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TheRedShip
2025-01-26 18:09:07 +01:00
parent 9798a9942b
commit 07fd5870bf
2 changed files with 14 additions and 28 deletions
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40
shaders/intersect.glsl
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@ -30,7 +30,7 @@ bool intersectPlane(Ray ray, GPUObject obj, out hitInfo hit)
float t = dot(obj.position - ray.origin, obj.normal) / d;
bool valid = t >= 0.0 && d != 0.0;
if (!valid) return (false);
// if (!valid) return (false);
hit.t = t;
hit.position = ray.origin + ray.direction * t;
@ -66,32 +66,6 @@ bool intersectQuad(Ray ray, GPUObject obj, out hitInfo hit)
return (inside);
}
bool intersectTriangle(Ray ray, GPUObject obj, out hitInfo hit)
{
vec3 vertex1 = obj.vertex1 - obj.position;
vec3 vertex2 = obj.vertex2 - obj.position;
vec3 pvec = cross(ray.direction, vertex2);
float det = dot(vertex1, pvec);
vec3 tvec = ray.origin - obj.position;
float invDet = 1.0 / det;
float u = dot(tvec, pvec) * invDet;
vec3 qvec = cross(tvec, vertex1);
float v = dot(ray.direction, qvec) * invDet;
float t = dot(vertex2, qvec) * invDet;
bool valid = abs(det) > 1e-8 &&
u >= 0.0 && u <= 1.0 &&
v >= 0.0 && (u + v) <= 1.0 &&
t > 0.0;
hit.t = t;
hit.position = ray.origin + ray.direction * t;
hit.normal = obj.normal * sign(-dot(ray.direction, obj.normal));
return (valid);
}
bool intersectTriangle(Ray ray, GPUTriangle obj, out hitInfo hit)
{
@ -120,6 +94,18 @@ bool intersectTriangle(Ray ray, GPUTriangle obj, out hitInfo hit)
return (valid);
}
bool intersectTriangle(Ray ray, GPUObject obj, out hitInfo hit)
{
GPUTriangle tri;
tri.position = obj.position;
tri.normal = obj.normal;
tri.vertex1 = obj.vertex1;
tri.vertex2 = obj.vertex2;
return (intersectTriangle(ray, tri, hit));
}
bool intersectCube(Ray ray, GPUObject obj, out hitInfo hit)
{
vec3 halfSize = obj.vertex1 * 0.5;

2
shaders/scatter.glsl
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@ -61,7 +61,7 @@ Ray transparencyRay(hitInfo hit, Ray ray, GPUMaterial mat, inout uint rng_state)
float eta = mat.refraction;
vec3 refractedDir = refract(ray.direction, hit.normal, 1.0 / eta);
float kr = fresnel(ray.direction, hit.normal, eta);
// float kr = fresnel(ray.direction, hit.normal, eta);
float randVal = randomValue(rng_state);
if (randVal < mat.metallic || length(refractedDir) == 0.0)