dondragmer

Buffer<uint> Input;
RWBuffer<uint> Output;

//returns the index that this value should be moved to to sort the array
uint CuteSort(uint value, uint laneIndex)
{
    uint smallerValuesMask = 0;
    uint equalValuesMask = ~0;
    
    //don't need to test every bit if your value is constrained to a smaller range

vurtun

API Design: Builder APIs (October-2020)

Some time has past (three years!) since I last wrote about API specifically about coroutines style APIs so I thought why not write another one about a different API type I encounter relatively often. The builder API.

Now first let me take a step back and put this into 20,000 feet view on where builder APIs are located in the grant scheme. In general everything in computing is separated into input, processing and finally output. In its most basic form I am currently typing on my keyboard. All pressed keys are processed from the OS up to the browser I am writing this in and finally rendered and displayed on the screen as output. Of course this example is very user centric

dsheiko

#! /bin/bash
version=`git diff HEAD^..HEAD -- "$(git rev-parse --show-toplevel)"/package.json | grep -m 1 '^\+.*version' | sed -s 's/[^A-Z0-9\.\-]//g'`

if [[ ! $version =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)(\-[A-Z]+\.[0-9]+)?$ ]]; then
    echo -e "Skip tag: invalid version '$version'"
    exit 1
fi

git tag -a "v$version" -m "`git log -1 --format=%s`"
echo "Created a new tag, v$version"

FreyaHolmer

using UnityEngine;

[RequireComponent( typeof(Camera) )]
public class FlyCamera : MonoBehaviour {
	public float acceleration = 50; // how fast you accelerate
	public float accSprintMultiplier = 4; // how much faster you go when "sprinting"
	public float lookSensitivity = 1; // mouse look sensitivity
	public float dampingCoefficient = 5; // how quickly you break to a halt after you stop your input
	public bool focusOnEnable = true; // whether or not to focus and lock cursor immediately on enable

jmpinit

# https://towardsdatascience.com/blender-2-8-grease-pencil-scripting-and-generative-art-cbbfd3967590

import bpy
import math
import numpy as np

def get_grease_pencil(gpencil_obj_name='GPencil') -> bpy.types.GreasePencil:
    """
    Return the grease-pencil object with the given name. Initialize one if not already present.
    :param gpencil_obj_name: name/key of the grease pencil object in the scene

silvesthu

GPU Optimization for GameDev

Graphics Pipeline / GPU Architecture Overview

• 2011 - A trip through the Graphics Pipeline 2011
• 2015 - Life of a triangle - NVIDIA's logical pipeline
• 2015 - Render Hell 2.0
• 2016 - How bad are small triangles on GPU and why?
• 2017 - GPU Performance for Game Artists
• 2019 - Understanding the anatomy of GPUs using Pokémon
• 2020 - GPU ARCHITECTURE RESOURCES

5agado

from math import sin, cos

def rotate_stroke(stroke, angle, axis='z'):
    # Define rotation matrix based on axis
    if axis.lower() == 'x':
        transform_matrix = np.array([[1, 0, 0],
                                     [0, cos(angle), -sin(angle)],
                                     [0, sin(angle), cos(angle)]])
    elif axis.lower() == 'y':
        transform_matrix = np.array([[cos(angle), 0, -sin(angle)],

5agado

def draw_line(gp_frame, p0: tuple, p1: tuple):
    # Init new stroke
    gp_stroke = gp_frame.strokes.new()
    gp_stroke.display_mode = '3DSPACE'  # allows for editing

    # Define stroke geometry
    gp_stroke.points.add(count=2)
    gp_stroke.points[0].co = p0
    gp_stroke.points[1].co = p1
    return gp_stroke

5agado

def draw_circle(gp_frame, center: tuple, radius: float, segments: int):
    # Init new stroke
    gp_stroke = gp_frame.strokes.new()
    gp_stroke.display_mode = '3DSPACE'  # allows for editing
    gp_stroke.draw_cyclic = True        # closes the stroke

    # Define stroke geometry
    angle = 2*math.pi/segments  # angle in radians
    gp_stroke.points.add(count=segments)
    for i in range(segments):

5agado

import bpy

NUM_FRAMES = 30
FRAMES_SPACING = 1  # distance between frames
bpy.context.scene.frame_start = 0
bpy.context.scene.frame_end = NUM_FRAMES*FRAMES_SPACING

for frame in range(NUM_FRAMES):
    gp_frame = gp_layer.frames.new(frame*FRAMES_SPACING)
    # do something with your frame