private bool OnBeforeSaveTexture(TextureMeta id)
{
if (id.TargetIsRenderTexture())
{
id.RenderTexture_To_Texture2D();
}
var tex = id.texture2D;
if (id.preserveTransparency && !tex.TextureHasAlpha())
{
if (_loopLock.Unlocked)
{
using (_loopLock.Lock())
{
//ChangeTexture(id.NewTexture2D());
//id.texture2D.name = id.texture2D.name + "_A";
Debug.Log("Old Texture had no Alpha channel, creating new");
string tname = id.texture2D.name + "_A";
id.texture2D = id.texture2D.CreatePngSameDirectory(tname);
id.saveName = tname;
id.texture2D.CopyImportSettingFrom(tex).Reimport_IfNotReadale();
SetTextureOnMaterial(id);
}
}
return(false);
}
id.SetAlphaSavePixel();
return(true);
}
public bool IsEnabledFor(PlaytimePainter painter, TextureMeta id, BrushConfig cfg) => painter.IsAtlased() && !id.TargetIsRenderTexture();
public void SHADER_BRUSH_UPDATE(BrushConfig brush = null, float brushAlpha = 1, TextureMeta id = null, PlaytimePainter painter = null)
{
if (brush == null)
{
brush = GlobalBrush;
}
if (id == null && painter)
{
id = painter.TexMeta;
}
brush.previewDirty = false;
if (id == null)
{
return;
}
float textureWidth = id.width;
var rendTex = id.TargetIsRenderTexture();
var brushType = brush.GetBrushType(!rendTex);
var blitMode = brush.GetBlitMode(!rendTex);
var is3DBrush = brush.IsA3DBrush(painter);
var useAlphaBuffer = (brush.useAlphaBuffer && blitMode.SupportsAlphaBufferPainting && rendTex);
PainterShaderVariables.BrushColorProperty.GlobalValue = brush.Color;
PainterShaderVariables.BrushMaskProperty.GlobalValue = brush.mask.ToVector4();
float useTransparentLayerBackground = 0;
PainterShaderVariables.OriginalTextureTexelSize.GlobalValue = new Vector4(
1f / id.width,
1f / id.height,
id.width,
id.height
);
if (id.isATransparentLayer)
{
var md = painter.MatDta;
var mat = md.material;
if (md != null && md.usePreviewShader && mat)
{
var mt = mat.mainTexture;
PainterShaderVariables.TransparentLayerUnderProperty.GlobalValue = mt;
useTransparentLayerBackground = (mt && (id != mt.GetImgDataIfExists())) ? 1 : 0;
}
}
brushType.OnShaderBrushUpdate(brush);
if (rendTex)
{
PainterShaderVariables.SourceMaskProperty.GlobalValue = brush.useMask ? Data.masks.TryGet(brush.selectedSourceMask) : null;
}
PainterShaderVariables.MaskDynamicsProperty.GlobalValue = new Vector4(
brush.maskTiling,
rendTex ? brush.hardness * brush.hardness : 0, // y - Hardness is 0 to do correct preview for Texture2D brush
((brush.flipMaskAlpha && brush.useMask) ? 0 : 1), // z - flip mask if any
(brush.maskFromGreyscale && brush.useMask) ? 1 : 0);
PainterShaderVariables.MaskOffsetProperty.GlobalValue = brush.maskOffset.ToVector4();
PainterShaderVariables.BrushFormProperty.GlobalValue = new Vector4(
brushAlpha, // x - transparency
brush.Size(is3DBrush), // y - scale for sphere
brush.Size(is3DBrush) / textureWidth, // z - scale for uv space
brush.blurAmount); // w - blur amount
PainterShaderVariables.AlphaBufferConfigProperty.GlobalValue = new Vector4(
brush.alphaLimitForAlphaBuffer,
brush.worldSpaceBrushPixelJitter ? 1 : 0,
useAlphaBuffer ? 1 : 0,
0);
PainterShaderVariables.AlphaPaintingBuffer.GlobalValue = AlphaBuffer;
brushType.SetKeyword(id.useTexCoord2);
QcUnity.SetShaderKeyword(PainterShaderVariables.BRUSH_TEXCOORD_2, id.useTexCoord2);
//if (blitMode.SupportsTransparentLayer)
QcUnity.SetShaderKeyword(PainterShaderVariables.TARGET_TRANSPARENT_LAYER, id.isATransparentLayer);
blitMode.SetKeyword(id).SetGlobalShaderParameters();
if (rendTex && blitMode.UsingSourceTexture)
{
PainterShaderVariables.SourceTextureProperty.GlobalValue = Data.sourceTextures.TryGet(brush.selectedSourceTexture);
PainterShaderVariables.TextureSourceParameters.GlobalValue = new Vector4(
(float)brush.srcColorUsage,
brush.clampSourceTexture ? 1f : 0f,
useTransparentLayerBackground,
brush.ignoreSrcTextureTransparency ? 1f : 0f
);
}
}