RM_Basic_Algorithm.hlsl

float3 cameraVec = -normalize(Parameters.CameraVector);
float3 cameraPos = ResolvedView.WorldCameraOrigin;

int raySteps = 30;
float marchingDist = 10;

float stepSize = marchingDist/raySteps;

float totalDensity = 0;

for(int i = 0; i < raySteps, i++){
	float3 pos =  cameraPos + cameraVec * stepSize * i;
	float sample = Texture3DSample(Tex,GetMaterialSharedSampler(ShapeTexSampler,Material.Wrap_WorldGroupSettings),pos)).r;
	totalDensity += sample / stepSize;
}

return totalDensity;