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~ | Better portals

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TheRedShip
2025-01-07 17:02:19 +01:00
parent 3515810c8b
commit 9df8b78d6d
7 changed files with 46 additions and 8 deletions
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17
shaders/compute.glsl
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@ -5,6 +5,8 @@ layout(binding = 0, rgba32f) uniform image2D output_image;
layout(binding = 1, rgba32f) uniform image2D accumulation_image;
struct GPUObject {
mat4 transform;
vec3 position; // 12 + 4
vec3 normal; // 12 + 4
@ -12,6 +14,7 @@ struct GPUObject {
vec3 vertex1; // 12 + 4
vec3 vertex2; // 12 + 4
float radius; // 4
int mat_index; // 4
@ -71,13 +74,17 @@ Ray portalRay(Ray ray, hitInfo hit)
portal_1 = objects[hit.obj_index];
portal_2 = objects[int(portal_1.radius)]; // saving memory radius = portal_index
vec3 portal_2_normal = normalize(cross(portal_2.vertex1, portal_2.vertex2));
portal_2_normal *= sign(dot(ray.direction, portal_2_normal));
vec3 portal_2_normal = portal_2.normal * sign(dot(ray.direction, portal_2.normal));
relative = portal_2.position - portal_1.position;
relative = hit.position - portal_1.position;
ray.origin = hit.position + relative + portal_2_normal * 0.01;
ray.direction = normalize(ray.direction + portal_2_normal * 0.01);
ray.origin = portal_2.position + mat3(portal_2.transform) * relative;
ray.origin += portal_2_normal * 0.01;
if (dot(ray.direction, portal_2_normal) < 0.0)
ray.direction = reflect(ray.direction, portal_2_normal);
ray.direction = normalize(mat3(portal_2.transform) * ray.direction);
return (ray);
}