int32 SSpineWidget::OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const { SSpineWidget* self = (SSpineWidget*)this; if (widget && widget->skeleton && widget->Atlas) { widget->skeleton->getColor().set(widget->Color.R, widget->Color.G, widget->Color.B, widget->Color.A); if (widget->atlasNormalBlendMaterials.Num() != widget->Atlas->atlasPages.Num()) { widget->atlasNormalBlendMaterials.SetNum(0); widget->pageToNormalBlendMaterial.Empty(); widget->atlasAdditiveBlendMaterials.SetNum(0); widget->pageToAdditiveBlendMaterial.Empty(); widget->atlasMultiplyBlendMaterials.SetNum(0); widget->pageToMultiplyBlendMaterial.Empty(); widget->atlasScreenBlendMaterials.SetNum(0); widget->pageToScreenBlendMaterial.Empty(); for (int i = 0; i < widget->Atlas->atlasPages.Num(); i++) { AtlasPage* currPage = widget->Atlas->GetAtlas()->getPages()[i]; UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(widget->NormalBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, widget->Atlas->atlasPages[i]); widget->atlasNormalBlendMaterials.Add(material); widget->pageToNormalBlendMaterial.Add(currPage, material); material = UMaterialInstanceDynamic::Create(widget->AdditiveBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, widget->Atlas->atlasPages[i]); widget->atlasAdditiveBlendMaterials.Add(material); widget->pageToAdditiveBlendMaterial.Add(currPage, material); material = UMaterialInstanceDynamic::Create(widget->MultiplyBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, widget->Atlas->atlasPages[i]); widget->atlasMultiplyBlendMaterials.Add(material); widget->pageToMultiplyBlendMaterial.Add(currPage, material); material = UMaterialInstanceDynamic::Create(widget->ScreenBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, widget->Atlas->atlasPages[i]); widget->atlasScreenBlendMaterials.Add(material); widget->pageToScreenBlendMaterial.Add(currPage, material); } } else { widget->pageToNormalBlendMaterial.Empty(); widget->pageToAdditiveBlendMaterial.Empty(); widget->pageToMultiplyBlendMaterial.Empty(); widget->pageToScreenBlendMaterial.Empty(); for (int i = 0; i < widget->Atlas->atlasPages.Num(); i++) { AtlasPage* currPage = widget->Atlas->GetAtlas()->getPages()[i]; UTexture2D* texture = widget->Atlas->atlasPages[i]; UTexture* oldTexture = nullptr; UMaterialInstanceDynamic* current = widget->atlasNormalBlendMaterials[i]; if (!current || !current->GetTextureParameterValue(widget->TextureParameterName, oldTexture) || oldTexture != texture) { UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(widget->NormalBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, texture); widget->atlasNormalBlendMaterials[i] = material; } widget->pageToNormalBlendMaterial.Add(currPage, widget->atlasNormalBlendMaterials[i]); current = widget->atlasAdditiveBlendMaterials[i]; if (!current || !current->GetTextureParameterValue(widget->TextureParameterName, oldTexture) || oldTexture != texture) { UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(widget->AdditiveBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, texture); widget->atlasAdditiveBlendMaterials[i] = material; } widget->pageToAdditiveBlendMaterial.Add(currPage, widget->atlasAdditiveBlendMaterials[i]); current = widget->atlasMultiplyBlendMaterials[i]; if (!current || !current->GetTextureParameterValue(widget->TextureParameterName, oldTexture) || oldTexture != texture) { UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(widget->MultiplyBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, texture); widget->atlasMultiplyBlendMaterials[i] = material; } widget->pageToMultiplyBlendMaterial.Add(currPage, widget->atlasMultiplyBlendMaterials[i]); current = widget->atlasScreenBlendMaterials[i]; if (!current || !current->GetTextureParameterValue(widget->TextureParameterName, oldTexture) || oldTexture != texture) { UMaterialInstanceDynamic* material = UMaterialInstanceDynamic::Create(widget->ScreenBlendMaterial, widget); material->SetTextureParameterValue(widget->TextureParameterName, texture); widget->atlasScreenBlendMaterials[i] = material; } widget->pageToScreenBlendMaterial.Add(currPage, widget->atlasScreenBlendMaterials[i]); } } // self->UpdateMesh(LayerId, OutDrawElements, AllottedGeometry, widget->skeleton); } //return LayerId; self->renderData.IndexData.SetNumUninitialized(6); uint32* indexData = (uint32*)renderData.IndexData.GetData(); indexData[0] = 0; indexData[1] = 1; indexData[2] = 2; indexData[3] = 2; indexData[4] = 3; indexData[5] = 0; self->renderData.VertexData.SetNumUninitialized(4); FSlateVertex* vertexData = (FSlateVertex*)renderData.VertexData.GetData(); FVector2D offset = AllottedGeometry.AbsolutePosition; FColor white = FColor(0xffffffff); float width = AllottedGeometry.GetAbsoluteSize().X; float height = AllottedGeometry.GetAbsoluteSize().Y; setVertex(&vertexData[0], 0, 0, 0, 0, white, offset); setVertex(&vertexData[1], width, 0, 1, 0, white, offset); setVertex(&vertexData[2], width, height, 1, 1, white, offset); setVertex(&vertexData[3], 0, height, 0, 1, white, offset); if (brush && renderData.VertexData.Num() > 0 && renderData.IndexData.Num() > 0) { FSlateShaderResourceProxy* shaderResource = FSlateDataPayload::ResourceManager->GetShaderResource(widget->Brush); FSlateResourceHandle resourceHandle = FSlateApplication::Get().GetRenderer()->GetResourceHandle(widget->Brush); if (shaderResource) FSlateDrawElement::MakeCustomVerts(OutDrawElements, LayerId, resourceHandle, renderData.VertexData, renderData.IndexData, nullptr, 0, 0); } return LayerId; }