- Visual Studio Code
// Ray Marching
float4 res = float4(.0, .0, .0, .0);
float t = .0;
for (int step_march = 0; step_march < 100; ++step_march)
{
float3 p = ro + t * rd;
float h = CustomExpression0(Parameters,p);
if(h < .001)
{
float2 eps = float2(.0001, .0);
float3 N = normalize(float3(
CustomExpression0(Parameters, p + eps.xyy) - CustomExpression0(Parameters, p - eps.xyy),
CustomExpression0(Parameters, p + eps.yxy) - CustomExpression0(Parameters, p - eps.yxy),
CustomExpression0(Parameters, p + eps.yyx) - CustomExpression0(Parameters, p - eps.yyx)
));
res = float4(N, 1.f);
break;
}
t += h;
}
return res;
// Map
struct Funcs
{
float smin(float a, float b, float k)
{
float h = max(k - abs(a-b), .0) / k;
return min(a, b) - h * h * k * (1./4.);
}
};
Funcs f;
float iTime = View.GameTime;
float d1 = length(p - float3(30. * cos(iTime), .0, .0)) - 40.;
float an = 2. * sin(iTime);
float2x2 rot = float2x2(
cos(an), -sin(an),
sin(an), cos(an)
);
float3 q = p;
q.yz = mul(rot, q.yz);
float d2 = length(float2(q.y, length(q.xz) - 80.)) - 20.;
float d = f.smin(d1, d2, .5);
return d;
참고 자료
온라인 강의 - 자신의 일정에 맞춰 뭐든지 배워 보세요 | Udemy
Udemy는 155,000개 이상의 강의와 4천만명 이상의 수강생이 있는 온라인 학습 및 교수 마켓플레이스입니다. 프로그래밍, 마케팅, 데이터 과학 및 그 밖의 분야에 대해 배워 보세요.
www.udemy.com
https://marketplace.visualstudio.com/items?itemName=TimGJones.hlsltools
HLSL Tools - Visual Studio Marketplace
Extension for Visual Studio Code - Rich HLSL language support for Visual Studio Code
marketplace.visualstudio.com
3D 레이 추적
3D Ray tracing exercise | Computer programming | Khan Academy
www.khanacademy.org
Ray Tracing in One Weekend
Ray Tracing in One Weekend Series
Ray Tracing in One Weekend—The Book Series Getting the Books The Ray Tracing in One Weekend series of books are now available to the public for free online. They are now released under the CC0 license. This means that they are as close to public domain a
raytracing.github.io
Transformation
https://learnopengl.com/Getting-started/Transformations
LearnOpenGL - Transformations
Transformations Getting-started/Transformations We now know how to create objects, color them and/or give them a detailed appearance using textures, but they're still not that interesting since they're all static objects. We could try and make them move by
learnopengl.com
Ray Marching
https://www.shadertoy.com/view/4dKyRz
Shadertoy
www.shadertoy.com
Inigo Quilez
Articles on computer graphics, math and art
iquilezles.org
https://es.wikipedia.org/wiki/Matriz_de_rotaci%C3%B3n
Matriz de rotación - Wikipedia, la enciclopedia libre
De Wikipedia, la enciclopedia libre Ir a la navegación Ir a la búsqueda En álgebra lineal, una matriz de rotación es la matriz que representa una rotación en el espacio euclídeo. Por ejemplo, la matriz R ( θ ) = [ cos θ − sin θ sin
es.wikipedia.org
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