From 2425d798cdb928df979ee11e55c1a98f19f06125 Mon Sep 17 00:00:00 2001 From: Omar El Sheikh Date: Sat, 20 Aug 2022 10:01:46 -0700 Subject: Octahedral Normal Support for Sprite and Soft Body Properly encode the normal and tangent vectors with octahedral compression --- scene/3d/soft_dynamic_body_3d.cpp | 6 +++--- scene/3d/sprite_3d.cpp | 31 +++++++++++++------------------ 2 files changed, 16 insertions(+), 21 deletions(-) (limited to 'scene/3d') diff --git a/scene/3d/soft_dynamic_body_3d.cpp b/scene/3d/soft_dynamic_body_3d.cpp index 15f050defb..c9eafc77e0 100644 --- a/scene/3d/soft_dynamic_body_3d.cpp +++ b/scene/3d/soft_dynamic_body_3d.cpp @@ -88,10 +88,10 @@ void SoftDynamicBodyRenderingServerHandler::set_normal(int p_vertex_id, const vo memcpy(&n, p_vector3, sizeof(Vector3)); n *= Vector3(0.5, 0.5, 0.5); n += Vector3(0.5, 0.5, 0.5); + Vector2 res = n.octahedron_encode(); uint32_t value = 0; - value |= CLAMP(int(n.x * 1023.0), 0, 1023); - value |= CLAMP(int(n.y * 1023.0), 0, 1023) << 10; - value |= CLAMP(int(n.z * 1023.0), 0, 1023) << 20; + value |= (uint16_t)CLAMP(res.x * 65535, 0, 65535); + value |= (uint16_t)CLAMP(res.y * 65535, 0, 65535) << 16; memcpy(&write_buffer[p_vertex_id * stride + offset_normal], &value, sizeof(uint32_t)); } diff --git a/scene/3d/sprite_3d.cpp b/scene/3d/sprite_3d.cpp index ef2b9e1ce5..42ed502e18 100644 --- a/scene/3d/sprite_3d.cpp +++ b/scene/3d/sprite_3d.cpp @@ -562,23 +562,21 @@ void Sprite3D::_draw() { { Vector3 n = normal * Vector3(0.5, 0.5, 0.5) + Vector3(0.5, 0.5, 0.5); + Vector2 res = n.octahedron_encode(); uint32_t value = 0; - value |= CLAMP(int(n.x * 1023.0), 0, 1023); - value |= CLAMP(int(n.y * 1023.0), 0, 1023) << 10; - value |= CLAMP(int(n.z * 1023.0), 0, 1023) << 20; + value |= (uint16_t)CLAMP(res.x * 65535, 0, 65535); + value |= (uint16_t)CLAMP(res.y * 65535, 0, 65535) << 16; v_normal = value; } uint32_t v_tangent; { Plane t = tangent; + Vector2 res = t.normal.octahedron_tangent_encode(t.d); uint32_t value = 0; - value |= CLAMP(int((t.normal.x * 0.5 + 0.5) * 1023.0), 0, 1023); - value |= CLAMP(int((t.normal.y * 0.5 + 0.5) * 1023.0), 0, 1023) << 10; - value |= CLAMP(int((t.normal.z * 0.5 + 0.5) * 1023.0), 0, 1023) << 20; - if (t.d > 0) { - value |= 3UL << 30; - } + value |= (uint16_t)CLAMP(res.x * 65535, 0, 65535); + value |= (uint16_t)CLAMP(res.y * 65535, 0, 65535) << 16; + v_tangent = value; } @@ -929,23 +927,20 @@ void AnimatedSprite3D::_draw() { { Vector3 n = normal * Vector3(0.5, 0.5, 0.5) + Vector3(0.5, 0.5, 0.5); + Vector2 res = n.octahedron_encode(); uint32_t value = 0; - value |= CLAMP(int(n.x * 1023.0), 0, 1023); - value |= CLAMP(int(n.y * 1023.0), 0, 1023) << 10; - value |= CLAMP(int(n.z * 1023.0), 0, 1023) << 20; + value |= (uint16_t)CLAMP(res.x * 65535, 0, 65535); + value |= (uint16_t)CLAMP(res.y * 65535, 0, 65535) << 16; v_normal = value; } uint32_t v_tangent; { Plane t = tangent; + Vector2 res = t.normal.octahedron_tangent_encode(t.d); uint32_t value = 0; - value |= CLAMP(int((t.normal.x * 0.5 + 0.5) * 1023.0), 0, 1023); - value |= CLAMP(int((t.normal.y * 0.5 + 0.5) * 1023.0), 0, 1023) << 10; - value |= CLAMP(int((t.normal.z * 0.5 + 0.5) * 1023.0), 0, 1023) << 20; - if (t.d > 0) { - value |= 3UL << 30; - } + value |= (uint16_t)CLAMP(res.x * 65535, 0, 65535); + value |= (uint16_t)CLAMP(res.y * 65535, 0, 65535) << 16; v_tangent = value; } -- cgit v1.2.3