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-rw-r--r--intern/cycles/util/util_projection.h216
1 files changed, 128 insertions, 88 deletions
diff --git a/intern/cycles/util/util_projection.h b/intern/cycles/util/util_projection.h
index d1af013ae3a..416af18b53e 100644
--- a/intern/cycles/util/util_projection.h
+++ b/intern/cycles/util/util_projection.h
@@ -24,153 +24,193 @@ CCL_NAMESPACE_BEGIN
/* 4x4 projection matrix, perspective or orthographic. */
typedef struct ProjectionTransform {
- float4 x, y, z, w; /* rows */
+ float4 x, y, z, w; /* rows */
#ifndef __KERNEL_GPU__
- ProjectionTransform()
- {
- }
-
- explicit ProjectionTransform(const Transform& tfm)
- : x(tfm.x),
- y(tfm.y),
- z(tfm.z),
- w(make_float4(0.0f, 0.0f, 0.0f, 1.0f))
- {
- }
+ ProjectionTransform()
+ {
+ }
+
+ explicit ProjectionTransform(const Transform &tfm)
+ : x(tfm.x), y(tfm.y), z(tfm.z), w(make_float4(0.0f, 0.0f, 0.0f, 1.0f))
+ {
+ }
#endif
} ProjectionTransform;
typedef struct PerspectiveMotionTransform {
- ProjectionTransform pre;
- ProjectionTransform post;
+ ProjectionTransform pre;
+ ProjectionTransform post;
} PerspectiveMotionTransform;
/* Functions */
ccl_device_inline float3 transform_perspective(const ProjectionTransform *t, const float3 a)
{
- float4 b = make_float4(a.x, a.y, a.z, 1.0f);
- float3 c = make_float3(dot(t->x, b), dot(t->y, b), dot(t->z, b));
- float w = dot(t->w, b);
+ float4 b = make_float4(a.x, a.y, a.z, 1.0f);
+ float3 c = make_float3(dot(t->x, b), dot(t->y, b), dot(t->z, b));
+ float w = dot(t->w, b);
- return (w != 0.0f)? c/w: make_float3(0.0f, 0.0f, 0.0f);
+ return (w != 0.0f) ? c / w : make_float3(0.0f, 0.0f, 0.0f);
}
-ccl_device_inline float3 transform_perspective_direction(const ProjectionTransform *t, const float3 a)
+ccl_device_inline float3 transform_perspective_direction(const ProjectionTransform *t,
+ const float3 a)
{
- float3 c = make_float3(
- a.x*t->x.x + a.y*t->x.y + a.z*t->x.z,
- a.x*t->y.x + a.y*t->y.y + a.z*t->y.z,
- a.x*t->z.x + a.y*t->z.y + a.z*t->z.z);
+ float3 c = make_float3(a.x * t->x.x + a.y * t->x.y + a.z * t->x.z,
+ a.x * t->y.x + a.y * t->y.y + a.z * t->y.z,
+ a.x * t->z.x + a.y * t->z.y + a.z * t->z.z);
- return c;
+ return c;
}
#ifndef __KERNEL_GPU__
-ccl_device_inline Transform projection_to_transform(const ProjectionTransform& a)
+ccl_device_inline Transform projection_to_transform(const ProjectionTransform &a)
{
- Transform tfm = {a.x, a.y, a.z};
- return tfm;
+ Transform tfm = {a.x, a.y, a.z};
+ return tfm;
}
-ccl_device_inline ProjectionTransform projection_transpose(const ProjectionTransform& a)
+ccl_device_inline ProjectionTransform projection_transpose(const ProjectionTransform &a)
{
- ProjectionTransform t;
-
- t.x.x = a.x.x; t.x.y = a.y.x; t.x.z = a.z.x; t.x.w = a.w.x;
- t.y.x = a.x.y; t.y.y = a.y.y; t.y.z = a.z.y; t.y.w = a.w.y;
- t.z.x = a.x.z; t.z.y = a.y.z; t.z.z = a.z.z; t.z.w = a.w.z;
- t.w.x = a.x.w; t.w.y = a.y.w; t.w.z = a.z.w; t.w.w = a.w.w;
-
- return t;
+ ProjectionTransform t;
+
+ t.x.x = a.x.x;
+ t.x.y = a.y.x;
+ t.x.z = a.z.x;
+ t.x.w = a.w.x;
+ t.y.x = a.x.y;
+ t.y.y = a.y.y;
+ t.y.z = a.z.y;
+ t.y.w = a.w.y;
+ t.z.x = a.x.z;
+ t.z.y = a.y.z;
+ t.z.z = a.z.z;
+ t.z.w = a.w.z;
+ t.w.x = a.x.w;
+ t.w.y = a.y.w;
+ t.w.z = a.z.w;
+ t.w.w = a.w.w;
+
+ return t;
}
-ProjectionTransform projection_inverse(const ProjectionTransform& a);
-
-ccl_device_inline ProjectionTransform make_projection(
- float a, float b, float c, float d,
- float e, float f, float g, float h,
- float i, float j, float k, float l,
- float m, float n, float o, float p)
+ProjectionTransform projection_inverse(const ProjectionTransform &a);
+
+ccl_device_inline ProjectionTransform make_projection(float a,
+ float b,
+ float c,
+ float d,
+ float e,
+ float f,
+ float g,
+ float h,
+ float i,
+ float j,
+ float k,
+ float l,
+ float m,
+ float n,
+ float o,
+ float p)
{
- ProjectionTransform t;
-
- t.x.x = a; t.x.y = b; t.x.z = c; t.x.w = d;
- t.y.x = e; t.y.y = f; t.y.z = g; t.y.w = h;
- t.z.x = i; t.z.y = j; t.z.z = k; t.z.w = l;
- t.w.x = m; t.w.y = n; t.w.z = o; t.w.w = p;
-
- return t;
+ ProjectionTransform t;
+
+ t.x.x = a;
+ t.x.y = b;
+ t.x.z = c;
+ t.x.w = d;
+ t.y.x = e;
+ t.y.y = f;
+ t.y.z = g;
+ t.y.w = h;
+ t.z.x = i;
+ t.z.y = j;
+ t.z.z = k;
+ t.z.w = l;
+ t.w.x = m;
+ t.w.y = n;
+ t.w.z = o;
+ t.w.w = p;
+
+ return t;
}
ccl_device_inline ProjectionTransform projection_identity()
{
- return make_projection(
- 1.0f, 0.0f, 0.0f, 0.0f,
- 0.0f, 1.0f, 0.0f, 0.0f,
- 0.0f, 0.0f, 1.0f, 0.0f,
- 0.0f, 0.0f, 0.0f, 1.0f);
+ return make_projection(1.0f,
+ 0.0f,
+ 0.0f,
+ 0.0f,
+ 0.0f,
+ 1.0f,
+ 0.0f,
+ 0.0f,
+ 0.0f,
+ 0.0f,
+ 1.0f,
+ 0.0f,
+ 0.0f,
+ 0.0f,
+ 0.0f,
+ 1.0f);
}
-ccl_device_inline ProjectionTransform operator*(const ProjectionTransform& a, const ProjectionTransform& b)
+ccl_device_inline ProjectionTransform operator*(const ProjectionTransform &a,
+ const ProjectionTransform &b)
{
- ProjectionTransform c = projection_transpose(b);
- ProjectionTransform t;
+ ProjectionTransform c = projection_transpose(b);
+ ProjectionTransform t;
- t.x = make_float4(dot(a.x, c.x), dot(a.x, c.y), dot(a.x, c.z), dot(a.x, c.w));
- t.y = make_float4(dot(a.y, c.x), dot(a.y, c.y), dot(a.y, c.z), dot(a.y, c.w));
- t.z = make_float4(dot(a.z, c.x), dot(a.z, c.y), dot(a.z, c.z), dot(a.z, c.w));
- t.w = make_float4(dot(a.w, c.x), dot(a.w, c.y), dot(a.w, c.z), dot(a.w, c.w));
+ t.x = make_float4(dot(a.x, c.x), dot(a.x, c.y), dot(a.x, c.z), dot(a.x, c.w));
+ t.y = make_float4(dot(a.y, c.x), dot(a.y, c.y), dot(a.y, c.z), dot(a.y, c.w));
+ t.z = make_float4(dot(a.z, c.x), dot(a.z, c.y), dot(a.z, c.z), dot(a.z, c.w));
+ t.w = make_float4(dot(a.w, c.x), dot(a.w, c.y), dot(a.w, c.z), dot(a.w, c.w));
- return t;
+ return t;
}
-ccl_device_inline ProjectionTransform operator*(const ProjectionTransform& a, const Transform& b)
+ccl_device_inline ProjectionTransform operator*(const ProjectionTransform &a, const Transform &b)
{
- return a * ProjectionTransform(b);
+ return a * ProjectionTransform(b);
}
-ccl_device_inline ProjectionTransform operator*(const Transform& a, const ProjectionTransform& b)
+ccl_device_inline ProjectionTransform operator*(const Transform &a, const ProjectionTransform &b)
{
- return ProjectionTransform(a) * b;
+ return ProjectionTransform(a) * b;
}
-ccl_device_inline void print_projection(const char *label, const ProjectionTransform& t)
+ccl_device_inline void print_projection(const char *label, const ProjectionTransform &t)
{
- print_float4(label, t.x);
- print_float4(label, t.y);
- print_float4(label, t.z);
- print_float4(label, t.w);
- printf("\n");
+ print_float4(label, t.x);
+ print_float4(label, t.y);
+ print_float4(label, t.z);
+ print_float4(label, t.w);
+ printf("\n");
}
ccl_device_inline ProjectionTransform projection_perspective(float fov, float n, float f)
{
- ProjectionTransform persp = make_projection(
- 1, 0, 0, 0,
- 0, 1, 0, 0,
- 0, 0, f / (f - n), -f*n / (f - n),
- 0, 0, 1, 0);
+ ProjectionTransform persp = make_projection(
+ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, f / (f - n), -f * n / (f - n), 0, 0, 1, 0);
- float inv_angle = 1.0f/tanf(0.5f*fov);
+ float inv_angle = 1.0f / tanf(0.5f * fov);
- Transform scale = transform_scale(inv_angle, inv_angle, 1);
+ Transform scale = transform_scale(inv_angle, inv_angle, 1);
- return scale * persp;
+ return scale * persp;
}
ccl_device_inline ProjectionTransform projection_orthographic(float znear, float zfar)
{
- Transform t =
- transform_scale(1.0f, 1.0f, 1.0f / (zfar-znear)) *
- transform_translate(0.0f, 0.0f, -znear);
+ Transform t = transform_scale(1.0f, 1.0f, 1.0f / (zfar - znear)) *
+ transform_translate(0.0f, 0.0f, -znear);
- return ProjectionTransform(t);
+ return ProjectionTransform(t);
}
-#endif /* __KERNEL_GPU__ */
+#endif /* __KERNEL_GPU__ */
CCL_NAMESPACE_END
-#endif /* __UTIL_PROJECTION_H__ */
+#endif /* __UTIL_PROJECTION_H__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-13 03:15:31 +0300