private static uint GenerateTextureIndex(MyGPUEmitter emitter)
{
MyRenderProxy.Assert(emitter.AtlasDimension.X < MAX_ATLAS_DIMENSION, "emitter.AtlasDimension.X < MAX_ATLAS_DIMENSION");
MyRenderProxy.Assert(emitter.AtlasDimension.Y < MAX_ATLAS_DIMENSION, "emitter.AtlasDimension.Y < MAX_ATLAS_DIMENSION");
uint atlasOffset = (uint)emitter.AtlasFrameOffset;
MyRenderProxy.Assert(atlasOffset < MAX_ATLAS_INDEX, "atlasOffset < MAX_ATLAS_INDEX");
MyRenderProxy.Assert(emitter.AtlasFrameModulo < ((1 << ATLAS_INDEX_BITS) - 1), "emitter.AtlasFrameModulo < ((1 << ATLAS_INDEX_BITS) - 1)");
MyRenderProxy.Assert(
(emitter.AtlasFrameOffset + emitter.AtlasFrameModulo - 1) < (emitter.AtlasDimension.X * emitter.AtlasDimension.Y),
"(emitter.AtlasFrameOffset + emitter.AtlasFrameModulo - 1) < (emitter.AtlasDimension.X * emitter.AtlasDimension.Y)");
return(atlasOffset | ((uint)emitter.AtlasDimension.X << (ATLAS_INDEX_BITS + ATLAS_DIMENSION_BITS)) |
((uint)emitter.AtlasDimension.Y << (ATLAS_INDEX_BITS)));
}
internal static void UpdateData(MyGPUEmitter[] def)
{
for (int i = 0; i < def.Length; i++)
{
MyLiveData emitter;
if (m_emitters.TryGetValue(def[i].GID, out emitter))
{
var texId = Resources.MyTextures.GetTexture(def[i].AtlasTexture, Resources.MyTextureEnum.GUI, true);
if (emitter.TextureId != texId)
{
RemoveTexture(emitter.TextureId);
AddTexture(texId);
}
emitter.TextureId = texId;
MyRenderProxy.Assert(emitter.TextureId != Resources.TexId.NULL);
emitter.GPUEmitter = def[i];
emitter.GPUEmitter.Data.TextureIndex1 = GenerateTextureIndex(emitter);
emitter.GPUEmitter.Data.TextureIndex2 = (uint)def[i].AtlasFrameModulo;
emitter.GPUEmitter.Data.RotationMatrix = Matrix.Transpose(def[i].Data.RotationMatrix);
}
else MyRenderProxy.Assert(false, "invalid emitter id: " + def[i].GID);
}
}
public static void UpdateEnd()
{
if (GPUEmitters.Count > 0)
{
var emitters = new MyGPUEmitter[GPUEmitters.Count];
for (int i = 0; i < GPUEmitters.Count; i++)
{
emitters[i] = GPUEmitters[i];
}
MyRenderProxy.UpdateGPUEmitters(emitters);
GPUEmitters.Clear();
}
if (GPUEmitterPositions.Count > 0)
{
var emitterUids = new uint[GPUEmitterPositions.Count];
var emitterPos = new Vector3D[GPUEmitterPositions.Count];
for (int i = 0; i < GPUEmitterPositions.Count; i++)
{
emitterUids[i] = GPUEmitterPositions[i].GID;
emitterPos[i] = GPUEmitterPositions[i].WorldPosition;
}
MyRenderProxy.UpdateGPUEmittersPosition(emitterUids, emitterPos);
GPUEmitterPositions.Clear();
}
}
public static void TestGPUParticles()
{
if (VRage.Input.MyInput.Static.IsAnyShiftKeyPressed())
{
if (gid0 == 0)
{
gid0 = MyRenderProxy.CreateGPUEmitter();
gid1 = MyRenderProxy.CreateGPUEmitter();
}
var Position = MyTransparentGeometry.Camera.Translation;
var emitters = new MyGPUEmitter[2];
// sparks
emitters[0].GID = gid0;
emitters[0].ParticlesPerSecond = 30000.0f;
emitters[0].Data.Color0 = new Vector4(1.0f, 1.0f, 0.0f, 1f);
emitters[0].Data.Color1 = new Vector4(1.0f, 0.0f, 0.0f, 1f);
emitters[0].Data.Color2 = new Vector4(1.0f, 0.0f, 0.0f, 0.0f);
emitters[0].Data.ColorKey1 = 0.5f;
emitters[0].Data.ColorKey2 = 1.0f;
emitters[0].Data.AlphaKey1 = 0.95f;
emitters[0].Data.AlphaKey2 = 1.0f;
emitters[0].Data.Bounciness = 0.4f;
emitters[0].Data.Velocity = new Vector3(0.0f, 0.0f, -1.0f);
emitters[0].Data.NumParticlesToEmitThisFrame = 0;
emitters[0].Data.ParticleLifeSpan = 9.0f;
emitters[0].Data.Size0 = 0.02f;
emitters[0].Data.Size1 = 0.016f;
emitters[0].Data.Size2 = 0.0f;
emitters[0].Data.SizeKeys1 = 0.95f;
emitters[0].Data.SizeKeys2 = 1.0f;
emitters[0].Data.PositionVariance = new Vector3(0.1f, 0.1f, 0.1f);
emitters[0].Data.VelocityVariance = 0.4f;
emitters[0].Data.RotationVelocity = 0;
emitters[0].Data.Acceleration = new Vector3(0, 0, -0.98f);
emitters[0].Data.StreakMultiplier = 4.0f;
emitters[0].Data.Flags = GPUEmitterFlags.Streaks | GPUEmitterFlags.Collide | GPUEmitterFlags.SleepState;
emitters[0].Data.SoftParticleDistanceScale = 5;
emitters[0].Data.AnimationFrameTime = 1.0f;
emitters[0].Data.OITWeightFactor = 0.3f;
emitters[0].AtlasTexture = "Textures\\Particles\\gpuAtlas0.dds";
emitters[0].AtlasDimension = new Vector2I(2, 1);
emitters[0].AtlasFrameOffset = 1;
emitters[0].AtlasFrameModulo = 1;
emitters[0].WorldPosition = Position + new Vector3D(8.0f, 0.0f, 8.0f);
// smoke
emitters[1].GID = gid1;
emitters[1].ParticlesPerSecond = 100.0f;
emitters[1].Data.Color0 = new Vector4(0.5f, 0.5f, 0.5f, 1.0f);
emitters[1].Data.Color1 = new Vector4(0.6f, 0.6f, 0.65f, 1.0f);
emitters[1].Data.Color2 = new Vector4(0.6f, 0.6f, 0.65f, 0.0f);
emitters[1].Data.ColorKey1 = 0.5f;
emitters[1].Data.ColorKey2 = 1.0f;
emitters[1].Data.AlphaKey1 = 0.95f;
emitters[1].Data.AlphaKey2 = 1.0f;
emitters[1].Data.Velocity = new Vector3(0, 0, 1.0f);
emitters[1].Data.NumParticlesToEmitThisFrame = 0;
emitters[1].Data.ParticleLifeSpan = 150.0f;
emitters[1].Data.Size0 = 0.50f;
emitters[1].Data.Size1 = 2.2f;
emitters[1].Data.SizeKeys1 = 1.0f;
emitters[1].Data.SizeKeys2 = 1.0f;
emitters[1].Data.PositionVariance = new Vector3(0.2f, 0.2f, 0.2f);
emitters[1].Data.VelocityVariance = 0.3f;
emitters[1].Data.RotationVelocity = 100.0f;
emitters[1].Data.Acceleration = new Vector3(0.00707f, 0.00707f, -0.00003f * 9.8f);
emitters[1].Data.Flags = GPUEmitterFlags.Light | GPUEmitterFlags.VolumetricLight;
emitters[1].Data.SoftParticleDistanceScale = 2;
emitters[1].Data.AnimationFrameTime = 1.0f;
emitters[1].Data.OITWeightFactor = 1.0f;
emitters[1].AtlasTexture = "Textures\\Particles\\gpuAtlas1.dds";
emitters[1].AtlasDimension = new Vector2I(2, 1);
emitters[1].AtlasFrameOffset = 0;
emitters[1].AtlasFrameModulo = 1;
emitters[1].WorldPosition = Position + new Vector3D(2.0f, 0.0f, 1.0f);
MyRenderProxy.UpdateGPUEmitters(emitters);
}
}
public static void DrawEnd()
{
if (GPUEmitters.Count > 0)
{
var emitters = new MyGPUEmitter[GPUEmitters.Count];
for (int i = 0; i < GPUEmitters.Count; i++)
{
emitters[i] = GPUEmitters[i];
}
MyRenderProxy.UpdateGPUEmitters(emitters);
GPUEmitters.Clear();
}
if (GPUEmitterTransforms.Count > 0)
{
var emitterUids = new uint[GPUEmitterTransforms.Count];
var emitterTransforms = new MatrixD[GPUEmitterTransforms.Count];
for (int i = 0; i < GPUEmitterTransforms.Count; i++)
{
emitterUids[i] = GPUEmitterTransforms[i].GID;
emitterTransforms[i] = GPUEmitterTransforms[i].Transform;
}
MyRenderProxy.UpdateGPUEmittersTransform(emitterUids, emitterTransforms);
GPUEmitterTransforms.Clear();
}
}