Differential D12864 Diff 43297 intern/cycles/util/util_projection.h

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	typedef struct PerspectiveMotionTransform {			typedef struct PerspectiveMotionTransform {
	ProjectionTransform pre;			ProjectionTransform pre;
	ProjectionTransform post;			ProjectionTransform post;
	} PerspectiveMotionTransform;			} PerspectiveMotionTransform;

	/* Functions */			/* Functions */

	ccl_device_inline float3 transform_perspective(const ProjectionTransform *t, const float3 a)			ccl_device_inline float3 transform_perspective(ccl_private const ProjectionTransform *t,
				const float3 a)
	{			{
	float4 b = make_float4(a.x, a.y, a.z, 1.0f);			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));			float3 c = make_float3(dot(t->x, b), dot(t->y, b), dot(t->z, b));
	float w = dot(t->w, b);			float w = dot(t->w, b);

	return (w != 0.0f) ? c / w : zero_float3();			return (w != 0.0f) ? c / w : zero_float3();
	}			}

	ccl_device_inline float3 transform_perspective_direction(const ProjectionTransform *t,			ccl_device_inline float3 transform_perspective_direction(ccl_private const ProjectionTransform *t,
	const float3 a)			const float3 a)
	{			{
	float3 c = make_float3(a.x * t->x.x + a.y * t->x.y + a.z * t->x.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->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);			a.x * t->z.x + a.y * t->z.y + a.z * t->z.z);

	return c;			return c;
	}			}
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