public static bool Paint(StrokeVector stroke, float brushAlpha, ImageData image, BrushConfig bc, PlaytimePainter pntr) { Vector2 uvCoords = stroke.uvFrom; brAlpha = brushAlpha; bc.PrepareCPUBlit(); if (image == null || image.Pixels == null) { return(false); } int ihalf = (int)(half - 0.5f); bool smooth = bc.Type(true) != BrushTypePixel.Inst; if (smooth) { ihalf += 1; } MyIntVec2 tmp = image.UvToPixelNumber(uvCoords);//new myIntVec2 (pixIndex); int fromx = tmp.x - ihalf; tmp.y -= ihalf; var pixels = image.Pixels; for (y = -ihalf; y < ihalf + 1; y++) { tmp.x = fromx; for (x = -ihalf; x < ihalf + 1; x++) { if (_alphaMode()) { _blitMode(ref pixels[image.PixelNo(tmp)]); } tmp.x += 1; } tmp.y += 1; } return(true); }
public bool PaintTexture2D(StrokeVector stroke, float brushAlpha, ImageData image, BrushConfig bc, PlaytimePainter pntr) { var volume = image.texture2D.GetVolumeTextureData(); if (volume != null) { if (volume.VolumeJobIsRunning) { return(false); } float volumeScale = volume.size; Vector3 pos = (stroke.posFrom - volume.transform.position) / volumeScale + 0.5f * Vector3.one; int height = volume.Height; int texWidth = image.width; Blit_Functions.brAlpha = brushAlpha; bc.PrepareCPUBlit(); Blit_Functions.half = bc.Size(true) / volumeScale; var pixels = image.Pixels; int ihalf = (int)(Blit_Functions.half - 0.5f); bool smooth = bc.Type(true) != BrushTypePixel.Inst; if (smooth) { ihalf += 1; } Blit_Functions._alphaMode = Blit_Functions.SphereAlpha; int sliceWidth = texWidth / volume.h_slices; int hw = sliceWidth / 2; int y = (int)pos.y; int z = (int)(pos.z + hw); int x = (int)(pos.x + hw); for (Blit_Functions.y = -ihalf; Blit_Functions.y < ihalf + 1; Blit_Functions.y++) { int h = y + Blit_Functions.y; if (h >= height) { return(true); } if (h >= 0) { int hy = h / volume.h_slices; int hx = h % volume.h_slices; int hTex_index = (hy * texWidth + hx) * sliceWidth; for (Blit_Functions.z = -ihalf; Blit_Functions.z < ihalf + 1; Blit_Functions.z++) { int trueZ = z + Blit_Functions.z; if (trueZ >= 0 && trueZ < sliceWidth) { int yTex_index = hTex_index + trueZ * texWidth; for (Blit_Functions.x = -ihalf; Blit_Functions.x < ihalf + 1; Blit_Functions.x++) { if (Blit_Functions._alphaMode()) { int trueX = x + Blit_Functions.x; if (trueX >= 0 && trueX < sliceWidth) { int texIndex = yTex_index + trueX; Blit_Functions._blitMode(ref pixels[texIndex]); } } } } } } } return(true); } return(false); }