void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (!EffectMaterial)
{
Graphics.Blit(source, destination);
return;
}
EffectMaterial.SetColor("_Color1", color1);
EffectMaterial.SetColor("_Color2", color2);
EffectMaterial.SetColor("_Color3", color3);
EffectMaterial.SetColor("_Color4", color4);
EffectMaterial.SetColor("_Color5", color5);
EffectMaterial.SetVector("_LightPos", SunLight.position);
EffectMaterial.SetFloat("_DrawDistance", _RaymarchDrawDistance);
EffectMaterial.SetVector("_CameraWP", CurrentCamera.transform.position);
EffectMaterial.SetFloat("_FovX", CurrentCamera.fieldOfView * Mathf.Deg2Rad);
EffectMaterial.SetVector("_CamForward", CurrentCamera.transform.forward.normalized);
EffectMaterial.SetVector("_CamUp", CurrentCamera.transform.up.normalized);
EffectMaterial.SetVector("_CamRight", CurrentCamera.transform.right.normalized);
EffectMaterial.SetFloat("_AspectRatio", CurrentCamera.aspect);
EffectMaterial.SetFloat("_LightStrength", lightStrength);
Graphics.Blit(source, destination, EffectMaterial);
}
void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (!EffectMaterial)
{
Graphics.Blit(source, destination); // do nothing
return;
}
// Set any custom shader variables here. For example, you could do:
// EffectMaterial.SetFloat("_MyVariable", 13.37f);
// This would set the shader uniform _MyVariable to value 13.37
EffectMaterial.SetVector("_LightDir", lightTransform ? lightTransform.forward : Vector3.down);
//// Construct a Model Matrix for the Torus
//Matrix4x4 MatTorus = Matrix4x4.TRS(
// Vector3.right * Mathf.Sin(Time.time) * 5,
// Quaternion.identity,
// Vector3.one);
//MatTorus *= Matrix4x4.TRS(
// Vector3.zero,
// Quaternion.Euler(new Vector3(0, 0, (Time.time * 200) % 360)),
// Vector3.one);
//// Send the torus matrix to our shader
//EffectMaterial.SetMatrix("_MatTorus_InvModel", MatTorus.inverse);
EffectMaterial.SetColor("_Color", mainColor);
if (matColorRamp)
{
EffectMaterial.SetTexture("_ColorRamp_Material", matColorRamp);
}
if (perfColorRamp)
{
EffectMaterial.SetTexture("_ColorRamp_PerfMap", perfColorRamp);
}
if (densColorRamp)
{
EffectMaterial.SetTexture("_ColorRamp_Density", densColorRamp);
}
EffectMaterial.SetFloat("_DrawDistance", rayMarchMaxDist);
if (EffectMaterial.IsKeywordEnabled("DEBUG_PERFORMANCE") != debugPerformance)
{
if (debugPerformance)
{
EffectMaterial.EnableKeyword("DEBUG_PERFORMANCE");
}
else
{
EffectMaterial.DisableKeyword("DEBUG_PERFORMANCE");
}
}
EffectMaterial.SetMatrix("_FrustumCornersES", GetFrustumCorners(CurrentCamera));
EffectMaterial.SetMatrix("_CameraInvViewMatrix", CurrentCamera.cameraToWorldMatrix);
EffectMaterial.SetVector("_CameraWS", CurrentCamera.transform.position);
CustomGraphicsBlit(source, destination, EffectMaterial, 0);
}
private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (!EffectMaterial)
{
Graphics.Blit(source, destination);
return;
}
EffectMaterial.SetColor("_ringColor", ringColor);
EffectMaterial.SetFloat("radius", radius);
EffectMaterial.SetFloat("thickness", thickness);
EffectMaterial.SetVector("ringCenter", sourceTransform.position);
EffectMaterial.SetVector("cameraPositionWS", MainCamera.transform.position);
EffectMaterial.SetMatrix("cameraToWorldMatrix", MainCamera.cameraToWorldMatrix);
EffectMaterial.SetMatrix("_FrustumCornersES", GetFrustumCorners(MainCamera));
CustomGraphicsBlit(source, destination, EffectMaterial, 0);
}
void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (!EffectMaterial)
{
Graphics.Blit(source, destination); // do nothing
return;
}
// pass frustum rays to shader
EffectMaterial.SetMatrix("_FrustumCornersES", GetFrustumCorners(CurrentCamera));
EffectMaterial.SetMatrix("_CameraInvViewMatrix", CurrentCamera.cameraToWorldMatrix);
EffectMaterial.SetVector("_CameraWS", CurrentCamera.transform.position);
EffectMaterial.SetFloat("_Interpolator", t);
EffectMaterial.SetMatrixArray("_Points", points.Select(x => Matrix4x4.TRS(x.position, x.rotation, x.localScale).inverse).ToArray());
EffectMaterial.SetInt("_Points_size", points.Count);
EffectMaterial.SetColor("_LightColor", lightColor);
EffectMaterial.SetColor("_ShadowColor", shadowColor);
CustomGraphicsBlit(source, destination, EffectMaterial, 0); // use given effect shader as image effect
}
private void OnRenderImage(RenderTexture src, RenderTexture dest)
{
// if for some reason there is no material or if there are no Objects, do nothing
if (!EffectMaterial || _objs == null || _objs.Count == 0)
{
Graphics.Blit(src, dest);
return;
}
// sort the Objects by depth
_objs.Sort((x, y) => (int)Mathf.Clamp(CurrentCamera.transform.InverseTransformPoint(y.transform.position).z - CurrentCamera.transform.InverseTransformPoint(x.transform.position).z, -1, 1));
// set general shader values for camera
EffectMaterial.SetMatrix("_FrustumCornersES", GetFrustumCorners(CurrentCamera));
EffectMaterial.SetMatrix("_CameraInvViewMatrix", CurrentCamera.cameraToWorldMatrix);
EffectMaterial.SetVector("_CameraWS", CurrentCamera.transform.position);
// set general shader values for raymarching
EffectMaterial.SetVector("_RaymarchingParams", new Vector4(StepCount, StepCountInsideVolume, StepSize, DrawDist));
// create to temporary Render textures as buffers
RenderTexture temp0 = RenderTexture.GetTemporary(src.width, src.height, 0, src.format);
RenderTexture temp1 = RenderTexture.GetTemporary(src.width, src.height, 0, src.format);
// this is a variable for storing which buffer we last used
int lastUsed = 0;
// render all objects
for (int i = 0; i < _objs.Count; ++i)
{
VolumetricObject obj = _objs[i];
// set shader values that are type dependend
VolumetricObject.Types t = obj.Type;
switch (t)
{
case VolumetricObject.Types.BOX:
EffectMaterial.SetInt("_Type", 0);
EffectMaterial.SetVector("_BoxDimensions", obj.Dimensions * 0.5f);
break;
case VolumetricObject.Types.SPHERE:
EffectMaterial.SetInt("_Type", 1);
EffectMaterial.SetFloat("_SphereRad", obj.Radius);
break;
case VolumetricObject.Types.CAPSULE:
EffectMaterial.SetInt("_Type", 2);
EffectMaterial.SetMatrix("_CapsuleBounds", obj.CapsuleParams);
break;
}
// set non type dependent per Object values
EffectMaterial.SetColor("_Color", obj.Color);
Color dc = obj.DenseColor;
dc.a = obj.UseDenseColor ? 1 : 0;
EffectMaterial.SetColor("_DenseColor", dc);
EffectMaterial.SetVector("_FogOptions", new Vector4(obj.Density, (float)obj.Falloff, (float)obj.BlendMode, 0));
EffectMaterial.SetMatrix("_Noise_STO", obj.NoiseSTO);
EffectMaterial.SetMatrix("_InvModel", obj.transform.localToWorldMatrix.inverse);
// render the Object by alternating between buffers
if (i == 0)
{
CustomGraphicsBlit(src, temp0, EffectMaterial, 0);
lastUsed = 0;
}
else if (i % 2 == 0)
{
CustomGraphicsBlit(temp1, temp0, EffectMaterial, 0);
lastUsed = 0;
}
else
{
CustomGraphicsBlit(temp0, temp1, EffectMaterial, 0);
lastUsed = 1;
}
}
// render final render texture
Graphics.Blit(lastUsed == 1 ? temp1 : temp0, dest);
// clean up buffers
RenderTexture.ReleaseTemporary(temp0);
RenderTexture.ReleaseTemporary(temp1);
}
