public float AtmosphereHeightAtPoint(Vector3 point) { if (atmosphereGameObject != null) { point = atmosphereGameObject.transform.InverseTransformPoint(point); return(SGT_Helper.RemapClamped(SurfaceEquatorialRadius / AtmosphereEquatorialRadius, 1.0f, point.magnitude, 0.0f, 1.0f)); } return(0.0f); }
private void StepScale() { if (parent == null) { parent = SGT_Helper.GetComponentUpwards <SGT_DebrisSpawner>(gameObject); } if (parent != null) { var position = SGT_Helper.GetPosition(parent.DebrisCentre); var distance = (position - transform.position).magnitude; var scaleMul = 1.0f - SGT_Helper.RemapClamped(parent.DebrisContainerInnerRadius, parent.DebrisContainerRadius, distance, 0.0f, 1.0f); SGT_Helper.SetLocalScale(transform, SGT_Helper.NewVector3(scale * scaleMul)); } }
public Vector3 ForceAtPoint(Vector3 xyz) { var newForce = transform.position - xyz; if (newForce.sqrMagnitude > 0.0f) { switch (gravitySourceType) { case GravityType.Linear: { newForce = newForce.normalized * SGT_Helper.RemapClamped(gravitySourceRadius, gravitySourceRadius + gravitySourceHeight, newForce.magnitude, 0.0f, gravitySourceForce); } break; case GravityType.Exponential: { newForce = (newForce / newForce.sqrMagnitude) * gravitySourceForce; } break; } } return(newForce); }
private void UpdateShader() { var starDirection = planetLightSource != null ? (planetLightSource.transform.position - transform.position).normalized : Vector3.up; var lightSourcePosition = planetLightSource != null ? planetLightSource.transform.position : Vector3.zero; var transformPosition = transform.position; var uniformScale = UniformScale; var observerPosition = planetObserver != null ? planetObserver.transform.position : Vector3.zero; var distance = (observerPosition - transformPosition).magnitude; float maxSurfaceDepth, maxAtmosphereDepth; SGT_Helper.CalculateHorizonAtmosphereDepth(surfaceRadius * uniformScale, AtmosphereRadius * uniformScale, distance, out maxSurfaceDepth, out maxAtmosphereDepth); // Common shader variables SGT_ShaderHelper.SetVector(surfaceMaterials, "centrePosition", transformPosition); SGT_ShaderHelper.SetVector(surfaceMaterials, "starDirection", starDirection); if (surfaceTextureNormal != null) { var starDirectionM = surfaceGameObject.transform.worldToLocalMatrix.MultiplyVector(starDirection).normalized; SGT_ShaderHelper.SetVector(surfaceMaterials, "starDirectionM", starDirectionM); } if (atmosphereMaterial != null) { var altitudeUnclamped = distance - surfaceRadius * uniformScale; var altitude = Mathf.Clamp(altitudeUnclamped, 0.0f, atmosphereHeight * uniformScale); var atmoAlt = SGT_Helper.RemapClamped(atmosphereHeight * uniformScale * atmosphereSkyAltitude, atmosphereHeight * uniformScale, altitude, 0.0f, 1.0f); SGT_ShaderHelper.SetFloat(surfaceMaterials, "maxDepth", maxSurfaceDepth * (1.0f - atmosphereFog)); // FOG atmosphereMaterial.SetFloat("maxDepth", maxAtmosphereDepth); atmosphereMaterial.SetVector("centrePosition", transformPosition); atmosphereMaterial.SetVector("starDirection", starDirection); atmosphereMaterial.SetFloat("atmosphereFalloff", Mathf.SmoothStep(atmosphereFalloffInside, atmosphereFalloffOutside, atmoAlt)); if (atmosphereScattering == true) { SGT_ShaderHelper.SetVector(surfaceMaterials, "starPosition", lightSourcePosition); atmosphereMaterial.SetVector("starPosition", lightSourcePosition); } } if (cloudsMaterials != null) { SGT_ShaderHelper.SetVector(cloudsMaterials, "centrePosition", transformPosition); SGT_ShaderHelper.SetVector(cloudsMaterials, "starDirection", starDirection); } if (shadow == true) { var shadowMatrix = Matrix4x4.identity; switch (shadowCasterType) { case SGT_ShadowOccluder.Planet: { if (shadowCasterGameObject != null) { shadowMatrix = SGT_Helper.CalculateSphereShadowMatrix(ShadowCasterRadiusOuter, shadowCasterGameObject.transform.position, lightSourcePosition, transformPosition, uniformScale); } } break; case SGT_ShadowOccluder.Ring: { shadowMatrix = SGT_Helper.CalculateCircleShadowMatrix(ShadowCasterRadiusOuter, transform.position, transform.up, lightSourcePosition, transformPosition, uniformScale); } break; } SGT_ShaderHelper.SetMatrix(surfaceMaterials, "shadowMatrix", shadowMatrix); if (atmosphereMaterial != null) { atmosphereMaterial.SetMatrix("shadowMatrix", shadowMatrix); } if (cloudsMaterials != null) { SGT_ShaderHelper.SetMatrix(cloudsMaterials, "shadowMatrix", shadowMatrix); } } // Uncommon shader variables if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.ShadowSettings) == true) { var cutoff = ShadowCasterRadiusInner / ShadowCasterRadiusOuter; var invCutoff = SGT_Helper.Reciprocal(1.0f - cutoff); var shadowValues = new Vector3(cutoff, invCutoff, 1.0f + ShadowCasterRadiusOuter); SGT_ShaderHelper.SetVector(surfaceMaterials, "shadowValues", shadowValues); if (atmosphereMaterial != null) { atmosphereMaterial.SetVector("shadowValues", shadowValues); } if (cloudsMaterials != null) { SGT_ShaderHelper.SetVector(cloudsMaterials, "shadowValues", shadowValues); } } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureDay) == true) { for (var i = 0; i < surfaceMaterials.Length; i++) { surfaceMaterials[i].SetTexture("dayTexture", surfaceTextureDay.GetTexture((CubemapFace)i)); } } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureNight) == true) { for (var i = 0; i < surfaceMaterials.Length; i++) { surfaceMaterials[i].SetTexture("nightTexture", surfaceTextureNight.GetTexture((CubemapFace)i)); } } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureNormal) == true) { for (var i = 0; i < surfaceMaterials.Length; i++) { surfaceMaterials[i].SetTexture("normalTexture", surfaceTextureNormal.GetTexture((CubemapFace)i)); } } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureSpecular) == true) { for (var i = 0; i < surfaceMaterials.Length; i++) { surfaceMaterials[i].SetTexture("specularTexture", surfaceTextureSpecular.GetTexture((CubemapFace)i)); } } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceSpecularSettings) == true) { SGT_ShaderHelper.SetFloat(surfaceMaterials, "specularPower", surfaceSpecularPower * surfaceSpecularPower); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureDetail) == true) { SGT_ShaderHelper.SetTexture(surfaceMaterials, "detailTexture", surfaceTextureDetail); SGT_ShaderHelper.SetFloat(surfaceMaterials, "detailRepeat", surfaceDetailRepeat); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureLighting) == true) { SGT_ShaderHelper.SetTexture(surfaceMaterials, "lightingTexture", surfaceLightingTexture); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureShadow) == true) { SGT_ShaderHelper.SetTexture(surfaceMaterials, "shadowTexture", shadowTextureSurface); } if (atmosphereMaterial != null) { SGT_ShaderHelper.SetFloat(surfaceMaterials, "atmosphereRadius", AtmosphereRadius * uniformScale); SGT_ShaderHelper.SetFloat(surfaceMaterials, "atmosphereFalloff", atmosphereFalloffSurface); SGT_ShaderHelper.SetFloat(surfaceMaterials, "surfaceRadius", surfaceRadius * uniformScale); SGT_ShaderHelper.SetFloat(surfaceMaterials, "atmosphereHeight", atmosphereHeight * uniformScale); if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.SurfaceTextureAtmosphere) == true) { SGT_ShaderHelper.SetTexture(surfaceMaterials, "atmosphereTexture", atmosphereSurfaceTexture); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.AtmosphereTexture) == true) { atmosphereMaterial.SetTexture("atmosphereTexture", atmosphereTexture); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.AtmosphereTextureShadow) == true) { atmosphereMaterial.SetTexture("shadowTexture", shadowTextureAtmosphere); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.ScatteringSettings) == true) { var mie = -(1.0f - 1.0f / Mathf.Pow(10.0f, atmosphereScatteringMie * 5.0f)); var mie4 = new Vector4(mie * 2.0f, 1.0f - mie * mie, 1.0f + mie * mie, 1.5f); var ray2 = new Vector2(0.0f, atmosphereScatteringRayleigh); SGT_ShaderHelper.SetVector(surfaceMaterials, "rayleighValues", ray2); atmosphereMaterial.SetVector("mieValues", mie4); atmosphereMaterial.SetVector("rayleighValues", ray2); } } if (cloudsMaterials != null) { if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.CloudsTextureShadow) == true) { SGT_ShaderHelper.SetTexture(cloudsMaterials, "shadowTexture", shadowTextureClouds); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.CloudsTexture) == true) { for (var i = 0; i < cloudsMaterials.Length; i++) { cloudsMaterials[i].SetTexture("cloudsTexture", cloudsTexture.GetTexture((CubemapFace)i)); } } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.CloudsTextureLighting) == true) { SGT_ShaderHelper.SetTexture(cloudsMaterials, "lightingTexture", cloudsLightingTexture); } if (SGT_Helper.FlagIsSet(updateShader, ShaderFlags.CloudsFalloffSettings) == true) { SGT_ShaderHelper.SetFloat(cloudsMaterials, "falloff", cloudsFalloff * cloudsFalloff); } } updateShader = 0; }