// Copy triangles to array of vertexes and return count of triangles to draw
public int CopyDecalsToVertices(MyVertexFormatDecal[] vertices)
{
CheckIfBufferIsFull();
float fadingOutAlpha = 1;
if ((m_status == MyDecalsBufferState.FADING_OUT_ONLY_BEGINNING) || (m_status == MyDecalsBufferState.FADING_OUT_ALL))
{
fadingOutAlpha = 1 - MathHelper.Clamp((float)(MyMinerGame.TotalGamePlayTimeInMilliseconds - m_fadingOutStartTime) / (float)MyDecalsConstants.DECALS_FADE_OUT_INTERVAL_MILISECONDS, 0, 1);
}
int i = 0;
foreach (MyDecalTriangle decalTriangle in m_trianglesQueue)
{
float alpha = 1;
// If fading-out, we blend first 'm_fadingOutRealTriangleCount' triangles
if (m_status == MyDecalsBufferState.FADING_OUT_ALL)
{
alpha = fadingOutAlpha;
}
else if ((m_status == MyDecalsBufferState.FADING_OUT_ONLY_BEGINNING) && (i < m_fadingOutRealTriangleCount))
{
alpha = fadingOutAlpha;
}
int vertexIndexStart = i * MyDecalsConstants.VERTEXES_PER_DECAL;
vertices[vertexIndexStart + 0].Position = decalTriangle.Position0;
vertices[vertexIndexStart + 1].Position = decalTriangle.Position1;
vertices[vertexIndexStart + 2].Position = decalTriangle.Position2;
vertices[vertexIndexStart + 0].TexCoord = decalTriangle.TexCoord0;
vertices[vertexIndexStart + 1].TexCoord = decalTriangle.TexCoord1;
vertices[vertexIndexStart + 2].TexCoord = decalTriangle.TexCoord2;
Vector4 color0 = decalTriangle.Color0;
Vector4 color1 = decalTriangle.Color1;
Vector4 color2 = decalTriangle.Color2;
color0.W *= alpha;
color1.W *= alpha;
color2.W *= alpha;
vertices[vertexIndexStart + 0].Color = color0;
vertices[vertexIndexStart + 1].Color = color1;
vertices[vertexIndexStart + 2].Color = color2;
vertices[vertexIndexStart + 0].Normal = decalTriangle.Normal0;
vertices[vertexIndexStart + 1].Normal = decalTriangle.Normal1;
vertices[vertexIndexStart + 2].Normal = decalTriangle.Normal2;
vertices[vertexIndexStart + 0].Binormal = decalTriangle.Binormal0;
vertices[vertexIndexStart + 1].Binormal = decalTriangle.Binormal1;
vertices[vertexIndexStart + 2].Binormal = decalTriangle.Binormal2;
vertices[vertexIndexStart + 0].Tangent = decalTriangle.Tangent0;
vertices[vertexIndexStart + 1].Tangent = decalTriangle.Tangent1;
vertices[vertexIndexStart + 2].Tangent = decalTriangle.Tangent2;
float emisivity = MyDecals.UpdateDecalEmissivity(decalTriangle, alpha, Entity);
vertices[vertexIndexStart + 0].EmissiveRatio = emisivity;
vertices[vertexIndexStart + 1].EmissiveRatio = emisivity;
vertices[vertexIndexStart + 2].EmissiveRatio = emisivity;
i++;
}
return i;
}
public void Draw(MyVertexFormatDecal[] vertices, MyEffectDecals effect, MyTexture2D[] texturesDiffuse, MyTexture2D[] texturesNormalMap)
{
CheckIfBufferIsFull();
// SortForSAP buffers by texture
m_sortTriangleBuffersByTexture.Clear();
foreach (MyDecalsForPhysObjectsTriangleBuffer buffer in m_usedTriangleBuffers)
{
if (buffer.Entity.IsVisible() == true)
{
if ((buffer.Entity == MyGuiScreenGamePlay.Static.ControlledEntity
|| buffer.Entity.Parent == MyGuiScreenGamePlay.Static.ControlledEntity) &&
MyGuiScreenGamePlay.Static.IsFirstPersonView)
{
// Don't draw decals if they are on an entity in which the camera is
continue;
}
// Decal with "ExplosionSmut" texture is much larger, so it must be drawed to larger distance.
float fadeoutDistance = MyDecals.GetMaxDistanceForDrawingDecals();
if (buffer.DecalTexture == MyDecalTexturesEnum.ExplosionSmut)
fadeoutDistance *= MyDecalsConstants.DISTANCE_MULTIPLIER_FOR_LARGE_DECALS;
//if (Vector3.Distance(MyCamera.m_initialSunWindPosition, buffer.PhysObject.GetPosition()) >= (MyDecals.GetMaxDistanceForDrawingDecals()))
//if (buffer.PhysObject.GetDistanceBetweenCameraAndBoundingSphere() >= MyDecals.GetMaxDistanceForDrawingDecals())
if (buffer.Entity.GetDistanceBetweenCameraAndBoundingSphere() >= fadeoutDistance)
{
continue;
}
m_sortTriangleBuffersByTexture.Add(buffer);
}
}
m_sortTriangleBuffersByTexture.Sort();
// Draw decals - sorted by texture
MyDecalTexturesEnum? lastDecalTexture = null;
for (int i = 0; i < m_sortTriangleBuffersByTexture.Count; i++)
{
MyDecalsForPhysObjectsTriangleBuffer buffer = m_sortTriangleBuffersByTexture[i];
int trianglesCount = buffer.CopyDecalsToVertices(vertices);
if (trianglesCount <= 0) continue;
// Switch texture only if different than previous one
if ((lastDecalTexture == null) || (lastDecalTexture != buffer.DecalTexture))
{
int textureIndex = (int)buffer.DecalTexture;
effect.SetDecalDiffuseTexture(texturesDiffuse[textureIndex]);
effect.SetDecalNormalMapTexture(texturesNormalMap[textureIndex]);
lastDecalTexture = buffer.DecalTexture;
}
//effect.SetWorldMatrix(buffer.Entity.WorldMatrix * Matrix.CreateTranslation(-MyCamera.Position));
effect.SetWorldMatrix(buffer.Entity.GetWorldMatrixForDraw());
effect.SetViewProjectionMatrix(MyCamera.ViewProjectionMatrixAtZero);
// set FadeoutDistance
float fadeoutDistance = MyDecals.GetMaxDistanceForDrawingDecals();
if (buffer.DecalTexture == MyDecalTexturesEnum.ExplosionSmut)
fadeoutDistance *= MyDecalsConstants.DISTANCE_MULTIPLIER_FOR_LARGE_DECALS;
effect.SetFadeoutDistance(fadeoutDistance);
if (!MyRenderConstants.RenderQualityProfile.ForwardRender)
effect.SetTechnique(MyEffectDecals.Technique.Model);
else
effect.SetTechnique(MyEffectDecals.Technique.ModelForward);
MyMinerGame.Static.GraphicsDevice.VertexDeclaration = MyVertexFormatDecal.VertexDeclaration;
effect.Begin();
MyMinerGame.Static.GraphicsDevice.DrawUserPrimitives(PrimitiveType.TriangleList, 0, trianglesCount, vertices);
effect.End();
MyPerformanceCounter.PerCameraDraw.DecalsForEntitiesInFrustum += trianglesCount;
}
}