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English forum / GeeXLab SDK ?
« Last post by Alex on November 27, 2016, 01:26:11 AM »
Hi JeGX,

Can I buy professional version of GeeXLab ?

Long ago there was SDK version allowing one to create and package windows application. I very much liked that feature.

3D-Tech News Around The Web / VLC media player 3.0.0 Technical Preview
« Last post by Stefan on November 26, 2016, 01:59:17 PM »
   VLC & 360°

 With the help of Giroptic, VLC becomes the first major video player app to play 360° videos out of the box.
 VLC 3.0 final release will merge those features on all platforms.
English forum / Re: Shadertoy multipass demos
« Last post by Stefan on November 25, 2016, 10:53:17 PM »
Ok, I looked at the neon clock demo and you have forgot (in file frame_user.lua) to update the iFrame uniform variable of the shadertoy_prog_img GPU program:

Yikes! Thanks for the heads-up.


If there are no real textures, you can make the code smaller by replacing iChannelResolution[0] with iResolution

This demo uses
uniform float     iTimeDelta; // Time it takes to render a frame, in seconds 
Seems to work with or without 
gh_gpu_program.uniform1f(shadertoy_prog_buf_a, "iTimeDelta", elapsed_time)

Using gfx.write_text() causes a white screen?

Game rules:
click a tile for new mutations, red cross for new population
white square to lock a tile (exclude from mutation)
green square to show in big
green cross to randomly mate locked tiles

General Discussion / [3dFoin] Black Friday, 90% off limited deals
« Last post by 3dFoin on November 25, 2016, 09:59:39 PM »

Hi everyone :D It's Black Friday and we are summoning the annual Lucky Pack!

Lucky Pack contains all of our 3D models: Dark Knight, Female Warrior, Male Peasant, Female Peasant, Krasue, Dragon, Short Goblin, Goblin Assassin, Basilisk, Statue Pack, The Baby, Hydra, Fantasy Snake, Saber Tooth, T.Rex, Dragon Bat, Dragon Bug, Royal Knight, Eric The Shooter, Gargoyle, Elongata, Watcher, Dragon Worm, Triceratops, Royal Sorceress, Genie, The Girl, Mushroom Monster, Royal Archer, Sould Eater, Wyvern, The Chick, Badass Spider, Dragon Turtle, Royal Executioner, Manticore, Action Hero, Mermaid, Devil Cat, Fantasy Lizard, Female Royal Knight, Female Ninja, Centaur, Orthos, Raptor Strong Zombie, Royal Wizard, Fire Bringer Statue, Dragon Boss, Modern Wizard, Ogre, Female Centaur, Ancient God Statue, Animated Hand Statue and Unicorn plus Fantasy Interface Pack (total $994) and the price is $99 only!!! (for more than 40GB of textures and models), you save 90%!!!

Which means it's likely 2.4 dollars for each of our high quality game-ready model.

But not just that, you will get 2017 3dFoin Membership, which mean you can download all the models that come out in 2017 also. Amazing right? XD

This pack appears randomly once a year so you don't know when you can expect it. It can only be purchased 5 times, so only 5 persons can buy all of our high quality models with such an incredible price, after that, the pack will vanish. That's why we call it the Lucky Pack. ^^

Are you right on time or are you too late? You can try your fortune at:

Good luck! :D

BTW we have a new model also it's the Unicorn:


English forum / Rendering real time 3D on RGB LED Matrix Panel with GeeXLab - Part 2
« Last post by JeGX on November 25, 2016, 06:55:27 PM »
Second article: Adafruit RGB Matrix HAT: the Raspberry Pi can talk with the RGB LED Matrix Panel

Here the second article (first one is HERE) about how to render real time 3D stuff on a RGB LED matrix panel with a Raspberry Pi. In this article, we’ll look at the hardware interface between the Raspberry Pi and the RGB LED matrix display: the RGB Matrix HAT.


English forum / Re: Shadertoy multipass demos
« Last post by JeGX on November 25, 2016, 06:42:39 PM »
More tests, need more help  :-[


Ok, I looked at the neon clock demo and you have forgot (in file frame_user.lua) to update the iFrame uniform variable of the shadertoy_prog_img GPU program:

Code: [Select]
if ((img > 0) and (shadertoy_prog_img > 0)) then


  gh_gpu_program.uniform3f(shadertoy_prog_img, "iResolution", winW, winH, 0.0)
  gh_gpu_program.uniform1f(shadertoy_prog_img, "iGlobalTime", elapsed_time)
  gh_gpu_program.uniform4f(shadertoy_prog_img, "iMouse", mx, my, mz, 0)
  local timestamp = os.time()
  local tmp ="*t", timestamp)
  local time_seconds = tmp.hour * 3600.0 + tmp.min * 60.0 + tmp.sec
  gh_gpu_program.uniform4f(shadertoy_prog_img, "iDate", tmp.year, tmp.month,, time_seconds)
  gh_texture.rt_color_bind(buf_A, 0)
  gh_gpu_program.uniform1i(shadertoy_prog_img, "iChannel0", 0)
  gh_gpu_program.uniform1i(shadertoy_prog_img, "iFrame", frame)
  draw_quad(0, 0, winW, winH) 

Thanks to that line, the demo works perfectly:

I added this demo to the code sample pack. Thanks Stefan for the porting  ;)
3D-Tech News Around The Web / Vulkan API specifications 1.0.34 released
« Last post by JeGX on November 25, 2016, 05:51:30 PM »
Change log for November 18, 2016 Vulkan 1.0.34 spec update:

 * Bump API patch number and header version number to 34 for this update.

Github Issues:

  * Allow vkUpdateDescriptorSets overflow to skip empty bindings. Clarify
    that unused bindings have a descriptorCount of zero. Improve some valid
    usage for vkUpdateDescriptorSets (public issue 256).
  * Require that slink:VkImageSubresourceRange always define a non-empty
    range of the resource (public issue 303).
  * Added valid usage for slink:VkPresentInfoKHR on the layout of presented
    images (public issue 397).

Internal Issues:

  * Add dependency in src/spec/Makefile so specversion.txt is regenerated
    when needed (internal issue 462).
  * Shorten the table of contents in the single-page ref page HTML output.
    Still working on the PDF (internal issue 536).


English forum / Re: Shadertoy multipass demos
« Last post by Stefan on November 25, 2016, 04:51:43 PM »
More tests, need more help  :-[


alternate mouse-click not working so i had to edit pixel shader
iMouse.w changed to iMouse.z


old iDate code not working, clock is stuck at 0:00

English forum / Logitech G and RGB LED Illumination: the mouse
« Last post by JeGX on November 25, 2016, 08:13:48 AM »
I tested the LED lighting functions with the Logitech G Proteus Spectrum gaming mouse.

English forum / Re: Shadertoy multipass demos
« Last post by Stefan on November 24, 2016, 07:08:02 PM »
First try:
othello - human vs. computer

I have an issue with iMouse.z
It does mouse-over instead of mouse-click with either your new code

  gh_gpu_program.uniform4f(shadertoy_prog_buf_a, "iMouse", mx, my, mz, 0)

or my old code

  local mx, my = gh_input.mouse_getpos()
  local mz = gh_input.mouse_get_button_state(1)
  local mw = mz
  gh_gpu_program.uniform4f(shadertoy_prog_buf_a, "iMouse", mx, my, mz, mw)

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