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+ | Bvh and portals

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TheRedShip
2025-01-19 01:10:01 +01:00
parent 08c0ce1d83
commit c5783a15f0
3 changed files with 28 additions and 18 deletions
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4
imgui.ini
View File

@ -19,6 +19,6 @@ Pos=1642,668
Size=260,143
[Window][Debug BVH]
Pos=60,60
Size=159,127
Pos=1639,663
Size=274,205

7
scenes/dragon.rt
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@ -1,7 +1,7 @@
CAM 1.93858 0.961594 -0.0117614 -25 180 0.05 2.1639994842342176 29.263 5
CAM 1.82501 0.45 -0.0162945 -10 180.6 0.02 2.164 30 5
MAT 255 255 255 0.0 1. 0.5 // white 0
MAT 255 255 255 0.0 1. 0.3 // white 0
MAT 255 10 10 0.0 0.0 0.0 // red 1
MAT 30 30 30 0.0 0.0 0.0 // gray 2
@ -23,7 +23,8 @@ pl 0 -2 0 0 1 0 2 // floor
qu -1 1.999 -1 2 0 0 0 0 2 6
# sp 1 1 0 0.1 6
OBJ obj/Dragon_80K.obj
po -1.99 -0.5 -0.5 0 1 0 0 0 1 1 4
po -0.5 -0.5 -1.99 0 1 0 1 0 0 0 4

35
shaders/trace.glsl
View File

@ -31,8 +31,8 @@ hitInfo traceScene(Ray ray)
{
hitInfo hit;
for (int p = 0; p < 25; p++) //portals
{
// for (int p = 0; p < 25; p++) //portals
// {
hit.t = 1e30;
hit.obj_index = -1;
@ -51,16 +51,17 @@ hitInfo traceScene(Ray ray)
hit.normal = temp_hit.normal;
}
}
if (hit.obj_index == -1 || objects[hit.obj_index].type != 5)
break ;
ray = portalRay(ray, hit);
}
// if (hit.obj_index == -1 || objects[hit.obj_index].type != 5)
// break ;
// ray = portalRay(ray, hit);
// }
return (hit);
}
hitInfo traceBVH(Ray ray)
{
hitInfo temp_hit;
hitInfo hit;
hit.t = 1e30;
@ -76,14 +77,12 @@ hitInfo traceBVH(Ray ray)
GPUBvh node = bvh[current_index];
hitInfo temp_hit;
if (node.is_leaf != 0)
{
for (int i = 0; i < node.primitive_count; i++)
{
GPUTriangle obj = triangles[node.first_primitive + i];
hitInfo temp_hit;
if (intersectTriangle(ray, obj, temp_hit) && temp_hit.t < hit.t)
{
hit.t = temp_hit.t;
@ -127,10 +126,20 @@ hitInfo traceBVH(Ray ray)
hitInfo traceRay(Ray ray)
{
hitInfo hitBVH = traceBVH(ray);
hitInfo hitScene = traceScene(ray);
hitInfo hitBVH;
hitInfo hitScene;
hitInfo hit;
if (hitBVH.t < hitScene.t)
return (hitBVH);
return (hitScene);
for (int i = 0; i < 10; i++) // portal ray
{
hitBVH = traceBVH(ray);
hitScene = traceScene(ray);
hit = hitBVH.t < hitScene.t ? hitBVH : hitScene;
if (hit.obj_index == -1 || objects[hit.obj_index].type != 5)
break ;
ray = portalRay(ray, hit);
}
return (hit);
}