private void DrawNextPaint()
{
if (P3dPaintMaterial.CachedInstances.Count > 0)
{
if (paintIndex >= P3dPaintMaterial.CachedInstances.Count)
{
paintIndex = 0;
}
var paint = P3dPaintMaterial.CachedInstances[paintIndex++];
DestroyImmediate(paint.Thumbnail);
paint.Thumbnail = null;
if (paint != null && paint.Thumbnail == null && paint.Material != null)
{
var tempTextures = new List <RenderTexture>();
if (paintProperties == null)
{
paintProperties = new MaterialPropertyBlock();
}
else
{
paintProperties.Clear();
}
if (paint.Template != null)
{
foreach (var slot in paint.Template.Slots)
{
var slotR = paint.GetSlot(slot.WriteR.SourceGroup);
var slotG = paint.GetSlot(slot.WriteG.SourceGroup);
var slotB = paint.GetSlot(slot.WriteB.SourceGroup);
var slotA = paint.GetSlot(slot.WriteA.SourceGroup);
if (slotR != null || slotG != null || slotB != null || slotA != null)
{
var tempTexture = P3dHelper.GetRenderTexture(new RenderTextureDescriptor(1024, 1024, RenderTextureFormat.ARGB32, 0));
tempTextures.Add(tempTexture);
var textureR = P3dHelper.GetRenderTexture(tempTexture.descriptor);
var textureG = P3dHelper.GetRenderTexture(tempTexture.descriptor);
var textureB = P3dHelper.GetRenderTexture(tempTexture.descriptor);
var textureA = P3dHelper.GetRenderTexture(tempTexture.descriptor);
WriteThumbnailTex(textureR, slotR, slot.WriteR);
WriteThumbnailTex(textureG, slotG, slot.WriteG);
WriteThumbnailTex(textureB, slotB, slot.WriteB);
WriteThumbnailTex(textureA, slotA, slot.WriteA);
var channelR = P3dHelper.IndexToVector((int)slot.WriteR.SourceChannel);
var channelG = P3dHelper.IndexToVector((int)slot.WriteG.SourceChannel);
var channelB = P3dHelper.IndexToVector((int)slot.WriteB.SourceChannel);
var channelA = P3dHelper.IndexToVector((int)slot.WriteA.SourceChannel);
P3dPaintReplaceChannels.Blit(tempTexture, textureR, textureG, textureB, textureA, channelR, channelG, channelB, channelA);
P3dHelper.ReleaseRenderTexture(textureR);
P3dHelper.ReleaseRenderTexture(textureG);
P3dHelper.ReleaseRenderTexture(textureB);
P3dHelper.ReleaseRenderTexture(textureA);
paintProperties.SetTexture(slot.Name, tempTexture);
}
}
}
BeginPreview(thumbnailUtil, new Rect(0, 0, settings.ThumbnailSize, settings.ThumbnailSize));
var probeAnchor = default(Transform);
var probeExists = false;
if (settings.Environment != null)
{
probeAnchor = settings.Environment.transform;
probeExists = true;
}
switch (paint.Style)
{
case P3dPaintMaterial.StyleType.Seamless:
{
thumbnailUtil.DrawMesh(P3dHelper.GetSphereMesh(), Matrix4x4.identity, paint.Material, 0, paintProperties, probeAnchor, probeExists);
}
break;
case P3dPaintMaterial.StyleType.Decal:
{
thumbnailUtil.DrawMesh(P3dHelper.GetQuadMesh(), Matrix4x4.identity, paint.Material, 0, paintProperties, probeAnchor, probeExists);
}
break;
}
paint.Thumbnail = P3dHelper.GetReadableCopy(EndPreview(thumbnailUtil));
foreach (var tempTexture in tempTextures)
{
P3dHelper.ReleaseRenderTexture(tempTexture);
}
}
}
}