Crizomb/RayMarchingGo
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2x Perf, because wtf *Material is useless, Material is an interface so it's already a ref

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This commit is contained in:
Crizomb 2025-09-28 03:08:27 +02:00
parent a6a3785a9f
commit 0ded879dce
4 changed files with 26 additions and 25 deletions
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6
src/material.go
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@ -70,14 +70,14 @@ func MixMat(mat1 MaterialBrut, mat2 MaterialBrut, t float64, p Vector3) Material
} }
type MixedMaterial struct { type MixedMaterial struct {
mat1 *Material mat1 Material
mat2 *Material mat2 Material
t float64 t float64
p Vector3 p Vector3
} }
func (mixedMat MixedMaterial) GetMaterialBrut() MaterialBrut { func (mixedMat MixedMaterial) GetMaterialBrut() MaterialBrut {
return MixMat((*mixedMat.mat1).GetMaterialBrut(), (*mixedMat.mat2).GetMaterialBrut(), mixedMat.t, mixedMat.p) return MixMat((mixedMat.mat1).GetMaterialBrut(), (mixedMat.mat2).GetMaterialBrut(), mixedMat.t, mixedMat.p)
} }
func DefaultMaterial(diffuseColor Color) MaterialBrut { func DefaultMaterial(diffuseColor Color) MaterialBrut {

12
src/primitives_sdf.go
View file

@ -6,8 +6,8 @@ type Sphere struct {
material Material material Material
} }
func (s Sphere) Distance(p Vector3) (float64, *Material) { func (s Sphere) Distance(p Vector3) (float64, Material) {
return p.Length() - s.radius, &s.material return p.Length() - s.radius, s.material
} }
// Box // Box
@ -16,9 +16,9 @@ type Box struct {
material Material material Material
} }
func (s Box) Distance(p Vector3) (float64, *Material) { func (s Box) Distance(p Vector3) (float64, Material) {
q := p.Abs().Sub(s.dimensions) q := p.Abs().Sub(s.dimensions)
return q.Max(0.0).Length() + min(max(q.X, max(q.Y, q.Z)), 0.0), &s.material return q.Max(0.0).Length() + min(max(q.X, max(q.Y, q.Z)), 0.0), s.material
} }
// Plane // Plane
@ -27,6 +27,6 @@ type Plane struct {
material Material material Material
} }
func (s Plane) Distance(p Vector3) (float64, *Material) { func (s Plane) Distance(p Vector3) (float64, Material) {
return p.Dot(s.normal), &s.material return p.Dot(s.normal), s.material
} }

3
src/ray_marching.go
View file

@ -50,7 +50,8 @@ func rayMarch(origin Vector3, direction Vector3) (bool, Vector3) {
dist, mat := scene.Distance(p) dist, mat := scene.Distance(p)
if dist < EPS { if dist < EPS {
normal := Gradient(scene, p, EPS).Normalized() normal := Gradient(scene, p, EPS).Normalized()
return true, phongShading(p, normal, *mat).Scale(max(shadow(p), 0.3)) return true, phongShading(p, normal, mat).Scale(max(shadow(p), 0.3))
// return true, phongShading(p, normal, *mat)
} }
if dist > MAX_DIST { if dist > MAX_DIST {
break break

30
src/sdf.go
View file

@ -5,7 +5,7 @@ import (
) )
type SDF interface { type SDF interface {
Distance(Vector3) (float64, *Material) Distance(Vector3) (float64, Material)
} }
func DistanceOnly(sdf SDF, p Vector3) float64 { func DistanceOnly(sdf SDF, p Vector3) float64 {
@ -27,7 +27,7 @@ type TranslatedSDF struct {
translate Vector3 translate Vector3
} }
func (s TranslatedSDF) Distance(p Vector3) (float64, *Material) { func (s TranslatedSDF) Distance(p Vector3) (float64, Material) {
return s.primitive.Distance(p.Sub(s.translate)) return s.primitive.Distance(p.Sub(s.translate))
} }
@ -37,7 +37,7 @@ type RotatedSDF struct {
angle float64 angle float64
} }
func (s RotatedSDF) Distance(p Vector3) (float64, *Material) { func (s RotatedSDF) Distance(p Vector3) (float64, Material) {
rotated_p := Rotate(p, s.rotVector, s.angle) rotated_p := Rotate(p, s.rotVector, s.angle)
return s.primitive.Distance(rotated_p) return s.primitive.Distance(rotated_p)
} }
@ -47,7 +47,7 @@ type ScaledSDF struct {
scale float64 scale float64
} }
func (s ScaledSDF) Distance(p Vector3) (float64, *Material) { func (s ScaledSDF) Distance(p Vector3) (float64, Material) {
dist, color := s.primitive.Distance(p.Scale(1 / s.scale)) dist, color := s.primitive.Distance(p.Scale(1 / s.scale))
return dist * s.scale, color return dist * s.scale, color
} }
@ -57,7 +57,7 @@ type RepeatSDF struct {
cellSize Vector3 cellSize Vector3
} }
func (s RepeatSDF) Distance(p Vector3) (float64, *Material) { func (s RepeatSDF) Distance(p Vector3) (float64, Material) {
x, y, z := p.Unpack() x, y, z := p.Unpack()
sx, sy, sz := s.cellSize.Unpack() sx, sy, sz := s.cellSize.Unpack()
round := math.RoundToEven round := math.RoundToEven
@ -70,7 +70,7 @@ type UnionSDF struct {
primitive2 SDF primitive2 SDF
} }
func (s UnionSDF) Distance(p Vector3) (float64, *Material) { func (s UnionSDF) Distance(p Vector3) (float64, Material) {
d1, color1 := s.primitive1.Distance(p) d1, color1 := s.primitive1.Distance(p)
d2, color2 := s.primitive2.Distance(p) d2, color2 := s.primitive2.Distance(p)
d := min(d1, d2) d := min(d1, d2)
@ -87,7 +87,7 @@ type SubstractionSDF struct {
primitive2 SDF primitive2 SDF
} }
func (s SubstractionSDF) Distance(p Vector3) (float64, *Material) { func (s SubstractionSDF) Distance(p Vector3) (float64, Material) {
d1, color1 := s.primitive1.Distance(p) d1, color1 := s.primitive1.Distance(p)
d2, _ := s.primitive2.Distance(p) d2, _ := s.primitive2.Distance(p)
@ -100,14 +100,14 @@ type IntersectionSDF struct {
primitive2 SDF primitive2 SDF
} }
func (s IntersectionSDF) Distance(p Vector3) (float64, *Material) { func (s IntersectionSDF) Distance(p Vector3) (float64, Material) {
d1, mat1 := s.primitive1.Distance(p) d1, mat1 := s.primitive1.Distance(p)
d2, mat2 := s.primitive2.Distance(p) d2, mat2 := s.primitive2.Distance(p)
d := max(d1, d2) d := max(d1, d2)
var mat Material = MixedMaterial{mat1, mat2, 0.5, p} var mat Material = MixedMaterial{mat1, mat2, 0.5, p}
return d, &mat return d, mat
} }
type SmoothUnionSDF struct { type SmoothUnionSDF struct {
@ -116,7 +116,7 @@ type SmoothUnionSDF struct {
k float64 k float64
} }
func (s SmoothUnionSDF) Distance(p Vector3) (float64, *Material) { func (s SmoothUnionSDF) Distance(p Vector3) (float64, Material) {
k := 4 * s.k k := 4 * s.k
d1, mat1 := s.primitive1.Distance(p) d1, mat1 := s.primitive1.Distance(p)
d2, mat2 := s.primitive2.Distance(p) d2, mat2 := s.primitive2.Distance(p)
@ -124,7 +124,7 @@ func (s SmoothUnionSDF) Distance(p Vector3) (float64, *Material) {
d := min(d1, d2) - h*h*0.25/k d := min(d1, d2) - h*h*0.25/k
t := SmoothStep(d2-d1, -k, k) t := SmoothStep(d2-d1, -k, k)
var mat Material = MixedMaterial{mat2, mat1, t, p} var mat Material = MixedMaterial{mat2, mat1, t, p}
return d, &mat return d, mat
} }
type SmoothSubstractionSDF struct { type SmoothSubstractionSDF struct {
@ -133,7 +133,7 @@ type SmoothSubstractionSDF struct {
k float64 k float64
} }
func (s SmoothSubstractionSDF) Distance(p Vector3) (float64, *Material) { func (s SmoothSubstractionSDF) Distance(p Vector3) (float64, Material) {
k := 4 * s.k k := 4 * s.k
d1, mat1 := s.primitive1.Distance(p) d1, mat1 := s.primitive1.Distance(p)
d2, mat2 := s.primitive2.Distance(p) d2, mat2 := s.primitive2.Distance(p)
@ -141,7 +141,7 @@ func (s SmoothSubstractionSDF) Distance(p Vector3) (float64, *Material) {
d := max(d1, -d2) + h*h*0.25/k d := max(d1, -d2) + h*h*0.25/k
t := SmoothStep(d1-d2, -k, k) t := SmoothStep(d1-d2, -k, k)
var mat Material = MixedMaterial{mat1, mat2, t, p} var mat Material = MixedMaterial{mat1, mat2, t, p}
return d, &mat return d, mat
} }
type SmoothIntersectionSDF struct { type SmoothIntersectionSDF struct {
@ -150,7 +150,7 @@ type SmoothIntersectionSDF struct {
k float64 k float64
} }
func (s SmoothIntersectionSDF) Distance(p Vector3) (float64, *Material) { func (s SmoothIntersectionSDF) Distance(p Vector3) (float64, Material) {
k := 4 * s.k k := 4 * s.k
d1, mat1 := s.primitive1.Distance(p) d1, mat1 := s.primitive1.Distance(p)
d2, mat2 := s.primitive2.Distance(p) d2, mat2 := s.primitive2.Distance(p)
@ -158,5 +158,5 @@ func (s SmoothIntersectionSDF) Distance(p Vector3) (float64, *Material) {
d := max(d1, d2) + h*h*0.25/k d := max(d1, d2) + h*h*0.25/k
t := SmoothStep(d2-d1, -k, k) t := SmoothStep(d2-d1, -k, k)
var mat Material = MixedMaterial{mat1, mat2, t, p} var mat Material = MixedMaterial{mat1, mat2, t, p}
return d, &mat return d, mat
} }