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Ray Tracing Engine on C (project from school 42)

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text		text
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RTv1-42

Ray Tracing Engine on C using SDL2. (project from school42(UNIT Factory))

made by tmaluh(_ipal)

Addiitonal SDL2 pre-installation:

Ubuntu, Debian:

$> sudo apt-get install libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev

Fedora:

$> sudo dnf install SDL2-devel SDL2_ttf-devel SDL2_image-devel

MacOS:

$> brew install sdl2 sdl2_image sdl2_ttf

I'm not tested this on other OS or distros.

Additional info:

This project inlcudes also a few my other projects. It's librarieslibvectors,libft andlibftsdl, and 1 other - forkedparson

Compiling

Usemake for compiling all files.

When you have already installed SDL2 library you can use this simple rules:

make: Compile all.
make clean: Delete all RTv1, libft and libftsdl temporary files.
make del: Delete temporary RTv1 files only.
make fclean: Expandsmake clean to delete also executable RTv1, libraries libft and libftsdl.
make re: It's rules -make fclean &make in one.
make pre: It's rules -make del &make in one.
make profie_all: Re-compile all RTv1 source files without optimization flags but with-no-pie -pg -O0 for profiling.
make debug_all: Re-compile all RTv1 source files without optimization flags but with-g3 for debug.
make profile: Compile RTv1 source files without optimization flags but with-no-pie -pg -O0 for profiling.
make debug: Compile RTv1 source files without optimization flags but with-g3 for debug.
make norme: Check all libft, libftsdl and RTv1*.c and*.h files for norme errors. (Works only on MacOS in school42)

If you change RTv1 source code use:make del & make or equal rule -make pre for re-compile only RTv1 executable without re-compile libft and libftsdl.
If you chnage libft or libftsdl source code use:make -C libft orcd libft && make ||make -C libftsdl orcd libftsdl && make
If you wants to re-compile libft and libftsdl for debug use:make -C libft debug_all andmake -C libftsdl debug_all.

Usage:

$> ./bin/RTv1 [flags-params] scenes/<scene_name>.json

Flags:

Flag	Description	Shortcut	Valid values	Default value	Value type	Dependency on`-dbg` mode
--help	Print short flags description. After print RTv1 will automatically close.	-h	none	none	none	no
WITH PARAMS:
--viewportScale	How many times will be increased viewport.	-vps	0.000001-10.0	1.0	Float	no
--ambientLight	On how much shadow must be darker. (Greater - brighter)	-al	0.000001-100.0	0.0	Float	no
--fpsTextColor	FPS counter info text color.	-ftc	All HEX values	0x7FFF00	HEX	yes
--fpsRefreshTimer	How often will refresh FPS counter. (in ms)	-frt	0-500	25	Integer	yes
--antiAliasing	Enable simplified anti-aliasing algorithm.	-aa	2-16	0	Integer	no
BOOLEAN:
--debug	Enable keybinds switcher(debug) mode.	-dbg	none	not enabled	none
--noCalcLight	Disable calc all light origins.	-ncl	none	not enabled	none	no
--textured	Enable textured rendering.	-t	none	not enabled	none	no
--randomLightsIntense	Enable randomaize lights intense.	-rli	none	not enabled	none	yes
--printUsage	Print usage for -dbg mode.	-pu	none	not enabled	none	yes
OTHER:
--noBorder	Create window without borders.	-nb	none	not enabled	none	no

Note: always put scene file in arguments line, because flags will parse only after successful read scene file.

Example:

$> ./bin/RTv1 --debug -vps 0.5 -t -pu -ftc 0x1 -frt 0 -al 10 -nb -aa 4 scenes/sphere.json

Keybinds:

All binds below works only with`-dbg` flag.

General keybinds what works in all keybind modes:

Description	Keybinding
Toggle on\off rendering info.	`Z`
Toggle on\off calculating and rendering shadows. (`eShadows` scene param)	`H`
Toggle on\off rendering textures. (-t)	`Y`
Toggle on\off calculating light origins. (-ncl)	`N`
Exit.	`Esc`

[`Keybinds mode switcher binds`]:

Name	Description	Keybinding
Switcher keybind mode to control all light origins or objects.	After first press is active`Lights Control Mode` keybinds, after second press -`Objects Control Mode`. Keybinds after third press retruns to`Default Camera Control Mode`. All keybinds valid for all light origins or objects dependecny on mode.	`X`
Increase speed value.	Increase speed value for changing movements[default] or intensity\specular[optional].	`LShift`
Decrease speed value.	Decrease speed value for changing movements[default] or intensity\specular[optional].	`LCtrl`

[`Default Camera Control Mode`]:

Description	Keybinding
Move camera up.	`W`
Move camera left.	`A`
Move camera down.	`S`
Move camera right.	`D`
Move camera backward.	`Q`
Move camera forward.	`E`
Increase camera rotate by X-axis.	`R`
Increase camera rotate by Y-axis.	`F`
Increase camera rotate by Z-axis.	`V`
Decrease camera rotate by X-axis.	`T`
Decrease camera rotate by Y-axis.	`G`
Decrease camera rotate by Z-axis.	`B`

[`Lights Control Mode`]:

Description	Keybinding
Move lights up.	`W`
Move lights left.	`A`
Move lights down.	`S`
Move lights right.	`D`
Move lights forward. [default]	`E`
Move lights backward. [default]	`Q`
Switch to control lights intensity.	`C`
Decrease lights inensity. [optional]	`Q`
Increase lights inensity. [optional]	`E`

[`Objects Control Mode`]:

Description	Keybinding
Move objects up.	`W`
Move objects left.	`A`
Move objects down.	`S`
Move objects right.	`D`
Move objects forward. [default]	`E`
Move objects backward. [default]	`Q`
Switch to control objects specular.	`C`
Decrease objects specular. [optional]	`Q`
Increase objects specular. [optional]	`E`
Increase objects rotate by X-axis.	`R`
Increase objects rotate by Y-axis.	`F`
Increase objects rotate by Z-axis.	`V`
Decrease objects rotate by X-axis.	`T`
Decrease objects rotate by Y-axis.	`G`
Decrease objects rotate by Z-axis.	`B`

Profilig (with gprof, gprof2dot and graphviz):

For re-compile whole project for correct profiling use this command:

$> make profile_allr

After re-compile just run./RTv1. More info about profiling oneax.me(RU).

Example on:

$> ./bin/RTv1 -dbg scenes/sphere.json

Example on:

$> ./bin/RTv1 -dbg scenes/all.json

Example on:

$> ./bin/RTv1 scenes/all.json

Example on:

$> ./bin/RTv1 scenes/sphere.json

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RTv1-42

Ray Tracing Engine on C using SDL2. (project from school42(UNIT Factory))

made by tmaluh(_ipal)

Addiitonal SDL2 pre-installation:

I'm not tested this on other OS or distros.

Additional info:

Compiling

Usage:

Flags:

Note: always put scene file in arguments line, because flags will parse only after successful read scene file.

Example:

Keybinds:

All binds below works only with-dbg flag.

General keybinds what works in all keybind modes:

[Keybinds mode switcher binds]:

[Default Camera Control Mode]:

[Lights Control Mode]:

[Objects Control Mode]:

Profilig (with gprof, gprof2dot and graphviz):

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All binds below works only with`-dbg` flag.

[`Keybinds mode switcher binds`]:

[`Default Camera Control Mode`]:

[`Lights Control Mode`]:

[`Objects Control Mode`]:

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