public ParticleRenderer()
{
// create the model, which contains the textures that represent the particles.
components.Add(model = new DefaultParticleModel(particleArrayWidth, particleArrayHeight));
// create the render target, which is used to write to the model
components.Add(renderTarget = new PosColRenderTarget(particleArrayWidth, particleArrayHeight)
{
DrawOrder = 1,
IsFinalOutput = false,
SetBuffers = (rt) =>
{
rt.SetOutput(0, model.ParticlePositionWrite);
rt.SetOutput(1, model.ParticleColourWrite);
}
});
// Add operator(s) to renderTarget. The operators write to the render target to alter the particles.
renderTarget.Add(operator1 = new ParticleOperator()
{
IsFinalOutput = true,
TextureBinds = () =>
{
if (frameData != null)
{
frameData.GlobalTextures.SpectrumTex.Bind(TextureUnit.Texture0);
frameData.GlobalTextures.AudioDataTex.Bind(TextureUnit.Texture1);
model.ParticlePositionRead.Bind(TextureUnit.Texture2);
model.ParticlePositionPrevious.Bind(TextureUnit.Texture3);
model.ParticleColourRead.Bind(TextureUnit.Texture4);
}
},
SetShaderUniforms = (sp) =>
{
if (sp != null && frameData != null)
{
sp
.SetUniform("time", (float)(frameData.Time))
.SetUniform("deltaTime", deltaTime)
.SetUniform("spectrumTex", 0)
.SetUniform("audioDataTex", 1)
.SetUniform("particlePosTex", 2)
.SetUniform("particlePosPrevTex", 3)
.SetUniform("particleColTex", 4)
.SetUniform("currentPosition", frameData.GlobalTextures.SamplePositionRelative)
.SetUniform("currentPositionEst", frameData.GlobalTextures.EstimatedSamplePositionRelative);
}
}
});
// create the renderer, which renders GL_POINTS using vertices that point to texels in the model textures.
components.Add(renderer = new ColourParticleRenderer("Particles/particles_col.vert.glsl", "Particles/particles_col.frag.glsl", particleArrayWidth, particleArrayHeight)
{
DrawOrder = 2,
IsFinalOutput = true,
ParticlePositionTextureFunc = () => model.ParticlePositionWrite,
ParticleColourTextureFunc = () => model.ParticleColourWrite
});
ProjectionMatrix = Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(60f), 16f / 9f, 0.0001f, 10f);
ViewMatrix = Matrix4.LookAt(new Vector3(0f, 0f, -1f), new Vector3(0f, 0f, 0f), new Vector3(0f, 1f, 0f));
ModelMatrix = Matrix4.Identity;
}
public ParticleTestBench() : base(800, 600, GraphicsMode.Default, "Particles or summin or nuttin")
{
VSync = VSyncMode.Off;
Load += ParticleTestBench_Load;
Unload += ParticleTestBench_Unload;
UpdateFrame += ParticleTestBench_UpdateFrame;
RenderFrame += ParticleTestBench_RenderFrame;
Resize += ParticleTestBench_Resize;
// set default shader loader
ShaderProgram.DefaultLoader = new OpenTKExtensions.Loaders.MultiPathFileSystemLoader(SHADERPATH);
//OpenTK.Input.Keyboard.GetState()
components.Add(camera = new WalkCamera()
{
FOV = 75.0f,
ZFar = 10.0f,
ZNear = 0.001f,
MovementSpeed = 0.0001f,
LookMode = WalkCamera.LookModeEnum.Mouse1,
Position = new Vector3(0f, 0f, 0f),
EyeHeight = 0f
}, 1);
components.Add(resources = new CommonResources());
// Particle model
components.Add(model = new MotionParticleModel(particleArrayWidth, particleArrayHeight));
// Particle render target
components.Add(particleRenderTarget = new PosVelColRenderTarget(particleArrayWidth, particleArrayHeight)
{
DrawOrder = 1,
SetBuffers = (rt) =>
{
rt.SetOutput(0, model.ParticlePositionWrite);
rt.SetOutput(1, model.ParticleVelocityWrite);
rt.SetOutput(2, model.ParticleColourWrite);
}
});
// particle operator
particleRenderTarget.Add(new OperatorTest());
/*
* particleRenderTarget.Add(particleOperator = new RaymarchOperator()
* {
* TextureBinds = () =>
* {
* model.ParticlePositionRead.Bind(TextureUnit.Texture0);
* model.ParticleVelocityRead.Bind(TextureUnit.Texture1);
* model.ParticleColourRead.Bind(TextureUnit.Texture2);
* },
* SetShaderUniforms = (sp) =>
* {
* sp.SetUniform("time", (float)timer.Elapsed.TotalSeconds);
* sp.SetUniform("particlePositionTexture", 0);
* sp.SetUniform("particleVelocityTexture", 1);
* sp.SetUniform("particleColourTexture", 2);
* }
* });*/
// Render particles
components.Add(particleRenderer = new ColourParticleRenderer(particleArrayWidth, particleArrayHeight)
{
DrawOrder = 2,
ParticlePositionTextureFunc = () => model.ParticlePositionWrite,
ParticleColourTextureFunc = () => model.ParticleColourWrite
});
}
