucida-sans-unicode/#download
arial-unicode-ms.ttf						ufonts.com/downloads/197925!474209627
Rendering with ini files						wiki.povray.org/content/Documentation:Unix_Section_5#INI_File_Sections
2-pass radiosity						
Monolithic include file			snip out used parts to make Scene_standalone?			
Keyword examples						
example scenes						
convolution						
FFT						
camera location						
point object						
bicubic patch texture interpolation						
no absolute zeros in pigments						
Test Object						
Standard render rig for comparisons						
Thomas Fester posts						
vector object - position + normal						
Gray code						
decimal to binary						
Media macros						
Ini file SECTIONS						
input file name						
use pattern to get B&W pigment						
Hilbert curves						
for each macro		(thread)				
jr's macros						
pov earth macros						
area light macro		area light setup thread				
comparison of numeric values in functions					(y<0) (x>0) (z=0)	
Fractracer						
lohmueller include translations						
Mike Williams function thickening						
						
						
						
						
						
						
						
						
						
						
						
						
Include files						
	Chris Colefax					
	GALAXY					
	TILE GENERATOR					
	COMPRESSED MESH macro					
	CITY GENERATOR					
	LIQUID SPRAY					
	OBJECT EXPLODER					
	BRUSHED METAL					
	LENS EFFECTS					
	OBJECT BENDER					
	COILS					
	SPIDERWEB					
						
						
	Rune					
	PARTICLE SYSTEM					
	ELECTRICITY					
	INVERSE KINEMATICS for necks/tentacles					
	ILLUSION					

					
						
/* Image/Bump Map projection methods */	
(I believe that some are as yet unimplemented - BW)				
#define PLANAR_MAP      0						
#define SPHERICAL_MAP   1						
#define CYLINDRICAL_MAP 2						
#define PARABOLIC_MAP   3						
#define HYPERBOLIC_MAP  4						
#define TORUS_MAP       5						
#define PIRIFORM_MAP    6						
#define OLD_MAP         7