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#if UNITY_EDITOR
using System;
using System.Reflection;
using UnityEditor;
using UnityEngine;
using UnityEngine.Experimental.Rendering.HDPipeline;
#endif
namespace UnityEditor.Experimental.Rendering.HDPipeline
{
#if UNITY_EDITOR
public static class HDLightEditorUtilities
{
public static void DrawSpotlightGizmo(Light spotlight, bool selected)
{
var flatRadiusAtRange = spotlight.range * Mathf.Tan(spotlight.spotAngle * Mathf.Deg2Rad * 0.5f);
var vectorLineUp = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.up * flatRadiusAtRange - spotlight.gameObject.transform.position);
var vectorLineDown = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.up * -flatRadiusAtRange - spotlight.gameObject.transform.position);
var vectorLineRight = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.right * flatRadiusAtRange - spotlight.gameObject.transform.position);
var vectorLineLeft = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.right * -flatRadiusAtRange - spotlight.gameObject.transform.position);
var rangeDiscDistance = Mathf.Cos(Mathf.Deg2Rad * spotlight.spotAngle / 2) * spotlight.range;
var rangeDiscRadius = spotlight.range * Mathf.Sin(spotlight.spotAngle * Mathf.Deg2Rad * 0.5f);
var nearDiscDistance = Mathf.Cos(Mathf.Deg2Rad * spotlight.spotAngle / 2) * spotlight.shadowNearPlane;
var nearDiscRadius = spotlight.shadowNearPlane * Mathf.Sin(spotlight.spotAngle * Mathf.Deg2Rad * 0.5f);
//Draw Range disc
Handles.Disc(spotlight.gameObject.transform.rotation, spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * rangeDiscDistance, spotlight.gameObject.transform.forward, rangeDiscRadius, false, 1);
//Draw Lines
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineUp * spotlight.range);
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineDown * spotlight.range);
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineRight * spotlight.range);
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineLeft * spotlight.range);
if (selected)
{
//Draw Range Arcs
Handles.DrawWireArc(spotlight.gameObject.transform.position, spotlight.gameObject.transform.right, vectorLineUp, spotlight.spotAngle, spotlight.range);
Handles.DrawWireArc(spotlight.gameObject.transform.position, spotlight.gameObject.transform.up, vectorLineLeft, spotlight.spotAngle, spotlight.range);
//Draw Near Plane Disc
if (spotlight.shadows != LightShadows.None) Handles.Disc(spotlight.gameObject.transform.rotation, spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * nearDiscDistance, spotlight.gameObject.transform.forward, nearDiscRadius, false, 1);
//Inner Cone
var additionalLightData = spotlight.GetComponent<HDAdditionalLightData>();
DrawInnerCone(spotlight, additionalLightData);
}
}
public static void DrawInnerCone(Light spotlight, HDAdditionalLightData additionalLightData)
{
if (additionalLightData == null) return;
var flatRadiusAtRange = spotlight.range * Mathf.Tan(spotlight.spotAngle * additionalLightData.m_InnerSpotPercent * 0.01f * Mathf.Deg2Rad * 0.5f);
var vectorLineUp = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.up * flatRadiusAtRange - spotlight.gameObject.transform.position);
var vectorLineDown = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.up * -flatRadiusAtRange - spotlight.gameObject.transform.position);
var vectorLineRight = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.right * flatRadiusAtRange - spotlight.gameObject.transform.position);
var vectorLineLeft = Vector3.Normalize(spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * spotlight.range + spotlight.gameObject.transform.right * -flatRadiusAtRange - spotlight.gameObject.transform.position);
//Draw Lines
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineUp * spotlight.range);
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineDown * spotlight.range);
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineRight * spotlight.range);
Gizmos.DrawLine(spotlight.gameObject.transform.position, spotlight.gameObject.transform.position + vectorLineLeft * spotlight.range);
var innerAngle = spotlight.spotAngle * additionalLightData.GetInnerSpotPercent01();
if (innerAngle > 0)
{
var innerDiscDistance = Mathf.Cos(Mathf.Deg2Rad * innerAngle * 0.5f) * spotlight.range;
var innerDiscRadius = spotlight.range * Mathf.Sin(innerAngle * Mathf.Deg2Rad * 0.5f);
//Draw Range disc
Handles.Disc(spotlight.gameObject.transform.rotation, spotlight.gameObject.transform.position + spotlight.gameObject.transform.forward * innerDiscDistance, spotlight.gameObject.transform.forward, innerDiscRadius, false, 1);
}
}
public static void DrawArealightGizmo(Light arealight)
{
var RectangleSize = new Vector3(arealight.areaSize.x, arealight.areaSize.y, 0);
// Remove scale for light, not take into account
var localToWorldMatrix = Matrix4x4.TRS(arealight.transform.position, arealight.transform.rotation, Vector3.one);
Gizmos.matrix = localToWorldMatrix;
Gizmos.DrawWireCube(Vector3.zero, RectangleSize);
Gizmos.matrix = Matrix4x4.identity;
Gizmos.DrawWireSphere(arealight.transform.position, arealight.range);
}
public static void DrawPointlightGizmo(Light pointlight, bool selected)
{
if (pointlight.shadows != LightShadows.None && selected) Gizmos.DrawWireSphere(pointlight.transform.position, pointlight.shadowNearPlane);
Gizmos.DrawWireSphere(pointlight.transform.position, pointlight.range);
}
public static void DrawSpherelightGizmo(Light spherelight)
{
var additionalLightData = spherelight.GetComponent<HDAdditionalLightData>();
if (additionalLightData == null) return;
Gizmos.DrawSphere(spherelight.transform.position, additionalLightData.shapeWidth);
if (spherelight.shadows != LightShadows.None) Gizmos.DrawWireSphere(spherelight.transform.position, spherelight.shadowNearPlane);
Gizmos.DrawWireSphere(spherelight.transform.position, spherelight.range);
}
// Same as Gizmo.DrawFrustum except that when aspect is below one, fov represent fovX instead of fovY
// Use to match our light frustum pyramid behavior
public static void DrawLightPyramidFrustum(Vector3 center, float fov, float maxRange, float minRange, float aspect)
{
fov = Mathf.Deg2Rad * fov * 0.5f;
float tanfov = Mathf.Tan(fov);
Vector3 farEnd = new Vector3(0, 0, maxRange);
Vector3 endSizeX;
Vector3 endSizeY;
if (aspect >= 1.0f)
{
endSizeX = new Vector3(maxRange * tanfov * aspect, 0, 0);
endSizeY = new Vector3(0, maxRange * tanfov, 0);
}
else
{
endSizeX = new Vector3(maxRange * tanfov, 0, 0);
endSizeY = new Vector3(0, maxRange * tanfov / aspect, 0);
}
Vector3 s1, s2, s3, s4;
Vector3 e1 = farEnd + endSizeX + endSizeY;
Vector3 e2 = farEnd - endSizeX + endSizeY;
Vector3 e3 = farEnd - endSizeX - endSizeY;
Vector3 e4 = farEnd + endSizeX - endSizeY;
if (minRange <= 0.0f)
{
s1 = s2 = s3 = s4 = center;
}
else
{
Vector3 startSizeX;
Vector3 startSizeY;
if (aspect >= 1.0f)
{
startSizeX = new Vector3(minRange * tanfov * aspect, 0, 0);
startSizeY = new Vector3(0, minRange * tanfov, 0);
}
else
{
startSizeY = new Vector3(minRange * tanfov / aspect, 0, 0);
startSizeX = new Vector3(0, minRange * tanfov, 0);
}
Vector3 startPoint = center;
s1 = startPoint + startSizeX + startSizeY;
s2 = startPoint - startSizeX + startSizeY;
s3 = startPoint - startSizeX - startSizeY;
s4 = startPoint + startSizeX - startSizeY;
Gizmos.DrawLine(s1, s2);
Gizmos.DrawLine(s2, s3);
Gizmos.DrawLine(s3, s4);
Gizmos.DrawLine(s4, s1);
}
Gizmos.DrawLine(e1, e2);
Gizmos.DrawLine(e2, e3);
Gizmos.DrawLine(e3, e4);
Gizmos.DrawLine(e4, e1);
Gizmos.DrawLine(s1, e1);
Gizmos.DrawLine(s2, e2);
Gizmos.DrawLine(s3, e3);
Gizmos.DrawLine(s4, e4);
}
public static void DrawLightOrthoFrustum(Vector3 center, float width, float height, float maxRange, float minRange)
{
Vector3 farEnd = new Vector3(0, 0, maxRange);
Vector3 endSizeX = new Vector3(width, 0, 0);
Vector3 endSizeY = new Vector3(0, height, 0);
Vector3 s1, s2, s3, s4;
Vector3 e1 = farEnd + endSizeX + endSizeY;
Vector3 e2 = farEnd - endSizeX + endSizeY;
Vector3 e3 = farEnd - endSizeX - endSizeY;
Vector3 e4 = farEnd + endSizeX - endSizeY;
if (minRange <= 0.0f)
{
s1 = s2 = s3 = s4 = center;
}
else
{
Vector3 startSizeX = new Vector3(width, 0, 0);
Vector3 startSizeY = new Vector3(0, height, 0);
Vector3 startPoint = center;
s1 = startPoint + startSizeX + startSizeY;
s2 = startPoint - startSizeX + startSizeY;
s3 = startPoint - startSizeX - startSizeY;
s4 = startPoint + startSizeX - startSizeY;
Gizmos.DrawLine(s1, s2);
Gizmos.DrawLine(s2, s3);
Gizmos.DrawLine(s3, s4);
Gizmos.DrawLine(s4, s1);
}
Gizmos.DrawLine(e1, e2);
Gizmos.DrawLine(e2, e3);
Gizmos.DrawLine(e3, e4);
Gizmos.DrawLine(e4, e1);
Gizmos.DrawLine(s1, e1);
Gizmos.DrawLine(s2, e2);
Gizmos.DrawLine(s3, e3);
Gizmos.DrawLine(s4, e4);
}
public static void DrawFrustumlightGizmo(Light frustumlight)
{
var additionalLightData = frustumlight.GetComponent<HDAdditionalLightData>();
if (additionalLightData == null) return;
Matrix4x4 matrix = new Matrix4x4(frustumlight.transform.right, frustumlight.transform.up, frustumlight.transform.forward, frustumlight.transform.position);
Gizmos.matrix = matrix;
if (additionalLightData.spotLightShape == SpotLightShape.Pyramid)
{
DrawLightPyramidFrustum(Vector3.zero, frustumlight.spotAngle, frustumlight.range, 0.0f, additionalLightData.aspectRatio);
}
else // Ortho frustum
{
//DrawLightOrthoFrustum(Vector3.zero, additionalLightData.shapeWidth, additionalLightData.shapeHeight, frustumlight.range, 0.0f);
Vector3 frustumCenter = new Vector3(0.0f, 0.0f, 0.5f * frustumlight.range);
Vector3 frustumsize = new Vector3(additionalLightData.shapeWidth, additionalLightData.shapeHeight, frustumlight.range);
Gizmos.DrawWireCube(frustumCenter, frustumsize);
}
Gizmos.matrix = Matrix4x4.identity;
}
public static void DrawDirectionalLightGizmo(Light directionalLight)
{
var gizmoSize = 0.2f;
Handles.Disc(directionalLight.transform.rotation, directionalLight.transform.position, directionalLight.gameObject.transform.forward, gizmoSize, false, 1);
Gizmos.DrawLine(directionalLight.transform.position, directionalLight.transform.position + directionalLight.transform.forward);
Gizmos.DrawLine(directionalLight.transform.position + directionalLight.transform.up * gizmoSize, directionalLight.transform.position + directionalLight.transform.up * gizmoSize + directionalLight.transform.forward);
Gizmos.DrawLine(directionalLight.transform.position + directionalLight.transform.up * -gizmoSize, directionalLight.transform.position + directionalLight.transform.up * -gizmoSize + directionalLight.transform.forward);
Gizmos.DrawLine(directionalLight.transform.position + directionalLight.transform.right * gizmoSize, directionalLight.transform.position + directionalLight.transform.right * gizmoSize + directionalLight.transform.forward);
Gizmos.DrawLine(directionalLight.transform.position + directionalLight.transform.right * -gizmoSize, directionalLight.transform.position + directionalLight.transform.right * -gizmoSize + directionalLight.transform.forward);
}
public static void DrawCross(Transform m_transform)
{
var gizmoSize = 0.25f;
Gizmos.DrawLine(m_transform.position, m_transform.position + m_transform.TransformVector(m_transform.root.forward * gizmoSize / m_transform.localScale.z));
Gizmos.DrawLine(m_transform.position, m_transform.position + m_transform.TransformVector(m_transform.root.forward * -gizmoSize / m_transform.localScale.z));
Gizmos.DrawLine(m_transform.position, m_transform.position + m_transform.TransformVector(m_transform.root.up * gizmoSize / m_transform.localScale.y));
Gizmos.DrawLine(m_transform.position, m_transform.position + m_transform.TransformVector(m_transform.root.up * -gizmoSize / m_transform.localScale.y));
Gizmos.DrawLine(m_transform.position, m_transform.position + m_transform.TransformVector(m_transform.root.right * gizmoSize / m_transform.localScale.x));
Gizmos.DrawLine(m_transform.position, m_transform.position + m_transform.TransformVector(m_transform.root.right * -gizmoSize / m_transform.localScale.x));
}
}
#endif
}