private void Awake()
{
s_instance = this;
cam = GetComponent <Camera>();
compositeResultBufferMtrl = new Material(Shader.Find("Hidden/JCDeferredShading/CompositeResultBuffer"));
ssrMtrl = new Material(Shader.Find("Hidden/JCDeferredShading/ScreenSpaceReflection"));
frontFaceDepthShader = Shader.Find("Hidden/JCDeferredShading/FrontFaceDepth");
backFaceDepthShader = Shader.Find("Hidden/JCDeferredShading/BackFaceDepth");
shaderPropId_diffuseBuffer = Shader.PropertyToID("_DiffuseBuffer");
shaderPropId_normalBuffer = Shader.PropertyToID("_NormalBuffer");
shaderPropId_positionBuffer = Shader.PropertyToID("_PositionBuffer");
shaderPropId_resultBuffer = Shader.PropertyToID("_ResultBuffer");
shaderPropId_ssrBuffer = Shader.PropertyToID("_SSRBuffer");
shaderPropId_doubleFaceDepthBuffer = Shader.PropertyToID("_DoubleFaceDepthBuffer");
shaderPropId_ssrVMatrix = Shader.PropertyToID("_SSR_V_MATRIX");
shaderPropId_ssrPMatrix = Shader.PropertyToID("_SSR_P_MATRIX");
shaderPropId_screenPixelSize = Shader.PropertyToID("_ScreenPixelSize");
shaderPropId_dirLightDir = Shader.PropertyToID("_DirLightDir");
shaderPropId_dirLightColor = Shader.PropertyToID("_DirLightColor");
shaderPropId_pointLightPos = Shader.PropertyToID("_PointLightPos");
shaderPropId_pointLightColor = Shader.PropertyToID("_PointLightColor");
shaderPropId_pointLightRange = Shader.PropertyToID("_PointLightRange");
mrtGBuffer = new JCDSRenderTexture(
3, Screen.width, Screen.height,
JCDSRenderTexture.ValueToMask(null),
RenderTextureFormat.ARGBHalf, FilterMode.Point, false
);
resultRT = new JCDSRenderTexture(
1, Screen.width, Screen.height,
JCDSRenderTexture.ValueToMask(new bool[] { true }),
RenderTextureFormat.ARGB32, FilterMode.Point, false
);
ssrRT = new JCDSRenderTexture(
1, Screen.width, Screen.height,
JCDSRenderTexture.ValueToMask(null),
RenderTextureFormat.ARGB32, FilterMode.Point, false
);
doubleFaceDepthRT = new JCDSRenderTexture(
1, Screen.width, Screen.height,
JCDSRenderTexture.ValueToMask(new bool[] { true }),
RenderTextureFormat.ARGBFloat, FilterMode.Point, false
);
CollectLights();
CreateDoubleFaceDepthCamera();
}
public static void SetMultipleRenderTargets(Camera camera, JCDSRenderTexture colorBuffers, JCDSRenderTexture depthBuffer, int depthBufferIndex)
{
if (camera == null || colorBuffers == null || depthBuffer == null)
{
throw new System.ArgumentNullException();
}
camera.SetTargetBuffers(colorBuffers.GetColorBuffers(), depthBuffer.GetDepthBuffer(depthBufferIndex));
}
private void OnPreRender()
{
mrtGBuffer.ResetSize(Screen.width, Screen.height);
resultRT.ResetSize(Screen.width, Screen.height);
ssrRT.ResetSize(Screen.width, Screen.height);
doubleFaceDepthRT.ResetSize(Screen.width, Screen.height);
JCDSRenderTexture.StoreCurrentActiveBuffers();
JCDSRenderTexture.SetMultipleRenderTargets(cam, mrtGBuffer, resultRT, 0);
}
private void OnGUI_DrawRTs(JCDSRenderTexture rt, ref Rect rect, bool isNewColumn)
{
int numRTs = rt.numRTs;
for (int i = 0; i < numRTs; ++i)
{
GUI.DrawTexture(rect, rt.GetRenderTexture(i), ScaleMode.ScaleToFit, false);
rect.y += rect.height;
}
if (isNewColumn)
{
rect.x += rect.width;
rect.y = 0;
}
}
private void OnDestroy()
{
if (mrtGBuffer != null)
{
mrtGBuffer.Destroy();
mrtGBuffer = null;
}
if (resultRT != null)
{
resultRT.Destroy();
resultRT = null;
}
if (ssrRT != null)
{
ssrRT.Destroy();
ssrRT = null;
}
if (doubleFaceDepthRT != null)
{
doubleFaceDepthRT.Destroy();
doubleFaceDepthRT = null;
}
if (compositeResultBufferMtrl != null)
{
Material.Destroy(compositeResultBufferMtrl);
compositeResultBufferMtrl = null;
}
if (ssrMtrl != null)
{
Material.Destroy(ssrMtrl);
ssrMtrl = null;
}
frontFaceDepthShader = null;
backFaceDepthShader = null;
s_instance = null;
}
private void OnPostRender()
{
doubleFaceDepthRT.SetActiveRenderTexture(0);
JCDSRenderTexture.ClearActiveRenderTexture(true, true, Color.black, 1.0f);
JCDSRenderTexture.SetMultipleRenderTargets(doubleFaceDepthCam, doubleFaceDepthRT, doubleFaceDepthRT, 0);
doubleFaceDepthCam.RenderWithShader(frontFaceDepthShader, null);
JCDSRenderTexture.ClearActiveRenderTexture(true, false, Color.black, 1.0f);
doubleFaceDepthCam.RenderWithShader(backFaceDepthShader, null);
resultRT.SetActiveRenderTexture(0);
JCDSRenderTexture.ClearActiveRenderTexture(true, true, Color.black, 0.0f);
compositeResultBufferMtrl.SetTexture(shaderPropId_diffuseBuffer, mrtGBuffer.GetRenderTexture(0));
compositeResultBufferMtrl.SetTexture(shaderPropId_normalBuffer, mrtGBuffer.GetRenderTexture(1));
compositeResultBufferMtrl.SetTexture(shaderPropId_positionBuffer, mrtGBuffer.GetRenderTexture(2));
compositeResultBufferMtrl.SetTexture(shaderPropId_resultBuffer, resultRT.GetRenderTexture(0));
compositeResultBufferMtrl.SetTexture(shaderPropId_ssrBuffer, ssrRT.GetRenderTexture(0));
int numDirLights = dirLights == null ? 0 : dirLights.Length;
for (int i = 0; i < numDirLights; ++i)
{
Light light = dirLights[i];
if (light != null && light.enabled && light.gameObject.activeSelf)
{
Vector3 dir = -light.transform.forward;
compositeResultBufferMtrl.SetVector(shaderPropId_dirLightDir, new Vector4(dir.x, dir.y, dir.z, light.intensity));
compositeResultBufferMtrl.SetColor(shaderPropId_dirLightColor, light.color);
DrawScreenQuad(compositeResultBufferMtrl, 0, false, false);
}
}
int numPointLights = pointLights == null ? 0 : pointLights.Length;
for (int i = 0; i < numPointLights; ++i)
{
Light light = pointLights[i];
if (light != null && light.enabled && light.gameObject.activeSelf)
{
compositeResultBufferMtrl.SetVector(shaderPropId_pointLightPos, light.transform.position);
compositeResultBufferMtrl.SetColor(shaderPropId_pointLightColor, light.color);
compositeResultBufferMtrl.SetVector(shaderPropId_pointLightRange, new Vector4(1.0f / light.range, light.intensity, 0, 0));
compositeResultBufferMtrl.SetPass(2);
Graphics.DrawMeshNow(pointLightMesh, Matrix4x4.TRS(light.transform.position, Quaternion.identity, Vector3.one * light.range * 2));
}
}
ssrMtrl.SetTexture(shaderPropId_diffuseBuffer, mrtGBuffer.GetRenderTexture(0));
ssrMtrl.SetTexture(shaderPropId_normalBuffer, mrtGBuffer.GetRenderTexture(1));
ssrMtrl.SetTexture(shaderPropId_positionBuffer, mrtGBuffer.GetRenderTexture(2));
ssrMtrl.SetTexture(shaderPropId_resultBuffer, resultRT.GetRenderTexture(0));
ssrMtrl.SetTexture(shaderPropId_doubleFaceDepthBuffer, doubleFaceDepthRT.GetRenderTexture(0));
ssrMtrl.SetMatrix(shaderPropId_ssrVMatrix, cam.worldToCameraMatrix);
ssrMtrl.SetMatrix(shaderPropId_ssrPMatrix, cam.projectionMatrix);
ssrMtrl.SetVector(shaderPropId_screenPixelSize, new Vector2(Screen.width, Screen.height));
ssrRT.SetActiveRenderTexture(0);
JCDSRenderTexture.ClearActiveRenderTexture(true, true, Color.black, 1.0f);
DrawScreenQuad(ssrMtrl, 0, false, false);
JCDSRenderTexture.ResetActiveRenderTexture();
DrawScreenQuad(compositeResultBufferMtrl, 3, true, true);
JCDSRenderTexture.RestoreCurrentActiveBuffers(cam);
}