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~ | Vertex normal obj handling

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TheRedShip
2025-02-24 20:19:06 +01:00
parent d3229df002
commit 16c90128bf
11 changed files with 108 additions and 50 deletions
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13
shaders/debug.glsl
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@ -55,7 +55,10 @@ struct GPUTriangle
vec3 position;
vec3 vertex1;
vec3 vertex2;
vec3 normal;
vec3 normal_vertex1;
vec3 normal_vertex2;
vec3 normal_vertex3;
vec2 texture_vertex1;
vec2 texture_vertex2;
@ -189,7 +192,8 @@ hitInfo traceBVH(Ray ray, GPUBvhData bvh_data, inout Stats stats)
{
hit.t = temp_hit.t;
hit.obj_index = bvh_data.triangle_start_index + node.index + i;
hit.normal = temp_hit.normal;
hit.u = temp_hit.u;
hit.v = temp_hit.v;
}
}
}
@ -260,8 +264,9 @@ hitInfo traverseBVHs(Ray ray, inout Stats stats)
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);
vec3 normal = normalize(triangle.normal_vertex1 * (1.0 - hit.u - hit.v) + triangle.normal_vertex2 * hit.u + triangle.normal_vertex3 * hit.v);
vec3 directed_normal = normal * sign(-dot(transformedRay.direction, normal));
hit.normal = normalize(inverseTransformMatrix * directed_normal);
}
}