private Color SampleRenderTexture(Vector2 uv)
{
var curRt = RenderTexture.active;
var rtp = PainterCamera.Inst;
int size = RenderTextureBuffersManager.renderBuffersSize / 4;
RenderTexture.active = renderTexture ? renderTexture : RenderTextureBuffersManager.GetDownscaledBigRt(size, size);
if (!_sampler)
{
_sampler = new Texture2D(8, 8);
}
UVto01(ref uv);
if (!renderTexture)
{
uv.y = 1 - uv.y; // For some reason sampling is mirrored around Y axiz for BigRenderTexture (?)
}
uv *= RenderTexture.active.width;
_sampler.ReadPixels(new Rect(uv.x, uv.y, 1, 1), 0, 0);
RenderTexture.active = curRt;
var pix = _sampler.GetPixel(0, 0);
if (PainterCamera.Inst.IsLinearColorSpace)
{
pix = pix.linear;
}
return(pix);
}
public void Resize(int newWight, int newHeight)
{
if (newHeight >= 8 && newHeight <= 4096 && newWight >= 8 && newWight <= 4096 && (newWight != width || newHeight != height) && texture2D)
{
var tmp = renderTexture;
renderTexture = null;
Texture2D_To_RenderTexture();
texture2D.Resize(newWight, newHeight);
width = newWight;
height = newHeight;
texture2D.CopyFrom(RenderTextureBuffersManager.GetDownscaledBigRt(width, height));
PixelsFromTexture2D(texture2D);
SetAndApply();
renderTexture = tmp;
Debug.Log("Resize Complete");
}
}
private void RenderTexture_To_Texture2D(Texture2D tex)
{
if (!texture2D)
{
return;
}
var rt = renderTexture;
TexMGMT.TryApplyBufferChangesTo(this);
if (!rt && TexMGMT.imgMetaUsingRendTex == this)
{
rt = RenderTextureBuffersManager.GetDownscaledBigRt(width, height);
}
//Graphics.CopyTexture();
if (!rt)
{
return;
}
tex.CopyFrom(rt);
PixelsFromTexture2D(tex);
var converted = false;
if (PainterCamera.Inst.IsLinearColorSpace)
{
if (!tex.IsColorTexture())
{
converted = true;
PixelsToLinear();
}
}
if (converted)
{
SetAndApply();
}
else
{
texture2D.Apply(true);
}
}
public void RenderTexture_To_Texture2D(Texture2D tex)
{
if (!texture2D)
{
return;
}
var rt = renderTexture;
TexMGMT.TryApplyBufferChangesTo(this);
if (!rt && TexMGMT.imgMetaUsingRendTex == this)
{
rt = RenderTextureBuffersManager.GetDownscaledBigRt(width, height);
}
if (!rt)
{
return;
}
tex.CopyFrom(rt);
PixelsFromTexture2D(tex);
var converted = false;
/* MAC:
* Linear Space
* Big RT
* Editor
* Linear Texture = To Linear
* sRGB Texture =
* Playtime
* Linear Texture = To Linear
* sRGB Texture =
* Exclusive
* Editor
* Linear Texture =
* sRGB Texture =
* Playtime
* Linear Texture
* sRGB Texture =
* Gamma Space
* Big RT
* Editor
* Linear Texture =
* sRGB Texture =
* Playtime
* Linear Texture
* sRGB Texture =
* Exclusive
* Editor
* Linear Texture =
* sRGB Texture =
* Playtime
* Linear Texture =
* sRGB Texture =
*/
if (PainterCamera.Inst.IsLinearColorSpace)
{
if (!tex.IsColorTexture())
{
converted = true;
PixelsToLinear();
}
#if UNITY_2017
if (renderTexture != null)
{
PixelsToGamma();
converted = true;
}
#endif
}
//if (!RenderTexturePainter.inst.isLinearColorSpace)
//pixelsToLinear ();
if (converted)
{
SetAndApply();
}
else
{
texture2D.Apply(true);
}
//
}