/// 描画処理
public override bool DoDraw2(DemoGame.GraphicsDevice graphDev, Vector3 BasePos)
{
if (!sprite.Visible)
{
return(false);
}
// sprite.SetDrawRect(0,0,10,10);
var currentMatrix = CalcSpriteMatrix(graphDev.GetCurrentCamera().Pos, BasePos);
var modelMatrix = sprite.CreateModelMatrix(0, 0);
var worldViewProj = graphDev.GetCurrentCamera().Projection *graphDev.GetCurrentCamera().View *currentMatrix *modelMatrix;
textureShaderProgram.SetUniformValue(0, ref worldViewProj);
float alphaRate = 1.0f;
int alphaRateId = textureShaderProgram.FindUniform("AlphaRate");
if (alphaRateId >= 0)
{
textureShaderProgram.SetUniformValue(alphaRateId, alphaRate);
}
graphDev.Graphics.SetShaderProgram(textureShaderProgram);
graphDev.Graphics.SetVertexBuffer(0, sprite.Vertices);
graphDev.Graphics.SetTexture(0, sprite.Texture);
graphDev.Graphics.Enable(EnableMode.Blend);
graphDev.Graphics.Disable(EnableMode.DepthTest);
graphDev.Graphics.Disable(EnableMode.CullFace);
graphDev.Graphics.SetBlendFunc(BlendFuncMode.Add, BlendFuncFactor.SrcAlpha, BlendFuncFactor.OneMinusSrcAlpha);
graphDev.Graphics.DrawArrays(DrawMode.TriangleFan, 0, 4);
return(true);
}
