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+ | Triangle optimization

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TheRedShip
2025-02-01 16:33:40 +01:00
parent 0b930fe394
commit 558d1205a7
5 changed files with 35 additions and 31 deletions
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32
shaders/trace.glsl
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@ -43,7 +43,6 @@ hitInfo traceScene(Ray ray)
if (intersect(ray, obj, temp_hit) && temp_hit.t < hit.t)
{
hit.t = temp_hit.t;
hit.last_t = temp_hit.last_t;
hit.obj_index = i;
hit.obj_type = obj.type;
hit.mat_index = obj.mat_index;
@ -84,11 +83,10 @@ hitInfo traceBVH(Ray ray, GPUBvhData bvh_data)
hit.u = temp_hit.u;
hit.v = temp_hit.v;
hit.t = temp_hit.t;
hit.last_t = temp_hit.last_t;
hit.obj_index = bvh_data.triangle_start_index + node.index + i;
hit.mat_index = obj.mat_index;
hit.position = temp_hit.position;
hit.normal = temp_hit.normal;
// hit.mat_index = obj.mat_index;
// hit.position = temp_hit.position;
// hit.normal = temp_hit.normal;
}
}
}
@ -143,22 +141,28 @@ hitInfo traverseBVHs(Ray ray)
hitInfo temp_hit = traceBVH(transformedRay, BvhData[i]);
temp_hit.t = temp_hit.t / bvh_data.scale;
if (temp_hit.t < hit.t)
float transformed_t = temp_hit.t / bvh_data.scale;
if (transformed_t < hit.t)
{
GPUTriangle triangle = triangles[temp_hit.obj_index];
hit.u = temp_hit.u;
hit.v = temp_hit.v;
hit.t = temp_hit.t;
hit.last_t = temp_hit.last_t / bvh_data.scale;
hit.t = transformed_t;
hit.obj_index = temp_hit.obj_index;
hit.mat_index = temp_hit.mat_index;
hit.obj_type = 3;
hit.position = inverseTransformMatrix * temp_hit.position + bvh_data.offset;
hit.normal = normalize(inverseTransformMatrix * temp_hit.normal);
hit.mat_index = triangle.mat_index;
vec3 position = transformedRay.origin + transformedRay.direction * temp_hit.t;
hit.position = inverseTransformMatrix * position + bvh_data.offset;
vec3 based_normal = triangle.normal; // * sign(-dot(transformedRay.direction, triangle.normal));
hit.normal = normalize(inverseTransformMatrix * based_normal);
}
}
hit.obj_type = 3;
return (hit);
}