written in Vex / Houdini. inspired by Serjan Burlaks work

simple animation of Cos and Sin…. simple Vex program in Houdini and rendered with realtime engine Eevee (blender)

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# Tag: math

# fun with Math / pi

# sun flares simulation

# Sierpinski Gasket

# openCL tests in Houdini

# NNody simulation with openCL

written in Vex / Houdini. inspired by Serjan Burlaks work

simple animation of Cos and Sin…. simple Vex program in Houdini and rendered with realtime engine Eevee (blender)

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first adept to simulate sun flares in houdin based on nbody model

playing with the Sierpinski Gasket in houdini, coding exereise. Houdini Vex is very fast and its easy convert it from my c++ code. the fun Part, i get openGL feedback in realtime with need to code in OpenGL.

float resX = 600;

float resY = 600;

float deltaD = 0.5;

int numVert = 3;

float pi = 3.1415922653;

float rotOffset = pi / 6.0;

vector pos= {0,0,0};float cx = (resX/2.0)*cos((2*pi/numVert) + rotOffset) + (resX /2);

float cy = (resY/2.0)*sin((2*pi/numVert) + rotOffset) + (resY /2);int iter = chf(“iteration”);

for(int i=0; i<(iter+15); i++) { int num = int(((rand(i)*32767) % numVert) +1); float xVert = (resX/2) * cos((2*pi*num / numVert) + rotOffset) + (resX/2); float yVert = (resY/2) * sin((2*pi*num / numVert) + rotOffset) + (resY/2); cx += deltaD * (xVert – cx); cy += deltaD * (yVert – cy); if(i>15) {

pos.x = cx;

pos.y = cy;

addpoint( 0, pos );

}

}

a simple sin and PI function exereise.

120.000 stars simulated in houdini with openCL. the graphic card on my macbook RX420 GPU is about 25 faster then NBody in C/Vex on the I7 CPU

realtime nbody on my macbook with 40.000 stars