public static void projectCube(ref mset.SHEncoding sh, Cubemap cube, int mip, bool hdr)
{
sh.clearToBlack();
float totalarea = 0f;
ulong faceSize = (ulong)cube.width;
mip = Mathf.Min(mset.QPow.Log2i(faceSize) + 1, mip);
faceSize = (ulong)(faceSize >> mip);
float[] dc = new float[9];
Vector3 u = Vector3.zero;
for (ulong face = 0; face < 6; ++face)
{
Color rgba = Color.black;
Color[] pixels = cube.GetPixels((CubemapFace)face, mip);
for (ulong y = 0; y < faceSize; ++y)
{
for (ulong x = 0; x < faceSize; ++x)
{
//compute cube direction
float areaweight = 1f;
mset.Util.invCubeLookup(ref u, ref areaweight, face, x, y, faceSize);
float shscale = 4f / 3f;
ulong index = y * faceSize + x;
if (hdr)
{
mset.RGB.fromRGBM(ref rgba, pixels[index], true);
}
else
{
rgba = pixels[index];
}
//project on basis functions, and accumulate
dc[0] = project_l0_m0(u);
dc[1] = project_l1_mneg1(u);
dc[2] = project_l1_m0(u);
dc[3] = project_l1_m1(u);
dc[4] = project_l2_mneg2(u);
dc[5] = project_l2_mneg1(u);
dc[6] = project_l2_m0(u);
dc[7] = project_l2_m1(u);
dc[8] = project_l2_m2(u);
for (int i = 0; i < 9; ++i)
{
sh.c[3 * i + 0] += shscale * areaweight * rgba[0] * dc[i];
sh.c[3 * i + 1] += shscale * areaweight * rgba[1] * dc[i];
sh.c[3 * i + 2] += shscale * areaweight * rgba[2] * dc[i];
}
totalarea += areaweight;
}
}
}
//complete the integration by dividing by total area
scale(ref sh, 16f / totalarea);
}
static void scale(ref mset.SHEncoding sh, float s)
{
for (int i = 0; i < 27; ++i)
{
sh.c[i] *= s;
}
}
//script instance is destroyed
private void OnDestroy()
{
SH = null;
_blackCube = null;
specularCube = null;
skyboxCube = null;
}
//on enable or activate
private void OnEnable()
{
//finalize or allocate serialized properties here
if (SH == null)
{
SH = new mset.SHEncoding();
}
SH.copyToBuffer();
}
//script instance is destroyed
private void OnDestroy()
{
UnityEngine.Object.DestroyImmediate(_skyboxMaterial, false);
SH = null;
_skyboxMaterial = null;
_blackCube = null;
diffuseCube = null;
specularCube = null;
skyboxCube = null;
}
//on enable or activate
private void OnEnable()
{
//finalize or allocate serialized properties here
if (SH == null)
{
SH = new mset.SHEncoding();
}
if (this.CustomSH != null)
{
SH.copyFrom(this.CustomSH.SH);
}
SH.copyToBuffer();
SceneManager.sceneLoaded += SceneStart;
}
public static void projectCubeBuffer(ref mset.SHEncoding sh, CubeBuffer cube)
{
sh.clearToBlack();
float totalarea = 0f;
ulong faceSize = (ulong)cube.faceSize;
float[] dc = new float[9];
Vector3 u = Vector3.zero;
for (ulong face = 0; face < 6; ++face)
{
for (ulong y = 0; y < faceSize; ++y)
{
for (ulong x = 0; x < faceSize; ++x)
{
//compute cube direction
float areaweight = 1f;
mset.Util.invCubeLookup(ref u, ref areaweight, face, x, y, faceSize);
float shscale = 4f / 3f;
ulong index = face * faceSize * faceSize + y * faceSize + x;
Color rgba = cube.pixels[index];
//project on basis functions, and accumulate
dc[0] = project_l0_m0(u);
dc[1] = project_l1_mneg1(u);
dc[2] = project_l1_m0(u);
dc[3] = project_l1_m1(u);
dc[4] = project_l2_mneg2(u);
dc[5] = project_l2_mneg1(u);
dc[6] = project_l2_m0(u);
dc[7] = project_l2_m1(u);
dc[8] = project_l2_m2(u);
for (int i = 0; i < 9; ++i)
{
sh.c[3 * i + 0] += shscale * areaweight * rgba[0] * dc[i];
sh.c[3 * i + 1] += shscale * areaweight * rgba[1] * dc[i];
sh.c[3 * i + 2] += shscale * areaweight * rgba[2] * dc[i];
}
totalarea += areaweight;
}
}
}
//complete the integration by dividing by total area
scale(ref sh, 16f / totalarea);
}
public static void convolve(ref mset.SHEncoding sh, float conv0, float conv1, float conv2)
{
for (int i = 0; i < 27; ++i)
{
if (i < 3)
{
sh.c[i] *= conv0;
}
else if (i < 12)
{
sh.c[i] *= conv1;
}
else
{
sh.c[i] *= conv2;
}
}
}
//script instance is destroyed
private void OnDestroy() {
SH = null;
_blackCube = null;
specularCube = null;
skyboxCube = null;
}
//on enable or activate
private void OnEnable() {
//finalize or allocate serialized properties here
if(SH == null) SH = new mset.SHEncoding();
if(this.CustomSH != null) SH.copyFrom(this.CustomSH.SH);
SH.copyToBuffer();
}
public static void convolve(ref mset.SHEncoding sh)
{
convolve(ref sh, 1f, 2f / 3f, 0.25f);
}
public void OnEnable()
{
clear();
hideFlags |= HideFlags.HideAndDontSave;
if (lightGizmo == null) {
lightGizmo = Resources.Load("light") as Texture2D;
}
if (pickerIcon == null) {
if (EditorGUIUtility.isProSkin) {
pickerIcon = Resources.Load("white_picker") as Texture2D;
}
else {
pickerIcon = Resources.Load("picker") as Texture2D;
}
}
//NOTE: buffers are now allocated along with The CubemapGUI, what's internal to the buffers is still controlled strictly
/*if (buffers == null) {
buffers = new CubeBuffer[4];
for (int i = 0; i < buffers.Length; ++i) {
buffers[i] = new CubeBuffer();
}
}*/
if(SH == null) SH = new mset.SHEncoding();
setType(type, inspector);
//updates path, buffers, and preview
reloadReference();
}
public void freeMem()
{
if(locked) return;
UnityEngine.Object.DestroyImmediate(preview,false);
UnityEngine.Object.DestroyImmediate(tempTexture,false);
preview = null;
tempTexture = null;
cube = null;
RT = null;
input = null;
srInput = null;
SH = null;
foreach(CubeBuffer buffer in buffers) {
buffer.clear();
}
}
//script instance is destroyed
private void OnDestroy()
{
UnityEngine.Object.DestroyImmediate(_skyboxMaterial, false);
SH = null;
_skyboxMaterial = null;
_blackCube = null;
diffuseCube = null;
specularCube = null;
skyboxCube = null;
}
