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sâmbătă, 7 noiembrie 2020

Shadertoy: Build a geometric pattern - 001.

In this tutorial I will show you a simple geometric pattern created with the dot, sin and values taken by the mouse.
This example was built using shader toy online editor.
The source basket contains four lines of code.
The last line of source code is the output with data to display.
The other lines of source code are very simple to understand.
The values of a and b are values created by dividing fragCoord to iResolution of window ...
The fragCoord contains the pixel coordinates of the pixel where the shader is being applied.
The sin_dot will compute the sin of dot from a , b and mouse position.

vineri, 30 octombrie 2020

Ubisoft comes with Assassin's Creed Valhalla.

Assassin's Creed Valhalla will be available on 10th November, 2020 on Xbox Series X, Xbox Series S, Xbox One, PlayStation®4, the Epic Games Store and Ubisoft Store on Windows PC, as well as on UPLAY+**, Ubisoft’s subscription service, and Stadia.
Pre-order now at www.assassinscreed.com/buy
The intro is simple ...
Ninth century AD. Driven from Norway by endless wars and dwindling resources, a Viking raider, Eivor, leads a clan of Norsemen across the icy North Sea to the rich lands of England’s broken kingdoms. Their mission: establish a new permanent home, no matter the cost. Wars will rage. Kingdoms will fall. This is the age of the Vikings.

joi, 29 octombrie 2020

New Krita 4.4.1 released.

Today, 29.10.2020, version 4.4.1 of the Krita drawing and animation program was launched.
You can download it and read more on the official website.
The development team comes with this useful information: Despite an extra-long beta period during which we got awesome feedback from our community, 4.4.0 was released with several regressions, that is, bugs that weren’t present in 4.3.0. So today we’re releasing Krita 4.4.1 with the following fixes: ... NOTE for Windows Users: Microsoft has changed the way applications signed with certificates are handled. Only Digicert certificates are automatically trusted, other certificates will only be trusted if enough people bypass smartscreen to run the signed application. If you see the “Windows protected your PC” screen, press “More Info”, then select “Run anyway”. The more people do this, the earlier Microsofts machine learning algorithm will learn Krita is perfectly fine.

sâmbătă, 3 octombrie 2020

About Phaser Editor 2D game editor.

Today I install Phaser Editor 2D on Fedora 32, you can download it from the official website. Phaser Editor 2D is a commercial IDE to develop video-games. It is delivered as an offline product and users can run it for free (with certain limitations) or can purchase a license key to unlock all features. Phaser Editor 2D version 3, the latest, is a complete new software based on web technologies. So we created Play Phaser Editor 2D, a small service to allow Phaser Editor 2D license owners, to run the editor and create small projects in the cloud. However, in the future, we will provide a different cloud service with options for storage, collaboration, publishing, integration with other services and payment. These are the Play Phaser Editor 2D available plans: Free Plan and Premium Plan About Free Plan: Running the FREE PLAN 0B/50MB of storage is used 59 days before expiration date The Premium Plan comes with these options:
  • One Year License - 30$ Valid for one year after the purchase. Phaser Editor 2D Team email support. Write to developers@phasereditor2d.com. The option to refund in the first month after the purchase.
  • Two Years License - 45$ Valid for two years after the purchase. Phaser Editor 2D Team email support. Write to developers@phasereditor2d.com. The option to refund in the first month after the purchase.
  • Lifetime License - 75$ Never expires. Phaser Editor 2D Team email support. Write to developers@phasereditor2d.com. The option to refund in the first month after the purchase.
  • Two Years Team License - 125$ 5 developers allowed. Valid for two years. Phaser Editor 2D Team email support. Write to developers@phasereditor2d.com. The option to refund in the first month after the purchase.
This is a video tutorial from official youtube channel:

sâmbătă, 5 septembrie 2020

Shadertoy: The sin math function - 002.

This is another shader example to draw a sine math function using a sine wave, see Wikipedia. I used shadertoy website and the mat sin function by time. The source code is commented for a better understanding of it.
// this size of line to paint each pixel from screen
const float size = 0.01;

void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
    // Normalized pixel coordinates (from 0 to 1)
    vec2 uv = fragCoord/iResolution.xy;
    // resize uv 
    uv = uv  * 2.0;
    // translate normalized pixel coordinates uv from [0,1] to [-1, 1] with 
    uv = (uv - 1.0);

    // get uv.x aspect ratio
    uv.x *= iResolution.x / iResolution.y;
  
    // get simple sine 
    //float t = sin(uv.x);

    // get sine * 3 with same size uv will zoom the sine graphic
    // see also https://en.wikipedia.org/wiki/Sine_wave
    float t = sin(uv.x * 3.0);
    
 // select domain area of sine and drwa yellow color 
    // else put an blue color on rest
    if (uv.y >= t - size && uv.y <= t + size) {
        // draw sine
     fragColor = vec4(1.0,1.0,0.0,1.0);
    } else {
        // draw background
        fragColor = vec4(0.0,0.0,1.0,1.0);
    }
}
The result of this shader is this:

miercuri, 2 septembrie 2020

NVIDIA Developer channel and Blender 3D.

The NVIDIA Developer youtube channel comes with this great intro for Blender3D software and RTX features.
Blender is an open-source 3D software package that comes with the Cycles Renderer. Cycles is already a GPU enabled path-tracer, now super-charged with the latest generation of RTX GPUs.
Furthering the rendering speed, RTX AI features such as the Optix Denoiser infers rendering results for a truly interactive ray tracing experience.
To try it yourself and learn more about NVIDIA RTX accelerated denoising inside of the Blender viewport, visit https://www.blender.org/download/rele...