public static float UpdateDecalEmissivity(MyDecalTriangle decalTriangle, float alpha, MyRenderObject renderObject)
{
float emisivity = 0;
if (decalTriangle.Emissivity > 0)
{
//emisivity = (float)(Math.Sin(decalTriangle.RandomOffset + decalTriangle.RandomOffset * MySandboxGame.TotalGamePlayTimeInMilliseconds / 1000.0f)) * 0.4f + 0.7f;
// 2 seconds default, more emissive lit longer
float stableLength = 2000 * decalTriangle.Emissivity;
if ((MyRender.RenderTimeInMS - decalTriangle.RandomOffset) < stableLength)
{
emisivity = 1;
}
else
{
emisivity = (float)(500 - (MyRender.RenderTimeInMS - stableLength - decalTriangle.RandomOffset)) / 500.0f;
if (emisivity < 0)
{
emisivity = 0;
}
}
emisivity *= decalTriangle.Emissivity;
if (emisivity > 0)
{
Color color = MyDecalsConstants.PROJECTILE_DECAL_COLOR;
Vector3D position;
MyRenderTransformObject transformObject = renderObject as MyRenderTransformObject;
if (transformObject != null)
{
position = Vector3D.Transform(decalTriangle.Position, transformObject.WorldMatrix);
}
else
if (renderObject is MyManualCullableRenderObject)
{
position = Vector3D.Transform(decalTriangle.Position, (renderObject as MyManualCullableRenderObject).WorldMatrix);
}
else
{
position = decalTriangle.Position;
}
MyTransparentGeometry.AddPointBillboard(
"DecalGlare",
color * alpha,
(Vector3)position,
1.5f * emisivity,
0);
if (decalTriangle.Light != null)
{
decalTriangle.Light.Color = color;
decalTriangle.Light.SetPosition(position);
float range = Math.Max(3 * emisivity * alpha, 0.1f);
decalTriangle.Light.Range = range;
}
}
}
return(emisivity);
}
/// <summary>
/// Removes decals from the specified entity (NOT voxel map).
/// E.g. when the entity is destroyed (destructible prefab).
/// </summary>
/// <param name="renderObject">The entity from which we want to remove decals. NOT MyVoxelMap!</param>
public static void RemoveModelDecals(MyRenderTransformObject renderObject)
{
m_decalsForModels.ReturnTrianglesBuffer(renderObject);
}
/// <summary>
/// Removes decals from the specified entity (NOT voxel map).
/// E.g. when the entity is destroyed (destructible prefab).
/// </summary>
/// <param name="renderObject">The entity from which we want to remove decals. NOT MyVoxelMap!</param>
public static void RemoveModelDecals(MyRenderTransformObject renderObject)
{
m_decalsForModels.ReturnTrianglesBuffer(renderObject);
}