private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (RaymarchMaterial == null)
{
Graphics.Blit(source, destination);
return;
}
RaymarchMaterial.SetVector("_lightDir", directionalLight ? directionalLight.forward : Vector3.down);
RaymarchMaterial.SetMatrix("_CamFrustum", CamFrustum(Camera));
RaymarchMaterial.SetMatrix("_CamToWorld", Camera.cameraToWorldMatrix);
RaymarchMaterial.SetFloat("_maxDistance", maxDistance);
RaymarchMaterial.SetVector("_sphere1", new Vector4(spherePos.x, spherePos.y, spherePos.z, sphereRadius));
RenderTexture.active = destination;
RaymarchMaterial.SetTexture("_MainTex", source);
GL.PushMatrix();
GL.LoadOrtho();
RaymarchMaterial.SetPass(0);
GL.Begin(GL.QUADS);
//BL
GL.MultiTexCoord2(0, 0f, 0f);
GL.Vertex3(0f, 0f, 3f); // third arg corresponds to the row index of BL set in CamFrustum method, and is retrieved by the shader's vert function
//BR
GL.MultiTexCoord2(0, 1f, 0f);
GL.Vertex3(1f, 0f, 2f);
//TR
GL.MultiTexCoord2(0, 1f, 1f);
GL.Vertex3(1f, 1f, 1f);
//TL
GL.MultiTexCoord2(0, 0f, 1f);
GL.Vertex3(0f, 1f, 0f);
GL.End();
GL.PopMatrix();
}
private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (!RaymarchMaterial)
{
Graphics.Blit(source, destination);
return;
}
//Then we are testing out the new raymarching data input Texture3D so need to set up the shader details differently:
//Camera Setup
RaymarchMaterial.SetMatrix("_CamFrustum", CamFrustum(RaymarchingCamera));
RaymarchMaterial.SetMatrix("_CamToWorld", RaymarchingCamera.cameraToWorldMatrix);
//Raymarching setup
RaymarchMaterial.SetInt("_MaxIterations", _MaxIterations);
RaymarchMaterial.SetFloat("_MaxDistance", _MaxDistance);
RaymarchMaterial.SetFloat("_Accuracy", _Accuracy);
//Light
RaymarchMaterial.SetVector("_LightDirection", _DirectionalLight ? _DirectionalLight.forward : Vector3.down);
RaymarchMaterial.SetColor("_LightColour", _LightColour);
RaymarchMaterial.SetFloat("_LightIntensity", _LightIntensity);
//Shadow
RaymarchMaterial.SetFloat("_ShadowIntensity", _ShadowIntensity);
RaymarchMaterial.SetVector("_ShadowDistance", _ShadowDistance);
RaymarchMaterial.SetFloat("_ShadowPenumbra", _ShadowPenumbra);
//AO
RaymarchMaterial.SetFloat("_AmbientOcclusionIntensity", _AmbientOcclusionIntensity);
RaymarchMaterial.SetFloat("_AmbientOcclusionStepSize", _AmbientOcclusionStepSize);
RaymarchMaterial.SetInt("_AmbientOcclusionIterations", _AmbientOcclusionIterations);
//Reflections
RaymarchMaterial.SetFloat("_ReflectionIntensity", _ReflectionIntensity);
RaymarchMaterial.SetFloat("_EnvironmentReflectionIntensity", _EnvironmentReflectionIntensity);
RaymarchMaterial.SetInt("_ReflectionCount", _ReflectionCount);
RaymarchMaterial.SetTexture("_ReflectionCube", _ReflectionCube);
//Refactoring Scene Colour
RaymarchMaterial.SetColor("_GroundColour", _GroundColour);
RaymarchMaterial.SetFloat("_ColourIntensity", _ColourIntensity);
RaymarchMaterial.SetColor("_TestColour", _SphereColour);
//SDF
RaymarchMaterial.SetFloat("_SphereSmooth", _SphereSmooth);
RaymarchMaterial.SetBuffer("_SphereBuffer", SphereBuffer);
RaymarchMaterial.SetInt("_SphereBufferLength", SphereBuffer.count);
RenderTexture.active = destination;
RaymarchMaterial.SetTexture("_MainTex", source);
GL.PushMatrix();
GL.LoadOrtho();
RaymarchMaterial.SetPass(0);
GL.Begin(GL.QUADS);
//bottomLeft
GL.MultiTexCoord2(0, 0.0f, 0.0f);
GL.Vertex3(0.0f, 0.0f, 3.0f);
//bottomRight
GL.MultiTexCoord2(0, 1.0f, 0.0f);
GL.Vertex3(1.0f, 0.0f, 2.0f);
//topRight
GL.MultiTexCoord2(0, 1.0f, 1.0f);
GL.Vertex3(1.0f, 1.0f, 1.0f);
//topLeft
GL.MultiTexCoord2(0, 0.0f, 1.0f);
GL.Vertex3(0.0f, 1.0f, 0.0f);
GL.End();
GL.PopMatrix();
}
private void OnRenderImage(RenderTexture src, RenderTexture dest)
{
if (!_shader)
{
_shader = Shader.Find("CloudRendering/RaymarchShader");
}
if (!RaymarchMaterial)
{
Graphics.Blit(src, dest);
return;
}
RaymarchMaterial.SetMatrix("_CamFrustum", CalculateCameraFrustum(Cam));
RaymarchMaterial.SetMatrix("_CamToWorldMatrix", Cam.cameraToWorldMatrix);
RaymarchMaterial.SetVector("_CloudLayerHeight", new Vector4(cloudLayer.bottomHeight, cloudLayer.topHeight, 0, 0));
RaymarchMaterial.SetFloat("_g_c", globalCloudCoverage);
RaymarchMaterial.SetFloat("_g_d", globalCloudDensity);
RaymarchMaterial.SetTexture("_WeatherMap", WeatherMap);
RaymarchMaterial.SetVector("_WeatherMap_offset", weatherMapST.offset);
RaymarchMaterial.SetFloat("_WeatherMap_scale", weatherMapST.scale);
RaymarchMaterial.SetTexture("_BlueNoise", BlueNoise);
RaymarchMaterial.SetTexture("_ShapeNoise", ShapeNoise);
RaymarchMaterial.SetFloat("_ShapeNoiseScale", shapeNoiseScale);
RaymarchMaterial.SetTexture("_DetailNoise", DetailNoise);
RaymarchMaterial.SetFloat("_DetailNoiseScale", detailNoiseScale);
// Lighting parameters
RaymarchMaterial.SetFloat("_cloud_inscatter", lightingParameters.cloudInScatter);
RaymarchMaterial.SetFloat("_cloud_outscatter", lightingParameters.cloudOutScatter);
RaymarchMaterial.SetFloat("_cloud_beer", lightingParameters.beer);
RaymarchMaterial.SetFloat("_cloud_in_vs_outscatter", lightingParameters.inVsOutScatter);
RaymarchMaterial.SetFloat("_cloud_silver_intensity", lightingParameters.silverLiningIntensity);
RaymarchMaterial.SetFloat("_cloud_silver_exponent", lightingParameters.silverLiningExponent);
RaymarchMaterial.SetFloat("_cloud_outscatter_ambient", lightingParameters.ambientOutScatter);
RaymarchMaterial.SetFloat("_cloud_attuention_clampval", lightingParameters.attuentionClampVal);
RaymarchMaterial.SetFloat("_cloud_ambient_minimum", lightingParameters.minimumAttenuationAmbient);
RaymarchMaterial.SetFloat("_step_increase_rate", stepIncreaseRate);
RaymarchMaterial.SetFloat("_step_size_inside_cloud", stepSizeInsideCloud);
RaymarchMaterial.SetFloat("_step_size_outside_cloud", stepSizeOutsideCloud);
RaymarchMaterial.SetInt("_groundTruthMode", groundTruthMode ? 1 : 0);
RaymarchMaterial.SetFloat("_groundTruthThreshold", groundTruthThreshold);
RenderTexture.active = dest;
RaymarchMaterial.SetTexture("_MainTex", src);
GL.PushMatrix();
GL.LoadOrtho();
RaymarchMaterial.SetPass(0);
GL.Begin(GL.QUADS);
GL.MultiTexCoord2(0, 0.0f, 0.0f);
GL.Vertex3(0.0f, 0.0f, 3.0f);
GL.MultiTexCoord2(0, 1.0f, 0.0f);
GL.Vertex3(1.0f, 0.0f, 2.0f);
GL.MultiTexCoord2(0, 1.0f, 1.0f);
GL.Vertex3(1.0f, 1.0f, 1.0f);
GL.MultiTexCoord2(0, 0.0f, 1.0f);
GL.Vertex3(0.0f, 1.0f, 0.0f);
GL.End();
GL.PopMatrix();
}
private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (!RaymarchMaterial)
{
Graphics.Blit(source, destination);
return;
}
_raymatchMat.SetMatrix("_CamFrustum", CamFrustum(Camera));
_raymatchMat.SetMatrix("_CamToWorld", Camera.cameraToWorldMatrix);
_raymatchMat.SetFloat("_MaxIterations", maxIterations);
_raymatchMat.SetFloat("_Accuracy", accuracy);
_raymatchMat.SetFloat("_Repetation", repetation);
_raymatchMat.SetFloat("_LightIntensity", directionalLight ? directionalLight.intensity : 0.5f);
_raymatchMat.SetFloat("_ShadowIntensity", directionalLight ? directionalLight.shadowStrength : 0.5f);
_raymatchMat.SetFloat("_ShadowPenumbra", shadowPenumbra);
_raymatchMat.SetFloat("_MaxDistance", maxDistance);
_raymatchMat.SetFloat("_Box1Round", box1Round);
_raymatchMat.SetFloat("_BoxSphereSmooth", boxSphereSmooth);
_raymatchMat.SetFloat("_SphereIntersectionSmooth", sphereIntersectSmooth);
_raymatchMat.SetVector("_LightDir", directionalLight ? directionalLight.transform.forward : Vector3.one);
_raymatchMat.SetVector("_Sphere1", sphere1);
_raymatchMat.SetVector("_Sphere2", sphere2);
_raymatchMat.SetVector("_Box1", box1);
_raymatchMat.SetVector("_ShadowDistance", shadowDistance);
_raymatchMat.SetColor("_MainColor", mainColor);
_raymatchMat.SetColor("_LightCol", directionalLight ? directionalLight.color : Color.white);
//AO
_raymatchMat.SetFloat("_AoStepSize", aoStepSize);
_raymatchMat.SetFloat("_AoIntensity", aoIntensity);
_raymatchMat.SetInt("_AoIterations", aoIterations);
RenderTexture.active = destination;
_raymatchMat.SetTexture("_MainTex", source);
_raymatchMat.SetTexture("_NoiseTex", noiseText);
GL.PushMatrix();
GL.LoadOrtho();
RaymarchMaterial.SetPass(0);
GL.Begin(GL.QUADS);
//BL
GL.MultiTexCoord2(0, 0.0f, 0.0f);
GL.Vertex3(0.0f, 0.0f, 3.0f);
//BR
GL.MultiTexCoord2(0, 1.0f, 0.0f);
GL.Vertex3(1.0f, 0.0f, 2.0f);
//TR
GL.MultiTexCoord2(0, 1.0f, 1.0f);
GL.Vertex3(1.0f, 1.0f, 1.0f);
//TL
GL.MultiTexCoord2(0, 0.0f, 1.0f);
GL.Vertex3(0.0f, 1.0f, 0.0f);
GL.End();
GL.PopMatrix();
}